>> Objecting to it, calling it "classful", is implying that it is >> exactly the same as IPv4 classful addressing. I don't think IPv6 is. > > Perhaps not precisely the same, because there are no 'IPv6 classes'. > > But, an IPv4 Class C is quite the same as an IPv6 prefix/64. The limit > is 24bit in IPv4, and 64bit in IPv6. True, the forwarding in IPv6 is on > bit-boundary where classful IPv4 is on byte-boundary, yet an otherwise > bit-boundary IPv6 _>/64_ route can not reach computers relying on > SLAAC/Ethernet /64. > > That makes it a limit, which in turn generates what appears to be an > 'IPv6 class' - the leftmost 64bits. Having a single class does not make it classful. If you want the 64-bit boundary changed. This is not the right context for it. Write a draft. Justify why 64-bits of prefix isn't enough for you. Ole
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