Security review of Simple Fixes to the IP Flow Information Export (IPFIX) IANA Registry draft-ietf-opsawg-ipfix-fixes-09 Do not be alarmed. I generated this review of 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 with the intent of improving security requirements and considerations in IETF drafts. Comments 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. "When OPSAWG was considering [RFC9565] which updates [RFC7125], the WG realized that some parts of the IANA IP Flow Information Export (IPFIX) registry [IANA-IPFIX] were not up-to-date. This document intends to update the IANA registry and bring some consistency among the entries of the registry." This is a straightforward document that updates each information element, adding missing information or coreedting inconsistent information, as necessary. For example, to the list of protocols having a source port identifier in the transport header. No security issues are evident to me. Hilarie