> 1. Section 2.2.3 looks like a complete re-production of RFC 5952, but > I don't see a reference to 5952. Is the intent to deprecate 5952 since > its content is now contained within 4291bis? 5952 has much more very useful detail for those of us who write software to parse, compare, ... textual representations of ipv6 addresses, see section 4 of 5952. so i suggest the replacement of 2.2 with a reference to 5952. it is very cheering to see section 2.4.0, "96 more bits no magic" [credit gaurab]. but i am having a hard time reconciling 2.4.4's insistence on a mandatory 64-bit uuid in all unicast global addresses with 2.4.0, rfc 6141, widespread operational practice, ... clue bat please. randy