> "64bit MAC" -- which pretty much exists nowhere. It's a repeat of the > mistakes from IPv4's early days: CLASSFUL ROUTING. > > I'm with you. I wish vendors and spec designers would just get over it > and let people subnet however they want.
you can. there was a bit of a war in the ietf some years back, and yhe 64 bit boundary is a convention. hardware must route and forward on 128 bits. do other than 64 and you do not get auto-conf. some do not consider this a loss, others do. > So far, Cisco's gear is the only IPv6 routers I've messed with. And > they will not let you set an interface to anything smaller than a /64. i wonder what strange gear you tried. all routers, cisco and other, i play with operate on 128 bits. randy
