User's Manual

GAN5.PT156A-B
57
Port Triggering
Some applications need some ports to be opened in the firewall for the remote
access. When an application initializes a TCP/UDP to connect to a remote user, port
triggering dynamically opens the open ports of the firewall.
Choose Advanced Settings > NAT > Port Triggering, and the following page
appears.
Figure 17 Port triggering setup
In this page, you may add or delete an entry of port triggering.
Click the Add button to display the following page.
Figure 18 Adding an entry of port triggering
Use interface: Select an interface that you want to configure.
Select an application: Select a proper application in the drop-down list.
Custom application: Manually define an application.