"I am an assigned INT directorate reviewer for draft-ietf-hip-rfc5204-bis These comments were written primarily for the benefit of the Internet Area Directors. Document editors and shepherd(s) should treat these comments just like they would treat comments from any other IETF contributors and resolve them along with any other Last Call comments that have been received. For more details on the INT Directorate, see http://www.ietf.org/iesg/directorate.html." ; This standard track document obsoletes RFC5205, which was Experimental. I guess this need support from various implementation and inter-operational tests. I personally don't know them, but I guess they already took place. The document is well written and ready for publication. This bis document has only little different from the original document: mainly three more paragraphs, two in section 4.2 and one in section 5.5. They looks good. A couple of minor comments: Entiry//entity, in 2nd paragraph of section 4.2, "the record MUST be considered to be no longer valid and deleted by the entiry that retrieved it" The abbreviation "HPIHI" in section 6 has no explanation or long name when it appears first time. Regards, Sheng