> > 2. Comcast only appears to have a /29 and a /28 (2001:558::/29, 2601::/28). > That's only 1.5M /48s, and they have about 10x that many customers. They > likely can't use /48 plus semantic prefixes, because if ARIN doesn't accept > "semantic prefixes" as using space efficiently (and word from ARIN on this > thread seems, well, negative on the matter), then they won't be able to get > more space from ARIN. That means that there is a fundamental tension between > using semantic prefixes and giving more address space to customers. >
It also means that Comcast has a dramatically undersized allocation and will most likely be depriving their customers. Owen -------------------------------------------------------------------- IETF IPv6 working group mailing list ipv6@ietf.org Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6 --------------------------------------------------------------------
