http://www.rfc-editor.org/rfc/rfc5873.txt
RFC 5873: Pre-Authentication Support for the Protocol for Carrying Authentication for Network Access (PANA), Y. Ohba, A. Yegin2010-05-01T23:00:00-00:00This document defines an extension to the Protocol for Carrying Authentication for Network Access (PANA) for proactively establishing a PANA Security Association between a PANA Client in one access network and a PANA Authentication Agent in another access network to which the PANA Client may move. This document defines an Experimental Protocol for the Internet community.