I've poked through everything that seemed relevant.

I know it's easy to get the IP for uploaders. Do a search, find a suspect file then browse host.

What I was most curious about was how anyone could monitor downloaders? The only easy way I can figure is to set up ultrapeers and log all traffic. Even then I'm not sure that would be much help. When someone clicks to download... a direct P2P connection is set up and the ultrapeer is out of the loop, right? That's really not proof anyone downloaded that file... only that they started to.

I'm new to P2P. What am I missing?

Thanks!