Current Consensus on IPv6 Customer Allocation Size
gert at space.net
Thu Aug 2 12:44:44 CEST 2012
On Thu, Aug 02, 2012 at 12:31:19PM +0200, Mikael Abrahamsson wrote:
> On Thu, 2 Aug 2012, Mark Blackman wrote:
> > They're going to need a much bigger IPv6 allocation to give all ~2^26
> > customers a /48 allocation, and they can't even quite give them all a
> > /56 out of their current allocation.
> It gets interesting if every mobile device should get a /48 as well, then
> we're going to be spending a /14 on this (2^34 is 16G, 48-34=14.
Something tells me that you're not having 16 *billion* customers, but
more like 16 *million*. Right? That's 2^24, plus some :-) -> /24-ish
needed to give out /48s
I'm not sure I expect to see /48 (or /56, for that matter) on any
internet-enabled mobile device, though. Most of them will be happy
with a /64, as that's sufficient for providing WiFi access to your
Laptop... only "mobile routers" (like, LTE based connectivity for your
SoHo network, as an alternative to cable/dsl) will send DHCP-PD
requests with a bigger request size... but that's crystal balling,
> Question, with growth and room for efficient routing, I'd imagine people
> will need to start talking to their RIR to get larger subnets. Will the
> RIRs accept these calculations and approve these sizes?
The RIPE NCC will generally do so, if the calculations make sense. Up to
a /29 can be had without any calculations[*], just by asking for it - so
if you really need more, be prepared to have good numbers :-)
(*) and existing /32s can be extended up to a /29 by "just asking for it".
have you enabled IPv6 on something today...?
SpaceNet AG Vorstand: Sebastian v. Bomhard
Joseph-Dollinger-Bogen 14 Aufsichtsratsvors.: A. Grundner-Culemann
D-80807 Muenchen HRB: 136055 (AG Muenchen)
Tel: +49 (89) 32356-444 USt-IdNr.: DE813185279
More information about the ipv6-ops