This document defines mobility extensions to the Host Identity
Protocol (HIP). Specifically, this document defines a general
"LOCATOR_SET" parameter for HIP messages that allows for a HIP host
to notify peers about alternate addresses at which it may be reached.
This document also defines elements of procedure for mobility of a
HIP host -- the process by which a host dynamically changes the
primary locator that it uses to receive packets. While the same
LOCATOR_SET parameter can also be used to support end-host
multihoming, detailed procedures are out of scope for this document.
This document obsoletes RFC 5206.