For those into nerdspeak:

Comcast has been heavily pushing towards adopting IPV6. We've even got it in Tallahassee if you're using a DOCSIS3.0 cable modem and an IPV6 compatible router. Recently purchased a new Linksys and noticed that I'm fully IPV6 compliant now, so I wanted to set up a AAAA record in DNS (Quad-A is for resolving IPV6 addresses) and verify functionality. IPV6 in the US is still a relatively new technology and getting a leg up in the industry would be useful to me. I was messing with a Hurricane Networks IPV6 tunnel for a while but it's kinda nice to do it natively now.

And yes, NJC was right. On the 30th of April, the forum is gonna be unavailable for a time.