Hi, I have reviewed this document as part of the Operational directorate's  ongoing effort to review all IETF documents being processed by the IESG.  These  comments were written with the intent of improving the operational aspects of the  IETF drafts. Comments that are not addressed in last call may be included in AD reviews  during the IESG review.  Document editors and WG chairs should treat these comments  just like any other last call comments.  This document is "informational" and provides reference information for implementing a cross-protocol network proxy that translates from HTTP to CoAP (Constrained Application Protocol). It provides the mapping to and from HTTP to CoAP. NITS ==== The NITS tool has found the following - comments and warnings: -- Found something which looks like a code comment -- if you have code sections in the document, please surround them with '' and '' lines. Checking references for intended status: Informational ---------------------------------------------------------------------------- == Missing Reference: 'C-T' is mentioned on line 796, but not defined == Missing Reference: 'C-E' is mentioned on line 782, but not defined -- Obsolete informational reference (is this intentional?): RFC 2616 (Obsoleted by RFC 7230, RFC 7231, RFC 7232, RFC 7233, RFC 7234, RFC 7235) Other than this, the document is well written and is explained well. I have no further issues with the document. Thank you kindly. Best Regards, Menachem