Philip Homburg wrote: > I think the problem is that we don't know how to do 'proper' address > selection. I know and it's trivially easy. > It would be nice if 5 or 10 years ago there would have been a good > standard to do address selection. 11 years ago in draft-ohta-e2e-multihoming-00.txt, I wrote: End systems (hosts) are end systems. To make the end to end principle effectively work, the end systems must have all the available knowledge to make decisions by the end systems themselves. With regard to multihoming, when an end system want to communicate with a multihomed end system, the end system must be able to select most appropriate (based on the local information) destination address of the multihomed end system. which means an end system should have a full routing table, IGP metrics in which tell the end system what is the best address of its multihomed peer. Full routing table should and can, of course, be small. The approach is totally against node/router separation of IPv6 to make routers, the intermediate systems, a lot more intelligent than nodes, the end systems, which is partly why IPv6 is hopeless. Masataka Ohta _______________________________________________ Ietf mailing list Ietf@xxxxxxxx https://www.ietf.org/mailman/listinfo/ietf