Re: [DNSOP] Clarifying referrals (#35)

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 <ajs@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
> ajs@anvilwalrusden.com
> 
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-- 
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742              INTERNET: marka@isc.org