Linksys WRT51AB manual 4GHz, 802.11b WEP

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Instant Wireless® Series

WEP (Encryption) An acronym for Wired Equivalent Privacy, WEP is an encryption method used to protect your wireless data communications. WEP uses a combination of 64-bit or 128-bit keys to provide access control to your network and encryption security for every data transmission. To decode a data transmission, each device in a network must use an identical 64-bit or 128-bit key. Higher encryption levels offer higher levels of securi- ty, but due to the complexity of the encryption, they may decrease network performance. Click the 2.4GHz WEP Settings button to configure the WEP keys for your 2.4GHz, 802.11b network (see Figure 6-12).

Check all the values, and click the Apply button to save your 2.4GHz, 802.11b settings. To cancel any changes you’ve entered on this page, click the Cancel button. To get more information about the features, click the Help button.

2.4GHz, 802.11b (WEP)

The 2.4GHz, 802.11b (WEP) screen allows you to configure your 2.4GHz, 802.11b WEP settings. WEP encryption is recommended to increase the security of your wireless network.

WEP Encryption Keys 1-4 offer 64-bit or 128-bit encryption; select the type of encryption you want from the drop-down box. To disable WEP Encryption, select Disable.

Figure 6-12

Dual-Band Wireless A+B Broadband Router

Default Transmit Key Select which WEP key (1-4) will be used when the Router sends data. Make sure the receiver is using the same key.

Passphrase 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 16 alphanumeric characters. This Passphrase function is compatible with Linksys wireless products only. [If you want to communicate with non-Linksys wireless products, enter the WEP key(s) manually on the non-Linksys wireless products.] After you enter the Passphrase, click the Generate button to create WEP keys.

Keys 1-4WEP keys enable you to create an encryption scheme for wireless LAN transmissions. Manually enter a set of values. (Do not leave a key field blank, and do not enter all zeroes. These are not valid key values.) Keys 1-4 offer 64-bit or 128-bit encryption.

If you are using 64-bit WEP encryption, then the key must be exactly 10 hexadecimal characters in length. If you are using 128-bit WEP encryption, then the key must be exactly 26 hexadecimal characters in length. Valid hexadecimal characters are “0”-“9” and “A”-“F”.

Check all the values, and click the Apply button to save your 2.4GHz, 802.11b WEP settings.

To apply any of the settings you change on this page, click the Apply button. To cancel any changes you’ve entered on this page, click the Cancel button. To get more information about the features, click the Help button.

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Contents Dual-Band Wireless A+B Broadband Router Copyright & Trademarks Table of Contents Introduction Common Problems and Solutions Frequently Asked QuestionsEnvironmental 127 IP Addresses FeaturesRouter’s Functions What’s an IP Address?Router Setup Overview Dhcp Dynamic Host Configuration Protocol ServersDynamic IP Addresses Router’s Back Panel Getting to Know the Dual-Band Wireless A+B Broadband RouterRouter’s Front Panel LEDs Internet Indicators LAN IndicatorsProceed to Connect the Router Connect the Router Wired Connection to a PCOverview Configure the PCs Wireless Connection to a PCConfiguring Windows 98 and Millennium PCs Go to Configure the Router’s Basic SettingsConfiguring Windows 2000 PCs Configuring Windows XP PCs Configure the Router’s Basic Settings Static or Fixed IP Address Automatic Configuration DhcpEnter the Default Gateway Enter the Internet IP AddressHow to Access the Web-based Utility Router’s Web-based UtilityAutomatic Configuration Dhcp SetupStatic IP Pptp 5GHz, 802.11a 5GHz, 802.11a WEP 4GHz, 802.11b WEP Password StatusLAN Dhcp Log HelpAdvanced Tabs Advanced Wireless 5GHz, 802.11a802.1x Configuration Radius Server Filters Private IP Filter Private MAC Filter To set up a filter11-20 , 21-30 , 31-40 , or 41-50 from Applications External Port TCP Protocol UDP Protocol Port ForwardingRouting Click the Delete This Entry buttonDMZ Host MAC Address Clone Need to set a static IP address on a PC Appendix a TroubleshootingCommon Problems and Solutions For Windows NTWant to test my Internet connection For Windows XPFor Windows 98, Me, 2000, and XP Need to set up a server behind my Router TCP UDPCan’t get the Internet game, server, or application to work Firmware upgrade failed, and/or the Diag LED is flashing To start over, I need to set the Router to factory defaultNeed to upgrade the firmware My DSL service’s PPPoE is always disconnectingFrequently Asked Questions Click the Advanced = Filters tabDoes the Router support ICQ send file? How can I block corrupted FTP downloads?What is the Ieee 802.11a standard? What is DMZ Hosting?What are the advanced features of the Router? What is the Ieee 802.11b standard?What is infrastructure mode? What Ieee 802.11b features are supported?What is ad-hoc mode? What is roaming?How do I reset the Router? What is WEP?What is a MAC Address? How do I resolve issues with signal loss?Appendix B How to Ping Your ISP’s E-mail & Web Addresses Step One Pinging an IP AddressStep Two Pinging for a Web Address Appendix C Configuring Wireless SecurityBackground 802.1x Authentication WEP EncryptionMD5 Authentication for Windows XP Figure C-2Figure C-5 Digital Certificate Installation Figure C-9Click Install this certificate Figure C-13TLS Authentication for Windows XP Figure C-18Figure C-21 Figure C-25 For Windows 95, 98, and MeFigure D-3 For Windows NT, 2000, and XPAppendix E Glossary 111 113 115 117 119 121 123 125 Category 5 Ethernet Network Cable or better Appendix F SpecificationsOne 10/100 RJ-45 Port for Cable/DSL Modem EnvironmentalAppendix H Contact Information Appendix G Warranty InformationSales Information Technical Support RMA Issues Fax Web site FTP siteCopyright 2002 Linksys, All Rights Reserved