Where Have the Unix RIP2 Daemons Gone?
Michael Gantz asks: "What are people using for RIP2 support under Unix? It looks very bleak out there; Mrt is sitting on SourceForge and appears to have not been maintained for some time. Gated has gone commercial. What's left? I realize RIP2 is not the most advanced protocol but it's very usefull in many situations."
Gated has indeed gone commercial, however the older free version is still available (check BSD archives).
Zebra, as has already been mentioned, does RIP2, among other things.
Bird is another alternative which does RIP2.
I personally prefer bird, because I want only OSPF (IPv4 and IPv6), so the extra weight of zebra is lost on me. (oo big to easily embed)
Paranoid
Bwaahahahahaa.