Draytek Vigor2760 Series User Manual page 111

Triggering Protocol
Triggering Port
Incoming Protocol
Incoming Port
After finishing all the settings here, please click OK to save the configuration.
Select the protocol (TCP, UDP or TCP/UDP) for such
triggering profile.
Type the port or port range for such triggering profile.
When the triggering packets received, it is expected the
incoming packets will use the selected protocol. Select the
protocol (TCP, UDP or TCP/UDP) for the incoming data of
such triggering profile.
Type the port or port range for the incoming packets.
101 Vigor2760 Series User's Guide