Linksys WRT51AB manual Configure the Router’s Basic Settings

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Instant Wireless® Series

Chapter 5: Configure the Router’s Basic Settings

This chapter will show you how to configure the Router to function in your network and gain access to the Internet through your Internet Service Provider (ISP). Detailed description of the Router’s web-based utility can be found in “Chapter 6: The Router’s Web-based Utility.”

The instructions from your ISP tell you how to set up your PC for Internet access. Because you are now using the Router to share Internet access among several computers, you will use the setup information to configure the Router instead of your PC. You only need to configure the Router once using the first computer you set up.

1.Open your web browser. Enter http://192.168.1.1 (the Router’s default IP address) in the web browser’s Address field. Press the Enter key.

Figure 5-1

2.An Enter Network Password window, shown in Figure 5-2, will appear. Windows XP users will see a Connect to 192.168.1.1 window, shown in Figure 5-3. Leave the User Name field empty, and enter admin in lowercase letters in the Password field (admin is the default password). Then, click the OK button.

Figure 5-2

Figure 5-3

Note: For added security, you should change the password through the Password screen of the web-based utility.

Dual-Band Wireless A+B Broadband Router

3.The web-based utility will appear with the Setup tab selected. Based on the setup instructions from your ISP, you may need to provide the Host Name and Domain Name (usually cable ISPs require them). These fields allow you to provide a host name and domain name for the Router and are usual- ly left blank.

The values for the Router’s LAN IP Address and Subnet Mask are shown on the Setup screen. The default values are 192.168.1.1 for the IP Address and 255.255.255.0 for the Subnet Mask.

4.The Router supports four connection types: Automatic Configuration - DHCP (obtain an IP automatically), Static IP, PPPoE, and PPTP. These types are listed in the drop-down menu for the Configuration Type setting. Each Setup screen and available features will differ depending on what kind of connection type you select. Proceed to the instructions for the connec- tion type you are using, and then continue to step 5.

IMPORTANT: If you have previously enabled any Internet-sharing proxy server software on any of your PCs, you must disable it now.

Some examples of Internet-sharing software are Internet LanBridge, Wingate, ICS, and Sygate. To disable your Internet-sharing software:

If you are running Netscape Navigator, click Edit, Preferences, Advanced, and Proxies. Click Direct Connection to the Internet.

If you are running Internet Explorer 5.x or higher, click Tools, Settings, Control Panel, Internet Options, Connections, and LAN Settings. Remove checkmarks from all three boxes. Click the OK button to continue.

You must also disable any Internet log-on software (such as Ivasion Winpoet or Enternet 300) and any firewall software (such as ZoneAlarm and Watchdog) on all of your PCs.

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Contents Dual-Band Wireless A+B Broadband Router Copyright & Trademarks Table of Contents Environmental 127 Common Problems and Solutions Frequently Asked QuestionsIntroduction IP Addresses FeaturesRouter’s Functions What’s an IP Address?Dynamic IP Addresses Dhcp Dynamic Host Configuration Protocol ServersRouter Setup Overview Router’s Front Panel LEDs Getting to Know the Dual-Band Wireless A+B Broadband RouterRouter’s Back Panel Proceed to Connect the Router LAN IndicatorsInternet Indicators Overview Wired Connection to a PCConnect the Router 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 11-20 , 21-30 , 31-40 , or 41-50 from Private MAC Filter To set up a filterPrivate IP Filter 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 NTFor Windows 98, Me, 2000, and XP For Windows XPWant to test my Internet connection 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 AddressBackground Appendix C Configuring Wireless SecurityStep Two Pinging for a Web Address 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