Linksys BEFSX41 manual TCP/IP is compatible with the Router

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Instant Broadband® Series

How will I be notified of new Router firmware upgrades? All Linksys firmware upgrades are posted on the Linksys website at www.linksys.com, where they can be downloaded for free. The Router’s firmware can be upgraded with TFTP programs. If the Router’s Internet connection is working well, there is no need to download a newer firmware version, unless that version contains new features that you would like to use. Downloading a more current version of Router firmware will not always enhance the quality or speed of your Internet connection, and may disrupt your current connection stability.

Will the Router function in a Macintosh environment? Yes, but the Router’s setup pages are accessible only through Internet Explorer 4.0 or Netscape Navigator 4.0 or higher for Macintosh.

I am not able to get the web configuration screen for the Router. What can I do?

You may have to remove the proxy settings on your Internet browser, e.g., Netscape Navigator or Internet Explorer. Or remove the dial-up settings on your browser. Check with your browser documentation, and make sure that your browser is set to connect directly and that any dial-up is disabled. Make sure that your browser is set to connect directly and that any dial-up is dis- abled. For Internet Explorer, click Tools, Internet Options, and then the Connection tab. Make sure that Internet Explorer is set to Never dial a con- nection. For Netscape Navigator, click Edit, Preferences, Advanced, and Proxy. Make sure that Netscape Navigator is set to Direct connection to the Internet.

What is DMZ Hosting? Demilitarized Zone (DMZ) allows one IP address (com- puter) to be exposed to the Internet. Some applications require multiple TCP/IP ports to be open. It is recommended that you set your computer with a static IP if you want to use DMZ Hosting. To get the LAN IP address, see “Appendix G: Finding the MAC Address and IP Address for Your Ethernet Adapter,” or use the web-based utility to determine the MAC address of the computer accessing the Router’s web-based utility.

If DMZ Hosting is used, does the exposed user share the public IP with the Router? No.

Is the Router cross-platform compatible? Any platform that supports Ethernet

and TCP/IP is compatible with the Router.

How many ports can be simultaneously forwarded? Theoretically, the Router can

establish 520 sessions at the same time, but you can only forward 10 ranges of ports.

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

Does the Router replace a modem? Is there a cable or DSL modem in the Router? No, this version of the Router must work in conjunction with a cable or DSL modem.

Which modems are compatible with the Router? The Router is compatible with virtually any cable or DSL modem that supports Ethernet.

What are the advanced features of the Router? The Router’s advanced features include Filters, Forwarding, Dynamic Routing, Static Routing, DMZ Hosting, and MAC Address Cloning.

What is the maximum number of VPN tunnels allowed by the Router?

The Router supports up to two simultaneous IPSec VPN tunnels.

How big is the memory buffer on the Router? 8MB buffer and 2MB flash.

How can I check whether I have static or DHCP IP Addresses? Consult your ISP

to obtain this information.

How do I get mIRC to work with the Router? Under the Port Range Forwarding tab, set port forwarding to 113 for the PC on which you are using mIRC.

If your questions are not addressed here, refer to the Linksys website,

www.linksys.com.

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Contents User Guide Copyright & Trademarks Table of Contents Features IntroductionEnvironmental 139 IP Addresses An Introduction to LANs and WANsNetwork Setup Overview Why Do I Need a VPN?Your Virtual Private Network VPN Firewall Router to Firewall Router What is a Virtual Private Network?Ports PowerRouter’s Back Panel Modem connection will not work from any other portWAN and LAN LEDs Router’s Front Panel LEDsProceed to Connect the Router Overview Connecting Your Hardware Together and Booting UpRouter’s hardware installation is now complete Connect the RouterConfiguring Windows 95, 98, and Millennium PCs Configure the PCsConfiguring Windows 2000 PCs Go to Configure the RouterConfiguring Windows XP PCs Configure the Router Enter the Gateway Address Obtain an IP Address AutomaticallyStatic IP Address Advanced Proxies. Click Direct Connection to the InternetRAS PPPoECable/DSL Firewall Router’s Web-based Utility Quick and Easy Router AdministrationSetup Static IP User Name and PasswordWAN IP Firewall IPSec Pass Through Remote UpgradeBlock WAN Request Multicast Pass ThroughVPN Establishing a TunnelLocal Secure Group and Remote Secure Group Remote Security Gateway Authentication EncryptionKey Management Instant Broadband Series Phase Advanced Settings for Selected IPSec TunnelPassword Other SettingsStatus Dhcp Log Help Filters AdvancedInstant Broadband Series Forwarding UPnP Forwarding Port Triggering Static Routing Dynamic RoutingDMZ Host DMZ PortDMZ Host Address MAC Address Clone Current DMZ HostDdns DynDNS.orgAppendix a Troubleshooting Common Problems and SolutionsTZO.com For Windows NT For Windows XPFor 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 Need to use port triggering Click the Advanced = Filter tabFrequently Asked Questions TCP/IP is compatible with the Router Appendix B Maximizing VPN Security Step One Create an IPSec Policy IntroductionEnvironment Windows 2000 or Windows XPFilter List 1 win-router Step Two Build Filter ListsIP Address Figure C-6 Filter List 2 router=winTunnel 1 win-router Step Three Configure Individual Tunnel RulesAccept Respond Using IPSec XYZ12345. ClickString to Protect Negotiate Security Key exchange pre Shared key, as shownTunnel 2 router-win XYZ12345 Action Require Security This string to protectKey Exchange Preshared key,Step Four Assign New IPSec Policy Figure C-24Figure C-28 Step Five Create a Tunnel Through the Web-based UtilityAppendix D Snmp Functions Appendix E How to Ping Your ISP’s E-mail & Web AddressesFigure E-1 TCP/IP installation is now complete Appendix F Installing the TCP/IP ProtocolFor Windows NT, 2000, and XP Figure G-1Figure G-5 Appendix H Glossary 129 131 133 135 137 Environmental Appendix I SpecificationsWeb FTP Site Appendix J Warranty InformationAppendix K Contact Information Sales InformationCopyright 2003 Linksys, All Rights Reserved
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