[Dnsmasq-discuss] Corrupted query causing FORMERR?

[Geert Stappers]

On Fri, Aug 18, 2023 at 09:59:40AM +0000, John Horne wrote:
> On Thu, 2023-08-17 at 17:08 +0000, John Horne wrote:
> >
> > Things tried include, disabling the 'edns0' option in the /etc/resolv.conf
> > file; setting the max UDP packet size to 1232; setting the max UDP packet
> > size to 512; using dnsmasq version 2.89. These all failed in that we still
> > received FORMERR replies.
> > The only option so far that has worked is to disable the use of dnsmasq via
> > 127.0.0.1, and let each server send queries direct to the Unbound server.
> > This has caused no FORMERR replies.
> >
> I should add that I have now tried running dnsmasq but with the caching
> disabled. That too works (using the same simple test used before),

Consider to describe "the same simple test used before" in a clear way
so it can be reproduced elsewhere.


> so it looks like some issue with the caching part of dnsmasq.

Consider to tell more about the cache usage.


Groeten
Geert Stappers
-- 
Silence is hard to parse