[v6ops] Re: Carrying large DNS packets over UDP in IPv6 networks

Daryll Swer <contact@daryllswer.com> Fri, 14 June 2024 12:11 UTC

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From: Daryll Swer <contact@daryllswer.com>
Date: Fri, 14 Jun 2024 17:40:25 +0530
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To: Suresh Krishnan <suresh.krishnan@gmail.com>
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Subject: [v6ops] Re: Carrying large DNS packets over UDP in IPv6 networks
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Hi Suresh

Just a question that I'm curious about. Has there ever been any research or
testing done, on any potential benefits of using UDP-Lite
<https://datatracker.ietf.org/doc/html/rfc3828> (which supports partial
checksum) instead of regular UDP (or the more complex QUIC) for a use-case
such as large DNS packets perhaps?

A long time ago, when I did basic UDP-Lite testing, I observed that it
traverse through (my small sample size) the DFZ and NAT boxes with no
problem.

*--*
Best Regards
Daryll Swer
Website: daryllswer.com <https://www.daryllswer.com>


On Fri, 14 Jun 2024 at 17:25, Suresh Krishnan <suresh.krishnan@gmail.com>
wrote:

> Hi all,
>   At the last 6man meeting in Brisbane, Jared Mauch brought up an issue
> with large DNS packets carried over UDP in IPv6 networks. Bob and I have
> written a draft recommending the use of TCP or QUIC for such large packets
> instead of UDP.
>
> https://datatracker.ietf.org/doc/draft-hinden-v6ops-dns/
>
> We would greatly appreciate your comments on this draft.
>
> Thanks
> Suresh
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