IPv6 Burgers (was: IPv6 Ignorance)

Mark Andrews marka at isc.org
Thu Sep 20 23:50:48 UTC 2012

In message <CAP-guGVaKSokeQEVX7aysEYQrr7g2ErREAAsXNwAyabQpqM5jw at mail.gmail.com>, W
illiam Herrin writes:
> Worse, that's if we were managing IPv6 delegations the way we manage
> IPv4 delegations. We're not. We're using sparse allocation. And 6RD.
> And default customer allocations of 65,000 LANs. And other interesting
> stuff that drastically increases the consumption characteristics.

6rd can be dense as native deployment.  In fact it is not hard to
do so and if you are using the shared /10 just allocated or RFC
1918 between you and your customers more than once simple map all
of IPv4 space does not work.

RFC 5969 does NOT say you must use 32 bits and actually lots of
examples where it isn't done.

> Nice burger. Om nom nom nom.
> Regards,
> Bill Herrin
> --=20
> William D. Herrin ................ herrin at dirtside.com  bill at herrin.us
> 3005 Crane Dr. ...................... Web: <http://bill.herrin.us/>
> Falls Church, VA 22042-3004
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: marka at isc.org

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