[outages] Cloudflare issues? v4 in Pacific Northwest

Hugo Slabbert hslabbert at stargate.ca
Wed Nov 11 01:15:23 EST 2015


Anyone seeing issues reaching Cloudflare-hosted sites in the Pacific 
Northwest, specifically on IPv4?

Maybe related to Frank's earlier note re: maintenance and Cloudflare losing 
their AAAA?  Or maybe 
https://www.cloudflarestatus.com/incidents/h2rgfrxtwk69 (which just got 
posted after I finished writing the rest below...)?

One sample site (http://tecadmin.net/) can be retrieved over v6 but v4 
fails to connect, while another gives a 503 on v6 while also failing to 
connect on v4:

hslabbert at bamboo:~$ wget http://tecadmin.net
--2015-11-10 21:52:49--  http://tecadmin.net/
Resolving tecadmin.net (tecadmin.net)... 2400:cb00:2048:1::681b:bcd9, 2400:cb00:2048:1::681b:bdd9, 104.27.189.217, ...
Connecting to tecadmin.net (tecadmin.net)|2400:cb00:2048:1::681b:bcd9|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: unspecified [text/html]
Saving to: ‘index.html’

    [ <=>                                                                        ] 91,024      --.-K/s   in 0.02s

2015-11-10 21:52:49 (3.69 MB/s) - ‘index.html’ saved [91024]

hslabbert at bamboo:~$ wget -4 http://tecadmin.net
--2015-11-10 21:53:02--  http://tecadmin.net/
Resolving tecadmin.net (tecadmin.net)... 104.27.189.217, 104.27.188.217
Connecting to tecadmin.net (tecadmin.net)|104.27.189.217|:80... failed: Connection timed out.
Connecting to tecadmin.net (tecadmin.net)|104.27.188.217|:80... failed: Connection timed out.
Retrying.

--2015-11-10 21:57:18--  (try: 2)  http://tecadmin.net/
Connecting to tecadmin.net (tecadmin.net)|104.27.189.217|:80... failed: Connection timed out.
Connecting to tecadmin.net (tecadmin.net)|104.27.188.217|:80... failed: Connection timed out.
Retrying.

--2015-11-10 22:01:34--  (try: 3)  http://tecadmin.net/
Connecting to tecadmin.net (tecadmin.net)|104.27.189.217|:80...


As the wgets also show, host is resolving as:

$ dig tecadmin.net A +noadditional +noauthority

; <<>> DiG 9.9.5-3ubuntu0.5-Ubuntu <<>> tecadmin.net A +noadditional +noauthority
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 19744
;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 13, ADDITIONAL: 16

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;tecadmin.net.                  IN      A

;; ANSWER SECTION:
tecadmin.net.           248     IN      A       104.27.188.217
tecadmin.net.           248     IN      A       104.27.189.217

;; Query time: 0 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Tue Nov 10 21:58:40 PST 2015
;; MSG SIZE  rcvd: 558

$ dig tecadmin.net AAAA +noadditional +noauthority

; <<>> DiG 9.9.5-3ubuntu0.5-Ubuntu <<>> tecadmin.net AAAA +noadditional +noauthority
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 2868
;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 13, ADDITIONAL: 16

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;tecadmin.net.                  IN      AAAA

;; ANSWER SECTION:
tecadmin.net.           300     IN      AAAA    2400:cb00:2048:1::681b:bdd9
tecadmin.net.           300     IN      AAAA    2400:cb00:2048:1::681b:bcd9

;; Query time: 6 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Tue Nov 10 21:59:28 PST 2015
;; MSG SIZE  rcvd: 582


Currently reaching it through VANIX, though the route is less than 6 hours 
old with no recent flaps on the peer.  Traceroutes die after the VANIX 
peer.

-- 
Hugo




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