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Re: [DNSOP] Introducing draft-vavrusa-dnsop-aaaa-for-free

Florian Weimer <fweimer@redhat.com> Wed, 23 March 2016 19:09 UTC

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To: Paul Vixie <paul@redbarn.org>, Marek Vavruša <mvavrusa@cloudflare.com>
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From: Florian Weimer <fweimer@redhat.com>
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Date: Wed, 23 Mar 2016 20:09:13 +0100
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Subject: Re: [DNSOP] Introducing draft-vavrusa-dnsop-aaaa-for-free
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On 03/22/2016 01:15 AM, Paul Vixie wrote:
> 
> 
> Marek Vavruša wrote:
>> ...
>>
>> https://datatracker.ietf.org/doc/draft-vavrusa-dnsop-aaaa-for-free/
> 
> +1. we ought to have done this from the get-go.

It did not work back then because unexpected RRsets in the answer broke
resolvers.  This is how we got the DO flag, I think.

I doubt AAAA was any different from SIG in that regard, unknown is
unknown after all.

Therefore, technically, sending AAAA along should only be done for
replies to DO=1 queries because there is a reasonable expectation that
the recipient will be able to deal with unexecpted RRsets.

Florian

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