It does not look like it: In wireshark, the only flag I see set in the query is dns.flags.recdesired In the response only these are set: dns.flags.response, dns.flags.authoritative, dns.flags.recdesired
I received, off list, a few more hints about things to check and test and hopefully tomorrow I'll find something :) Thanks all, Mohamed. On Sun, Mar 3, 2013 at 2:56 AM, Phil Pennock <[email protected]>wrote: > On 2013-03-02 at 19:06 -0500, Mohamed Lrhazi wrote: > > One, and only one specific query so far, is failing, systematically, like > > so, on a mail appliance of ours: > > > > > dig @69.36.158.33 mail.rwjf.org > > That DNS server is returning FORMERR when queried with an EDNS name > server ID (NSID) request (RFC 5001). > > Does the mail appliance provide a digrc file which is setting +nsid ? > > If you capture the full DNS packets off the wire and decode them, is > that option present? > > -Phil >
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