Anyone else having trouble with cloudfare hosted services over IPV6?
ipv4 works. ipv6 fails.
I've tried w/ RCN, and it works okay, so the problem seems to be specific to comcast & cloudflare. it includes all cloudfare hosted content and sites, and their OCSP service w/ globalsign
examples below are a traceroute and HTTP GET over ipv6 and ipv4
traceroute6 www.cloudflare.com
traceroute to www.cloudflare.com.cdn.cloudflare.net (2400:cb00:2048:1::c629:d7a3) , 30 hops max, 24 byte packets
1 2001:558:4023:ef::1 (2001:558:4023:ef::1) 15.534 ms 8.366 ms 7.963 ms
2 te-0-1-0-1-sur01.roxbury.ma.boston.comcast.net (2001:558:202:f007::1) 8.404 ms 8.879 ms 13.927 ms
3 be-98-ar01.needham.ma.boston.comcast.net (2001:558:200:1e0::1) 21.117 ms 10.1 ms 11.965 ms
4 he-2-7-0-0-cr01.newyork.ny.ibone.comcast.net (2001:558:0:f7c7::1) 17.296 ms 17.252 ms 15.899 ms
5 pos-0-2-0-0-pe01.111eighthave.ny.ibone.comcast.net (2001:558:0:f5f8::2) 15.205 ms 15.842 ms 15.984 ms
6 as4436-2-c.111eighthave.ny.ibone.comcast.net (2001:559::51a) 16.979 ms 18.877 ms 15.966 ms
7 * * *
8 * * *
9 * * *
10 * * *
11 * * *
12 * * *
traceroute www.cloudflare.com
traceroute to www.cloudflare.com (198.41.215.163), 30 hops max, 60 byte packets
1 * * *
2 te-0-1-0-1-sur01.roxbury.ma.boston.comcast.net (68.85.142.169) 9.755 ms 10.676 ms 12.429 ms
3 be-98-ar01.needham.ma.boston.comcast.net (68.85.106.13) 15.972 ms 16.906 ms 16.976 ms
4 he-2-6-0-0-cr01.newyork.ny.ibone.comcast.net (68.86.93.33) 43.280 ms 43.171 ms 43.181 ms
5 he-0-11-0-0-pe02.111eighthave.ny.ibone.comcast.net (68.86.85.18) 41.857 ms 40.952 ms 41.839 ms
6 as4436-1-c.111eighthave.ny.ibone.comcast.net (173.167.57.162) 45.825 ms 39.194 ms 39.193 ms
7 vlan-75.ar2.ewr1.us.as4436.gtt.net (69.31.34.129) 38.347 ms 37.850 ms 41.128 ms
8 as13335.xe-4-0-3.ar2.ewr1.us.as4436.gtt.net (69.31.34.118) 40.013 ms 204.93.33.198 (204.93.33.198) 40.347 ms 204.93.33.194 (204.93.33.194) 39.899 ms
9 198.41.215.163 (198.41.215.163) 39.645 ms 37.346 ms 38.578 ms
wget http://www.cloudflare.com
--2014-10-11 16:31:48-- http://www.cloudflare.com/
Resolving www.cloudflare.com (www.cloudflare.com)... 2400:cb00:2048:1::c629:d6a3, 2400:cb00:2048:1::c629:d7a3, 198.41.215.163, ...
Connecting to www.cloudflare.com (www.cloudflare.com)|2400:cb00:2048:1::c629:d6a3|:80... failed: Connection timed out.
wget -4 http://www.cloudflare.com
--2014-10-11 16:34:13-- http://www.cloudflare.com/
Resolving www.cloudflare.com (www.cloudflare.com)... 198.41.215.163, 198.41.214.163
Connecting to www.cloudflare.com (www.cloudflare.com)|198.41.215.163|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: unspecified [text/html]
Saving to: ‘index.html’
[ <=> ] 11,097 --.-K/s in 0s
2014-10-11 16:34:13 (22.0 MB/s) - ‘index.html’ saved [11097]