Netgear WNR2500 - N450 Wireless Router 사용자 설명서

The following points summarize the differences between port forwarding and port triggering:

Any computer on your network can use port triggering, although only one computer can 

use it at a time.

Port forwarding is configured for a single computer on your network.

Port triggering does not require that you know the computer’s IP address in advance. The 
IP address is captured automatically.

Port forwarding requires that you specify the computer’s IP address during configuration, 
and the IP address can never change.

Port triggering requires specific outbound traffic to open the inbound ports, and the 
triggered ports are closed after a period of no activity.

Port forwarding is always active and does not need to be triggered.

Using the port forwarding feature, you can allow certain types of incoming traffic to reach 
servers on your local network. For example, you might want to make a local web server, FTP 
server, or game server visible and available to the Internet.

To configure the router to forward specific incoming protocols to computers on your local 
network, use the Port Forwarding screen. In addition to servers for specific applications, you 
can also specify a default DMZ server to which all other incoming protocols are forwarded.

Before starting, you must determine which type of service, application, or game you want to 
provide, and the local IP address of the computer that should provide the service. The server 
computer must always have the same IP address.

To ensure that your server computer always has the same IP address, 
use the reserved IP address feature (see 

53) of your router. 

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Select Advanced Setup > Port Forwarding / Port Triggering.