Linksys BEFSX41 manual Am not able to access the Router’s web interface Setup

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Instant Broadband® Series

F.Turn off the computer, Router, and cable/DSL modem. Wait 30 seconds, and then turn on the Router, cable/DSL modem, and computer. Check the Status tab of the Router’s web-based utility to see if you get an IP address.

4. I am not able to access the Router’s web interface Setup page.

A.Refer to “Problem #2, I want to test my Internet connection” to verify that your computer is properly connected to the Router.

B.Refer to “Appendix G: Finding the MAC Address and IP address for Your Ethernet Adapter” to verify that your computer has an IP Address, Subnet Mask, Gateway, and DNS.

C.Set a static IP address on your system; refer to “Problem #1: I need to set a static IP address.”

D.Refer to “Problem #10: I need to remove the proxy settings or the dial-up pop-up window (for PPPoE users).”

5.I can’t get my Virtual Private Network (VPN) Pass-Through working through the Router (not a VPN tunnel).

Access the Router’s web interface by going to http://192.168.1.1 or the IP address of the Router, and go to the Advanced => Filter tab. Make sure you have IPsec pass-through and/or PPTP pass-through enabled.

VPNs that use IPSec with the ESP (Encapsulation Security Payload known as protocol 50) authentication will work fine. At least one IPSec session will work through the Router; however, simultaneous IPSec sessions may be possible, depending on the specifics of your VPNs.

VPNs that use IPSec and AH (Authentication Header known as protocol 51) are incompatible with the Router. AH has limitations due to occasional incom- patibility with the NAT standard.

Change the IP address for the Router to another subnet to avoid a conflict between the VPN IP address and your local IP address. For example, if your VPN server assigns an IP address 192.168.1.X (X is a number from 1 to 254) and your local LAN IP address is 192.168.1.X (X is the same number used in the VPN IP address), the Router will have difficulties routing information to the right location. If you change the Router’s IP address to 192.168.2.1, that should solve the problem. Change the Router’s IP address through the Setup tab of the web interface. If you assigned a static IP address to any computer or net- work device on the network, you need to change its IP address accordingly to 192.168.2.Y (Y being any number from 1 to 254). Note that each IP address must be unique within the network.

EtherFast® Cable/DSL Firewall Router with 4-Port Switch/VPN Endpoint

Your VPN may require port 500/UDP packets to be passed to the computer that is connecting to the IPSec server. Refer to “Problem #7, I need to set up online game hosting or use other Internet applications” for details.

Check the Linksys website for more information at www.linksys.com.

6. I need to set up a server behind my Router.

To use a server like a web, ftp, or mail server, you need to know the respective port numbers they are using. For example, port 80 (HTTP) is used for web; port 21 (FTP) is used for FTP, and port 25 (SMTP outgoing) and port 110 (POP3 incoming) are used for the mail server. You can get more information by viewing the documentation provided with the server you installed. Follow these steps to set up port forwarding through the Router’s web-based utility. We will be setting up web, ftp, and mail servers.

A.Access the Router’s web-based utility by going to http://192.168.1.1 or the IP address of the Router. Go to the Advanced => Forwarding tab.

B.Enter any name you want to use for the Customized Application.

C.Enter the Ext. Port range of the service you are using. For example, if you have a web server, you would enter the range 80 to 80.

D.Check the protocol you will be using, TCP and/or UDP.

E.Enter the IP address of the PC or network device that you want the port server to go to. For example, if the web server’s Ethernet adapter IP address is 192.168.1.100, you would enter 100 in the field provided. Check “Appendix G: Finding the MAC Address and IP Address for Your Ethernet Adapter” for details on getting an IP address.

F.Check the Enable option for the port services you want to use. Consider the example below:

Customized

Ext. Port

TCP

UDP

IP Address

Enable

Application

 

 

 

 

 

Web server

80 to 80

X

X

192.168.1.100

X

FTP server

21 to 21

X

 

192.168.1.101

X

SMTP (outgoing)

25 to 25

X

X

192.168.1.102

X

POP3 (incoming)

110 to 110

X

X

192.168.1.102

X

When you have completed the configuration, click the Apply button and then the Continue button.

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Contents User Guide Copyright & Trademarks Table of Contents Introduction FeaturesEnvironmental 139 An Introduction to LANs and WANs IP AddressesWhy Do I Need a VPN? Network Setup OverviewYour Virtual Private Network VPN What is a Virtual Private Network? Firewall Router to Firewall RouterModem connection will not work from any other port PowerRouter’s Back Panel PortsRouter’s Front Panel LEDs WAN and LAN LEDsProceed to Connect the Router Connect the Router Connecting Your Hardware Together and Booting UpRouter’s hardware installation is now complete OverviewConfigure the PCs Configuring Windows 95, 98, and Millennium PCsGo to Configure the Router Configuring Windows 2000 PCsConfiguring Windows XP PCs Configure the Router Advanced Proxies. Click Direct Connection to the Internet Obtain an IP Address AutomaticallyStatic IP Address Enter the Gateway AddressPPPoE RASQuick and Easy Router Administration Cable/DSL Firewall Router’s Web-based UtilitySetup User Name and Password Static IPWAN IP Firewall Multicast Pass Through Remote UpgradeBlock WAN Request IPSec Pass ThroughEstablishing a Tunnel VPNLocal Secure Group and Remote Secure Group Remote Security Gateway Encryption AuthenticationKey Management Instant Broadband Series Advanced Settings for Selected IPSec Tunnel PhaseOther Settings PasswordStatus Dhcp Log Help Advanced FiltersInstant Broadband Series Forwarding UPnP Forwarding Port Triggering Dynamic Routing Static RoutingDMZ Port DMZ HostDMZ Host Address Current DMZ Host MAC Address CloneDynDNS.org DdnsCommon Problems and Solutions Appendix a TroubleshootingTZO.com For Windows XP For Windows NTFor Windows 95, 98, and Me For Windows XP Am not able to access the Router’s web interface Setup Can’t get the Internet game, server, or application to work To start over, I need to set the Router to factory default Click the Advanced = Filter tab Need to use port triggeringFrequently Asked Questions TCP/IP is compatible with the Router Appendix B Maximizing VPN Security Windows 2000 or Windows XP IntroductionEnvironment Step One Create an IPSec PolicyStep Two Build Filter Lists Filter List 1 win-routerIP Address Filter List 2 router=win Figure C-6Step Three Configure Individual Tunnel Rules Tunnel 1 win-routerShared key, as shown Respond Using IPSec XYZ12345. ClickString to Protect Negotiate Security Key exchange pre AcceptTunnel 2 router-win Preshared key, Action Require Security This string to protectKey Exchange XYZ12345Figure C-24 Step Four Assign New IPSec PolicyStep Five Create a Tunnel Through the Web-based Utility Figure C-28Appendix E How to Ping Your ISP’s E-mail & Web Addresses Appendix D Snmp FunctionsFigure E-1 Appendix F Installing the TCP/IP Protocol TCP/IP installation is now completeFigure G-1 For Windows NT, 2000, and XPFigure G-5 Appendix H Glossary 129 131 133 135 137 Appendix I Specifications EnvironmentalSales Information Appendix J Warranty InformationAppendix K Contact Information Web FTP SiteCopyright 2003 Linksys, All Rights Reserved
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