9. IANA Considerations

  o  Response packets that do not carry Routing headers.

  o  Response packets that carry Routing headers that were NOT
     derived by reversing the Routing header of the received packet
     (for example, a Routing header supplied by local
     configuration).

  o  Response packets that carry Routing headers that were derived
     by reversing the Routing header of the received packet IF AND
     ONLY IF the integrity and authenticity of the Source Address
     and Routing header from the received packet have been verified
     by the responder.

RFC 2460 is referenced in a number of IANA registries. These include:

  o  Internet Protocol Version 6 (IPv6) Parameters [IANA-6P]