Linksys AG241 manual Frequently Asked Questions, Is IPSec Passthrough supported by the Gateway?

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ADSL2 Gateway with 4-Port Switch

If the Gateway is configured correctly, check your Internet connection (DSL/cable modem, etc.) to see if it is working correctly. You can remove the Gateway to verify a direct connection.

Manually configure the TCP/IP settings with a DNS address provided by your ISP.

Make sure that your browser is set to connect directly and that any dial-up is disabled. For Internet Explorer, click Tools, Internet Options, and then the Connection tab. Make sure that Internet Explorer is set to Never dial a connection. For Netscape Navigator, click Edit, Preferences, Advanced, and Proxy. Make sure that Netscape Navigator is set to Direct connection to the Internet.

Frequently Asked Questions

What is the maximum number of IP addresses that the Gateway will support?

The Gateway will support up to 253 IP addresses.

Is IPSec Passthrough supported by the Gateway?

Yes, it is a built-in feature that is enabled by default.

Where is the Gateway installed on the network?

In a typical environment, the Gateway is installed between the ADSL wall jack and the LAN.

Does the Gateway support IPX or AppleTalk?

No. TCP/IP is the only protocol standard for the Internet and has become the global standard for communications. IPX, a NetWare communications protocol used only to route messages from one node to another, and AppleTalk, a communications protocol used on Apple and Macintosh networks, can be used for LAN to LAN connections, but those protocols cannot connect from the Internet to a LAN.

Does the LAN connection of the Gateway support 100Mbps Ethernet?

The Gateway supports 100Mbps over the auto-sensing Fast Ethernet 10/100 switch on the LAN side of the

Gateway.

What is Network Address Translation and what is it used for?

Network Address Translation (NAT) translates multiple IP addresses on the private LAN to one public address that is sent out to the Internet. This adds a level of security since the address of a computer connected to the private LAN is never transmitted on the Internet. Furthermore, NAT allows the Gateway to be used with low cost Internet accounts when only one TCP/IP address is provided by the ISP. The user may have many private addresses behind this single address provided by the ISP.

Does the Gateway support any operating system other than Windows 98SE, Windows Millennium,

Windows 2000, or Windows XP?

Yes, but Linksys does not, at this time, provide technical support for setup, configuration or troubleshooting of any non-Windows operating systems.

Appendix A: Troubleshooting

47

Frequently Asked Questions

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Contents ADSL2 Gateway Copyright and Trademarks How to Use this GuideWord definition Table of Contents Network 2Computer-to-VPN Gateway21 Internet Policy Summary Figure B-11 Filter Acton Tab Introduction WelcomeWhat’s in this Guide? ADSL2 Gateway with 4-Port Switch Planning Your Network Gateway’s FunctionsIP Addresses What’s an IP Address?Dhcp Dynamic Host Configuration Protocol Servers What is a VPN?Dynamic IP Addresses Why do I need a VPN? VPN Gateway to VPN GatewayVPN Gateway-to-VPN Gateway Getting to Know the ADSL2 Gateway with 4- Port Switch LineDSL Overview Connecting the ADSL2 Gateway with 4-Port SwitchConnection to a Computer Adsl Connection Configuring the Gateway SetupAccess Restrictions SecurityApplications & Gaming AdministrationStatus How to Access the Web-based Utility Setup TabBasic Setup Tab Internet SetupRFC 1483 Bridged Dynamic IP Static IPIPoA RFC 2516 PPPoEBridged Mode Only RFC 2364 PPPoAOptional Settings Required by some ISPs Network SetupDynDNS.org Ddns TabTZO.com Advanced Routing Tab Advanced RoutingSecurity Tab FirewallVPN 15 VPN Advanced VPN Tunnel Setup Manual19 Advanced VPN Tunnel Setup Access Restrictions Tab Internet Access22 List of PCs Single Port Forwarding Applications and Gaming TabPort Range Forwarding Port Triggering DMZAdvanced QoS Application-based QoSGateway Access Administration TabManagement UPnP ReportingEmail Alerts Backup&Restore DiagnosticsPing Test Firmware Upgrade Factory DefaultsUpgrade from LAN Reboot 36 RebootStatus Tab GatewayGateway Information Internet ConnectionsDSL Connection 40 DSL ConnectionCommon Problems and Solutions Appendix a TroubleshootingNeed to set a static IP address on a computer Want to test my Internet connection ADSL2 Gateway with 4-Port Switch ADSL2 Gateway with 4-Port Switch TCP UDP Can’t get the Internet game, server, or application to work To start over, I need to set the Gateway to factory default Need to upgrade the firmwareFirmware upgrade failed, and/or the Power LED is flashing My DSL service’s PPPoE is always disconnectingPower LED flashes continuously Frequently Asked Questions Where is the Gateway installed on the network?Is IPSec Passthrough supported by the Gateway? Does the Gateway support IPX or AppleTalk?Does the Gateway support ICQ send file? What is DMZ Hosting? What are the advanced features of the Gateway?Will the Gateway function in a Macintosh environment? Is the Gateway cross-platform compatible?What is a MAC Address? How do I reset the Gateway?How do I get mIRC to work with the Gateway? Can the Gateway act as my Dhcp server?Environment WAG54GHow to Establish a Secure IPSec Tunnel Create an IPSec PolicyBuild Filter Lists Filter List 1 win-RouterFilter List 2 Router -win Figure B-4 IP Filter LIstFigure B-7 IP Filter List Configure Individual Tunnel Rules Tunnel 1 win-RouterFigure B-13 Authentication Methods Figure B-16 Tunnel Setting Tab Tunnel 2 Router-winFigure B-19 IP Filter List Tab Figure B-22 Preshared Key Assign New IPSec Policy Figure B-25 Connection TypeCreate a Tunnel Through the Web-Based Utility Figure B-28 VPN TabFigure C-1 IP Configuration Screen Windows 98 or Me InstructionsWindows 2000 or XP Instructions Figure C-3 MAC Address/Physical AddressFigure D-1 Upgrade Firmware Appendix D Upgrading FirmwareAppendix E Glossary ADSL2 Gateway with 4-Port Switch ADSL2 Gateway with 4-Port Switch ADSL2 Gateway with 4-Port Switch ADSL2 Gateway with 4-Port Switch ADSL2 Gateway with 4-Port Switch Appendix F Specifications ADSL2 Gateway with 4-Port Switch Appendix G Regulatory Information FCC StatementAppendix H Warranty Information Europe Mail Address Appendix I Contact InformationOutside of Europe Mail Address
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