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Re: [v6ops] draft-ietf-6man-rfc4291bis prohibiting non-/64 subnets

Lorenzo Colitti <lorenzo@google.com> Fri, 24 February 2017 03:28 UTC

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From: Lorenzo Colitti <lorenzo@google.com>
Date: Fri, 24 Feb 2017 12:27:55 +0900
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Subject: Re: [v6ops] draft-ietf-6man-rfc4291bis prohibiting non-/64 subnets
To: Pierre Pfister <pierre.pfister@darou.fr>
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Cc: IPv6 Operations <v6ops@ietf.org>, Mark Smith <markzzzsmith@gmail.com>, IETF <ietf@ietf.org>
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On Fri, Feb 24, 2017 at 7:43 AM, Pierre Pfister <pierre.pfister@darou.fr>
wrote:

> > The thing is this is not new text, it has been in RFC4291 for 11
> > years. c.f., 2.5.1.
>
> And during those 11 years. Nobody implemented this rule specific to ::/3.
>

I can implement it today in some of our code if you like :-). But it seems
unlikely to make a difference, since the rule only applies to unicast
addresses in ::/3, and no such addresses have been released to the RIRs.
That in turn is unlikely to change until we run out of 2000::/3, and even
then we'll likely move on to allocating addresses out of 4000::/3 instead
of from ::/3.

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