Facebook broken over v6?

Frank Bulk frnkblk at iname.com
Sat Jun 8 23:14:35 UTC 2013


And just like that, the AAAA is back again. =)


============================================
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: 46006
;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 2, ADDITIONAL: 2

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

;; ANSWER SECTION:
www.facebook.com.       452     IN      CNAME   star.c10r.facebook.com.
star.c10r.facebook.com. 37      IN      AAAA
2a03:2880:10:1f02:face:b00c:0:8

;; AUTHORITY SECTION:
c10r.facebook.com.      119251  IN      NS      b.ns.c10r.facebook.com.
c10r.facebook.com.      119251  IN      NS      a.ns.c10r.facebook.com.

;; ADDITIONAL SECTION:
a.ns.c10r.facebook.com. 120993  IN      A       69.171.239.11
b.ns.c10r.facebook.com. 120381  IN      A       69.171.255.11

;; Query time: 7 msec
;; SERVER: 167.142.225.5#53(167.142.225.5)
;; WHEN: Sat Jun  8 18:12:42 2013
;; MSG SIZE  rcvd: 153

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

Frank

-----Original Message-----
From: Frank Bulk [mailto:frnkblk at iname.com] 
Sent: Saturday, June 08, 2013 5:43 PM
To: 'Doug Porter'
Cc: nanog at nanog.org
Subject: RE: Facebook broken over v6?

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







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