Reference Manual for the Model RP614 v2 Web Safe Router
3-4 Content Filtering
To specify a service for blocking, click Add. The Add Services menu will appear, as shown below:
Figure 3-3: 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 ra nge 1024 to 65535 by the auth ors of
the application. This information can usually be determined by contacting the publisher of the
application or from user groups of newsgroups.
Enter the Starting Port and Ending Port numbers. If the applic ation us es a sing le port n umber , enter
that number in both boxes.
If you know that the application uses either TCP or UDP , se lect the appr opriate p rotocol. I f you are
not sure, select Both.