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 describes a particular FEC scheme that fits within the FECFRAME framework. It has a well thought through security considerations section, and in all cases points to the security considerations in RFC 6363 for mitigation. This is appropriate and sufficient. Brian