When the CNAME refers to a name that is out of zone and the target zone is below a zone that the server serves you will have CNAME (DNAME) + referral. 4.3.2 loops.
pass 1 -> 3a (adds CNAME, AA is set as it matches the question section, QNAME is updated). pass 2 -> 3b (we have a partial match with a bottom of zone cut which adds the referral). > On 29 Nov 2017, at 1:03 pm, Andrew Sullivan <a...@anvilwalrusden.com> wrote: > > Hi Mark, > > On Wed, Nov 29, 2017 at 12:57:26PM +1100, Mark Andrews wrote: >> You can answer only responses, you can have referral only responses, >> you can partial answer + referral responses. > > Where in the algorithm in section 4.3.2 of 1034 (or other, derived > cases like DNAME) is this "partial answer + referral responses" > described? If this is well-defined somewhere, I want to refer to it. > If it is not, I wish to describe it clearly, because it seems pretty > obvious given the amount of discussion we've had on this topic that > the notion of referral is nowhere near as clear as people seem to > think it is. I'm not sure I understand your cryptic remark above, but > I am certain I can't make it more comprehensible to others without > you telling me that I'm wrong and need to do it over. So I'm > appealing to you to try to make your view as clear as possible. > > Best regards, > > A > > -- > Andrew Sullivan > a...@anvilwalrusden.com > > _______________________________________________ > DNSOP mailing list > DNSOP@ietf.org > https://www.ietf.org/mailman/listinfo/dnsop -- Mark Andrews, ISC 1 Seymour St., Dundas Valley, NSW 2117, Australia PHONE: +61 2 9871 4742 INTERNET: ma...@isc.org _______________________________________________ DNSOP mailing list DNSOP@ietf.org https://www.ietf.org/mailman/listinfo/dnsop