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 posture transport protocol for EAP tunnel methods. I found the document clearly written and easy to follow. The only suggestion I have is that in section 3.4 (or 4.2.5) on the Asokan Attack the document should clearly state that the verification of the channel token MUST be performed before any other attestations are evaluated. Cheers Leif