Comcast's IPv6 Information Site Unreachable

Derek_Ivey · July 1, 2012, 11:28pm

Anyone else having trouble getting to Comcast's IPv6 Information site? It appears to be unreachable over IPv6.

[root@server ~]# ping6 comcast6.net
PING comcast6.net(speedlab-app05.newcastlerdc.de.panjde.comcast.net) 56 data bytes
From te-4-1-ur01.newcastlerdc.de.panjde.comcast.net icmp_seq=0 Destination unreachable: Administratively prohibited
From te-4-1-ur01.newcastlerdc.de.panjde.comcast.net icmp_seq=1 Destination unreachable: Administratively prohibited
From te-4-1-ur01.newcastlerdc.de.panjde.comcast.net icmp_seq=2 Destination unreachable: Administratively prohibited
From te-4-1-ur01.newcastlerdc.de.panjde.comcast.net icmp_seq=3 Destination unreachable: Administratively prohibited
From te-4-1-ur01.newcastlerdc.de.panjde.comcast.net icmp_seq=4 Destination unreachable: Administratively prohibited
^C
--- comcast6.net ping statistics ---
5 packets transmitted, 0 received, +5 errors, 100% packet loss, time 4008ms

[root@server ~]# traceroute6 comcast6.net
traceroute to comcast6.net (2001:558:fe16:7:69:252:216:215), 30 hops max, 40 byte packets
  1 pfsense.d3r3k.net (2001:470:8:d15::1) 0.278 ms 0.282 ms 0.317 ms
  2 2001:470:7:d15::1 (2001:470:7:d15::1) 20.794 ms 24.746 ms 28.569 ms
  3 gige-g4-12.core1.ash1.he.net (2001:470:0:90::1) 28.946 ms 29.124 ms 29.144 ms
  4 as6453.gige-g3-16.core1.ash1.he.net (2001:470:0:191::2) 28.917 ms 28.936 ms 28.097 ms
  5 if-ae2.2.tcore2.AEQ-Ashburn.ipv6.as6453.net (2001:5a0:600:500::1) 28.059 ms 31.771 ms 57.135 ms
  6 2001:5a0:600:500::72 (2001:5a0:600:500::72) 28.959 ms 2001:559::31d (2001:559::31d) 29.041 ms 29.060 ms
  7 pos-3-11-0-0-cr01.ashburn.va.ibone.comcast.net (2001:558:0:f5a4::1) 32.553 ms 19.810 ms 16.526 ms
  8 2001:558:0:f669::2 (2001:558:0:f669::2) 39.019 ms 37.954 ms 36.368 ms
  9 2001:558:0:f57f::1 (2001:558:0:f57f::1) 67.134 ms 67.151 ms 67.166 ms
10 pos-2-7-0-0-cr01.denver.co.ibone.comcast.net (2001:558:0:f54d::1) 81.571 ms 81.507 ms 81.569 ms
11 2001:558:0:f744::2 (2001:558:0:f744::2) 80.633 ms 80.760 ms 79.825 ms
12 2001:558:d0:33::1 (2001:558:d0:33::1) 104.686 ms 105.060 ms 105.040 ms
13 te-3-1-ur03.cmc.co.ndcwest.comcast.net (2001:558:d0:5::1) 104.335 ms 103.962 ms 104.068 ms
14 te-3-1-ur03.cmc.co.ndcwest.comcast.net (2001:558:d0:5::1) 104.492 ms !X 104.597 ms !X 104.999 ms !X

Thanks,
Derek

Sadiq_Saif2 · July 1, 2012, 11:37pm

Website is reachable here via my HE tunnel. Pings are not going
through though as you showed.

Frank_Bulk1 · July 2, 2012, 1:35am

ICMP to www.comcast6.net has been blocked since 3:16 pm Central on 6/7/2012.
But their site loads fine over port 80.

Frank

Derek_Ivey · July 2, 2012, 1:44am

Thanks for the input guys! Sounds like it might be an issue with my tunnel then. I had problems getting to a few sites last week (http://www.dslreports.com/forum/r27265527-IPV6-Issues-Facebook-and-Engadget) and HE resolved the issue pretty quickly. I will ask them if they are aware of it.

Thanks,
Derek

James_Hess · July 2, 2012, 2:20am

Anyone else having trouble getting to Comcast's IPv6 Information site?
It appears to be unreachable over IPv6.

Looks like just ICMP that's broken.

~# telnet comcast6.net 80
Trying 2001:558:fe23:2:69:252:208:135...
Connected to comcast6.net (2001:558:fe23:2:69:252:208:135).
Escape character is '^]'.
HEAD / HTTP/1.1
Host: comcast6.net
User-Agent: Telnet

HTTP/1.1 200 OK
Server: Apache/2.2.15 (Red Hat)
X-Powered-By: PHP/5.3.3
Set-Cookie: 1a3c31c9847a772452af472ce0afd5f3=5hcm2m506se424huah4eo5lvo7; path=/
P3P: CP="NOI ADM DEV PSAi COM NAV OUR OTRo STP IND DEM"
Cache-Control: no-cache
Pragma: no-cache
Connection: close
Content-Type: text/html; charset=utf-8

Connection closed by foreign host.

~# ping6 comcast6.net
PING comcast6.net(speedlab-app05.newcastlerdc.de.panjde.comcast.net)
56 data bytes

From te-4-1-ur01.newcastlerdc.de.panjde.comcast.net icmp_seq=0