[dns-operations] Anyone from Google here?

Robert Evans evansr at google.com
Mon May 11 17:41:54 UTC 2020

On Fri, Apr 17, 2020 at 1:23 PM Robert Evans <evansr at google.com> wrote:

> On Fri, Apr 17, 2020 at 2:00 AM Mark Andrews <marka at isc.org> wrote:
>> Can you please explain why your servers are returning NOTIMP
>> for unknown types outside of the range reserved for meta types (128-255)?
>> The RFC compliant rcode is NOERROR for names that exist and NXDOMAIN for
>> names that do not exist.  See RFC3597.
> Hey Mark,
> Not sure the motivation for why the server does that, but I agree it
> should be NOERROR or NXDOMAIN for all RTYPEs that don't exist including
> unknown ones. We're looking into this and will get back to you.

Following up here: I've confirmed this behavior is an oversight and will be
corrected in an upcoming server release.


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