User's Manual

User Manual
74
Protocol: You may select TCP/UDP, TCP, or UDP in the drop-down list.
Internal Port Start: When selecting a service, the port number will
automatically be displayed. You can modify it if necessary.
Internal Port End: When selecting a service, the port number will
automatically be displayed. You can modify it if necessary.
After finishing setting, click Save/Apply to save and apply the settings.
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.
In this page, you may add or delete an entry of port triggering.
Click the Add button to display the following page.