Gateway GT704 user manual Application Layer Gateway and Port Forwarding

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Chapter 4 Using Advanced Setup

Application Layer Gateway and Port Forwarding

Selecting Application Layer Gateway in the “Configuring the Advanced Settings” screen generates the “Application-Level Gateway (ALG) and Port Forwarding” screen. Port forwarding allows certain programs to bypass the Gateway’s built-in firewall, allowing access to parts of the network (for hosting a Web or ftp server, for example). To use, select the host name of a computer on the network from the “LAN Device” drop-down list (click the down arrow), then click Add. Next, select a “Category” by clicking the appropriate radio button. In the “Available Rules” list box, select a game, application, server, etc., then click Add>>. The selected item appears in the “Applied Rules” list box. Repeat for each item needed

To remove an item from the Applied Rules list, highlight it, then click Remove. To view an item’s rules (forwarded ports, etc.), highlight it, then click View Rule.

To create a custom set of rules, click the “User” radio button, then click New. The “Rule Management” screen appears.

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Contents DSL Gateway Table of Contents Using Utilities Setting Up a NetworkTroubleshooting Setting Up Static IP on the ComputerPackage Contents Introduction1Features Minimum System RequirementsIntroduction Power Light Getting to Know the GatewayDSL Light Internet Light Ethernet LightsUSB Light Phone PortReset Switch Power PortPower Switch USB PortSetting Up Gateway Connecting a Computer to the GatewayPage Setting Up the Gateway Page Setting Up the Gateway Page Setting Up the Gateway Page Setting Up the Gateway Page Setting Up the Gateway Page Setting Up the Gateway Page Setting Up the Gateway Installing Phone Filters Setting Up the Gateway Page Setting Up the Gateway Setting Up the DSL Connection Setting Up the Gateway Page Setting Up the Gateway Page Performing a Basic Setup Basic SetupPage Changing the Admin User Name and Password Click Save and Restart at the bottom of the screen Using Advanced Setup Accessing Advanced SetupTo access the Web Configurator’s Advanced Setup screens WAN IP Address Transparent Bridging Obtain an IP Address through PPPoE or PPPoABroadband Connection via PPPoE screen PPP Auto Connect PPP Auto Connect onEncapsulation PPPoA only Specify a Static IP Address LAN IP Address Dhcp ServerBeginning IP Address Ending IP AddressServices Blocking Lease TimeDomain Name DNS Dynamic or StaticWebsite Blocking Remote Management Application Layer Gateway and Port Forwarding DMZ Hosting Firewall HighMedium LowDynamic Routing NAT Network Address Translation Static RoutingUPnP Universal Plug and Play Time ZoneRemote Syslog Capture Viewing Gateway’s Status General StatusPage Routing Table ARP TableWAN Status LAN Status Active User ListThis page left intentionally blank Using Utilities Web Activity LogSystem Log DSL Settings Restore Default Settings Upgrade FirmwareSetting Up a Network EthernetPage Setting Up a Network Page Setting Up a Network USB Setting Up a Network Page Setting Up a Network Page Troubleshooting TroubleshootingCannot Use the Internet Physical ConnectionsFrequently Asked Questions Connection to the InternetWhich protocols does the Gateway support? Which connection speeds does the Gateway support?Is the Gateway flash-upgradeable? How do I do it? What is the valid IP range I can use for my home network?How do I find out which IP address my computer is using? Will my Xbox work with the Gateway?Yes, if the application is designed to run over a network What is the default username for the Gateway? What is NAT and how does it protect my network?How many computers can be connected through the Gateway? Does the Gateway function as a firewall?This page left intentionally blank Reference Locating Computer InformationLocating Windows Operating System Files Appendix a Reference Click Search Setting Up Static IP On the Computer Windows 98 SEPage 192.168.0.2 Windows Me Enter the following address in the Subnet mask text boxAppendix b Setting Up Static IP on the Computer 192.168.0.2 Windows Page Appendix b Setting Up Static IP on the Computer 192.168.0.2 Windows XP Page Appendix b Setting Up Static IP on the Computer 192.168.0.2 Comparing DSL Service with a Dial-Up Modem Computer SecurityGateway Security Computer SecurityInternet Browsers Electronic Security 100 Specifications d GeneralWAN PPP, DHCP, Static IP Full-rate Adsl InterfaceLED Indicators Power, DSL, Internet, Ethernet 4, USBEnvironmental Access Point Glossary104 Ssid 106 Non-Windowsf System Setup Classic108 Appendix f Non-Windows Setup 110 Regulatory Compliance Notices ModificationsClass B Equipment Miscellaneous Legal Notices All other names are the property of their respective ownersLimited Warranty 113114 Limited Warranty 116