In your previous mail you wrote: I am looking at doing some IPv6 routing and I'm wondering what the status of the various routing protocols is: 1) RIP is working I've been told (but I don't want to use it) 2) Is BGP working/defined? 3) What about IS-IS? 4) Who is doing production v6 routing at the moment? => today you have: - for IGPs: * RIPng (still very used) * OSPFng (only some implementations but should replaced RIPng) * (integrated) IS-IS (IS-IS can deal with any protocol but I don't know a working/used implementation of IS-IS for IPv6) - for EGPs: * BGP4+ (used by almost everybody) * (integrated) IDRP (only one implementation) - for multicast: * PIM (dense and sparse mode) Today RIPng and BGP4+ are the most used protocols on Unix boxes (with free router daemons like gated, mrt, zebra, ...) and standard routers (Cisco has an experimental code which should become a supported product soon). I believe you can find some stats in 6bone documents... Francis.Dupont@enst-bretagne.fr