Netgear WNR2500 - N450 Wireless Router 사용자 설명서

When you access your router from the Internet, type your router’s WAN IP address in your 
browser’s address or location field followed by a colon (:) and the custom port number. For 
example, if your external address is 203.0.113.123 and you use port number 8080, enter 
http://203.0.113.123:8080 in your browser. 

Universal Plug and Play (UPnP) helps devices, such as Internet appliances and computers, 
to access the network and connect to other devices as needed. UPnP devices can 
automatically discover the services from other registered UPnP devices on the network.

If you use applications such as multiplayer gaming, peer-to-peer 
connections, or real-time communications such as instant 
messaging or remote assistance, enable UPnP.

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Select ADVANCED > Advanced Setup > UPnP. 

A screen similar to the following displays:

Select the Turn UPnP On check box.