BR> I have Comcast as well, however they filter the same ports on IPv6 as BR> they do on IPv4 such as 25, 80, etc. I see you're running under the BR> Comcast native IPv6 - did they open the ports for you or are you lucky BR> and they just haven't hit your block yet? I ended up using HE.net with BR> a 6 to 4 tunnel which bypasses the Comcast blocks.