NETGEAR ProSafe FVS124G - Manual (Page 93)

Reference Manual for the ProSafe VPN Firewall 25 with 4 Gigabit LAN and Dual WAN Ports
Firewall Protection and Content Filtering 6-17
202-10085-01, March 2005
Although the FVS124G 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 6-11 :
Figure 6-11: 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 6-11 .
To add a service:
1. Enter a descriptive name for the service so that you will remember what it is.
2. Select whether the service uses TCP or UDP as its transport protocol.
If you can’t determine which is used, select both.
3. Enter the lowest port number used by the service.
4. Enter the highest port number used by the service.
If the service only uses a single port number, enter the same number in both fields.