User's Manual

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3.1.2. Port Trigger
The “Advanced>NAT>Port Trigger” tab allows user to configure Port Trigger rules. Port Trigger
is a way to automate port forwarding in which outbound traffic on predetermined ports (‘trigger
port’) causes inboun d traf fic to spe cific incomi ng po rts to be dyn amically forwarde d to the
initiating host, while the outbound ports are in use. This allows users behind WiMAX outdoor
CPE on the LAN to provide se rvices t hat woul d no rmally re quire the com puter to have IP
address on the LAN. Port triggering triggers an open incoming port (‘open port’) when a client
on the local network makes an outgoing connection on a predetermined port or range of ports.
The definition for each field is shown on Table 9.
Figure 19 Advanced>NAT>Port Trigger