[dns-operations] Is this valid edns0 query?

Mohamed Lrhazi Mohamed.Lrhazi at georgetown.edu
Fri Oct 10 18:33:50 UTC 2014


Unfortunately that is not a documented feature. I am waiting on their
support to figure out that they can do... it just silently drops the
packets, even when "query logging" is enabled, it does not even log them!

am very curious as to what this option even means... Who implements it?
BIND?

Mohamed.

On Fri, Oct 10, 2014 at 2:24 PM, Roland Dobbins <rdobbins at arbor.net> wrote:

>
> On Oct 11, 2014, at 1:07 AM, Mohamed Lrhazi <Mohamed.Lrhazi at georgetown.edu>
> wrote:
>
> > The appliance vendor, Google, tells me that edns0 opt code 20732 must be
> "the service name", whatever that means....
>
> I don't know what that means in the context of a non-SRV query . . . can
> you turn off the F5's 'malformed DNS query' scrubbing and see what happens?
>
> ----------------------------------------------------------------------
> Roland Dobbins <rdobbins at arbor.net> // <http://www.arbornetworks.com>
>
>                    Equo ne credite, Teucri.
>
>                           -- Laocoön
>
>
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