Re: [DNSOP] Call for Adoption: draft-andrews-dnsop-glue-is-not-optional

Tim Wicinski <tjw.ietf@gmail.com> Wed, 03 June 2020 21:04 UTC

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From: Tim Wicinski <tjw.ietf@gmail.com>
Date: Wed, 3 Jun 2020 17:03:47 -0400
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To: Paul Vixie <paul@redbarn.org>
Cc: dnsop <dnsop@ietf.org>
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Subject: Re: [DNSOP] Call for Adoption: draft-andrews-dnsop-glue-is-not-optional
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All

The call for adoption ended on monday and this has enough consensus to be
adopted by the working group.

tim


On Thu, May 21, 2020 at 9:36 PM Paul Vixie <paul@redbarn.org> wrote:

> On Friday, 22 May 2020 00:31:34 UTC Masataka Ohta wrote:
> > ...
> >
> > While I'm not against the clarification, the draft should mention
> > that rfc1034 already states:
> >
> >     To fix this problem, a zone contains "glue" RRs which are not
> >     part of the authoritative data, and are address RRs for the servers.
> >     These RRs are only necessary if the name server's name is "below" the
> >     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> >     cut, and are only used as part of a referral response.
> >                  ^^^^^^^^^
> >
> > which means the glue RRs are necessary for a referral response.
> > Though not very obvious, it logically means that they MUST be
> > included as part of a referral response, because it is the only
> > reason to make them necessary.
>
> i agree. this is why later versions of BIND would return referrals rather
> than
> answers when queried for these names, which were in-bailiwick but
> below-zone.
> by implication, they can only be retrieved from the delegating server as
> part
> of a referral, and they will be in the additional section not the answer
> section even though they do match the qname. this distinction is also
> necessary in the assignment of credibility levels in the downstream cache.
>
> --
> Paul
>
>
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