On Tue, Aug 12, 2008 at 9:46 AM, Gregory Stark <stark@enterprisedb.com> wrote:
> "Mark Mielke" <mark@mark.mielke.cc> writes:
>
>> - Increased keyspace. Even if keyspace allocation is performed, an int4 only
>> has 32-bit of keyspace to allocate. The IPv4 address space is already over 85%
>> allocated as an example of how this can happen. 128-bits has a LOT more
>> keyspace than 32-bits or 64-bits.
>
> The rest of your points are valid (though not particularly convincing to me
> for most applications) but this example is bogus. The IPv4 address space is
> congested because of the hierarchic nature of allocations. Not because there
> is an actual shortage of IPv4 addresses themselves. There would be enough IPv4
> for every ethernet device on the planet for decades to come if we could
> allocate them individually -- but we can't.
Only because of NAT. There are a _lot_ of IP devices out there maybe
not billions, but maybe so, and 'enough for decades' is quite a
stretch.
merlin
