Experimental IPv6 Address Record (A6)

RFC 3363 changed the status of the A6 RR (defined in RFC 2874) from a PROPOSED STANDARD to EXPERIMENTAL due primarily to performance and operational concerns. The current IETF recommendation is to use AAAA for forward mapping and PTR RRs for reverse mapping IPv6 networks.

RFC 6563 finally plunged the dagger into the ill-fated A6 RR by moving it to historical status. A6 is now but a footnote in history. Sad really.

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