NETGEAR ProSafe FVS338 Reference Manual page 89

Although the FVS338 already holds a list of many service port numbers, you are not limited to
these choices. Use the Services menu to add additional services and applications to the list for use
in defining firewall rules. The Services menu shows a list of services that you have defined, as
shown in Figure 7-8:
Figure 7-8: Services and Add Custom Service screens
To define a new service, first you must determine which port number or range of numbers is used
by the application. This information can usually be determined by contacting the publisher of the
application or from user groups of newsgroups. When you have the port number information, go
the Services menu and click on the Add Custom Service button. The Add Services menu will
appear, as shown in Figure
To add a service:
Enter a descriptive name for the service so that you will remember what it is.
1.
Select whether the service uses TCP or UDP as its transport protocol.
2.
If you can't determine which is used, select both.
Enter the lowest port number used by the service.
3.
Enter the highest port number used by the service.
4.
If the service only uses a single port number, enter the same number in both fields.
Firewall Protection and Content Filtering
Reference Manual for the ProSafe VPN Firewall 50 FVS338
7-8.
January 2005
7-13