On 17 Sep 2012, at 13:28, John Mitchell <[email protected]> wrote:
> <snip> > > Given that the first 3 bits of a public IPv6 address are always 001, giving > > /48 allocations to customers means that service providers will only have > > 2^(48-3) or 2^45 allocations of /48 to hand out > to a population of > > approximately 6 billion people. 2^33 is over 8 billion, so assuming a > > population of 2^33, there will be enough IPv6 /48 allocations to cater for > > 2^(45-33) or 2^12 or 4096 IPv6 > address allocations per user in the world." > </snip> It seems a tad unfair that the bottom 80 bits are squandered away with a utilisation rate of something closely approximating zero; yet the upper 48 bits are assumed to have zero wastage... Regards, aid
