Advanced Settings
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N600 Wireless Dual Band Router WNDR3400v3
To allow access from a single IP address on the Internet, select Only This
Computer. Enter the IP address that allows access.
To allow access from a range of IP addresses on the Internet, select IP Address
Range. Enter a beginning and ending IP address to define the allowed range.
To allow access from any IP address on the Internet, select Everyone.
4. Specify the port number for accessing the web management interface.
Normal web browser access uses the standard HTTP service port 80. For greater
security, enter a custom port number for the remote web management interface. Choose
a number between 1024 and 65535, but do not use the number of any common service
port. The default is 8080, which is a common alternate for HTTP.
5. Click Apply to have your changes take effect.
When accessing your router from the Internet, type your router’s WAN IP address into
your browser’s address or location field followed by a colon (:) and the custom port
number. For example, if your external address is 134.177.0.123 and you use port number
8080, enter http://134.177.0.123:8080 in your browser.

USB Settings

For added security, the router can be set up to share only approved USB devices. See
Specify Approved USB Devices on page 57 for the procedure.

Universal Plug and Play

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.
Note: If you use applications such as multiplayer gaming, peer-to-peer
connections, or real-time communications such as instant messaging
or remote assistance (a feature in Windows XP), you should enable
UPnP.