Just like 640k or memory :) On Fri, Apr 2, 2010 at 9:25 PM, Randy Bush <randy at psg.com> wrote: >> IPv6 as effectively reindroduced classful addressing. > > but it's not gonna be a problem this time, right? after all, > 32^h^h128^h^h^h64 bits is more than we will ever need, right? > > randy > >