[AusNOG] RFC7278 - "Extending an IPv6 /64 Prefix from a Third Generation Partnership Project (3GPP) Mobile Interface to a LAN Link"

[Mark Andrews]

In message <1404305495.3159.205.camel at karl>, Karl Auer writes:
> On Wed, 2014-07-02 at 22:28 +1000, Joseph Goldman wrote:
> > I understand the vastness of the IPv6 address space, and to be fair, the 
> > same words were likely uttered a couple decades ago with IPv4
> 
> Only in the same way as a past head of IBM said that the market for
> computers was "about seven" and Alexander Grahame Bell opined it
> possible that one day every city might have a telephone.
> 
> >    1) (and probably most importantly) a lot of IPv6 features rely on a 
> > subnet size of /64 (SLAAC given as the example)
> 
> Actually, SLAAC is pretty much the *only* thing that works only
> with /64s by definition. While the IPv6 host subnet size is standardised
> at /64, for many good reasons, anything apart from SLAAC that fails to
> work with longer or shorter prefixes is broken and should be fixed.
> 
> > It's mind boggling to think, how many /64's I can essentially hand out 
> > with my single allocation of /32. If I'm not mistaken, there are as many 
> > /64's in a /32, as there is IPv4 address' available in total?!
> 
> Yup. Cool, isn't it.
> 
> Regards, K.

And you should be thinking about /56 or /48 as a ISP and request space based
on that calculation from from the RIRs.  /32 is a bare minimum.
 
> -- 
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> Karl Auer (kauer at biplane.com.au)
> http://www.biplane.com.au/kauer
> http://twitter.com/kauer389
> 
> GPG fingerprint: EC67 61E2 C2F6 EB55 884B E129 072B 0AF0 72AA 9882
> Old fingerprint: B862 FB15 FE96 4961 BC62 1A40 6239 1208 9865 5F9A
> 
> 
> _______________________________________________
> AusNOG mailing list
> AusNOG at lists.ausnog.net
> http://lists.ausnog.net/mailman/listinfo/ausnog
-- 
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: marka at isc.org