Linksys WRT51AB manual Introduction, Common Problems and Solutions Frequently Asked Questions

Page 4

Instant Wireless® Series

Appendix A: Troubleshooting	66
Common Problems and Solutions	66
Frequently Asked Questions	77
Appendix B: How to Ping Your ISP’s E-mail &
Web Addresses	86
Appendix C: Configuring Wireless Security	89
Background	89
WEP Encryption	90
802.1x Authentication	91
MD5 Authentication for Windows XP	92
Digital Certificate Installation	97
TLS Authentication for Windows XP	101
Appendix D: Finding the MAC Address and IP
Address for Your Ethernet Adapter	105
Appendix E: Glossary	108
Appendix F: Specifications	126
Environmental	127
Appendix G: Warranty Information	128
Appendix H: Contact Information	129

Dual-Band Wireless A+B Broadband Router

Chapter 1: Introduction

s EtherFast® Cable/DSL Router

The Dual-Band Wireless A+B Broadband Router

The Dual-Band Wireless A+B Broadband Router is like four devices in one box! The Router function lets you securely share one high-speed Internet con- nection among your entire network, while the 4-port, 10/100 switch jump-starts your wired Ethernet network. Connect four PCs directly, or daisy-chain out to more hubs and switches to create as big a network as you need.

The Dual-Band Wireless A+B Broadband Router also contains two wireless access points, which let you connect with wirelessly networked PCs using either the popular 2.4GHz, 802.11b standard at 11Mbps, or the new, almost five times faster, 5GHz, 802.11a standard. Since both standards are built-in, you can protect your investment in existing 802.11b equipment today, and migrate to the 802.11a standard as your needs grow.

In addition to up to 152-bit encryption of wireless transmissions, the two access points in the Dual-Band Wireless A+B Broadband Router support the industri- al-strength wireless security of 802.1x authentication and authorization. The Router also serves as a DHCP server, has NAT technology to protect against Internet intruders, supports VPN pass-through, and can be configured to filter internal users’ access to the Internet. Configuration is a snap with the web browser-based configuration utility.

With the Linksys Dual-Band Wireless A+B Broadband Router at the center of your home or office network, you can share a high-speed Internet connection, files, printers, and multi-player games with the flexibility, speed, and security you need!

1

Image 4

Contents Dual-Band Wireless A+B Broadband Router Copyright & Trademarks Table of Contents Introduction Common Problems and Solutions Frequently Asked QuestionsEnvironmental 127 Features Router’s FunctionsIP Addresses 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 Automatic Configuration Dhcp Enter the Default GatewayStatic or Fixed IP Address 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 Appendix a Troubleshooting Common Problems and SolutionsNeed to set a static IP address on a PC 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 To start over, I need to set the Router to factory default Need to upgrade the firmwareFirmware upgrade failed, and/or the Diag LED is flashing 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 DMZ Hosting? What are the advanced features of the Router?What is the Ieee 802.11a standard? What is the Ieee 802.11b standard?What Ieee 802.11b features are supported? What is ad-hoc mode?What is infrastructure mode? What is roaming?What is WEP? What is a MAC Address?How do I reset the Router? 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 Appendix F Specifications One 10/100 RJ-45 Port for Cable/DSL ModemCategory 5 Ethernet Network Cable or better EnvironmentalAppendix G Warranty Information Sales Information Technical Support RMA Issues FaxAppendix H Contact Information Web site FTP siteCopyright 2002 Linksys, All Rights Reserved