Re: [DNSOP] [Doh] [EXTERNAL] Re: New I-D: draft-reid-doh-operator

Ted Lemon <mellon@fugue.com> Mon, 25 March 2019 15:16 UTC

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From: Ted Lemon <mellon@fugue.com>
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Date: Mon, 25 Mar 2019 16:16:25 +0100
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Cc: "doh@ietf.org" <doh@ietf.org>, "dnsop@ietf.org" <dnsop@ietf.org>
To: Tony Finch <dot@dotat.at>
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Subject: Re: [DNSOP] [Doh] [EXTERNAL] Re: New I-D: draft-reid-doh-operator
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On Mar 25, 2019, at 4:04 PM, Tony Finch <dot@dotat.at>; wrote:
> If I understand it correctly, DTLS leaves MTU and fragmentation up to the
> application protocol. The DNS has horrible packet size problems, so it
> needs a lot more help than DTLS provides. QUIC is much better.

Indeed.   My point was simply that this avoids ordering problems, just as QUIC does.   I suspect that it is worth having DNS-over-DTLS; QUIC is great, but based on what I’ve been seeing, quite a lot, and probably not appropriate for a lot of use cases where DNS-over-DTLS would do just fine.