Re: draft-ietf-6man-rfc4291bis-06: RFC4941 and comment on stable addresses

Lorenzo Colitti <lorenzo@google.com> Mon, 23 January 2017 08:11 UTC

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From: Lorenzo Colitti <lorenzo@google.com>
Date: Mon, 23 Jan 2017 17:10:53 +0900
Message-ID: <CAKD1Yr3wsr2b-W6LOmW7m5jAmJZh6y=CGJ99OdBDfruvHEavoQ@mail.gmail.com>
Subject: Re: draft-ietf-6man-rfc4291bis-06: RFC4941 and comment on stable addresses
To: Fernando Gont <fgont@si6networks.com>
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On Mon, Jan 23, 2017 at 3:28 PM, Fernando Gont <fgont@si6networks.com>
wrote:

> This document is a bis document, which is not expected to change
> anything, right?
>

And it doesn't. Whether RFC 4941 is cited in this document or not doesn't
change the normative effects of this document, since it's only provided as
an example.


> RFC4291 was only about stable addresses. Hence referencing temporary
> addresses can be misleading. For instance, RFC4291 does 4291 does not
> contain any references to RFC3041.
>

RFC 4291 is not just about stable addresses, it's about all addresses
(multicast, unicast, stable, unstable, manual, autoconfigured, random,
...). It says that "all unicast addresses [...][are] constructed in
modified EUI-64 format". That includes RFC 4941 privacy addresses, which
are in modified EUI-64 format (they set bit 6 to 0).