Facebook broken over v6?

Sat Jun 8 22:43:14 UTC 2013

Someone must have yanked the AAAA for www.facebook.com, because I see a
CNAME to star.c10r.facebook.com, which doesn't have an AAAA.

============================================
DNS server: 199.120.69.24

; <<>> DiG 9.7.3 <<>> AAAA www.facebook.com @199.120.69.24
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 16032
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 0

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

;; ANSWER SECTION:
www.facebook.com.       3147    IN      CNAME   star.c10r.facebook.com.

;; AUTHORITY SECTION:
c10r.facebook.com.      51      IN      SOA     a.ns.c10r.facebook.com.
dns.facebook.com. 1370731022 300 600 600 300

;; Query time: 0 msec
;; SERVER: 199.120.69.24#53(199.120.69.24)
;; WHEN: Sat Jun  8 17:41:30 2013
;; MSG SIZE  rcvd: 103

============================================
DNS server: 167.142.225.5

; <<>> DiG 9.7.3 <<>> AAAA www.facebook.com @167.142.225.5
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 963
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 0

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

;; ANSWER SECTION:
www.facebook.com.       2324    IN      CNAME   star.c10r.facebook.com.

;; AUTHORITY SECTION:
c10r.facebook.com.      44      IN      SOA     a.ns.c10r.facebook.com.
dns.facebook.com. 1370731022 300 600 600 300

;; Query time: 8 msec
;; SERVER: 167.142.225.5#53(167.142.225.5)
;; WHEN: Sat Jun  8 17:41:30 2013
;; MSG SIZE  rcvd: 103

============================================

Frank

-----Original Message-----
From: Doug Porter [mailto:dsp at fb.com] 
Sent: Saturday, June 08, 2013 3:30 PM
Cc: nanog at nanog.org
Subject: Re: Facebook broken over v6?

We're actively investigating the v6 issues.  We need more data
though.  If you're experiencing problems, please email me a
tcpdump/pcap or any other debug data you think will help.

Thanks,
-- 
dsp