RSVP defined in [RFC2205] defines a resource reservation setup protocol, designed for an integrated service internet. RSVP-TE defined in [RFC2205] extends RSVP to establish LSP's in MPLS. For RSVP-TE hops that cannot allocate Labels cannot exist in the PATH of the LSP's. It is therefore specified that for IPv6 RSVP-TE LSP's Path, PathTear and ResvConf Messages should address the messages directly to an adjacent node control plane IPv6 address. This document also specfies some other changes required for RSVP-TE to work over IPv6 transport.