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AT&T's U-verse service is rolling out IPv6, at least initiallly, via 6rd tunneling. There is no official mention of this working anywhere on their IPv6 site (www.att.com/ipv6); it's been reverse engineered based on how some customers have been setup ...
The link-local IP address is used for point to point communication between adjacent interfaces. When you enable v6, the router will generate a link local address for each v6 enabled interface automatically. IPv6 requires a link local ip on each activ...
