Universal Plug and Play (UPnP) is a protocol that lets UPnP-enabled devices on your network to automatically discover and communicate with each other, as well as create more direct channels of communication with the Internet.
This field displays all UPnP-enabled devices on your network.
Click Firewall > UPnP. The following screen displays.
The following table describes the labels in this screen.
Enable to turn UPnP on.
Disable to turn UPnP off.
Transmission Control Protocol (TCP)
User Datagram Protocol (UDP)
Both TCP and UDP (TCP/UDP)