iBall Baton iB-WVG300N User Manual page 64

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Protocol: You may select TCP/UDP, TCP, or UDP in the drop-down list.
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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.
Step 2 After finishing setting, click Save/Apply to save and apply the settings.
6.2.5.2 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 remove an entry of port triggering.
Click the Add button to display the following page.
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VDSL2 Gateway Router