Viewsonic WMG120 User Manual

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ViewSonic Wireless Media Gateway
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Service filtering 
Service Filtering allows you to select what types of packets are 
able to pass through the WMG.  In Service Screen, you could see 
the list of all pre-set services.  If to add more services, select “Add” 
to specify more services.
To define a service, first determine which port number or range of 
number is used by the application.  Common applications are 
defined by IETF.  Service numbers for other applications are 
typically chosen from the range of 1024 to 65535 by the authors of 
the application.   
Type in the Service Name you wish to call, the assign the 
corresponding service port either by single and range type.  If you 
know that application uses either TCP or UDP, select the 
appropriate protocol.  Click “Add” to add more service rule.  All the 
service rules will appear on the Access Control, Inbound/Outbound 
policy menu, the destination port selection.