Re: new DS draft question

gson@nominum.com (Andreas Gustafsson) Fri, 08 March 2002 18:33 UTC

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Date: Fri, 08 Mar 2002 09:52:54 -0800
To: Ólafur Guðmundsson <ogud@ogud.com>
Cc: Brian Wellington <Brian.Wellington@nominum.com>, namedroppers@ops.ietf.org
Subject: Re: new DS draft question
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[ post by non-subscriber ]

ogud@ogud.com writes:
> Q1: Is there any practical use for NXT in any positive answer ?

There is not only a use, but a requirement.  RFC2535 section 5.3 says
that wildcard expansions (which are positive answers) MUST have NXTs:

5.3 Additional Complexity Due to Wildcards
   [...]
   Furthermore, if a wildcard expansion is returned in a response, in
   general one or more NXTs needs to also be returned in the authority
   section to prove that no more specific name (including possibly more
   specific wildcards in the zone) existed on which the response should
   have been based.

-- 
Andreas Gustafsson, gson@nominum.com


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Re: new DS draft question Andreas Gustafsson