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Re: DHCPv6 address used when M or O bit is set

JINMEI Tatuya / 神明達哉 <jinmei@isc.org> Wed, 04 April 2012 20:53 UTC

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Date: Wed, 04 Apr 2012 13:52:57 -0700
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From: JINMEI Tatuya / 神明達哉 <jinmei@isc.org>
To: Dominik Elsbroek <dominik.elsbroek@gmail.com>
Subject: Re: DHCPv6 address used when M or O bit is set
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At Wed, 4 Apr 2012 16:38:45 +0200,
Dominik Elsbroek <dominik.elsbroek@gmail.com> wrote:

> > What's removed is the corresponding text, not the bits. See page 19 of
> > RFC 4861: the bits are still there.
> 
> In RFC4862, Appendix C there is one point:
> 
> Removed the text regarding the M and O flags, considering the
>       maturity of implementations and operational experiences.
>       ManagedFlag and OtherConfigFlag were removed accordingly.  (Note
>       that this change does not mean the use of these flags is
>       deprecated.)
> 
> Not sure how to interprete this. Perhapts I am just missing a link,
> but M and O flag in RFC 4861 doesn't tell how to do SLAAC, e.g. when
> the nameserver should be determined by DHCPv6-server.

As clearly noted, "removed" doesn't mean these flags were deprecated
in the protocol.  They were simply removed from the RFC4862 text as an
out-of-scope item for that particular RFC (and the assumption was they
should be standardized in other documents).

---
JINMEI, Tatuya
Internet Systems Consortium, Inc.

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