Wireless-N 150 Router WNR1000v3 User Manual 
Fine-Tuning Your Network 5-10
v1.0, February 2010
While port forwarding creates a static mapping of a port number or range to a single local 
computer, port triggering can dynamically open ports to any computer that needs them and can 
close the ports when they are no longer needed.
To configure port triggering, you need to know which inbound ports the application needs. Also, 
you need to know the number of the outbound port that will trigger the opening of the inbound 
ports. You can usually determine this information by contacting the publisher of the application or 
user groups or newsgroups.
To set up port triggering: 
1. Select Port Forwarding/Port Triggering under Advanced in the main menu. The 
Forwarding/Port Triggering screen displays (see Figure 5-1 on page 5-7).
2. Select the Port Triggering radio button. The port triggering information displays.
3. Clear the Disable Port Triggering check box.
Note: If you use applications such as multiplayer gaming, peer-to-peer connections, real-
time communications such as instant messaging, or remote assistance (a feature in 
Windows XP), you should also enable Universal Plug and Play (UPnP) according 
to the instructions in “Using Universal Plug and Play” on page 5-12.
Figure 5-4
Note: If the Disable Port Triggering check box is selected after you configure port 
triggering, port triggering is disabled. However, any port triggering 
configuration information you added to the router is retained even though it is 
not used.