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

Gert Doering <gert@space.net> Fri, 24 February 2017 07:59 UTC

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Date: Fri, 24 Feb 2017 08:59:40 +0100
From: Gert Doering <gert@space.net>
To: Pierre Pfister <pierre.pfister@darou.fr>
Subject: Re: [v6ops] draft-ietf-6man-rfc4291bis prohibiting non-/64 subnets
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Hi,

On Thu, Feb 23, 2017 at 11:43:52PM +0100, Pierre Pfister wrote:
> >>>                                          However, the Interface ID of
> >>>   all unicast addresses, except those that start with the binary value
> >>>   000, is required to be 64 bits long.
> >> 
> > 
> > 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.

The point is not "specific rule for ::/3".  The point is that this is a
explicit rule for all that is *not* ::/3, with an exception(!) for ::/3.

... and still there are other RFCs that permit /126 and /127, so this
definitely needs rewording to match current reality.

Gert Doering
        -- NetMaster
-- 
have you enabled IPv6 on something today...?

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