It might be a sidetrack on the discussion but I'll answer anyway On Fri, Feb 22, 2013 at 10:11 PM, james woodyatt <[email protected]> wrote: > On Feb 22, 2013, at 06:16 , Michael Richardson <[email protected]> wrote: >> >> If the ISP with the longest prefix is alive first, then the routers >> pick subnet-id parts that fit into that. If that ISP has provided >> enough subnets, then even when another ISP comes along, the "xx23" >> part might remain stable for a long time. > > This problem is precisely why I campaigned bitterly and vigorously against > the adoption and V6OPS and later the publication of RFC 6177. > > When there was still a consensus that subscribers should always get a /48 > prefix, it was reasonable to expect that a randomly chosen 16-bit subnet > identifier would be unlikely to collide with another subnet in most > automatically numbered routing domains. We were also in a position to expect > that when a subscriber adds a new prefix from the same or a different > provider, that all the subnet identifiers in use on one prefix could be > mapped 1:1 into the new prefix. Now we have RFC 6177, which explodes all of > that, for basically no sensible reason that I can see, and we are all the > poorer for it. > > Well done, V6OPS, well done.
As Brian said, it just reflect what RIR already has in place. I was one of those that suggested and argued for the possibility of using /56 for end-users, not only /48. However I still believe /48's are great and I use it for most end-SITES. For end-USERS a /48 is quite an overkill almost any way you consider it, except if you look at it from a very overall point of view like in the situation this mail-thread is about. 256 /64 is more than enough for almost all end-user cases I can dream up. If any end-user have a setup where 256 LAN segments ain't enough, well then it's so big that it should be consider a end-site and we are back to /48. The use case for homenet are those end-users, not end-sites. Or? -- Roger Jorgensen | ROJO9-RIPE [email protected] | - IPv6 is The Key! http://www.jorgensen.no | [email protected] _______________________________________________ homenet mailing list [email protected] https://www.ietf.org/mailman/listinfo/homenet
