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Firewall 59
To manually enter the port information:
1 Specify the trigger port (the one used by the application when it is
initialized) in the Trigger Port column, and specify whether the trigger is
TCP or UDP.
2 Specify the Public Ports used by the application, that will need to be
opened up in the firewall for the application to work properly. Also
specify whether these ports are TCP or UDP.
3 Click Apply.
Virtual Servers The Virtual servers feature allows you to route external (Internet) calls for
services such as a web server (port 80), FTP server (Port 21), or other
applications through your Router to your internal network. Since your
internal computers are protected by a firewall, machines from the
Internet cannot get to them because they cannot be 'seen'.
If you need to configure the Virtual Server function for a specific
application, you will need to contact the application vendor to find out
which port settings you need.
The maximum number of virtual servers that can be configured is 20.
Figure 48 Virtual Servers Screen
To configure your virtual servers:
1 Click Add, or Edit if you want to edit an existing record.
2 Enter the IP address in the space provided for the internal machine.