uPNP

Why is there no general purpose uPNP client for Linux? I've had a look at the sample clients provided with SDK by Intel, to no avail. I noticed that my windows machine is able to see my wrt54g as an "Internet Gateway Device", which allows the windows machine to monitor the traffic going through the wrt. I naturally assumed something similar would be possible under Linux, but all I can find are media browsers. Fail. Perversely, there is a package in apt that allows a Linux box to *act* as an Internet Gateway Device. I may have to break out the packet sniffer some idle evening and come up with my own solution.

UPDATE: After some further googling, I've uncovered MiniUPnP, the source of which contains a client called upnpc (both static and dynamic versions). From this I should be able to create some form of gkrellm module that will do the job. Win.