I have reviewed this document as part of the security directorate's ongoing effort to review all IETF documents being processed by the IESG. These comments were written primarily for the benefit of the security area directors. Document editors and WG chairs should treat these comments just like any other last call comments. This document proposes initiation, utilization and termination mechanisms for localized routing between mobile access gateways within a proxy mobile IPv6 domain. The security considerations section introduces (for this document) the requirement for IPSec and the reuse of a security association described in RFC 5213. This text belongs in the body of the document in my opinion, with the security considerations possibly changed to simply reference RFC 4832 and RFC 5213 security considerations.