Linksys AG041 manual Port Range Forwarding, Port Triggering

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ADSL Gateway with 4-Port Switch

Port Range Forwarding

The Port Forwarding screen sets up public services on your network, such as web servers, ftp servers, e-mail servers, or other specialized Internet applications. (Specialized Internet applications are any applications that use Internet access to perform functions such as videoconferencing or online gaming. Some Internet applications may not require any forwarding.)

When users send this type of request to your network via the Internet, the Gateway will forward those requests to the appropriate computer. Any computer whose port is being forwarded should have its DHCP client function disabled and should have a new static IP address assigned to it because its IP address may change when using the DHCP function.

Application. Enter the name you wish to give each application.

Start and End. Enter the starting and ending numbers of the port you wish to forward.

TCP UDP. Select the type of protocol you wish to use for each application: TCP, UDP, or Both.

IP Address. Enter the IP Address and Click Enabled.

Figure 5-22: Applications & Gaming - Port Range Forwarding

When finished making your changes on this tab, click the Save Settings button to save these changes, or click the Cancel Changes button to undo your changes.

Port Triggering

Port Triggering is used for special applications that can request a port to be opened on demand. For this feature, the Gateway will watch outgoing data for specific port numbers. The Gateway will remember the IP address of the computer that sends a transmission requesting data, so that when the requested data returns through the Gateway, the data is pulled back to the proper computer by way of IP address and port mapping rules.

Application. Enter the name you wish to give each application.

Start Port and End Port. Enter the starting and ending Outgoing Triggered Range numbers and the Incoming Forwarded Range numbers of the port you wish to forward.

When finished making your changes on this tab, click the Save Settings button to save these changes, or click the Cancel Changes button to undo your changes.

Figure 5-23: Applications & Gaming - Port Triggering

Chapter 5: Configuring the ADSL Gateway

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The Applications and Gaming Tab

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Contents Adsl Gateway Copyright and Trademarks How to Use this GuideWord definition Table of Contents Adsl Gateway with 4-Port Switch A Network with the Gateway List of Figures23 Applications & Gaming Port Triggering Figure B-23 New Preshared Key Welcome IntroductionWhat’s in this Guide? Adsl Gateway with 4-Port Switch Gateway’s Functions Planning your NetworkIP Addresses What’s an IP Address?Dhcp Dynamic Host Configuration Protocol Servers What is a VPN?Dynamic IP Addresses Encryption encoding data transmitted in a networkVPN Gateway to VPN Gateway Why do I need a VPN?VPN Gateway-to-VPN Gateway Back Panel Getting to Know the Adsl GatewayDSL Front PanelConnecting to a Computer Connecting the Adsl GatewayISP a company that provides access to the Internet OverviewConnect power Setup Configuring the Adsl GatewayAccess Restrictions SecurityAdministration How to Access the Web-based UtilityApplications & Gaming StatusBasic Setup Setup TabInternet Setup Static IP RFC 1483 Bridged Dynamic IPRFC 2516 PPPoE RFC 1483 RoutedRFC 2364 PPPoA Bridged Mode OnlyNetwork Setup Optional Settings Required by some ISPsDynDNS.org DdnsAdvanced Routing Advanced RoutingStatic Routing 12 Routing Table Firewall Security TabSoftware instructions for the computer VPN15 VPN with Manual Key Management Phase Advanced VPN Tunnel SetupConfiguring the Adsl Gateway Security Tab Internet Access Access Restrictions Tab19 List of PCs Single Port Forwarding Applications and Gaming TabPort Triggering Port Range ForwardingDMZ Gateway Access Administration TabManagement UPnP Log ReportingEmail Alerts Smtp the standard e-mail protocol on the InternetFactory Defaults DiagnosticsPing Test Ping Test Parameters 29 Administration tab Firmware Upgrade Firmware UpgradeGateway Status TabGateway Information Internet ConnectionsDSL Connection Local NetworkCommon Problems and Solutions Appendix a TroubleshootingNeed to set a static IP address on a computer Want to test my Internet connection Open a command prompt. For Windows 98 and Me Adsl Gateway with 4-Port Switch TCP UDP Can’t get the Internet game, server, or application to work VPN IpsecNeed to upgrade the firmware To start over, I need to set the Gateway to factory defaultFirmware upgrade failed, and/or the Power LED is flashing My DSL service’s PPPoE is always disconnecting Power LED flashes continuously Frequently Asked QuestionsWhere is the Gateway installed on the network? Is IPSec Passthrough supported by the Gateway?Does the Gateway support ICQ send file? What is Network Address Translation and what is it used for?What is DMZ Hosting? What is a MAC Address? What are the advanced features of the Gateway?How do I reset the Gateway? Is the Gateway cross-platform compatible?Environment IntroductionCreate an IPSec Policy How to Establish a Secure IPSec TunnelBuild Filter Lists Filter List 1 win-RouterFigure B-4 IP Filter LIst Filter List 2 Router -winFigure B-7 IP Filter List Tunnel 1 win-Router Configure Individual Tunnel RulesFigure B-13 Authentication Methods Tunnel 2 Router-win Figure B-16 Tunnel Setting TabFigure B-19 IP Filter List Tab Figure B-22 Preshared Key Figure B-25 Connection Type Assign New IPSec PolicyFigure B-28 VPN Tab Create a Tunnel Through the Web-Based UtilityWindows 98 or Me Instructions Figure C-1 IP Configuration ScreenFigure C-3 MAC Address/Physical Address Windows 2000 or XP InstructionsAppendix D Upgrading Firmware Figure D-1 Upgrade FirmwareShared Resources Appendix E Windows HelpNetwork Neighborhood/My Network Places Appendix F Glossary Adsl Gateway with 4-Port Switch Adsl Gateway with 4-Port Switch Adsl Gateway with 4-Port Switch Standards Appendix G SpecificationsLimited Warranty Appendix H Warranty InformationFCC Statement Appendix I Regulatory InformationEurope Mail Address Appendix J Contact InformationOutside of Europe Mail Address