[dns-operations] CNAME into a delegated zone goes wrong.... any ideas?

[Jeroen Massar]

Hi,

Check this weird result:
8<------------------------------------------------------------------
$ dig @ns1.paphosting.net ntp.us.sixxs.net aaaa

; <<>> DiG 9.7.3 <<>> @ns1.paphosting.net ntp.us.sixxs.net aaaa
; (2 servers found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 8890
;; flags: qr rd; QUERY: 1, ANSWER: 1, AUTHORITY: 6, ADDITIONAL: 6
;; WARNING: recursion requested but not available

;; QUESTION SECTION:
;ntp.us.sixxs.net.		IN	AAAA

;; ANSWER SECTION:
ntp.us.sixxs.net.	3600	IN	CNAME	us.ntp.sixxs.net.

;; AUTHORITY SECTION:
ntp.sixxs.net.		3600	IN	NS	ns1.sixxs.net.
ntp.sixxs.net.		3600	IN	NS	ns2.sixxs.net.
ntp.sixxs.net.		3600	IN	NS	ns3.sixxs.net.
sixxs.net.		3600	IN	NS	ns.paphosting.net.
sixxs.net.		3600	IN	NS	ns.paphosting.nl.
sixxs.net.		3600	IN	NS	ns.paphosting.eu.

;; ADDITIONAL SECTION:
ns1.sixxs.net.		3600	IN	A	193.1.31.74
ns2.sixxs.net.		3600	IN	A	78.141.179.38
ns3.sixxs.net.		3600	IN	A	38.229.76.3
ns1.sixxs.net.		3600	IN	AAAA	2001:770:18:8::4
ns2.sixxs.net.		3600	IN	AAAA	2001:7e8:1:102::a
ns3.sixxs.net.		3600	IN	AAAA	2620:0:6b0:a:250:56ff:fe99:78f7

;; Query time: 4 msec
;; SERVER:
2001:7b8:3:47:20d:b9ff:fe14:70d4#53(2001:7b8:3:47:20d:b9ff:fe14:70d4)
;; WHEN: Sun Jun 12 23:35:18 2011
;; MSG SIZE  rcvd: 345
-------------------------------------------------------------------->8

What is the reason that the CNAME does not cause another query to
ns1.sixxs.net for the us.ntp.sixxs.net label?

One can query ntp.sixxs.net just fine, and also us.ntp.sixxs.net works
like a charm. But the CNAME seems to mess this up somewhere.

Anybody any idea? :)

Greets,
 Jeroen