Netgear WNR2000v2 - N300 Wireless Router 사용자 설명서

Fine-Tuning Your Network

5-10

Port triggering is a dynamic extension of port forwarding that is useful in these cases:
•

More than one local computer needs port forwarding for the same application (but not 
simultaneously).

•

An application needs to open incoming ports that are different from the outgoing port.

When port triggering is enabled, the router monitors outbound traffic looking for a specified 
outbound “trigger” port. When the router detects outbound traffic on that port, it remembers the IP 
address of the local computer that sent the data. The router then temporarily opens the specified 
incoming port or ports, and forwards incoming traffic on the triggered ports to the triggering 
computer. 

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 

).

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 

.