[Unbound-users] AD bit set for NXDOMAIN but should not?

W.C.A. Wijngaards wouter at NLnetLabs.nl
Tue Mar 1 16:25:04 UTC 2011


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Hi David,

On 03/01/2011 04:11 PM, David Blacka wrote:
>> According to section 9.2, unbound *isn't* correct -- if the covering NSEC3 RR has the opt-out bit set, you don't set AD.  This doesn't change the proof -- you see the same NSEC3 RRs regardless.

Yes

>> No.  There is no separate 'insecure' NXDOMAIN proof.  The only response that is constructed differently due to the opt-out bit is the insecure referral (instead of a matching NSEC3, there is a closest encloser NSEC3 and a NSEC3 covering the next closer name which MUST have the opt-out bit set.)

Yes, I was wrong about that in the email you quote.

Best regards,
   Wouter
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