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If they do, you will have to enable PPPoA. All NAT and routing settings are disabled in this mode. These fields allow you to supply a host and domain name for the Gateway.

Some ISPs require these names as identification. You may have to check with your ISP to see if your broadband Internet service has been configured with a host and domain name.

In most cases, you can leave these fields blank. Select Manual and enter the value desired in the Size field.

It is recommended that you leave this value in the to range. By default, MTU is configured automatically. In most cases, keeping the default values will work.

The default value is Unless you already have one, it is highly recommended that you leave the Gateway enabled as a DHCP server.

This value must be The number will vary depending on the starting IP address entered. The Client Lease Time is the amount of time a computer will be allowed connection to the Gateway with its current dynamic IP address.

The Gateway will use these for quicker access to functioning DNS servers. Otherwise, leave this field blank. If desired, check the Automatically adjust clock for daylight saving changes checkbox.

When finished making your changes on this tab, click the Save Settings button to save these changes, or click the Cancel Changes button to undo your changes.

It is useful when you are hosting your own website, FTP server, or other server behind the Gateway. Figure DynDNS. Because it is dynamic, it will change.

The status of the DDNS service connection is displayed here. Because it is dynamic, this will change. NAT is a security feature that is enabled by default.

It enables the Gateway to translate IP addresses of your local area network to a different IP address for the Internet.

To disable NAT, click the Disabled radio button. If you have multiple routers, you may want to use the Routing Information Protocol RIP so the routers can exchange routing information with each other.

To use RIP, select the Enabled radio button. Otherwise, keep the default, Disabled. To use RIP version 1 for routing, select the Enabled radio button.

This setting is available when you have configured a static route and you need to choose an interface for that route. The RIP protocol regularly broadcasts routing information to other Gateways on the network.

RIP can be sent using either methods. If you want to use multicasting, select Multicast. If you want to use Broadcast, select Broadcast.

If the Gateway is connected to more than one network, it may be necessary to set up a static route between them. A static route is a pre-determined pathway that network information must travel to reach a specific host or network.

Select the number of the static route from the drop-down menu. The Gateway supports up to 20 static route entries.

If you need to delete a route, then select the entry and click the Delete This Entry button. The Destination IP Address is the address of the remote network or host to which you want to assign a static route.

Enter the IP address of the host for which you wish to create a static route. If you are building a route to an entire network, be sure that the network portion of the IP address is set to 0.

Enter the Subnet Mask also known as the Network Mask , which determines which portion of an IP address is the network portion, and which portion is the host portion.

Enter the IP address of the gateway device that allows for contact between the Gateway and the remote network or host. Hop Count is the number of hops to each node until the destination is reached 16 hops maximum.

Enter the Hop Count in the field provided. Click the Show Routing Table button to open a screen displaying how data is routed through your local network.

Click the Refresh button to update the information. Click the Close button to return to the previous screen.

Figure Routing Table When finished making your changes on this tab, click the Save Settings button to save these changes, or click the Cancel Changes button to undo your changes.

If you have If you have only If you want to disable wireless networking, select Disabled. Enter the name for your wireless network into the field.

The SSID is the network name shared among all devices in a wireless network. It must be identical for all devices in the wireless network.

It is case-sensitive and must not exceed 32 alphanumeric characters, which may be any keyboard character. Linksys recommends that you change the default SSID linksys to a unique name of your choice.

Select the appropriate channel from the list provided to correspond with your network settings. All devices in your wireless network must use the same channel in order to function correctly.

Wireless computers or clients will automatically detect the wireless channel of the Gateway. When wireless computers or clients survey the local area for wireless networks to associate with, they will detect the SSID broadcast by the Gateway.

These are briefly discussed here. Then enter a Group Key Renewal period, which instructs the Gateway how often it should change the encryption keys.

An acronym for Wired Equivalent Privacy, WEP is an encryption method used to protect your wireless data communications. WEP uses bit or bit keys to provide access control to your network and encryption security for every data transmission.

To decode data transmissions, all devices in a network must use an identical WEP key. Higher encryption levels offer higher levels of security, but due to the complexity of the encryption, they may decrease network performance.

To enable WEP, select 64 bits 10 hex digits or bits 26 hex digits. Make sure that the receiving device wireless computer or client is using the same key.

Instead of manually entering WEP keys, you can enter a passphrase. This passphrase is used to generate one or more WEP keys.

It is case-sensitive and should not be longer than 32 alphanumeric characters. If you want to communicate with non-Linksys wireless products or Windows XP Zero Configuration, make a note of the WEP key generated in the Key 1 field, and enter it manually in the wireless computer or client.

WEP keys enable you to create an encryption scheme for wireless network transmissions. If you are not using a Passphrase, then manually enter a set of values.

Do not leave a key field blank, and do not enter all zeroes; they are not valid key values. If you are using bit WEP encryption, the key must be exactly 10 hexadecimal characters in length.

If you are using bit WEP encryption, the key must be exactly 26 hexadecimal characters in length. Select Allow All you want all computers to have access to the wireless network.

To restrict access to the network, select Restrict Access, and then select Prevent to block access for the designated computers or Permit only to permit access for the designated computers.

Enter the MAC addresses of the computers you want to designate. Click the Refresh button to get the most up-to-date information. To only allow Open System authentication, select Open System.

For Shared Key authentication, the sender and recipient use a WEP key for both authentication and data encryption. To only allow Shared Key authentication, select Shared Key.

It is recommended that this option be left in the default Auto mode, because some clients cannot be configured for Shared Key.

The rate should be set depending on the speed of your wireless network. Select from a range of transmission speeds, or keep the default setting, Auto, to have the Gateway automatically use the fastest possible data rate and enable the Auto-Fallback feature.

Auto-Fallback will negotiate the best possible connection speed between the Gateway and a wireless client. The Beacon Interval value indicates the frequency interval of the beacon.

A beacon is a packet broadcast by the Gateway to synchronize the wireless network. The default value is 1. A DTIM field is a countdown field informing clients of the next window for listening to broadcast and multicast messages.

Its clients hear the beacons and awaken to receive the broadcast and multicast messages. This value should remain at its default setting of It specifies the maximum size for a packet before data is fragmented into multiple packets.

If you experience a high packet error rate, you may slightly increase the Fragmentation Threshold. Setting the Fragmentation Threshold too low may result in poor network performance.

Only minor modifications of this value are recommended. If you encounter inconsistent data flow, only minor modifications are recommended.

The Gateway sends Request to Send RTS frames to a particular receiving station and negotiates the sending of a data frame. Use these features to enhance the security of your network.

Configure these settings so the Gateway will permit VPN tunnels to pass through. Some ISPs may request that you use this feature on the Gateway.

Firewall You can enable or disable the firewall, select filters to block specific Internet data types, and block anonymous Internet requests.

To use the firewall, click Enable. If you do not want to use the firewall, click Disable. Use of WAN proxy servers may compromise the Gateway's security.

To enable proxy filtering, click the checkbox. A cookie is data stored on your computer and used by Internet sites when you interact with them.

To enable cookie filtering, click the checkbox. Java is a programming language for websites. If you deny Java Applets, you run the risk of not having access to Internet sites created using this programming language.

To enable Java Applet filtering, click the checkbox. ActiveX is a programming language for websites. If you deny ActiveX, you run the risk of not having access to Internet sites created using this programming language.

To enable ActiveX filtering, click the checkbox. Select Block Anonymous Internet Requests to block anonymous Internet requests or deselect it to allow anonymous Internet requests.

If you want to see activity logs for your security measures, then click the View Logs button. Click the Clear button to clear the log information.

Click the pageRefresh button to refresh the information. Click the Previous Page button to go to the previous page of information.

Click the Next Page button to move to the next page of information. You can set up Internet access policies for specific computers and block websites by URL address or keyword.

Internet Access Policy. Access can be managed by a policy. Use the settings on this screen to establish an access policy after the Save Settings button is clicked.

To view all the policies, click the Summary button. Policies can be deleted from the Summary screen by selecting the policy or policies and clicking the Delete button.

To return to the Internet Access screen, click the Close button. Policies are disabled by default. To enable a policy, select the policy number from the drop-down menu, and click the radio button beside Enable.

To create an Internet Access policy: 1. Select a number from the Internet Access Policy drop-down menu.

To enable this policy, click the radio button beside Enable. Enter a Policy Name in the field provided. The List of PCs screen will appear.

After making your changes, click the Save Settings button to apply your changes or Cancel Changes to cancel your changes.

Click the appropriate option, Deny or Allow, depending on whether you want to block or allow Internet access for the PCs you listed on the List of PCs screen.

Decide which days and what times you want this policy to be enforced. Select the individual days during which the policy will be in effect, or select Everyday.

Then enter a range of hours and minutes during which the policy will be in effect, or select 24 Hours. If you want to block websites using specific keywords, enter each keyword in a separate field next to Website Blocking by Keyword.

Figure List of PCs 9. You can filter access to various services accessed over the Internet, such as FTP or telnet, by selecting services from the drop-down menus next to Blocked Services.

Then enter the range of ports you want to filter. Then the Port Services screen will appear. Select its protocol from the Protocol drop-down menu, and enter its range in the Port Range fields.

Then click the Add button. To modify a service, select it from the list on the right. Change its name, protocol setting, or port range.

Then click the Modify button. To delete a service, select it from the list on the right. Then click the Delete button. When you are finished making changes on the Port Services screen, click the Apply button to save changes.

If you want to cancel your changes, click the Cancel button. To close the Port Services screen and return to the Access Restrictions screen, click the Close button.

When users send this type of request to your network via the Internet, the Gateway will forward those requests to the appropriate computer.

In this section you will customize the port service for your applications. Enter the name of the application in the field provided.

Enter the External and Internal Port numbers. Enter the IP Address of the appropriate computer. Click Enabled to enable forwarding for the chosen application.

Specialized Internet applications are any applications that use Internet access to perform functions such as videoconferencing or online gaming.

Some Internet applications may not require any forwarding. Enter the starting and ending numbers of the port range you wish to forward.

Click the Enable checkbox to enable forwarding for the chosen application. For this feature, the Gateway will watch outgoing data for specific port numbers.

The Gateway will remember the IP address of the computer that sends a transmission requesting data, so that when the requested data returns through the Gateway, the data is pulled back to the proper computer by way of IP address and port mapping rules.

Enter the name you wish to give each application. Enter the starting and ending port numbers of the Triggered Range.

Enter the starting and ending port numbers of the Forwarded Range. Click the Enable checkbox to enable port triggering for the chosen application.

DMZ hosting forwards all the ports for one computer at the same time, which differs from Port Range Forwarding, which can only forward a maximum of 10 ranges of ports.

This feature allows one local user to be exposed to the Internet for use of a special-purpose service such as Internet gaming and videoconferencing.

To use this feature, select Enable. To disable DMZ, select Disable. To use QoS, select Enable. Otherwise, keep the default, Disable.

Depending on the settings of the QoS screen, this feature will assign information a high or low priority for the five preset applications and three additional applications that you specify.

For example, after developing the HTML pages for a website on a local machine, they are typically uploaded to the web server using FTP.

The communications protocol used to connect to servers on the World Wide Web. Its primary function is to establish a connection with a web server and transmit HTML pages to the client web browser.

It allows a user at a terminal or computer to log onto a remote device and run a program. The standard e-mail protocol on the Internet.

A standard mail server commonly used on the Internet. It provides a message store that holds incoming e-mail until users log on and download it.

POP3 is a simple system with little selectivity. All pending messages and attachments are downloaded at the same time. Specific Port.

You can add three more applications by entering their respective port numbers in these fields. When you have finished making changes to this screen, click the Save Settings button to save the changes, or click the Cancel Changes button to undo your changes.

Gateway Access Local Gateway Access. The default username and password is admin. Select the number of the user from the drop-down menu.

Enter the default username, admin. It is recommended that you change the default username to one of your choice.

It is recommended that you change the default password, admin, to one of your choice. Remote Gateway Access. This feature allows you to access the Gateway from a remote location, via the Internet.

This feature allows you to manage the Gateway from a remote location via the Internet. To enable Remote Management, click Enable.

Enter the port number you will use to remotely access the Gateway. Specify the IP address es allowed to remotely manage the Gateway.

To allow all IP addresses with no restrictions, select All. Figure Management Remote Upgrade. To enable Remote Upgrade, click Enable.

Enter the name of the Gateway. Enter the IP address of the remote host computer that will receive the trap messages. To enable UPnP, click Enable.

Otherwise, click Disable. Otherwise, select Disable. It also provides logs for VPN and firewall events.

To enable log reporting, click Enabled. Enter the IP Address of the computer that will receive logs. You will need Logviewer software to view these logs.

This free software is available for download from www. To enable E-Mail Alerts, click Enabled. Enter the number of Denial of Service attacks that will trigger an e-mail alert.

Enter the e-mail address that will receive alert logs. Enter the return address for the e-mail alerts. To view the logs, click the View Logs button.

A new screen will appear. From the drop-down menu, you can select which log you want to view. Enter the IP address that you want to ping.

Enter the size of the packet. Enter the number of times that you want to ping. Enter the ping interval how often the target IP address will be pinged in milliseconds.

Enter the ping timeout how long before the ping test times out in milliseconds. Click the Start Test button to start the Ping Test.

The results of the ping test will be shown here. Then follow the on-screen instructions. Then follow the on-screen instructions to locate the file.

After you have selected the file, click the Restore button. If you wish to restore the Gateway to its factory default settings and lose all your settings, click Yes.

To begin the restore process, click the Save Settings button to save these changes, or click the Cancel Changes button to undo your changes.

Extract the file on your computer. Click the Browse button to find the firmware upgrade file. Double-click the firmware file that you have downloaded and extracted.

Click the Upgrade button, and follow the on-screen instructions. To cancel the firmware upgrade, click the Cancel Upgrades button.

In most cases you should use the hard reboot. The soft reboot is similar to restarting your computer without physically powering down the computer.

Reboot Reboot Mode. To reboot your Gateway, select Hard or Soft. Choose Hard to power cycle the Gateway or Soft. Figure Reboot To begin the reboot process, click the Save Settings button.

When a screen appears asking you if you really want to reboot the Gateway, click OK. Click the Cancel Changes button if you want to cancel the reboot.

DHCP Renew. Click the Refresh button if you want to refresh the displayed information. This data is stored in temporary memory and changes periodically.

Click the Close button to return to the Local Network screen. Figure Local Network Click the Refresh button if you want to refresh the displayed information.

Click the Wireless Clients Connected button to view a list of the wireless clients connected to the Gateway, along with their computer names, IP addresses, and MAC addresses.

Click the Close button to return to the Wireless screen. Read the descriptions below to help you solve your problems. Common Problems and Solutions 1.

I need to set a static IP address on a computer. Click Start, Settings, and Control Panel. Double-click Network.

Highlight it and click the Properties button. Enter a unique IP address that is not used by any other computer on the network connected to the Gateway.

Make sure that each IP address is unique for each computer or network device. Click the Gateway tab, and in the New Gateway prompt, enter Click the Add button to accept the entry.

Enter the Host and Domain names e. Restart the computer when asked. Double-click Network and Dial-Up Connections.

Right-click the Local Area Connection that is associated with the Ethernet adapter you are using, and select the Properties option.

Select Use the following IP address option. Enter the Subnet Mask, Enter the Default Gateway, Contact your ISP or go on its website to find the information.

Restart the computer if asked. If you are using the Classic interface where the icons and menus look like previous Windows versions , please follow the instructions for Windows Click Start and Control Panel.

Click the Properties button. I want to test my Internet connection. Make sure Obtain IP address automatically is selected in the settings.

For Windows NT 4. Double-click the Network icon. Open a command prompt. In the Open field, type in command. Press the Enter key or click the OK button.

In the Open field, type cmd. In the command prompt, type ping In the command prompt, type ping www.

If you cannot open a webpage, try the ping command from a different computer to verify that your original computer is not the cause of the problem.

Try the ping command from a different computer to verify that your original computer is not the cause of the problem. I am not getting an IP address on the Internet with my Internet connection.

Make sure you are using the right Internet connection settings. Make sure you have the right cable. Turn off the computer and Gateway.

Wait 30 seconds, and then turn on the Gateway, and computer. AH has limitations due to occasional incompatibility with the NAT standard.

Y Y being any number from 1 to Note that each IP address must be unique within the network. I need to set up a server behind my Gateway and make it available to the public.

To use a server like a web, ftp, or mail server, you need to know the respective port numbers they are using. You can get more information by viewing the documentation provided with the server you installed.

We will be setting up web, ftp, and mail servers. Enter any name you want to use for the Customized Application.

Enter the External Port range of the service you are using. For example, if you have a web server, you would enter the range 80 to Enter the IP address of the computer or network device that you want the port server to go to.

Check the Enable option for the port services you want to use. I need to set up online game hosting or use other Internet applications.

If you want to play online games or use Internet applications, most will work without doing any port forwarding or DMZ hosting. There may be cases when you want to host an online game or Internet application.

This would require you to set up the Gateway to deliver incoming packets or data to a specific computer. This also applies to the Internet applications you are using.

The best way to get the information on what port services to use is to go to the website of the online game or application you want to use.

Follow these steps to set up online game hosting or use a certain Internet application: 1.

For example, if you want to host Unreal Tournament UT , you would enter the range to If you are having difficulties getting any Internet game, server, or application to function properly, consider exposing one computer to the Internet using DeMilitarized Zone DMZ hosting.

This option is available when an application requires too many ports or when you are not sure which port services to use.

Make sure you disable all the forwarding entries if you want to successfully use DMZ hosting, since forwarding has priority over DMZ hosting.

In other words, data that enters the Gateway will be checked first by the forwarding settings.

If the port number that the data enters from does not have port forwarding, then the Gateway will send the data to whichever computer or network device you set for DMZ hosting.

Click Enabled and enter the IP of the computer. Check the Port Forwarding pages and disable or remove the entries you have entered for forwarding.

Keep this information in case you want to use it at a later time. I forgot my password, or the password prompt always appears when I am saving settings to the Gateway.

If you are still getting prompted for a password when saving settings, then perform the following steps: 1.

Enter a different password in the Gateway Password field, and enter the same password in the second field to confirm the password.

Click the Save Settings button. If you have proxy settings, you need to disable these on your computer. Because the Gateway is the gateway for the Internet connection, the computer does not need any proxy settings to gain access.

Please follow these directions to verify that you do not have any proxy settings and that the browser you use is set to connect directly to the LAN.

Double-click Internet Options. Click the Connections tab. Click the LAN settings button and remove anything that is checked. Click the OK button to go back to the previous screen.

Click the option Never dial a connection. This will remove any dial-up pop-ups for PPPoE users.

Make sure you have Direct connection to the Internet selected on this screen. Close all the windows to finish. To start over, I need to set the Gateway to factory default.

Hold the Reset button for 10 seconds and then release it. This will return the Internet settings, password, forwarding, and other settings on the Gateway to the factory default settings.

In other words, the Gateway will revert to its original factory configuration. I need to upgrade the firmware. In order to upgrade the firmware with the latest features, you need to go to the Linksys international website and download the latest firmware at www.

Click the Products tab and select the Gateway. The upgrade could have failed for a number of reasons. PPPoE is not actually a dedicated or always-on connection.

This may not always work, so you may need to reestablish connection periodically. Enter the username and password, if asked.

Click the Status tab, and click the Connect button. You may see the login status display as Connecting. Press the F5 key to refresh the screen, until you see the login status display as Connected.

Click the Save Settings button to continue. By default, the MTU is set automatically. Look for the MTU option, and select Manual.

In the Size field, enter Try this list of values, one value at a time, in this order, until your problem is solved: The Power LED flashes continuously.

The Power LED lights up when the device is first powered up. In the meantime, the system will boot up itself and check for proper operation.

After finishing the checking procedure, the LED remains steady to show that the system is working fine. If the LED continues to flash after this time, the device is not working properly.

Try to flash the firmware by assigning a static IP address to the computer, and then upgrade the firmware. Try using the following settings, IP Address: Restart the computer that is having a problem.

Ensure that it is connected and powered on. Connect to it and check its settings. If you cannot connect to it, check the LAN and power connections.

You can remove the Gateway to verify a direct connection. Make sure that Internet Explorer is set to Never dial a connection.

Make sure that Netscape Navigator is set to Direct connection to the Internet. Click File. This is a hard refresh, which will force Windows Explorer to load new webpages, not cached ones.

Click Internet Options. Click the Security tab. Click the Default level button. Make sure the security level is Medium or lower.

The Gateway will support up to IP addresses. Yes, it is a built-in feature that is enabled by default. Where is the Gateway installed on the network?

This adds a level of security since the address of a computer connected to the private LAN is never transmitted on the Internet.

The user may have many private addresses behind this single address provided by the ISP. Yes, but Linksys does not, at this time, provide technical support for setup, configuration or troubleshooting of any non-Windows operating systems.

Does the Gateway support ICQ send file? Then set the firewall time-out to 80 seconds in the firewall setting.

The Internet user can then send a file to a user behind the Gateway. What do I need to do? If you have a dedicated Unreal Tournament server running, you need to create a static IP for each of the LAN computers and forward ports , , , , , and to the IP address of the server.

If you want to use the UT Server Admin, forward another port. Port usually works well but is used for remote admin. You may have to disable this.

Then in the [UWeb. WebServer] section of the server. Can multiple gamers on the LAN get on one game server and play simultaneously with just one public IP address?

It depends on which network game or what kind of game server you are using. For example, Unreal Tournament supports multi-login with one public IP.

The default client port for Half-Life is This lets multiple computers connect to the same server. One problem: Version 1. Just forward port to the local IP address of the server computer.

Make sure that your proxy setting is disabled in the browser. Check our website at www. If all else fails in the installation, what can I do?

Reset your DSL modem by powering the unit off and then on. Obtain and flash the latest firmware release that is readily available on the Linksys international website, www.

How will I be notified of new Gateway firmware upgrades? All Linksys firmware upgrades are posted on the Linksys international website at www.

Will the Gateway function in a Macintosh environment? I am not able to get the web configuration screen for the Gateway. What can I do? You may have to remove the proxy settings on your Internet browser, e.

Check with your browser documentation, and make sure that your browser is set to connect directly and that any dial-up is disabled. What is DMZ Hosting?

How many ports can be simultaneously forwarded? Theoretically, the Gateway can establish sessions at the same time, but you can only forward 10 ranges of ports.

What are the advanced features of the Gateway? What is the maximum number of VPN sessions allowed by the Gateway?

The maximum number depends on many factors. Consult your ISP to obtain this information. Under the Port Forwarding tab, set port forwarding to for the computer on which you are using mIRC.

Can I run an application from a remote computer over the wireless network? This will depend on whether or not the application is designed to be used over a network.

What is the IEEE It is one of the IEEE standards for wireless networks. The The product supports the following IEEE What is ad-hoc mode?

When a wireless network is set to ad-hoc mode, the wireless-equipped computers are configured to communicate directly with each other, peer-to-peer without the use of an access point.

What is infrastructure mode? When a wireless network is set to infrastructure mode, the wireless network is configured to communicate with a network through a wireless access point.

What is roaming? Roaming is the ability of a portable computer user to communicate continuously while moving freely throughout an area greater than that covered by a single access point.

Before using the roaming function, the computer must make sure that it is the same channel number with the access point of dedicated coverage area.

To achieve true seamless connectivity, the wireless LAN must incorporate a number of different functions. Each node and access point, for example, must always acknowledge receipt of each message.

Each node must maintain contact with the wireless network even when not actually transmitting data. Achieving these functions simultaneously requires a dynamic RF networking technology that links access points and nodes.

First, it evaluates such factors as signal strength and quality, as well as the message load currently being carried by each access point and the distance of each access point to the wired backbone.

Based on that information, the node next selects the right access point and registers its address. Communications between end node and host computer can then be transmitted up and down the backbone.

When a node no longer receives acknowledgment from its original access point, it undertakes a new search. Upon finding a new access point, it then re-registers, and the communication process continues.

The FCC and their counterparts outside of the U. Spectrum in the vicinity of 2. This presents a truly revolutionary opportunity to place convenient high-speed wireless capabilities in the hands of users around the globe.

What is Spread Spectrum? Spread Spectrum technology is a wideband radio frequency technique developed by the military for use in reliable, secure, mission-critical communications systems.

It is designed to trade off bandwidth efficiency for reliability, integrity, and security. In other words, more bandwidth is consumed than in the case of narrowband transmission, but the trade-off produces a signal that is, in effect, louder and thus easier to detect, provided that the receiver knows the parameters of the spread-spectrum signal being broadcast.

If a receiver is not tuned to the right frequency, a spread-spectrum signal looks like background noise. What is DSSS? What is FHSS?

And what are their differences? Frequency-Hopping Spread-Spectrum FHSS uses a narrowband carrier that changes frequency in a pattern that is known to both transmitter and receiver.

Properly synchronized, the net effect is to maintain a single logical channel. To an unintended receiver, FHSS appears to be short-duration impulse noise.

This bit pattern is called a chip or chipping code. The longer the chip, the greater the probability that the original data can be recovered.

Even if one or more bits in the chip are damaged during transmission, statistical techniques embedded in the radio can recover the original data without the need for retransmission.

To an unintended receiver, DSSS appears as low power wideband noise and is rejected ignored by most narrowband receivers. Will the information be intercepted while it is being transmitted through the air?

WLAN features two-fold protection in security. On the hardware side, as with Direct Sequence Spread Spectrum technology, it has the inherent security feature of scrambling.

What is WEP? What is a MAC Address? The Media Access Control MAC address is a unique number assigned by the manufacturer to any Ethernet networking device, such as a network adapter, that allows the network to identify it at the hardware level.

For all practical purposes, this number is usually permanent. Unlike IP addresses, which can change every time a computer logs onto the network, the MAC address of a device stays the same, making it a valuable identifier for the network.

Press the Reset button on the back panel for about ten seconds. This will reset the Gateway to its default settings.

How do I resolve issues with signal loss? There is no way to know the exact range of your wireless network without testing. Every obstacle placed between the Gateway and a wireless computer will create signal loss.

Lead glass, metal, concrete floors, water and walls will inhibit the signal and reduce range. Start with the Gateway and your wireless computer in the same room and move it away in small increments to determine the maximum range in your environment.

You may also try using different channels, as this may eliminate interference affecting only one channel. I have excellent signal strength, but I cannot see my network.

WEP is probably enabled on the Gateway, but not on your wireless adapter or vice versa. Verify that the same WEP keys and levels 64 or are being used on all nodes of your wireless network.

There are eleven available channels, ranging from 1 to 11, in North America. If your questions are not addressed here, refer to the Linksys international website, www.

The current generation of Linksys products provide several network security features, but they require specific action on your part for implementation.

So, keep the following in mind whenever you are setting up or using your wireless network. Security Precautions The following is a complete list of security precautions to take at least steps 1 through 5 should be followed : 1.

Change the default SSID. Change the default password for the Administrator account. Change the SSID periodically.

Use the highest encryption algorithm possible. Use WPA if it is available. Please note that this may reduce your network performance.

NOTE: Some of these security features are available only through the network gateway, router, or access point.

Change the WEP encryption keys periodically. Your network administrator is the only person who can change network settings. So, make it harder for a hacker to get that information.

There are several things to keep in mind about the SSID: 1. Disable Broadcast 2. Make it unique 3. Because it is dynamic, it will change.

The status of the DDNS service connection is displayed here. Because it is dynamic, this will change. NAT is a security feature that is enabled by default.

It enables the Gateway to translate IP addresses of your local area network to a different IP address for the Internet. To disable NAT, click the Disabled radio button.

If you have multiple routers, you may want to use the Routing Information Protocol RIP so the routers can exchange routing information with each other.

To use RIP, select the Enabled radio button. Otherwise, keep the default, Disabled. To use RIP version 1 for routing, select the Enabled radio button.

This setting is available when you have configured a static route and you need to choose an interface for that route.

The RIP protocol regularly broadcasts routing information to other Gateways on the network. RIP can be sent using either methods. If you want to use multicasting, select Multicast.

If you want to use Broadcast, select Broadcast. If the Gateway is connected to more than one network, it may be necessary to set up a static route between them.

A static route is a pre-determined pathway that network information must travel to reach a specific host or network.

Select the number of the static route from the drop-down menu. The Gateway supports up to 20 static route entries. If you need to delete a route, then select the entry and click the Delete This Entry button.

The Destination IP Address is the address of the remote network or host to which you want to assign a static route.

Enter the IP address of the host for which you wish to create a static route. If you are building a route to an entire network, be sure that the network portion of the IP address is set to 0.

Enter the Subnet Mask also known as the Network Mask , which determines which portion of an IP address is the network portion, and which portion is the host portion.

Enter the IP address of the gateway device that allows for contact between the Gateway and the remote network or host. Hop Count is the number of hops to each node until the destination is reached 16 hops maximum.

Enter the Hop Count in the field provided. Click the Show Routing Table button to open a screen displaying how data is routed through your local network.

Click the Refresh button to update the information. Click the Close button to return to the previous screen. Figure Routing Table When finished making your changes on this tab, click the Save Settings button to save these changes, or click the Cancel Changes button to undo your changes.

If you have If you have only If you want to disable wireless networking, select Disabled. Enter the name for your wireless network into the field.

The SSID is the network name shared among all devices in a wireless network. It must be identical for all devices in the wireless network.

It is case-sensitive and must not exceed 32 alphanumeric characters, which may be any keyboard character. Linksys recommends that you change the default SSID linksys to a unique name of your choice.

Select the appropriate channel from the list provided to correspond with your network settings. All devices in your wireless network must use the same channel in order to function correctly.

Wireless computers or clients will automatically detect the wireless channel of the Gateway. When wireless computers or clients survey the local area for wireless networks to associate with, they will detect the SSID broadcast by the Gateway.

These are briefly discussed here. Then enter a Group Key Renewal period, which instructs the Gateway how often it should change the encryption keys.

An acronym for Wired Equivalent Privacy, WEP is an encryption method used to protect your wireless data communications. WEP uses bit or bit keys to provide access control to your network and encryption security for every data transmission.

To decode data transmissions, all devices in a network must use an identical WEP key. Higher encryption levels offer higher levels of security, but due to the complexity of the encryption, they may decrease network performance.

To enable WEP, select 64 bits 10 hex digits or bits 26 hex digits. Make sure that the receiving device wireless computer or client is using the same key.

Instead of manually entering WEP keys, you can enter a passphrase. This passphrase is used to generate one or more WEP keys. It is case-sensitive and should not be longer than 32 alphanumeric characters.

If you want to communicate with non-Linksys wireless products or Windows XP Zero Configuration, make a note of the WEP key generated in the Key 1 field, and enter it manually in the wireless computer or client.

WEP keys enable you to create an encryption scheme for wireless network transmissions. If you are not using a Passphrase, then manually enter a set of values.

Do not leave a key field blank, and do not enter all zeroes; they are not valid key values. If you are using bit WEP encryption, the key must be exactly 10 hexadecimal characters in length.

If you are using bit WEP encryption, the key must be exactly 26 hexadecimal characters in length. Select Allow All you want all computers to have access to the wireless network.

To restrict access to the network, select Restrict Access, and then select Prevent to block access for the designated computers or Permit only to permit access for the designated computers.

Enter the MAC addresses of the computers you want to designate. Click the Refresh button to get the most up-to-date information.

To only allow Open System authentication, select Open System. For Shared Key authentication, the sender and recipient use a WEP key for both authentication and data encryption.

To only allow Shared Key authentication, select Shared Key. It is recommended that this option be left in the default Auto mode, because some clients cannot be configured for Shared Key.

The rate should be set depending on the speed of your wireless network. Select from a range of transmission speeds, or keep the default setting, Auto, to have the Gateway automatically use the fastest possible data rate and enable the Auto-Fallback feature.

Auto-Fallback will negotiate the best possible connection speed between the Gateway and a wireless client.

The Beacon Interval value indicates the frequency interval of the beacon. A beacon is a packet broadcast by the Gateway to synchronize the wireless network.

The default value is 1. A DTIM field is a countdown field informing clients of the next window for listening to broadcast and multicast messages.

Its clients hear the beacons and awaken to receive the broadcast and multicast messages. This value should remain at its default setting of It specifies the maximum size for a packet before data is fragmented into multiple packets.

If you experience a high packet error rate, you may slightly increase the Fragmentation Threshold. Setting the Fragmentation Threshold too low may result in poor network performance.

Only minor modifications of this value are recommended. If you encounter inconsistent data flow, only minor modifications are recommended.

The Gateway sends Request to Send RTS frames to a particular receiving station and negotiates the sending of a data frame.

Use these features to enhance the security of your network. Configure these settings so the Gateway will permit VPN tunnels to pass through.

Some ISPs may request that you use this feature on the Gateway. Firewall You can enable or disable the firewall, select filters to block specific Internet data types, and block anonymous Internet requests.

To use the firewall, click Enable. If you do not want to use the firewall, click Disable. Use of WAN proxy servers may compromise the Gateway's security.

To enable proxy filtering, click the checkbox. A cookie is data stored on your computer and used by Internet sites when you interact with them.

To enable cookie filtering, click the checkbox. Java is a programming language for websites. If you deny Java Applets, you run the risk of not having access to Internet sites created using this programming language.

To enable Java Applet filtering, click the checkbox. ActiveX is a programming language for websites. If you deny ActiveX, you run the risk of not having access to Internet sites created using this programming language.

To enable ActiveX filtering, click the checkbox. Select Block Anonymous Internet Requests to block anonymous Internet requests or deselect it to allow anonymous Internet requests.

If you want to see activity logs for your security measures, then click the View Logs button. Click the Clear button to clear the log information.

Click the pageRefresh button to refresh the information. Click the Previous Page button to go to the previous page of information.

Click the Next Page button to move to the next page of information. You can set up Internet access policies for specific computers and block websites by URL address or keyword.

Internet Access Policy. Access can be managed by a policy. Use the settings on this screen to establish an access policy after the Save Settings button is clicked.

To view all the policies, click the Summary button. Policies can be deleted from the Summary screen by selecting the policy or policies and clicking the Delete button.

To return to the Internet Access screen, click the Close button. Policies are disabled by default. To enable a policy, select the policy number from the drop-down menu, and click the radio button beside Enable.

To create an Internet Access policy: 1. Select a number from the Internet Access Policy drop-down menu. To enable this policy, click the radio button beside Enable.

Enter a Policy Name in the field provided. The List of PCs screen will appear. After making your changes, click the Save Settings button to apply your changes or Cancel Changes to cancel your changes.

Click the appropriate option, Deny or Allow, depending on whether you want to block or allow Internet access for the PCs you listed on the List of PCs screen.

Decide which days and what times you want this policy to be enforced. Select the individual days during which the policy will be in effect, or select Everyday.

Then enter a range of hours and minutes during which the policy will be in effect, or select 24 Hours.

If you want to block websites using specific keywords, enter each keyword in a separate field next to Website Blocking by Keyword.

Figure List of PCs 9. You can filter access to various services accessed over the Internet, such as FTP or telnet, by selecting services from the drop-down menus next to Blocked Services.

Then enter the range of ports you want to filter. Then the Port Services screen will appear. Select its protocol from the Protocol drop-down menu, and enter its range in the Port Range fields.

Then click the Add button. To modify a service, select it from the list on the right. Change its name, protocol setting, or port range.

Then click the Modify button. To delete a service, select it from the list on the right. Then click the Delete button.

When you are finished making changes on the Port Services screen, click the Apply button to save changes.

If you want to cancel your changes, click the Cancel button. To close the Port Services screen and return to the Access Restrictions screen, click the Close button.

When users send this type of request to your network via the Internet, the Gateway will forward those requests to the appropriate computer.

In this section you will customize the port service for your applications. Enter the name of the application in the field provided. Enter the External and Internal Port numbers.

Enter the IP Address of the appropriate computer. Click Enabled to enable forwarding for the chosen application. Specialized Internet applications are any applications that use Internet access to perform functions such as videoconferencing or online gaming.

Some Internet applications may not require any forwarding. Enter the starting and ending numbers of the port range you wish to forward.

Click the Enable checkbox to enable forwarding for the chosen application. For this feature, the Gateway will watch outgoing data for specific port numbers.

The Gateway will remember the IP address of the computer that sends a transmission requesting data, so that when the requested data returns through the Gateway, the data is pulled back to the proper computer by way of IP address and port mapping rules.

Enter the name you wish to give each application. Enter the starting and ending port numbers of the Triggered Range. Enter the starting and ending port numbers of the Forwarded Range.

Click the Enable checkbox to enable port triggering for the chosen application. DMZ hosting forwards all the ports for one computer at the same time, which differs from Port Range Forwarding, which can only forward a maximum of 10 ranges of ports.

This feature allows one local user to be exposed to the Internet for use of a special-purpose service such as Internet gaming and videoconferencing.

To use this feature, select Enable. To disable DMZ, select Disable. To use QoS, select Enable. Otherwise, keep the default, Disable.

Depending on the settings of the QoS screen, this feature will assign information a high or low priority for the five preset applications and three additional applications that you specify.

For example, after developing the HTML pages for a website on a local machine, they are typically uploaded to the web server using FTP.

The communications protocol used to connect to servers on the World Wide Web. Its primary function is to establish a connection with a web server and transmit HTML pages to the client web browser.

It allows a user at a terminal or computer to log onto a remote device and run a program. The standard e-mail protocol on the Internet. A standard mail server commonly used on the Internet.

It provides a message store that holds incoming e-mail until users log on and download it. POP3 is a simple system with little selectivity.

All pending messages and attachments are downloaded at the same time. Specific Port. You can add three more applications by entering their respective port numbers in these fields.

When you have finished making changes to this screen, click the Save Settings button to save the changes, or click the Cancel Changes button to undo your changes.

Gateway Access Local Gateway Access. The default username and password is admin. Select the number of the user from the drop-down menu.

Enter the default username, admin. It is recommended that you change the default username to one of your choice. It is recommended that you change the default password, admin, to one of your choice.

Remote Gateway Access. This feature allows you to access the Gateway from a remote location, via the Internet. This feature allows you to manage the Gateway from a remote location via the Internet.

To enable Remote Management, click Enable. Enter the port number you will use to remotely access the Gateway.

Specify the IP address es allowed to remotely manage the Gateway. To allow all IP addresses with no restrictions, select All.

Figure Management Remote Upgrade. To enable Remote Upgrade, click Enable. Enter the name of the Gateway. Enter the IP address of the remote host computer that will receive the trap messages.

To enable UPnP, click Enable. Otherwise, click Disable. Otherwise, select Disable. It also provides logs for VPN and firewall events.

To enable log reporting, click Enabled. Enter the IP Address of the computer that will receive logs. You will need Logviewer software to view these logs.

This free software is available for download from www. To enable E-Mail Alerts, click Enabled. Enter the number of Denial of Service attacks that will trigger an e-mail alert.

Enter the e-mail address that will receive alert logs. Enter the return address for the e-mail alerts.

To view the logs, click the View Logs button. A new screen will appear. From the drop-down menu, you can select which log you want to view.

Enter the IP address that you want to ping. Enter the size of the packet. Enter the number of times that you want to ping.

Enter the ping interval how often the target IP address will be pinged in milliseconds. Enter the ping timeout how long before the ping test times out in milliseconds.

Click the Start Test button to start the Ping Test. The results of the ping test will be shown here. Then follow the on-screen instructions.

Then follow the on-screen instructions to locate the file. After you have selected the file, click the Restore button. If you wish to restore the Gateway to its factory default settings and lose all your settings, click Yes.

To begin the restore process, click the Save Settings button to save these changes, or click the Cancel Changes button to undo your changes.

Extract the file on your computer. Click the Browse button to find the firmware upgrade file. Double-click the firmware file that you have downloaded and extracted.

Click the Upgrade button, and follow the on-screen instructions. To cancel the firmware upgrade, click the Cancel Upgrades button.

In most cases you should use the hard reboot. The soft reboot is similar to restarting your computer without physically powering down the computer.

Reboot Reboot Mode. To reboot your Gateway, select Hard or Soft. Choose Hard to power cycle the Gateway or Soft. Figure Reboot To begin the reboot process, click the Save Settings button.

When a screen appears asking you if you really want to reboot the Gateway, click OK. Click the Cancel Changes button if you want to cancel the reboot.

DHCP Renew. Click the Refresh button if you want to refresh the displayed information. This data is stored in temporary memory and changes periodically.

Click the Close button to return to the Local Network screen. Figure Local Network Click the Refresh button if you want to refresh the displayed information.

Click the Wireless Clients Connected button to view a list of the wireless clients connected to the Gateway, along with their computer names, IP addresses, and MAC addresses.

Click the Close button to return to the Wireless screen. Read the descriptions below to help you solve your problems.

Common Problems and Solutions 1. I need to set a static IP address on a computer. Click Start, Settings, and Control Panel.

Double-click Network. Highlight it and click the Properties button. Enter a unique IP address that is not used by any other computer on the network connected to the Gateway.

Make sure that each IP address is unique for each computer or network device. Click the Gateway tab, and in the New Gateway prompt, enter Click the Add button to accept the entry.

Enter the Host and Domain names e. Restart the computer when asked. Double-click Network and Dial-Up Connections.

Right-click the Local Area Connection that is associated with the Ethernet adapter you are using, and select the Properties option. Select Use the following IP address option.

Enter the Subnet Mask, Enter the Default Gateway, Contact your ISP or go on its website to find the information.

Restart the computer if asked. If you are using the Classic interface where the icons and menus look like previous Windows versions , please follow the instructions for Windows Click Start and Control Panel.

Click the Properties button. I want to test my Internet connection. Make sure Obtain IP address automatically is selected in the settings.

For Windows NT 4. Double-click the Network icon. Open a command prompt. In the Open field, type in command. Press the Enter key or click the OK button.

In the Open field, type cmd. In the command prompt, type ping In the command prompt, type ping www. If you cannot open a webpage, try the ping command from a different computer to verify that your original computer is not the cause of the problem.

Try the ping command from a different computer to verify that your original computer is not the cause of the problem. I am not getting an IP address on the Internet with my Internet connection.

Make sure you are using the right Internet connection settings. Make sure you have the right cable. Turn off the computer and Gateway.

Wait 30 seconds, and then turn on the Gateway, and computer. AH has limitations due to occasional incompatibility with the NAT standard.

Y Y being any number from 1 to Note that each IP address must be unique within the network. I need to set up a server behind my Gateway and make it available to the public.

To use a server like a web, ftp, or mail server, you need to know the respective port numbers they are using.

You can get more information by viewing the documentation provided with the server you installed. We will be setting up web, ftp, and mail servers.

Enter any name you want to use for the Customized Application. Enter the External Port range of the service you are using.

For example, if you have a web server, you would enter the range 80 to Enter the IP address of the computer or network device that you want the port server to go to.

Check the Enable option for the port services you want to use. I need to set up online game hosting or use other Internet applications.

If you want to play online games or use Internet applications, most will work without doing any port forwarding or DMZ hosting.

There may be cases when you want to host an online game or Internet application. This would require you to set up the Gateway to deliver incoming packets or data to a specific computer.

This also applies to the Internet applications you are using. The best way to get the information on what port services to use is to go to the website of the online game or application you want to use.

Follow these steps to set up online game hosting or use a certain Internet application: 1. For example, if you want to host Unreal Tournament UT , you would enter the range to If you are having difficulties getting any Internet game, server, or application to function properly, consider exposing one computer to the Internet using DeMilitarized Zone DMZ hosting.

This option is available when an application requires too many ports or when you are not sure which port services to use. Make sure you disable all the forwarding entries if you want to successfully use DMZ hosting, since forwarding has priority over DMZ hosting.

In other words, data that enters the Gateway will be checked first by the forwarding settings. If the port number that the data enters from does not have port forwarding, then the Gateway will send the data to whichever computer or network device you set for DMZ hosting.

Click Enabled and enter the IP of the computer. Check the Port Forwarding pages and disable or remove the entries you have entered for forwarding.

Keep this information in case you want to use it at a later time. I forgot my password, or the password prompt always appears when I am saving settings to the Gateway.

If you are still getting prompted for a password when saving settings, then perform the following steps: 1.

Enter a different password in the Gateway Password field, and enter the same password in the second field to confirm the password.

Click the Save Settings button. If you have proxy settings, you need to disable these on your computer.

Because the Gateway is the gateway for the Internet connection, the computer does not need any proxy settings to gain access.

Please follow these directions to verify that you do not have any proxy settings and that the browser you use is set to connect directly to the LAN.

Double-click Internet Options. Click the Connections tab. Click the LAN settings button and remove anything that is checked.

Click the OK button to go back to the previous screen. Click the option Never dial a connection. This will remove any dial-up pop-ups for PPPoE users.

Make sure you have Direct connection to the Internet selected on this screen. Close all the windows to finish. To start over, I need to set the Gateway to factory default.

Hold the Reset button for 10 seconds and then release it. This will return the Internet settings, password, forwarding, and other settings on the Gateway to the factory default settings.

In other words, the Gateway will revert to its original factory configuration. I need to upgrade the firmware.

In order to upgrade the firmware with the latest features, you need to go to the Linksys international website and download the latest firmware at www.

Click the Products tab and select the Gateway. The upgrade could have failed for a number of reasons. PPPoE is not actually a dedicated or always-on connection.

This may not always work, so you may need to reestablish connection periodically. Enter the username and password, if asked.

Click the Status tab, and click the Connect button. You may see the login status display as Connecting. Press the F5 key to refresh the screen, until you see the login status display as Connected.

Click the Save Settings button to continue. By default, the MTU is set automatically. Look for the MTU option, and select Manual.

In the Size field, enter Try this list of values, one value at a time, in this order, until your problem is solved: The Power LED flashes continuously.

The Power LED lights up when the device is first powered up. In the meantime, the system will boot up itself and check for proper operation.

After finishing the checking procedure, the LED remains steady to show that the system is working fine.

If the LED continues to flash after this time, the device is not working properly. Try to flash the firmware by assigning a static IP address to the computer, and then upgrade the firmware.

Try using the following settings, IP Address: Restart the computer that is having a problem. Ensure that it is connected and powered on.

Connect to it and check its settings. If you cannot connect to it, check the LAN and power connections. You can remove the Gateway to verify a direct connection.

Make sure that Internet Explorer is set to Never dial a connection. Make sure that Netscape Navigator is set to Direct connection to the Internet.

Click File. This is a hard refresh, which will force Windows Explorer to load new webpages, not cached ones. Click Internet Options.

Click the Security tab. Click the Default level button. Make sure the security level is Medium or lower. The Gateway will support up to IP addresses.

Yes, it is a built-in feature that is enabled by default. Where is the Gateway installed on the network? This adds a level of security since the address of a computer connected to the private LAN is never transmitted on the Internet.

The user may have many private addresses behind this single address provided by the ISP. Yes, but Linksys does not, at this time, provide technical support for setup, configuration or troubleshooting of any non-Windows operating systems.

Does the Gateway support ICQ send file? Then set the firewall time-out to 80 seconds in the firewall setting.

The Internet user can then send a file to a user behind the Gateway. What do I need to do?

If you have a dedicated Unreal Tournament server running, you need to create a static IP for each of the LAN computers and forward ports , , , , , and to the IP address of the server.

If you want to use the UT Server Admin, forward another port. Port usually works well but is used for remote admin. You may have to disable this.

Then in the [UWeb. WebServer] section of the server. Can multiple gamers on the LAN get on one game server and play simultaneously with just one public IP address?

It depends on which network game or what kind of game server you are using. For example, Unreal Tournament supports multi-login with one public IP.

The default client port for Half-Life is This lets multiple computers connect to the same server. One problem: Version 1. Just forward port to the local IP address of the server computer.

Make sure that your proxy setting is disabled in the browser. Check our website at www. If all else fails in the installation, what can I do?

Reset your DSL modem by powering the unit off and then on. Obtain and flash the latest firmware release that is readily available on the Linksys international website, www.

How will I be notified of new Gateway firmware upgrades? All Linksys firmware upgrades are posted on the Linksys international website at www.

Will the Gateway function in a Macintosh environment? I am not able to get the web configuration screen for the Gateway. What can I do?

You may have to remove the proxy settings on your Internet browser, e. Check with your browser documentation, and make sure that your browser is set to connect directly and that any dial-up is disabled.

What is DMZ Hosting? How many ports can be simultaneously forwarded? Theoretically, the Gateway can establish sessions at the same time, but you can only forward 10 ranges of ports.

What are the advanced features of the Gateway? What is the maximum number of VPN sessions allowed by the Gateway?

The maximum number depends on many factors. Consult your ISP to obtain this information. Under the Port Forwarding tab, set port forwarding to for the computer on which you are using mIRC.

Can I run an application from a remote computer over the wireless network? This will depend on whether or not the application is designed to be used over a network.

What is the IEEE It is one of the IEEE standards for wireless networks. The The product supports the following IEEE What is ad-hoc mode?

When a wireless network is set to ad-hoc mode, the wireless-equipped computers are configured to communicate directly with each other, peer-to-peer without the use of an access point.

What is infrastructure mode? When a wireless network is set to infrastructure mode, the wireless network is configured to communicate with a network through a wireless access point.

What is roaming? Roaming is the ability of a portable computer user to communicate continuously while moving freely throughout an area greater than that covered by a single access point.

Before using the roaming function, the computer must make sure that it is the same channel number with the access point of dedicated coverage area.

To achieve true seamless connectivity, the wireless LAN must incorporate a number of different functions. Each node and access point, for example, must always acknowledge receipt of each message.

Each node must maintain contact with the wireless network even when not actually transmitting data. Achieving these functions simultaneously requires a dynamic RF networking technology that links access points and nodes.

First, it evaluates such factors as signal strength and quality, as well as the message load currently being carried by each access point and the distance of each access point to the wired backbone.

Based on that information, the node next selects the right access point and registers its address. Communications between end node and host computer can then be transmitted up and down the backbone.

When a node no longer receives acknowledgment from its original access point, it undertakes a new search. Upon finding a new access point, it then re-registers, and the communication process continues.

The FCC and their counterparts outside of the U. Spectrum in the vicinity of 2. This presents a truly revolutionary opportunity to place convenient high-speed wireless capabilities in the hands of users around the globe.

What is Spread Spectrum? Spread Spectrum technology is a wideband radio frequency technique developed by the military for use in reliable, secure, mission-critical communications systems.

It is designed to trade off bandwidth efficiency for reliability, integrity, and security. In other words, more bandwidth is consumed than in the case of narrowband transmission, but the trade-off produces a signal that is, in effect, louder and thus easier to detect, provided that the receiver knows the parameters of the spread-spectrum signal being broadcast.

If a receiver is not tuned to the right frequency, a spread-spectrum signal looks like background noise. What is DSSS?

What is FHSS? And what are their differences? Frequency-Hopping Spread-Spectrum FHSS uses a narrowband carrier that changes frequency in a pattern that is known to both transmitter and receiver.

Properly synchronized, the net effect is to maintain a single logical channel. To an unintended receiver, FHSS appears to be short-duration impulse noise.

This bit pattern is called a chip or chipping code. The longer the chip, the greater the probability that the original data can be recovered.

Even if one or more bits in the chip are damaged during transmission, statistical techniques embedded in the radio can recover the original data without the need for retransmission.

To an unintended receiver, DSSS appears as low power wideband noise and is rejected ignored by most narrowband receivers.

Will the information be intercepted while it is being transmitted through the air? WLAN features two-fold protection in security. On the hardware side, as with Direct Sequence Spread Spectrum technology, it has the inherent security feature of scrambling.

What is WEP? What is a MAC Address? The Media Access Control MAC address is a unique number assigned by the manufacturer to any Ethernet networking device, such as a network adapter, that allows the network to identify it at the hardware level.

For all practical purposes, this number is usually permanent. Unlike IP addresses, which can change every time a computer logs onto the network, the MAC address of a device stays the same, making it a valuable identifier for the network.

Press the Reset button on the back panel for about ten seconds. This will reset the Gateway to its default settings.

How do I resolve issues with signal loss? There is no way to know the exact range of your wireless network without testing.

Every obstacle placed between the Gateway and a wireless computer will create signal loss. Lead glass, metal, concrete floors, water and walls will inhibit the signal and reduce range.

Start with the Gateway and your wireless computer in the same room and move it away in small increments to determine the maximum range in your environment.

You may also try using different channels, as this may eliminate interference affecting only one channel. I have excellent signal strength, but I cannot see my network.

WEP is probably enabled on the Gateway, but not on your wireless adapter or vice versa. Verify that the same WEP keys and levels 64 or are being used on all nodes of your wireless network.

There are eleven available channels, ranging from 1 to 11, in North America. If your questions are not addressed here, refer to the Linksys international website, www.

The current generation of Linksys products provide several network security features, but they require specific action on your part for implementation.

So, keep the following in mind whenever you are setting up or using your wireless network. Security Precautions The following is a complete list of security precautions to take at least steps 1 through 5 should be followed : 1.

Change the default SSID. Change the default password for the Administrator account. Change the SSID periodically.

Use the highest encryption algorithm possible. Use WPA if it is available. Please note that this may reduce your network performance.

NOTE: Some of these security features are available only through the network gateway, router, or access point.

Change the WEP encryption keys periodically. Your network administrator is the only person who can change network settings. So, make it harder for a hacker to get that information.

There are several things to keep in mind about the SSID: 1. Disable Broadcast 2. Make it unique 3.

While this option may be more convenient, it allows anyone to log into your wireless network. This includes hackers. Wireless networking products come with a default SSID set by the factory.

Hackers know these defaults and can check these against your network. Change your SSID to something unique and not something related to your company or the networking products you use.

Change your SSID regularly so that any hackers who have gained access to your wireless network will have to start from the beginning in trying to break in.

MAC Addresses. Enable MAC Address filtering. This makes it harder for a hacker to access your network with a random MAC Address.

WEP Encryption. There are several ways that WEP can be maximized: 1. Use the highest level of encryption possible 2.

Last, enter a Group Key Renewal period, which instructs the device how often it should change the encryption keys.

These security recommendations should help keep your mind at ease while you are enjoying the most flexible and convenient technology Linksys has to offer.

Windows 98 or Me Instructions 1. Click Start and Run. In the Open field, enter winipcfg. Then press the Enter key or the OK button. See Figure C Write down the Adapter Address as shown on your computer screen see Figure C This is the MAC address for your Ethernet adapter and is shown in hexadecimal as a series of numbers and letters.

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Click the Previous Page button to go to the previous page of information. Click the Next Page button to move to the next page of information.

You can set up Internet access policies for specific computers and block websites by URL address or keyword. Internet Access Policy. Access can be managed by a policy.

Use the settings on this screen to establish an access policy after the Save Settings button is clicked. To view all the policies, click the Summary button.

Policies can be deleted from the Summary screen by selecting the policy or policies and clicking the Delete button.

To return to the Internet Access screen, click the Close button. Policies are disabled by default. To enable a policy, select the policy number from the drop-down menu, and click the radio button beside Enable.

To create an Internet Access policy: 1. Select a number from the Internet Access Policy drop-down menu. To enable this policy, click the radio button beside Enable.

Enter a Policy Name in the field provided. The List of PCs screen will appear. After making your changes, click the Save Settings button to apply your changes or Cancel Changes to cancel your changes.

Click the appropriate option, Deny or Allow, depending on whether you want to block or allow Internet access for the PCs you listed on the List of PCs screen.

Decide which days and what times you want this policy to be enforced. Select the individual days during which the policy will be in effect, or select Everyday.

Then enter a range of hours and minutes during which the policy will be in effect, or select 24 Hours. If you want to block websites using specific keywords, enter each keyword in a separate field next to Website Blocking by Keyword.

Figure List of PCs 9. You can filter access to various services accessed over the Internet, such as FTP or telnet, by selecting services from the drop-down menus next to Blocked Services.

Then enter the range of ports you want to filter. Then the Port Services screen will appear. Select its protocol from the Protocol drop-down menu, and enter its range in the Port Range fields.

Then click the Add button. To modify a service, select it from the list on the right. Change its name, protocol setting, or port range.

Then click the Modify button. To delete a service, select it from the list on the right. Then click the Delete button. When you are finished making changes on the Port Services screen, click the Apply button to save changes.

If you want to cancel your changes, click the Cancel button. To close the Port Services screen and return to the Access Restrictions screen, click the Close button.

When users send this type of request to your network via the Internet, the Gateway will forward those requests to the appropriate computer.

In this section you will customize the port service for your applications. Enter the name of the application in the field provided.

Enter the External and Internal Port numbers. Enter the IP Address of the appropriate computer. Click Enabled to enable forwarding for the chosen application.

Specialized Internet applications are any applications that use Internet access to perform functions such as videoconferencing or online gaming.

Some Internet applications may not require any forwarding. Enter the starting and ending numbers of the port range you wish to forward.

Click the Enable checkbox to enable forwarding for the chosen application. For this feature, the Gateway will watch outgoing data for specific port numbers.

The Gateway will remember the IP address of the computer that sends a transmission requesting data, so that when the requested data returns through the Gateway, the data is pulled back to the proper computer by way of IP address and port mapping rules.

Enter the name you wish to give each application. Enter the starting and ending port numbers of the Triggered Range.

Enter the starting and ending port numbers of the Forwarded Range. Click the Enable checkbox to enable port triggering for the chosen application.

DMZ hosting forwards all the ports for one computer at the same time, which differs from Port Range Forwarding, which can only forward a maximum of 10 ranges of ports.

This feature allows one local user to be exposed to the Internet for use of a special-purpose service such as Internet gaming and videoconferencing.

To use this feature, select Enable. To disable DMZ, select Disable. To use QoS, select Enable. Otherwise, keep the default, Disable.

Depending on the settings of the QoS screen, this feature will assign information a high or low priority for the five preset applications and three additional applications that you specify.

For example, after developing the HTML pages for a website on a local machine, they are typically uploaded to the web server using FTP.

The communications protocol used to connect to servers on the World Wide Web. Its primary function is to establish a connection with a web server and transmit HTML pages to the client web browser.

It allows a user at a terminal or computer to log onto a remote device and run a program. The standard e-mail protocol on the Internet.

A standard mail server commonly used on the Internet. It provides a message store that holds incoming e-mail until users log on and download it.

POP3 is a simple system with little selectivity. All pending messages and attachments are downloaded at the same time. Specific Port.

You can add three more applications by entering their respective port numbers in these fields. When you have finished making changes to this screen, click the Save Settings button to save the changes, or click the Cancel Changes button to undo your changes.

Gateway Access Local Gateway Access. The default username and password is admin. Select the number of the user from the drop-down menu.

Enter the default username, admin. It is recommended that you change the default username to one of your choice. It is recommended that you change the default password, admin, to one of your choice.

Remote Gateway Access. This feature allows you to access the Gateway from a remote location, via the Internet. This feature allows you to manage the Gateway from a remote location via the Internet.

To enable Remote Management, click Enable. Enter the port number you will use to remotely access the Gateway.

Specify the IP address es allowed to remotely manage the Gateway. To allow all IP addresses with no restrictions, select All. Figure Management Remote Upgrade.

To enable Remote Upgrade, click Enable. Enter the name of the Gateway. Enter the IP address of the remote host computer that will receive the trap messages.

To enable UPnP, click Enable. Otherwise, click Disable. Otherwise, select Disable. It also provides logs for VPN and firewall events. To enable log reporting, click Enabled.

Enter the IP Address of the computer that will receive logs. You will need Logviewer software to view these logs. This free software is available for download from www.

To enable E-Mail Alerts, click Enabled. Enter the number of Denial of Service attacks that will trigger an e-mail alert.

Enter the e-mail address that will receive alert logs. Enter the return address for the e-mail alerts.

To view the logs, click the View Logs button. A new screen will appear. From the drop-down menu, you can select which log you want to view.

Enter the IP address that you want to ping. Enter the size of the packet. Enter the number of times that you want to ping.

Enter the ping interval how often the target IP address will be pinged in milliseconds. Enter the ping timeout how long before the ping test times out in milliseconds.

Click the Start Test button to start the Ping Test. The results of the ping test will be shown here.

Then follow the on-screen instructions. Then follow the on-screen instructions to locate the file. After you have selected the file, click the Restore button.

If you wish to restore the Gateway to its factory default settings and lose all your settings, click Yes.

To begin the restore process, click the Save Settings button to save these changes, or click the Cancel Changes button to undo your changes.

Extract the file on your computer. Click the Browse button to find the firmware upgrade file. Double-click the firmware file that you have downloaded and extracted.

Click the Upgrade button, and follow the on-screen instructions. To cancel the firmware upgrade, click the Cancel Upgrades button.

In most cases you should use the hard reboot. The soft reboot is similar to restarting your computer without physically powering down the computer.

Reboot Reboot Mode. To reboot your Gateway, select Hard or Soft. Choose Hard to power cycle the Gateway or Soft.

Figure Reboot To begin the reboot process, click the Save Settings button. When a screen appears asking you if you really want to reboot the Gateway, click OK.

Click the Cancel Changes button if you want to cancel the reboot. DHCP Renew. Click the Refresh button if you want to refresh the displayed information.

This data is stored in temporary memory and changes periodically. Click the Close button to return to the Local Network screen. Figure Local Network Click the Refresh button if you want to refresh the displayed information.

Click the Wireless Clients Connected button to view a list of the wireless clients connected to the Gateway, along with their computer names, IP addresses, and MAC addresses.

Click the Close button to return to the Wireless screen. Read the descriptions below to help you solve your problems.

Common Problems and Solutions 1. I need to set a static IP address on a computer. Click Start, Settings, and Control Panel. Double-click Network.

Highlight it and click the Properties button. Enter a unique IP address that is not used by any other computer on the network connected to the Gateway.

Make sure that each IP address is unique for each computer or network device. Click the Gateway tab, and in the New Gateway prompt, enter Click the Add button to accept the entry.

Enter the Host and Domain names e. Restart the computer when asked. Double-click Network and Dial-Up Connections.

Right-click the Local Area Connection that is associated with the Ethernet adapter you are using, and select the Properties option. Select Use the following IP address option.

Enter the Subnet Mask, Enter the Default Gateway, Contact your ISP or go on its website to find the information. Restart the computer if asked.

If you are using the Classic interface where the icons and menus look like previous Windows versions , please follow the instructions for Windows Click Start and Control Panel.

Click the Properties button. I want to test my Internet connection. Make sure Obtain IP address automatically is selected in the settings.

For Windows NT 4. Double-click the Network icon. Open a command prompt. In the Open field, type in command.

Press the Enter key or click the OK button. In the Open field, type cmd. In the command prompt, type ping In the command prompt, type ping www.

If you cannot open a webpage, try the ping command from a different computer to verify that your original computer is not the cause of the problem.

Try the ping command from a different computer to verify that your original computer is not the cause of the problem. I am not getting an IP address on the Internet with my Internet connection.

Make sure you are using the right Internet connection settings. Make sure you have the right cable. Turn off the computer and Gateway. Wait 30 seconds, and then turn on the Gateway, and computer.

AH has limitations due to occasional incompatibility with the NAT standard. Y Y being any number from 1 to Note that each IP address must be unique within the network.

I need to set up a server behind my Gateway and make it available to the public. To use a server like a web, ftp, or mail server, you need to know the respective port numbers they are using.

You can get more information by viewing the documentation provided with the server you installed. We will be setting up web, ftp, and mail servers.

Enter any name you want to use for the Customized Application. Enter the External Port range of the service you are using.

For example, if you have a web server, you would enter the range 80 to Enter the IP address of the computer or network device that you want the port server to go to.

Check the Enable option for the port services you want to use. I need to set up online game hosting or use other Internet applications.

If you want to play online games or use Internet applications, most will work without doing any port forwarding or DMZ hosting.

There may be cases when you want to host an online game or Internet application. This would require you to set up the Gateway to deliver incoming packets or data to a specific computer.

This also applies to the Internet applications you are using. The best way to get the information on what port services to use is to go to the website of the online game or application you want to use.

Follow these steps to set up online game hosting or use a certain Internet application: 1. For example, if you want to host Unreal Tournament UT , you would enter the range to If you are having difficulties getting any Internet game, server, or application to function properly, consider exposing one computer to the Internet using DeMilitarized Zone DMZ hosting.

This option is available when an application requires too many ports or when you are not sure which port services to use.

Make sure you disable all the forwarding entries if you want to successfully use DMZ hosting, since forwarding has priority over DMZ hosting.

In other words, data that enters the Gateway will be checked first by the forwarding settings. If the port number that the data enters from does not have port forwarding, then the Gateway will send the data to whichever computer or network device you set for DMZ hosting.

Click Enabled and enter the IP of the computer. Check the Port Forwarding pages and disable or remove the entries you have entered for forwarding.

Keep this information in case you want to use it at a later time. I forgot my password, or the password prompt always appears when I am saving settings to the Gateway.

If you are still getting prompted for a password when saving settings, then perform the following steps: 1. Enter a different password in the Gateway Password field, and enter the same password in the second field to confirm the password.

Click the Save Settings button. If you have proxy settings, you need to disable these on your computer. Because the Gateway is the gateway for the Internet connection, the computer does not need any proxy settings to gain access.

Please follow these directions to verify that you do not have any proxy settings and that the browser you use is set to connect directly to the LAN.

Double-click Internet Options. Click the Connections tab. Click the LAN settings button and remove anything that is checked.

Click the OK button to go back to the previous screen. Click the option Never dial a connection. This will remove any dial-up pop-ups for PPPoE users.

Make sure you have Direct connection to the Internet selected on this screen. Close all the windows to finish. To start over, I need to set the Gateway to factory default.

Hold the Reset button for 10 seconds and then release it. This will return the Internet settings, password, forwarding, and other settings on the Gateway to the factory default settings.

In other words, the Gateway will revert to its original factory configuration. I need to upgrade the firmware.

In order to upgrade the firmware with the latest features, you need to go to the Linksys international website and download the latest firmware at www.

Click the Products tab and select the Gateway. The upgrade could have failed for a number of reasons.

PPPoE is not actually a dedicated or always-on connection. This may not always work, so you may need to reestablish connection periodically.

Enter the username and password, if asked. Click the Status tab, and click the Connect button. You may see the login status display as Connecting.

Press the F5 key to refresh the screen, until you see the login status display as Connected. Click the Save Settings button to continue.

By default, the MTU is set automatically. Look for the MTU option, and select Manual. In the Size field, enter Try this list of values, one value at a time, in this order, until your problem is solved: The Power LED flashes continuously.

The Power LED lights up when the device is first powered up. In the meantime, the system will boot up itself and check for proper operation.

After finishing the checking procedure, the LED remains steady to show that the system is working fine. If the LED continues to flash after this time, the device is not working properly.

Try to flash the firmware by assigning a static IP address to the computer, and then upgrade the firmware.

Try using the following settings, IP Address: Restart the computer that is having a problem.

Ensure that it is connected and powered on. Connect to it and check its settings. If you cannot connect to it, check the LAN and power connections.

You can remove the Gateway to verify a direct connection. Make sure that Internet Explorer is set to Never dial a connection.

Make sure that Netscape Navigator is set to Direct connection to the Internet. Click File. This is a hard refresh, which will force Windows Explorer to load new webpages, not cached ones.

Click Internet Options. Click the Security tab. Click the Default level button. Make sure the security level is Medium or lower.

The Gateway will support up to IP addresses. Yes, it is a built-in feature that is enabled by default. Where is the Gateway installed on the network?

This adds a level of security since the address of a computer connected to the private LAN is never transmitted on the Internet.

The user may have many private addresses behind this single address provided by the ISP. Yes, but Linksys does not, at this time, provide technical support for setup, configuration or troubleshooting of any non-Windows operating systems.

Does the Gateway support ICQ send file? Then set the firewall time-out to 80 seconds in the firewall setting.

The Internet user can then send a file to a user behind the Gateway. What do I need to do? If you have a dedicated Unreal Tournament server running, you need to create a static IP for each of the LAN computers and forward ports , , , , , and to the IP address of the server.

If you want to use the UT Server Admin, forward another port. Port usually works well but is used for remote admin. You may have to disable this.

Then in the [UWeb. WebServer] section of the server. Can multiple gamers on the LAN get on one game server and play simultaneously with just one public IP address?

It depends on which network game or what kind of game server you are using. For example, Unreal Tournament supports multi-login with one public IP.

The default client port for Half-Life is This lets multiple computers connect to the same server. One problem: Version 1. Just forward port to the local IP address of the server computer.

Make sure that your proxy setting is disabled in the browser. Check our website at www. If all else fails in the installation, what can I do?

Reset your DSL modem by powering the unit off and then on. Obtain and flash the latest firmware release that is readily available on the Linksys international website, www.

How will I be notified of new Gateway firmware upgrades? All Linksys firmware upgrades are posted on the Linksys international website at www.

Will the Gateway function in a Macintosh environment? I am not able to get the web configuration screen for the Gateway.

What can I do? You may have to remove the proxy settings on your Internet browser, e. Check with your browser documentation, and make sure that your browser is set to connect directly and that any dial-up is disabled.

What is DMZ Hosting? How many ports can be simultaneously forwarded? Theoretically, the Gateway can establish sessions at the same time, but you can only forward 10 ranges of ports.

What are the advanced features of the Gateway? What is the maximum number of VPN sessions allowed by the Gateway?

The maximum number depends on many factors. Consult your ISP to obtain this information. Under the Port Forwarding tab, set port forwarding to for the computer on which you are using mIRC.

Can I run an application from a remote computer over the wireless network? This will depend on whether or not the application is designed to be used over a network.

What is the IEEE It is one of the IEEE standards for wireless networks. The The product supports the following IEEE What is ad-hoc mode?

When a wireless network is set to ad-hoc mode, the wireless-equipped computers are configured to communicate directly with each other, peer-to-peer without the use of an access point.

What is infrastructure mode? When a wireless network is set to infrastructure mode, the wireless network is configured to communicate with a network through a wireless access point.

What is roaming? Roaming is the ability of a portable computer user to communicate continuously while moving freely throughout an area greater than that covered by a single access point.

Before using the roaming function, the computer must make sure that it is the same channel number with the access point of dedicated coverage area.

To achieve true seamless connectivity, the wireless LAN must incorporate a number of different functions. Each node and access point, for example, must always acknowledge receipt of each message.

Each node must maintain contact with the wireless network even when not actually transmitting data. Achieving these functions simultaneously requires a dynamic RF networking technology that links access points and nodes.

First, it evaluates such factors as signal strength and quality, as well as the message load currently being carried by each access point and the distance of each access point to the wired backbone.

Based on that information, the node next selects the right access point and registers its address. Communications between end node and host computer can then be transmitted up and down the backbone.

When a node no longer receives acknowledgment from its original access point, it undertakes a new search. Upon finding a new access point, it then re-registers, and the communication process continues.

The FCC and their counterparts outside of the U. Spectrum in the vicinity of 2. This presents a truly revolutionary opportunity to place convenient high-speed wireless capabilities in the hands of users around the globe.

What is Spread Spectrum? Spread Spectrum technology is a wideband radio frequency technique developed by the military for use in reliable, secure, mission-critical communications systems.

It is designed to trade off bandwidth efficiency for reliability, integrity, and security. In other words, more bandwidth is consumed than in the case of narrowband transmission, but the trade-off produces a signal that is, in effect, louder and thus easier to detect, provided that the receiver knows the parameters of the spread-spectrum signal being broadcast.

If a receiver is not tuned to the right frequency, a spread-spectrum signal looks like background noise. What is DSSS? What is FHSS? And what are their differences?

Frequency-Hopping Spread-Spectrum FHSS uses a narrowband carrier that changes frequency in a pattern that is known to both transmitter and receiver.

Properly synchronized, the net effect is to maintain a single logical channel. To an unintended receiver, FHSS appears to be short-duration impulse noise.

This bit pattern is called a chip or chipping code. The longer the chip, the greater the probability that the original data can be recovered.

Even if one or more bits in the chip are damaged during transmission, statistical techniques embedded in the radio can recover the original data without the need for retransmission.

To an unintended receiver, DSSS appears as low power wideband noise and is rejected ignored by most narrowband receivers.

Will the information be intercepted while it is being transmitted through the air? WLAN features two-fold protection in security.

On the hardware side, as with Direct Sequence Spread Spectrum technology, it has the inherent security feature of scrambling. What is WEP?

What is a MAC Address? The Media Access Control MAC address is a unique number assigned by the manufacturer to any Ethernet networking device, such as a network adapter, that allows the network to identify it at the hardware level.

For all practical purposes, this number is usually permanent. Unlike IP addresses, which can change every time a computer logs onto the network, the MAC address of a device stays the same, making it a valuable identifier for the network.

Press the Reset button on the back panel for about ten seconds. This will reset the Gateway to its default settings. How do I resolve issues with signal loss?

There is no way to know the exact range of your wireless network without testing. Every obstacle placed between the Gateway and a wireless computer will create signal loss.

Lead glass, metal, concrete floors, water and walls will inhibit the signal and reduce range. Start with the Gateway and your wireless computer in the same room and move it away in small increments to determine the maximum range in your environment.

You may also try using different channels, as this may eliminate interference affecting only one channel. I have excellent signal strength, but I cannot see my network.

WEP is probably enabled on the Gateway, but not on your wireless adapter or vice versa. Verify that the same WEP keys and levels 64 or are being used on all nodes of your wireless network.

There are eleven available channels, ranging from 1 to 11, in North America. If your questions are not addressed here, refer to the Linksys international website, www.

The current generation of Linksys products provide several network security features, but they require specific action on your part for implementation.

So, keep the following in mind whenever you are setting up or using your wireless network. Security Precautions The following is a complete list of security precautions to take at least steps 1 through 5 should be followed : 1.

Change the default SSID. Change the default password for the Administrator account. Change the SSID periodically. Use the highest encryption algorithm possible.

Use WPA if it is available. Please note that this may reduce your network performance. NOTE: Some of these security features are available only through the network gateway, router, or access point.

Change the WEP encryption keys periodically. Your network administrator is the only person who can change network settings.

So, make it harder for a hacker to get that information. There are several things to keep in mind about the SSID: 1.

Disable Broadcast 2. Make it unique 3. While this option may be more convenient, it allows anyone to log into your wireless network.

This includes hackers. Wireless networking products come with a default SSID set by the factory.

Hackers know these defaults and can check these against your network. Change your SSID to something unique and not something related to your company or the networking products you use.

Change your SSID regularly so that any hackers who have gained access to your wireless network will have to start from the beginning in trying to break in.

MAC Addresses. Enable MAC Address filtering. This makes it harder for a hacker to access your network with a random MAC Address. WEP Encryption.

There are several ways that WEP can be maximized: 1. Use the highest level of encryption possible 2. Last, enter a Group Key Renewal period, which instructs the device how often it should change the encryption keys.

These security recommendations should help keep your mind at ease while you are enjoying the most flexible and convenient technology Linksys has to offer.

Windows 98 or Me Instructions 1. Click Start and Run. In the Open field, enter winipcfg. Then press the Enter key or the OK button.

See Figure C Write down the Adapter Address as shown on your computer screen see Figure C This is the MAC address for your Ethernet adapter and is shown in hexadecimal as a series of numbers and letters.

Your computer will show something different. Your computer may show something different. In the Open field, enter cmd.

Then press the Enter key. This appears as a series of numbers and letters. Click the Firmware Upgrade tab. Click the Browse button to find the extracted file, and then double-click it.

Access Point - A device that allows wireless-equipped computers and other devices to communicate with a wired network. Also used to expand the range of a wireless network.

Adapter - A device that adds network functionality to your PC. Ad-hoc - A group of wireless devices communicating directly with each other peer-to-peer without the use of an access point.

Backbone - The part of a network that connects most of the systems and networks together, and handles the most data.

Bandwidth - The transmission capacity of a given device or network. Beacon Interval - Data transmitted on your wireless network that keeps the network synchronized.

Bit - A binary digit. Boot - To start a device and cause it to start executing instructions. Bridge - A device that connects different networks.

Broadband - An always-on, fast Internet connection. Browser - An application program that provides a way to look at and interact with all the information on the World Wide Web.

Buffer - A shared or assigned memory area that is used to support and coordinate different computing and networking activities so one isn't held up by the other.

Daisy Chain - A method used to connect devices in a series, one after the other. Database - A collection of data that is organized so that its contents can easily be accessed, managed, and updated.

Default Gateway - A device that forwards Internet traffic from your local area network. Domain - A specific name for a network of computers.

Download - To receive a file transmitted over a network. DSSS Direct-Sequence Spread-Spectrum - Frequency transmission with a redundant bit pattern resulting in a lower probability of information being lost in transit.

Many specific authentication methods work within this framework. Encryption - Encoding data transmitted in a network. Ethernet - A networking protocol that specifies how data is placed on and retrieved from a common transmission medium.

Finger - A program that tells you the name associated with an e-mail address. Firewall - A set of related programs located at a network gateway server that protects the resources of a network from users from other networks.

Firmware - The programming code that runs a networking device. Fragmentation -Breaking a packet into smaller units when transmitting over a network medium that cannot support the original size of the packet.

Full Duplex - The ability of a networking device to receive and transmit data simultaneously. Gateway - A device that interconnects networks with different, incompatible communications protocols.

Half Duplex - Data transmission that can occur in two directions over a single line, but only one direction at a time.

Hardware - The physical aspect of computers, telecommunications, and other information technology devices. Infrastructure - A wireless network that is bridged to a wired network via an access point.

IP Internet Protocol - A protocol used to send data over a network. IP Address - The address used to identify a computer or device on a network.

ISM band - Radio bandwidth utilized in wireless transmissions. LAN - The computers and networking products that make up your local network.

Multicasting - Sending data to a group of destinations at once. Node - A network junction or connection point, typically a computer or work station.

OFDM Orthogonal Frequency Division Multiplexing - Frequency transmission that separates the data stream into a number of lower-speed data streams, which are then transmitted in parallel to prevent information from being lost in transit.

Packet - A unit of data sent over a network. Passphrase - Used much like a password, a passphrase simplifies the WEP encryption process by automatically generating the WEP encryption keys for Linksys products.

PEAP Protected Extensible Authentication Protocol - A mutual authentication method that uses a combination of digital certificates and another system, such as passwords.

Port - The connection point on a computer or networking device used for plugging in cables or adapters. Power over Ethernet PoE - A technology enabling an Ethernet network cable to deliver both data and power.

PPPoE Point to Point Protocol over Ethernet - A type of broadband connection that provides authentication username and password in addition to data transport.

This protocol is also used as a type of broadband connection in Europe. Preamble - Part of the wireless signal that synchronizes network traffic.

Roaming - The ability to take a wireless device from one access point's range to another without losing the connection.

Router - A networking device that connects multiple networks together. Server - Any computer whose function in a network is to provide user access to files, printing, communications, and other services.

Software - Instructions for the computer. SPI Stateful Packet Inspection Firewall - A technology that inspects incoming packets of information before allowing them to enter the network.

Static IP Address - A fixed address assigned to a computer or device that is connected to a network.

Static Routing - Forwarding data in a network via a fixed path. Subnet Mask - An address code that determines the size of the network.

Switch - 1. A data switch that connects computing devices to host computers, allowing a large number of devices to share a limited number of ports.

A device for making, breaking, or changing the connections in an electrical circuit. TCP Transmission Control Protocol - A network protocol for transmitting data that requires acknowledgement from the recipient of data sent.

Throughput - The amount of data moved successfully from one node to another in a given time period. TKIP Temporal Key Integrity Protocol - a wireless encryption protocol that provides dynamic encryption keys for each packet transmitted.

Topology - The physical layout of a network. TX Rate - Transmission Rate. UDP User Datagram Protocol - A network protocol for transmitting data that does not require acknowledgement from the recipient of the data that is sent.

Upgrade - To replace existing software or firmware with a newer version. Upload - To transmit a file over a network. WEP Wired Equivalent Privacy - A method of encrypting network data transmitted on a wireless network for greater security.

Visit www. Then select your product. Draadloze verbindingen voor buitengebruik en met een reikwijdte van meer dan meter dienen aangemeld te worden bij het Belgisch Instituut voor postdiensten en telecommunicatie BIPT.

Product Usage Restrictions This product is designed for indoor usage only. Outdoor usage is not recommended.

Any modification or alteration to the product shall void the warranty see the Warranty Information appendix in this User Guide.

However, some applications may require the antenna s to be separated from the product and installed remotely from the device by using extension cables.

Both of these cables are 9 meters long and have a cable loss attenuation of 5 dB. Combinations of extension cables and antennas resulting in a radiated power level exceeding mW EIRP are illegal.

Proceed to the appropriate section for your device. Note: The power output setting may not be available on all wireless products.

Maximum power output on each adapter does not exceed 20 dBm mW ; it is generally 18 dBm 64 mW or below. Open the Wireless Network Connection window.

Select the General tab, and click the Configure button. In the Properties window, click the Advanced tab. Select Power Output.

Windows 1. Open the Control Panel. Select your current wireless connection, and select Properties.

From the Properties screen, click the Configure button. Click the Advanced tab, and select Power Output. If your computer is running Windows Millennium or 98, then refer to Windows Help for instructions on how to access the advanced settings of a network adapter.

Click the region in which you reside. Click the name of the country in which you reside. Click Products. Click the appropriate product category.

Select a product. Click the type of documentation you want. The document will automatically open in PDF format. Your exclusive remedy and Linksys' entire liability under this warranty will be for Linksys at its option to repair or replace the Product or refund Your purchase price less any rebates.

Access can be managed by a policy. Use the settings on this screen to establish an access policy after the Save Settings button is clicked.

To view all the policies, click the Summary button. Policies can be deleted from the Summary screen by selecting the policy or policies and clicking the Delete button.

To return to the Internet Access screen, click the Close button. Policies are disabled by default. To enable a policy, select the policy number from the drop-down menu, and click the radio button beside Enable.

To create an Internet Access policy: 1. Select a number from the Internet Access Policy drop-down menu. To enable this policy, click the radio button beside Enable.

Enter a Policy Name in the field provided. The List of PCs screen will appear. After making your changes, click the Save Settings button to apply your changes or Cancel Changes to cancel your changes.

Click the appropriate option, Deny or Allow, depending on whether you want to block or allow Internet access for the PCs you listed on the List of PCs screen.

Decide which days and what times you want this policy to be enforced. Select the individual days during which the policy will be in effect, or select Everyday.

Then enter a range of hours and minutes during which the policy will be in effect, or select 24 Hours. If you want to block websites using specific keywords, enter each keyword in a separate field next to Website Blocking by Keyword.

Figure List of PCs 9. You can filter access to various services accessed over the Internet, such as FTP or telnet, by selecting services from the drop-down menus next to Blocked Services.

Then enter the range of ports you want to filter. Then the Port Services screen will appear. Select its protocol from the Protocol drop-down menu, and enter its range in the Port Range fields.

Then click the Add button. To modify a service, select it from the list on the right. Change its name, protocol setting, or port range.

Then click the Modify button. To delete a service, select it from the list on the right. Then click the Delete button. When you are finished making changes on the Port Services screen, click the Apply button to save changes.

If you want to cancel your changes, click the Cancel button. To close the Port Services screen and return to the Access Restrictions screen, click the Close button.

When users send this type of request to your network via the Internet, the Gateway will forward those requests to the appropriate computer.

In this section you will customize the port service for your applications. Enter the name of the application in the field provided.

Enter the External and Internal Port numbers. Enter the IP Address of the appropriate computer.

Click Enabled to enable forwarding for the chosen application. Specialized Internet applications are any applications that use Internet access to perform functions such as videoconferencing or online gaming.

Some Internet applications may not require any forwarding. Enter the starting and ending numbers of the port range you wish to forward. Click the Enable checkbox to enable forwarding for the chosen application.

For this feature, the Gateway will watch outgoing data for specific port numbers. The Gateway will remember the IP address of the computer that sends a transmission requesting data, so that when the requested data returns through the Gateway, the data is pulled back to the proper computer by way of IP address and port mapping rules.

Enter the name you wish to give each application. Enter the starting and ending port numbers of the Triggered Range.

Enter the starting and ending port numbers of the Forwarded Range. Click the Enable checkbox to enable port triggering for the chosen application.

DMZ hosting forwards all the ports for one computer at the same time, which differs from Port Range Forwarding, which can only forward a maximum of 10 ranges of ports.

This feature allows one local user to be exposed to the Internet for use of a special-purpose service such as Internet gaming and videoconferencing.

To use this feature, select Enable. To disable DMZ, select Disable. To use QoS, select Enable. Otherwise, keep the default, Disable.

Depending on the settings of the QoS screen, this feature will assign information a high or low priority for the five preset applications and three additional applications that you specify.

For example, after developing the HTML pages for a website on a local machine, they are typically uploaded to the web server using FTP.

The communications protocol used to connect to servers on the World Wide Web. Its primary function is to establish a connection with a web server and transmit HTML pages to the client web browser.

It allows a user at a terminal or computer to log onto a remote device and run a program. The standard e-mail protocol on the Internet.

A standard mail server commonly used on the Internet. It provides a message store that holds incoming e-mail until users log on and download it.

POP3 is a simple system with little selectivity. All pending messages and attachments are downloaded at the same time.

Specific Port. You can add three more applications by entering their respective port numbers in these fields. When you have finished making changes to this screen, click the Save Settings button to save the changes, or click the Cancel Changes button to undo your changes.

Gateway Access Local Gateway Access. The default username and password is admin. Select the number of the user from the drop-down menu.

Enter the default username, admin. It is recommended that you change the default username to one of your choice. It is recommended that you change the default password, admin, to one of your choice.

Remote Gateway Access. This feature allows you to access the Gateway from a remote location, via the Internet.

This feature allows you to manage the Gateway from a remote location via the Internet. To enable Remote Management, click Enable.

Enter the port number you will use to remotely access the Gateway. Specify the IP address es allowed to remotely manage the Gateway.

To allow all IP addresses with no restrictions, select All. Figure Management Remote Upgrade. To enable Remote Upgrade, click Enable.

Enter the name of the Gateway. Enter the IP address of the remote host computer that will receive the trap messages. To enable UPnP, click Enable.

Otherwise, click Disable. Otherwise, select Disable. It also provides logs for VPN and firewall events. To enable log reporting, click Enabled.

Enter the IP Address of the computer that will receive logs. You will need Logviewer software to view these logs. This free software is available for download from www.

To enable E-Mail Alerts, click Enabled. Enter the number of Denial of Service attacks that will trigger an e-mail alert.

Enter the e-mail address that will receive alert logs. Enter the return address for the e-mail alerts.

To view the logs, click the View Logs button. A new screen will appear. From the drop-down menu, you can select which log you want to view.

Enter the IP address that you want to ping. Enter the size of the packet. Enter the number of times that you want to ping. Enter the ping interval how often the target IP address will be pinged in milliseconds.

Enter the ping timeout how long before the ping test times out in milliseconds. Click the Start Test button to start the Ping Test. The results of the ping test will be shown here.

Then follow the on-screen instructions. Then follow the on-screen instructions to locate the file. After you have selected the file, click the Restore button.

If you wish to restore the Gateway to its factory default settings and lose all your settings, click Yes. To begin the restore process, click the Save Settings button to save these changes, or click the Cancel Changes button to undo your changes.

Extract the file on your computer. Click the Browse button to find the firmware upgrade file. Double-click the firmware file that you have downloaded and extracted.

Click the Upgrade button, and follow the on-screen instructions. To cancel the firmware upgrade, click the Cancel Upgrades button. In most cases you should use the hard reboot.

The soft reboot is similar to restarting your computer without physically powering down the computer. Reboot Reboot Mode.

To reboot your Gateway, select Hard or Soft. Choose Hard to power cycle the Gateway or Soft. Figure Reboot To begin the reboot process, click the Save Settings button.

When a screen appears asking you if you really want to reboot the Gateway, click OK. Click the Cancel Changes button if you want to cancel the reboot.

DHCP Renew. Click the Refresh button if you want to refresh the displayed information. This data is stored in temporary memory and changes periodically.

Click the Close button to return to the Local Network screen. Figure Local Network Click the Refresh button if you want to refresh the displayed information.

Click the Wireless Clients Connected button to view a list of the wireless clients connected to the Gateway, along with their computer names, IP addresses, and MAC addresses.

Click the Close button to return to the Wireless screen. Read the descriptions below to help you solve your problems.

Common Problems and Solutions 1. I need to set a static IP address on a computer. Click Start, Settings, and Control Panel.

Double-click Network. Highlight it and click the Properties button. Enter a unique IP address that is not used by any other computer on the network connected to the Gateway.

Make sure that each IP address is unique for each computer or network device. Click the Gateway tab, and in the New Gateway prompt, enter Click the Add button to accept the entry.

Enter the Host and Domain names e. Restart the computer when asked. Double-click Network and Dial-Up Connections.

Right-click the Local Area Connection that is associated with the Ethernet adapter you are using, and select the Properties option.

Select Use the following IP address option. Enter the Subnet Mask, Enter the Default Gateway, Contact your ISP or go on its website to find the information.

Restart the computer if asked. If you are using the Classic interface where the icons and menus look like previous Windows versions , please follow the instructions for Windows Click Start and Control Panel.

Click the Properties button. I want to test my Internet connection. Make sure Obtain IP address automatically is selected in the settings.

For Windows NT 4. Double-click the Network icon. Open a command prompt. In the Open field, type in command.

Press the Enter key or click the OK button. In the Open field, type cmd. In the command prompt, type ping In the command prompt, type ping www.

If you cannot open a webpage, try the ping command from a different computer to verify that your original computer is not the cause of the problem.

Try the ping command from a different computer to verify that your original computer is not the cause of the problem.

I am not getting an IP address on the Internet with my Internet connection. Make sure you are using the right Internet connection settings.

Make sure you have the right cable. Turn off the computer and Gateway. Wait 30 seconds, and then turn on the Gateway, and computer.

AH has limitations due to occasional incompatibility with the NAT standard. Y Y being any number from 1 to Note that each IP address must be unique within the network.

I need to set up a server behind my Gateway and make it available to the public. To use a server like a web, ftp, or mail server, you need to know the respective port numbers they are using.

You can get more information by viewing the documentation provided with the server you installed.

We will be setting up web, ftp, and mail servers. Enter any name you want to use for the Customized Application.

Enter the External Port range of the service you are using. For example, if you have a web server, you would enter the range 80 to Enter the IP address of the computer or network device that you want the port server to go to.

Check the Enable option for the port services you want to use. I need to set up online game hosting or use other Internet applications.

If you want to play online games or use Internet applications, most will work without doing any port forwarding or DMZ hosting.

There may be cases when you want to host an online game or Internet application. This would require you to set up the Gateway to deliver incoming packets or data to a specific computer.

This also applies to the Internet applications you are using. The best way to get the information on what port services to use is to go to the website of the online game or application you want to use.

Follow these steps to set up online game hosting or use a certain Internet application: 1. For example, if you want to host Unreal Tournament UT , you would enter the range to If you are having difficulties getting any Internet game, server, or application to function properly, consider exposing one computer to the Internet using DeMilitarized Zone DMZ hosting.

This option is available when an application requires too many ports or when you are not sure which port services to use.

Make sure you disable all the forwarding entries if you want to successfully use DMZ hosting, since forwarding has priority over DMZ hosting.

In other words, data that enters the Gateway will be checked first by the forwarding settings. If the port number that the data enters from does not have port forwarding, then the Gateway will send the data to whichever computer or network device you set for DMZ hosting.

Click Enabled and enter the IP of the computer. Check the Port Forwarding pages and disable or remove the entries you have entered for forwarding.

Keep this information in case you want to use it at a later time. I forgot my password, or the password prompt always appears when I am saving settings to the Gateway.

If you are still getting prompted for a password when saving settings, then perform the following steps: 1. Enter a different password in the Gateway Password field, and enter the same password in the second field to confirm the password.

Click the Save Settings button. If you have proxy settings, you need to disable these on your computer. Because the Gateway is the gateway for the Internet connection, the computer does not need any proxy settings to gain access.

Please follow these directions to verify that you do not have any proxy settings and that the browser you use is set to connect directly to the LAN.

Double-click Internet Options. Click the Connections tab. Click the LAN settings button and remove anything that is checked.

Click the OK button to go back to the previous screen. Click the option Never dial a connection. This will remove any dial-up pop-ups for PPPoE users.

Make sure you have Direct connection to the Internet selected on this screen. Close all the windows to finish. To start over, I need to set the Gateway to factory default.

Hold the Reset button for 10 seconds and then release it. This will return the Internet settings, password, forwarding, and other settings on the Gateway to the factory default settings.

In other words, the Gateway will revert to its original factory configuration. I need to upgrade the firmware. In order to upgrade the firmware with the latest features, you need to go to the Linksys international website and download the latest firmware at www.

Click the Products tab and select the Gateway. The upgrade could have failed for a number of reasons. PPPoE is not actually a dedicated or always-on connection.

This may not always work, so you may need to reestablish connection periodically. Enter the username and password, if asked. Click the Status tab, and click the Connect button.

You may see the login status display as Connecting. Press the F5 key to refresh the screen, until you see the login status display as Connected.

Click the Save Settings button to continue. By default, the MTU is set automatically. Look for the MTU option, and select Manual.

In the Size field, enter Try this list of values, one value at a time, in this order, until your problem is solved: The Power LED flashes continuously.

The Power LED lights up when the device is first powered up. In the meantime, the system will boot up itself and check for proper operation.

After finishing the checking procedure, the LED remains steady to show that the system is working fine.

If the LED continues to flash after this time, the device is not working properly. Try to flash the firmware by assigning a static IP address to the computer, and then upgrade the firmware.

Try using the following settings, IP Address: Restart the computer that is having a problem. Ensure that it is connected and powered on.

Connect to it and check its settings. If you cannot connect to it, check the LAN and power connections.

You can remove the Gateway to verify a direct connection. Make sure that Internet Explorer is set to Never dial a connection.

Make sure that Netscape Navigator is set to Direct connection to the Internet. Click File. This is a hard refresh, which will force Windows Explorer to load new webpages, not cached ones.

Click Internet Options. Click the Security tab. Click the Default level button. Make sure the security level is Medium or lower.

The Gateway will support up to IP addresses. Yes, it is a built-in feature that is enabled by default.

Where is the Gateway installed on the network? This adds a level of security since the address of a computer connected to the private LAN is never transmitted on the Internet.

The user may have many private addresses behind this single address provided by the ISP. Yes, but Linksys does not, at this time, provide technical support for setup, configuration or troubleshooting of any non-Windows operating systems.

Does the Gateway support ICQ send file? Then set the firewall time-out to 80 seconds in the firewall setting.

The Internet user can then send a file to a user behind the Gateway. What do I need to do? If you have a dedicated Unreal Tournament server running, you need to create a static IP for each of the LAN computers and forward ports , , , , , and to the IP address of the server.

If you want to use the UT Server Admin, forward another port. Port usually works well but is used for remote admin.

You may have to disable this. Then in the [UWeb. WebServer] section of the server. Can multiple gamers on the LAN get on one game server and play simultaneously with just one public IP address?

It depends on which network game or what kind of game server you are using. For example, Unreal Tournament supports multi-login with one public IP.

The default client port for Half-Life is This lets multiple computers connect to the same server. One problem: Version 1. Just forward port to the local IP address of the server computer.

Make sure that your proxy setting is disabled in the browser. Check our website at www. If all else fails in the installation, what can I do?

Reset your DSL modem by powering the unit off and then on. Obtain and flash the latest firmware release that is readily available on the Linksys international website, www.

How will I be notified of new Gateway firmware upgrades? All Linksys firmware upgrades are posted on the Linksys international website at www.

Will the Gateway function in a Macintosh environment? I am not able to get the web configuration screen for the Gateway. What can I do?

You may have to remove the proxy settings on your Internet browser, e. Check with your browser documentation, and make sure that your browser is set to connect directly and that any dial-up is disabled.

What is DMZ Hosting? How many ports can be simultaneously forwarded? Theoretically, the Gateway can establish sessions at the same time, but you can only forward 10 ranges of ports.

What are the advanced features of the Gateway? What is the maximum number of VPN sessions allowed by the Gateway? The maximum number depends on many factors.

Consult your ISP to obtain this information. Under the Port Forwarding tab, set port forwarding to for the computer on which you are using mIRC.

Can I run an application from a remote computer over the wireless network? This will depend on whether or not the application is designed to be used over a network.

What is the IEEE It is one of the IEEE standards for wireless networks. The The product supports the following IEEE What is ad-hoc mode?

When a wireless network is set to ad-hoc mode, the wireless-equipped computers are configured to communicate directly with each other, peer-to-peer without the use of an access point.

What is infrastructure mode? When a wireless network is set to infrastructure mode, the wireless network is configured to communicate with a network through a wireless access point.

What is roaming? Roaming is the ability of a portable computer user to communicate continuously while moving freely throughout an area greater than that covered by a single access point.

Before using the roaming function, the computer must make sure that it is the same channel number with the access point of dedicated coverage area.

To achieve true seamless connectivity, the wireless LAN must incorporate a number of different functions. Each node and access point, for example, must always acknowledge receipt of each message.

Each node must maintain contact with the wireless network even when not actually transmitting data. Achieving these functions simultaneously requires a dynamic RF networking technology that links access points and nodes.

First, it evaluates such factors as signal strength and quality, as well as the message load currently being carried by each access point and the distance of each access point to the wired backbone.

Based on that information, the node next selects the right access point and registers its address. Communications between end node and host computer can then be transmitted up and down the backbone.

When a node no longer receives acknowledgment from its original access point, it undertakes a new search. Upon finding a new access point, it then re-registers, and the communication process continues.

The FCC and their counterparts outside of the U. Spectrum in the vicinity of 2. This presents a truly revolutionary opportunity to place convenient high-speed wireless capabilities in the hands of users around the globe.

What is Spread Spectrum? Spread Spectrum technology is a wideband radio frequency technique developed by the military for use in reliable, secure, mission-critical communications systems.

It is designed to trade off bandwidth efficiency for reliability, integrity, and security. In other words, more bandwidth is consumed than in the case of narrowband transmission, but the trade-off produces a signal that is, in effect, louder and thus easier to detect, provided that the receiver knows the parameters of the spread-spectrum signal being broadcast.

If a receiver is not tuned to the right frequency, a spread-spectrum signal looks like background noise. What is DSSS?

What is FHSS? And what are their differences? Frequency-Hopping Spread-Spectrum FHSS uses a narrowband carrier that changes frequency in a pattern that is known to both transmitter and receiver.

Properly synchronized, the net effect is to maintain a single logical channel. To an unintended receiver, FHSS appears to be short-duration impulse noise.

This bit pattern is called a chip or chipping code. The longer the chip, the greater the probability that the original data can be recovered.

Even if one or more bits in the chip are damaged during transmission, statistical techniques embedded in the radio can recover the original data without the need for retransmission.

To an unintended receiver, DSSS appears as low power wideband noise and is rejected ignored by most narrowband receivers. Will the information be intercepted while it is being transmitted through the air?

WLAN features two-fold protection in security. On the hardware side, as with Direct Sequence Spread Spectrum technology, it has the inherent security feature of scrambling.

What is WEP? What is a MAC Address? The Media Access Control MAC address is a unique number assigned by the manufacturer to any Ethernet networking device, such as a network adapter, that allows the network to identify it at the hardware level.

For all practical purposes, this number is usually permanent. Unlike IP addresses, which can change every time a computer logs onto the network, the MAC address of a device stays the same, making it a valuable identifier for the network.

Press the Reset button on the back panel for about ten seconds. This will reset the Gateway to its default settings.

How do I resolve issues with signal loss? There is no way to know the exact range of your wireless network without testing.

Every obstacle placed between the Gateway and a wireless computer will create signal loss.

Lead glass, metal, concrete floors, water and walls will inhibit the signal and reduce range. Start with the Gateway and your wireless computer in the same room and move it away in small increments to determine the maximum range in your environment.

You may also try using different channels, as this may eliminate interference affecting only one channel. I have excellent signal strength, but I cannot see my network.

WEP is probably enabled on the Gateway, but not on your wireless adapter or vice versa. Verify that the same WEP keys and levels 64 or are being used on all nodes of your wireless network.

There are eleven available channels, ranging from 1 to 11, in North America. If your questions are not addressed here, refer to the Linksys international website, www.

The current generation of Linksys products provide several network security features, but they require specific action on your part for implementation.

So, keep the following in mind whenever you are setting up or using your wireless network. Security Precautions The following is a complete list of security precautions to take at least steps 1 through 5 should be followed : 1.

Change the default SSID. Change the default password for the Administrator account. Change the SSID periodically.

Use the highest encryption algorithm possible. Use WPA if it is available. Please note that this may reduce your network performance.

NOTE: Some of these security features are available only through the network gateway, router, or access point.

Change the WEP encryption keys periodically. Your network administrator is the only person who can change network settings. So, make it harder for a hacker to get that information.

There are several things to keep in mind about the SSID: 1. Disable Broadcast 2. Make it unique 3.

While this option may be more convenient, it allows anyone to log into your wireless network. This includes hackers. Wireless networking products come with a default SSID set by the factory.

Hackers know these defaults and can check these against your network. Change your SSID to something unique and not something related to your company or the networking products you use.

Change your SSID regularly so that any hackers who have gained access to your wireless network will have to start from the beginning in trying to break in.

MAC Addresses. Enable MAC Address filtering. This makes it harder for a hacker to access your network with a random MAC Address.

WEP Encryption. There are several ways that WEP can be maximized: 1. Use the highest level of encryption possible 2. Last, enter a Group Key Renewal period, which instructs the device how often it should change the encryption keys.

These security recommendations should help keep your mind at ease while you are enjoying the most flexible and convenient technology Linksys has to offer.

Windows 98 or Me Instructions 1. Click Start and Run. In the Open field, enter winipcfg. Then press the Enter key or the OK button.

See Figure C Write down the Adapter Address as shown on your computer screen see Figure C This is the MAC address for your Ethernet adapter and is shown in hexadecimal as a series of numbers and letters.

Your computer will show something different. Your computer may show something different. In the Open field, enter cmd. Then press the Enter key.

This appears as a series of numbers and letters. Click the Firmware Upgrade tab. Click the Browse button to find the extracted file, and then double-click it.

Access Point - A device that allows wireless-equipped computers and other devices to communicate with a wired network.

Also used to expand the range of a wireless network. Adapter - A device that adds network functionality to your PC.

Ad-hoc - A group of wireless devices communicating directly with each other peer-to-peer without the use of an access point. Backbone - The part of a network that connects most of the systems and networks together, and handles the most data.

Bandwidth - The transmission capacity of a given device or network. Beacon Interval - Data transmitted on your wireless network that keeps the network synchronized.

Bit - A binary digit. Boot - To start a device and cause it to start executing instructions. Bridge - A device that connects different networks.

Broadband - An always-on, fast Internet connection. Browser - An application program that provides a way to look at and interact with all the information on the World Wide Web.

Buffer - A shared or assigned memory area that is used to support and coordinate different computing and networking activities so one isn't held up by the other.

Daisy Chain - A method used to connect devices in a series, one after the other. Database - A collection of data that is organized so that its contents can easily be accessed, managed, and updated.

Default Gateway - A device that forwards Internet traffic from your local area network. Domain - A specific name for a network of computers.

Download - To receive a file transmitted over a network. DSSS Direct-Sequence Spread-Spectrum - Frequency transmission with a redundant bit pattern resulting in a lower probability of information being lost in transit.

Many specific authentication methods work within this framework. Encryption - Encoding data transmitted in a network.

Ethernet - A networking protocol that specifies how data is placed on and retrieved from a common transmission medium.

Finger - A program that tells you the name associated with an e-mail address. Firewall - A set of related programs located at a network gateway server that protects the resources of a network from users from other networks.

Firmware - The programming code that runs a networking device. Fragmentation -Breaking a packet into smaller units when transmitting over a network medium that cannot support the original size of the packet.

Full Duplex - The ability of a networking device to receive and transmit data simultaneously. Gateway - A device that interconnects networks with different, incompatible communications protocols.

Half Duplex - Data transmission that can occur in two directions over a single line, but only one direction at a time. Hardware - The physical aspect of computers, telecommunications, and other information technology devices.

Infrastructure - A wireless network that is bridged to a wired network via an access point. IP Internet Protocol - A protocol used to send data over a network.

IP Address - The address used to identify a computer or device on a network. ISM band - Radio bandwidth utilized in wireless transmissions.

LAN - The computers and networking products that make up your local network. Multicasting - Sending data to a group of destinations at once.

Node - A network junction or connection point, typically a computer or work station. OFDM Orthogonal Frequency Division Multiplexing - Frequency transmission that separates the data stream into a number of lower-speed data streams, which are then transmitted in parallel to prevent information from being lost in transit.

Packet - A unit of data sent over a network. Passphrase - Used much like a password, a passphrase simplifies the WEP encryption process by automatically generating the WEP encryption keys for Linksys products.

PEAP Protected Extensible Authentication Protocol - A mutual authentication method that uses a combination of digital certificates and another system, such as passwords.

Port - The connection point on a computer or networking device used for plugging in cables or adapters. Power over Ethernet PoE - A technology enabling an Ethernet network cable to deliver both data and power.

PPPoE Point to Point Protocol over Ethernet - A type of broadband connection that provides authentication username and password in addition to data transport.

This protocol is also used as a type of broadband connection in Europe. Preamble - Part of the wireless signal that synchronizes network traffic.

Roaming - The ability to take a wireless device from one access point's range to another without losing the connection.

Router - A networking device that connects multiple networks together. Server - Any computer whose function in a network is to provide user access to files, printing, communications, and other services.

Software - Instructions for the computer. SPI Stateful Packet Inspection Firewall - A technology that inspects incoming packets of information before allowing them to enter the network.

Static IP Address - A fixed address assigned to a computer or device that is connected to a network. Static Routing - Forwarding data in a network via a fixed path.

Subnet Mask - An address code that determines the size of the network. Switch - 1. A data switch that connects computing devices to host computers, allowing a large number of devices to share a limited number of ports.

A device for making, breaking, or changing the connections in an electrical circuit. TCP Transmission Control Protocol - A network protocol for transmitting data that requires acknowledgement from the recipient of data sent.

Throughput - The amount of data moved successfully from one node to another in a given time period. TKIP Temporal Key Integrity Protocol - a wireless encryption protocol that provides dynamic encryption keys for each packet transmitted.

Topology - The physical layout of a network. TX Rate - Transmission Rate. UDP User Datagram Protocol - A network protocol for transmitting data that does not require acknowledgement from the recipient of the data that is sent.

Upgrade - To replace existing software or firmware with a newer version. Upload - To transmit a file over a network.

WEP Wired Equivalent Privacy - A method of encrypting network data transmitted on a wireless network for greater security. Visit www.

Then select your product. Draadloze verbindingen voor buitengebruik en met een reikwijdte van meer dan meter dienen aangemeld te worden bij het Belgisch Instituut voor postdiensten en telecommunicatie BIPT.

Product Usage Restrictions This product is designed for indoor usage only. Outdoor usage is not recommended. Any modification or alteration to the product shall void the warranty see the Warranty Information appendix in this User Guide.

However, some applications may require the antenna s to be separated from the product and installed remotely from the device by using extension cables.

Both of these cables are 9 meters long and have a cable loss attenuation of 5 dB. Combinations of extension cables and antennas resulting in a radiated power level exceeding mW EIRP are illegal.

Proceed to the appropriate section for your device. Note: The power output setting may not be available on all wireless products.

Maximum power output on each adapter does not exceed 20 dBm mW ; it is generally 18 dBm 64 mW or below. Open the Wireless Network Connection window.

Select the General tab, and click the Configure button. In the Properties window, click the Advanced tab. Select Power Output. Windows 1. Open the Control Panel.

Select your current wireless connection, and select Properties. From the Properties screen, click the Configure button.

Click the Advanced tab, and select Power Output. If your computer is running Windows Millennium or 98, then refer to Windows Help for instructions on how to access the advanced settings of a network adapter.

Click the region in which you reside. Click the name of the country in which you reside. Click Products.

Click the appropriate product category. Select a product. Click the type of documentation you want. The document will automatically open in PDF format.

Your exclusive remedy and Linksys' entire liability under this warranty will be for Linksys at its option to repair or replace the Product or refund Your purchase price less any rebates.

This limited warranty extends only to the original purchaser. If You are requested to return the Product, mark the Return Authorization Number clearly on the outside of the package and include a copy of your original proof of purchase.

You are responsible for shipping defective Products to Linksys. Customers located outside of the United States of America and Canada are responsible for all shipping and handling charges.

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