3Com 3CRWE554G72 User Guide - Page 65

Special Applications, Custom, Authorized Application

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Firewall 65 Or select Custom to specify a suitable name for the service and then enter the port numbers required for that service. (Figure 47) Figure 47 Custom Setup Screen 4 Click Add to save the settings. The port numbers are specified using a comma-separated list, with hyphens to denote port number ranges. So for example, entering 2, 3, 5-7 would cause ports 2, 3, 5, 6, and 7 to be activated. Special Applications Figure 48 Special Applications Screen Select Special Applications tab to display Authorized Application setup screen. (Figure 48) Some software applications require special or multiple connections to the Internet and these would normally be blocked by the firewall. For example Internet Telephony or Video conferences require multiple connections. So that these special applications can work properly and are not blocked, the firewall needs to be told about them. In each instance there will be a

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Firewall
65
Or select
Custom
to specify a suitable name for the service and then enter
the port numbers required for that service. (
Figure 47
)
Figure 47
Custom Setup Screen
4
Click
Add
to save the settings.
The port numbers are specified using a comma-separated list, with
hyphens to denote port number ranges. So for example, entering
2, 3,
5-7
would cause ports 2, 3, 5, 6, and 7 to be activated.
Special Applications
Figure 48
Special Applications Screen
Select
Special Applications
tab to display
Authorized Application
setup
screen. (
Figure 48
)
Some software applications require special or multiple connections to the
Internet and these would normally be blocked by the firewall. For
example Internet Telephony or Video conferences require multiple
connections.
So that these special applications can work properly and are not blocked,
the firewall needs to be told about them. In each instance there will be a