External Port/ Internal Port: If you are only forwarding one port, you can put the same port number in both the Start and End Port boxes.
Protocol: If you are not sure which protocol to choose, select both.
To IP Address: This should be the IP address of the computer you want to forward the ports to.
Make sure that you check the Enabled box to activate the setting, then click Apply to save the settings.
6.5.3 Applications & Gaming > Port Range Triggering
Port triggering allows the router to keep track of outgoing data for specific port numbers. The router remembers which computer sends out what data, so when the requested data returns through the router, the data is sent back to the proper computer by way of IP address and port mapping rules.
Application Name: Enter an Application Name of the trigger.
41