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@cks That “give each customer a /64 prefix” thing was the first big IPv6 fight I remember breaking out in V6OPS, because the address architecture originally said “give each customer a whole /48, so they basically never ever need to renumber until they become a transit provider” and CableLabs / Broadband Forum / et al basically said, “Why do we have to give them a whole /48 when we’re just going to renumber them at will and never let them run their own routing domains anyway?”

Some of them compromised and said “okay we’ll give them a /60 or maybe even a /56 if we’re especially generous” and then sabotaged every possible effort to make it possible for their customers to have anything other than a single /64.