Hello, I have been selected as the Routing Directorate reviewer for this draft. The Routing Directorate seeks to review all routing or routing-related drafts as they pass through IETF last call and IESG review, and sometimes on special request. The purpose of the review is to provide assistance to the Routing ADs. For more information about the Routing Directorate, please see http://trac.tools.ietf.org/area/rtg/trac/wiki/RtgDir Although these comments are primarily for the use of the Routing ADs, it would be helpful if you could consider them along with any other IETF Early Review/Last Call comments that you receive, and strive to resolve them through discussion or by updating the draft. Document: draft-ietf-opsec-v6-24.txt Reviewer: Acee Lindem Review Date: 03/23/2021 IETF LC End Date: Soon Intended Status: Informational Summary: The document contains a lot of useful recommendations and references for Operational Security in IPv6 networks. Since the document has "Informational" status, none of the text is normative. The document is basically ready for publication. I have some nits attached and a have couple suggested references for IPv6 control plane security. Major Issues: None Minor Issues: 1. Section 2.4 - Recommend implementation of key-chains and graceful key rollover as documented in section 2.2 of RFC 8177. This will avoid the disruptions during key rollover. 2. Section 2.4 - Recommend implementation of SPF rate-limiting as documented in RFC 8541. This is in the context of OSPFv3 protocol specific mechanisms and the recommended rate-limiting. Nits: Will send diffs in separate message.