(posting this in the last call thread as well) I just came back from PTO not reading IETF email for 5-6 weeks, and read up on this thread. I just want to state my opinion that whatever text we come up with should reflect current operational reality, in that SLAAC A=1 only works on /64, and that people use all kinds of subnet sizes when manually configuring interfaces. If current code doesn't treat 000::/3 in any special case, then documents should reflect this. Mandating /64 only for any IPv6 use case doesn't reflect reality as I see it. I don't want to see A=1 /64 SLAAC requirement relaxed either. I just want the -bis document to reflect what is currently in the field and we know works. Nothing more, nothing less. -- Mikael Abrahamsson email: swmike@xxxxxxxxx