Hi, 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. Overall I found the document to be well written and very informative. The Security Considerations is complimentary and appropriate for the document. I found no nits to complain about so I recommend publication. Thanks and regards, Chris