Microsoft over IPv6?

[Fernando Gont]

Folks,

1) dig www.microsoft.com

; <<>> DiG 9.8.4-P1 <<>> www.microsoft.com aaaa
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 48311
;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;www.microsoft.com.		IN	AAAA

;; ANSWER SECTION:
www.microsoft.com.	3380	IN	CNAME	toggle.www.ms.akadns.net.
toggle.www.ms.akadns.net. 80	IN	CNAME	g.www.ms.akadns.net.
g.www.ms.akadns.net.	80	IN	CNAME	lb1.www.ms.akadns.net.

;; AUTHORITY SECTION:
akadns.net.		180	IN	SOA	internal.akadns.net. hostmaster.akamai.com.
1364426926 90000 90000 90000 180

;; Query time: 134 msec
;; SERVER: 71.252.219.43#53(71.252.219.43)
;; WHEN: Wed Mar 27 18:28:46 2013
;; MSG SIZE  rcvd: 170




2) dig www.ipv6.microsoft.com


; <<>> DiG 9.8.4-P1 <<>> www.ipv6.microsoft.com aaaa
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 18861
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 5, ADDITIONAL: 10

;; QUESTION SECTION:
;www.ipv6.microsoft.com.		IN	AAAA

;; ANSWER SECTION:
www.ipv6.microsoft.com.	3350	IN	AAAA	2002:836b:9820::836b:9886

;; AUTHORITY SECTION:
microsoft.com.		172537	IN	NS	ns4.msft.net.
microsoft.com.		172537	IN	NS	ns1.msft.net.
microsoft.com.		172537	IN	NS	ns2.msft.net.
microsoft.com.		172537	IN	NS	ns5.msft.net.
microsoft.com.		172537	IN	NS	ns3.msft.net.

;; ADDITIONAL SECTION:
ns1.msft.net.		167855	IN	A	65.55.37.62
ns1.msft.net.		167855	IN	AAAA	2a01:111:2005::1:1
ns2.msft.net.		167855	IN	A	64.4.59.173
ns2.msft.net.		167855	IN	AAAA	2a01:111:2006:6::1:1
ns3.msft.net.		167855	IN	A	213.199.180.53
ns3.msft.net.		167855	IN	AAAA	2a01:111:2020::1:1
ns4.msft.net.		167855	IN	A	207.46.75.254
ns4.msft.net.		167855	IN	AAAA	2404:f800:2003::1:1
ns5.msft.net.		167855	IN	A	65.55.226.140
ns5.msft.net.		167855	IN	AAAA	2a01:111:200f:1::1:1

;; Query time: 0 msec
;; SERVER: 71.252.219.43#53(71.252.219.43)
;; WHEN: Wed Mar 27 18:29:29 2013
;; MSG SIZE  rcvd: 386

* So... www.microsoft.com has no AAAA records, and the AAAA records for
www.ipv6.microsoft.com correspond to 6to4 addresses?

mmmm... Am I missing something?

Cheers,
-- 
Fernando Gont
SI6 Networks
e-mail: fgont at si6networks.com
PGP Fingerprint: 6666 31C6 D484 63B2 8FB1 E3C4 AE25 0D55 1D4E 7492





-- 
Fernando Gont
e-mail: fernando at gont.com.ar || fgont at si6networks.com
PGP Fingerprint: 7809 84F5 322E 45C7 F1C9 3945 96EE A9EF D076 FFF1