[dns-operations] FlagDay 2020 UDP Size

jack tavares tavares at gmail.com
Mon Aug 3 17:20:30 UTC 2020

I am asking for a clarification on the recommended default settings for
Resolvers etc.

I understand that the default setting should be 1232.

But what is not clearly laid out, in my opinion, is if;
a client sends a larger EDNS buffer size, what should the resolver do?

Currently the resolvers i work with have a max of 4096 by default, and will
respect a LOWER limit
from a client, but cap the response at 4k.

Is it ok to go higher, if we set the default at 4k?

Thank you
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.dns-oarc.net/pipermail/dns-operations/attachments/20200803/817d0973/attachment.html>

More information about the dns-operations mailing list