I just wanted to drop a note, as after about 2 months of time on Comcast's 6to4 tunnel system I had to bail on it and head running back to HE.
Why? I think they have some sort of routing issues, can't say I'm entirely sure.
All I do know is as a consumer I sure like having access to Facebook, among other IPv6-enabled sites that are coming online.
And it just wasn't working properly.
Before the end of the year I'll be giving a Cisco/Linksys EA4500 a shot, running IPv6 natively.
In theory, of course, this should work just fine. I've gotta say now I'm not so convinced and it's really helpful to have a backup option.
Thanks again for all your hard work on the backbone.
Comcast is still running 6to4? You should check if native IPv6 service exists in your area:
tcpdump -i eth0 -nn icmp6 and 'ip6[40] == 134'
assumes eth0 is your wan iface.
Yes Comcast is still running 6to4 tunnel service.. (colonelf74) You should post your issues on the Comcast forums so the Engineers know about the issues.