Posted Jul 22, 2011 8:32 UTC (Fri) by anselm
In reply to: IPv6 NAT
Parent article: IPv6 NAT
I'm not convinced. The IPv4 routing tables are as big as they are because (a) various assumptions governing address allocation were flawed and couldn't really be corrected retroactively, and (b) people are generally not eager to renumber their whole network when they change providers just to simplify the default-free routing tables, hence »provider-independent addresses« for larger installations.
With IPv6, renumbering is much less of a hassle than with IPv4, and there are many more addresses available in the first place, so there's a good chance that the routing tables will not grow that much. They will probably grow some, but not by several orders of magnitude.
(Note: I don't claim to be an IPv6 guru, but I have this from a few people who do IPv6 for a living, and it makes sense to me.)
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