Netgear WGT624 WGT624v1 Reference Manual - Page 55
Configuring a User Defined Service, Engineering Task Force IETF and published in RFC1700
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Reference Manual for the 108 Mbps Wireless Firewall Router WGT624 Services are functions performed by server computers at the request of client computers. For example, web servers serve web pages, time servers serve time and date information, and game hosts serve data about other players' moves. When a computer on your network sends a request for service to a server computer on the Internet, the requested service is identified by a service or port number. This number appears as the destination port number in the transmitted IP packets. For example, a packet that is sent with destination port number 80 is an HTTP (web server) request. To enable service blocking, select either Per Schedule or Always, then click Apply. If you want to block by schedule, be sure that a time period is specified in the Schedule menu. To specify a service for blocking, click Add. The Add Services menu will appear, as shown below: Figure 5-3: Add Services menu From the Service Type list, select the application or service to be allowed or blocked. The list already displays several common services, but you are not limited to these choices. To add any additional services or applications that do not already appear, select User Defined. • Configuring a User Defined Service To define a service, first you must determine which port number or range of numbers is used by the application. The service numbers for many common protocols are defined by the Internet Engineering Task Force (IETF) and published in RFC1700, "Assigned Numbers." Service numbers for other applications are typically chosen from the range 1024 to 65535 by the authors of Content Filtering 5-3 M-10153-01