Draytek Vigor 2110 Series User Manual page 142

Windows XP and the router provide the associated support for MSN Messenger to allow full
use of the voice, video and messaging features.
Enable UPNP Service
After setting Enable UPNP Service setting, an icon of IP Broadband Connection on Router
on Windows XP/Network Connections will appear. The connection status and control status
will be able to be activated. The NAT Traversal of UPnP enables the multimedia features of
your applications to operate. This has to manually set up port mappings or use other similar
methods. The screenshots below show examples of this facility.
The UPnP facility on the router enables UPnP aware applications such as MSN Messenger to
discover what are behind a NAT router. The application will also learn the external IP address
and configure port mappings on the router. Subsequently, such a facility forwards packets from
the external ports of the router to the internal ports used by the application.
Accordingly, you can enable either the Connection Control
Service or Connection Status Service.
134 Vigor2110 Series User's Guide