Hi,
I've had a sixxs tunnel up at Ashburn for about a year and its been great. I really appreciate them supporting an IPv6 educational effort but they have been less than helpful with this problem and I don't really know where to go for help. The problem traceroute ends in HE's network so I thought I'd try here.
Recently, I have been unable to reach us.archive.ubuntu.com via the sixxs tunnel. I am not sure if this used to work and broke, or Ubuntu recently added IPv6 and its been broken since they started. Regardless, it doesn't work now. All I know for sure is before last week 'apt-get update' worked and now it doesn't. I never paid any attention to whether it was IPv4 or IPv6 until it stopped working

joel@homestar:~$ traceroute6 us.archive.ubuntu.com
traceroute to us.archive.ubuntu.com (2001:67c:1562::14) from 2001:4830:xxxx:xxxx::xxxx, 30 hops max, 24 byte packets
1 asus-ap6 (2001:4830:xxxx:xxxx::xxxx) 0.55 ms 0.387 ms 0.458 ms
2 gw-xxxx.qas-01.us.sixxs.net (2001:4830:xxxx:xxxx::xxxx) 15.167 ms 10.844 ms 12.543 ms
3 sixxs-asbnva-gw.customer.occaid.net (2001:4830:e6:7::2) 10.264 ms 9.461 ms 9.711 ms
4 iad0-b0-ge2.hotnic.net (2001:4810:0:100::1) 12.378 ms 11.802 ms 12.364 ms
5 10gigabitethernet2-2.core1.ash1.he.net (2001:504:0:2::6939:1) 12.852 ms 14.163 ms 22.095 ms
6 100ge5-1.core1.nyc4.he.net (2001:470:0:299::2) 17.835 ms 19.178 ms 25.44 ms
7 * * *
8 * * *
9 * * *
10 * * *
11 * * *
12 * * *
13 * * *
14 * * *
15 * * *
16 *^C
I have another location that has native IPv6 from comcast and I don't have any problems reaching it from there:
root@SurfsUp:~# traceroute6 us.archive.ubuntu.com
traceroute to us.archive.ubuntu.com (2001:67c:1562::16) from 2001:558:6020:178:xxxx:xxxx:xxxx:xxxx, 30 hops max, 16 byte packets
1 2001:558:6020:xxxx::x (2001:558:6020:xxxx::x) 30.951 ms 28.077 ms 17.031 ms
2 xe-11-3-0-32767-sur01.oceancity.md.bad.comcast.net (2001:558:342:8015::1) 8.561 ms 10.545 ms 8.827 ms
3 2001:558:340:44e::1 (2001:558:340:44e::1) 12.803 ms 13.945 ms 12.786 ms
4 he-5-2-0-0-11-cr01.ashburn.va.ibone.comcast.net (2001:558:0:f6bd::1) 16.837 ms 17.848 ms 16.6 ms
5 be-14-pe03.350ecermak.il.ibone.comcast.net (2001:558:0:f8b4::2) 15.313 ms 14.723 ms 15.871 ms
6 2001:559::d16 (2001:559::d16) 15.652 ms 15.458 ms 14.1 ms
7 be2112.mpd22.dca01.atlas.cogentco.com (2001:550:0:1000::9a36:5ea) 16.434 ms 15.046 ms 15.4 ms
8 be2151.ccr42.jfk02.atlas.cogentco.com (2001:550:0:1000::9a36:284a) 19.955 ms 20.428 ms 20.418 ms
9 be2096.ccr22.bos01.atlas.cogentco.com (2001:550:0:1000::9a36:1e2a) 26.441 ms 25.832 ms 25.51 ms
10 2001:550:2:2c::15:2 (2001:550:2:2c::15:2) 26.455 ms 25.413 ms 25.409 ms
11 economy.canonical.com (2001:67c:1562::16) 26.037 ms 29.853 ms 26.174 ms
It looks to me like there is a problem with a route advertisement, but I don't know enough to figure out where it is. Perhaps someone here knows how to do that so I can take my problem to the right place?
Thanks!