Netgear WGU624 Guide D’Exploitation

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Reference Manual for the Double 108 Mbps Wireless Firewall Router WGU624
Content Filtering
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Blocking Access to Internet Services
The WGU624 wireless router allows you to block the use of certain Internet services by PCs on 
your network. This is called services blocking or port filtering. The Block Services menu is shown 
below:
Figure 5-2:  Block Services menu
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.