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If UPnP groupware are installed in the host in LAN and UPnP function is enabled for the Router, the

host in LAN can automatically open the corresponding port to allow the UPnP application in WAN to

access the resource of the host in LAN via this port, so that the functions limited to NAT can work

normally. For example, MSN Messenger installed in Windows XP and Windows ME system is using

UPnP protocol when audio and video communications are processing.

On this page you can configure UPnP service.

Choose the menu Services→UPnP to load the following page.

Figure 4-68 UPnP

The following items are displayed on this screen:

¾ General

UPnP Function: Enable or disable the UPnP function globally.

¾ List of UPnP Mapping

After UPnP is enabled, all UPnP connection rules will be displayed in the list of UPnP Mapping.

The NO.1 entry in Figure 4-68 indicates: TCP data received on port 12856 of the WAN port in

the Router will be forwarded to port 12856 in 192.168.0.101 server in LAN.

Note:

● When using UPnP function, make sure the UPnP is enabled for the Router, and the operating

system and applications in the host support UPnP service.

● As some Trojan and viruses can open the specific port using UPnP service resulting in hacker

attack on the host, be careful of using UPnP service.