>> and then next year we will go through another draft and have another >> exception. just get rid of classful addressing. we went through >> this in the '90s. > > The problem is (and why we wrote 7421) is that stuff breaks with > subnet prefixes longer than 64, *except* for the point-to-point case > covered by 6164. Yes, I see the problem in enshrining this but I think > we face signifcant issues if we do otherwise. > > What we could conceivably say is that /64 is mandatory except for > links where SLAAC will never be used. i have no problem with this. i use slaac in environments where ip assignment is unimportant and there is only one exit, such as my home networks. fwiw, in racks, i use static addressing for ipv6 because dhcpv6 is broken. randy