Looks like the website moved, I was going there to look up some more stuff.
The new home seems to be https://github.com/pali/igmpproxy
IGMPproxy is a simple dynamic Multicast Routing Daemon using only IGMP signalling. It's intended for simple forwarding of Multicast traffic between networks.
The project is no longer maintained actively by the original author. For a more up to date version (latest patches applied), please check out https://github.com/pali/igmpproxy
Looks like the website moved, I was going there to look up some more stuff. The new home seems to be https://github.com/pali/igmpproxy