The Choice: IPv4 Exhaustion or Transition to IPv6
stephen at sprunk.org
Thu Jun 28 23:15:29 UTC 2007
Thus spake "Iljitsch van Beijnum" <iljitsch at muada.com>
> The Comcasts of this world burn addresses by the millions. If they can't
> have new ones for (almost) free, they'll have to stick multiple customers
> behind a single IPv4 address. If you have to share your IP address with
> several of your neighbors, it becomes attractive to add IPv6 to the mix
> to make peer to peer stuff, including VoIP, work more reliably. QED.
More likely, one day $BIG_ISP is going to go to ARIN with justification for
another /12 or so and they're going to get a few hundred /20s instead
because that's all that's left. Lather, rinse, repeat, and watch the v4 DFZ
implode. This will happen _before_ RIR exhaustion hits.
Hopefully, the $BIG_ISP folks of the world see this coming and are starting
to tell CPE vendors that they will not buy/resell anything that doesn't do
v6 after some fixed date. The abject lack of v6 support in ISP-supplied CPE
devices shows that if they are, that date is not yet imminent.
It's great we all have v6-capable hosts and core routers now, but that isn't
enough; it's the CPE boxes (firewalls, DSL modems, etc.) that're going to
eat us all alive in 3-4 years if things don't change Real Soon Now(tm).
Kudos to Apple for being the first vendor to wake up; let's hope the others
follow their lead in time to make a difference.
Stephen Sprunk "Those people who think they know everything
CCIE #3723 are a great annoyance to those of us who do."
K5SSS --Isaac Asimov
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