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Re: [dnssd] [DNSOP] QDCOUNT > 1 (a modest proposal)

Paul Vixie <paul@redbarn.org> Mon, 13 February 2023 02:49 UTC

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To: Ted Lemon <mellon@fugue.com>
Cc: dnssd <dnssd@ietf.org>
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From: Paul Vixie <paul@redbarn.org>
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Subject: Re: [dnssd] [DNSOP] QDCOUNT > 1 (a modest proposal)
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Ted Lemon wrote on 2023-02-12 11:11:
> On Sun, Feb 12, 2023 at 12:30 PM Paul Vixie <paul@redbarn.org 
> <mailto:paul@redbarn.org>> wrote:
> 
>     Ted Lemon wrote on 2023-02-12 08:04:
>      > I hear you, and I'm not sure you're wrong, but hear me out here
>     for a
>      > moment: at present, QDCOUNT > 1 is 100% allowed by the protocol
>      > specification, without any changes. I can already send a DNS message
>      > with more than one query.
> 
>     since i don't know of any implementation that will process same, i
>     think
>     that your right under the protocol specification to send such a
>     thing is
>     undifferentiating. 
> 
> 
> Ah, but in fact the reason I started this discussion is that 
> OpenThread's recursive resolver does support this behavior, and their 
> client depends on it working. ...

well if you have deployed code and merely want to clarify the DNS 
specification as to what QDCOUNT>1 means and constrain it to be 
same-qname, i don't think anyone will object.

however, ray bellis just answered your original note (sent to dnsop) 
with this expired draft from 2017, which i do not remember but may have 
been bogarting with the proposal i made here yesterday:

draft-bellis-dnsext-multi-qtypes-04

-- 
P Vixie

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