ATT, IPv6 and 6RD

[Bill Merriam <lists () billmerriam com>]

I now have ATT IPv6 over their residential ADSL broadband.  They
deployed using 6RD which means every time your IPv4 address changes
your IPv6 address changes also.  Does anybody have a clue why they
chose to use 6RD instead of the much more fully-assed TR-187 for their
deployment?

Saying they're dimwits doesn't count.

Bill