NETGEAR MR814 Reference Manual page 61

Reference Manual for the Model MR814 Wireless Router
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 in
Figure 6-4 below:
Figure 6-4. 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.
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