[js2]

I have TWC residential service. Coincidentally, I just experimented with setting up IPv6 yesterday on my Airport Extreme. TWC is not issuing IPv6 addresses at my location. So I went with an automatic tunnel (192.88.99.1). That IP is 16 hops and 150 ms away for me (anycast by Congent in my case) and its performance was awful.

I switched to a manual tunnel from HE (tunnelbroker.net). I confirmed this worked, that my Apple devices behind the Airport Express all got IPv6 addresses and so forth, and that the performance was decent.

Experience in hand, I then tore it all down, since I couldn't think of a good reason why I really needed IPv6 at home. :-)

[wmf]

And now real IPv6 never gets debugged because everyone is using HE.net tunnels.