Reviewer: Tobias Gondrom Review result: Ready 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 the document looks good, ready to go. In my review, I did not find any material concerns with the document, and no nits. It is good that the security considerations part is quite detailed and reflects the main security risks. Additionally also appreciated that privacy considerations are also reasonably addressed in section 8. In case of this particular protocol time well spent to spell this out. Ready to release. Best regards, Tobias Ps.: apologies for my delay in sending out the review.