RFC 9740 · PROPOSED STANDARD · 2025
WED · 29 JUL 2026
New IPFIX Information Elements for TCP Options and IPv6 Extension Headers
Overview
RFC 9740, “New IPFIX Information Elements for TCP Options and IPv6 Extension Headers”, is a Proposed Standard document published in March 2025 by M. Boucadair, B. Claise. The canonical text is published by the RFC Editor.
Abstract
This document specifies new IP Flow Information Export (IPFIX) Information Elements (IEs) to solve issues with existing ipv6ExtensionHeaders and tcpOptions IPFIX IEs, especially the ability to export any observed IPv6 extension headers or TCP options.
What “Proposed Standard” means
An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.
Read this RFC
The canonical text of RFC 9740 is hosted at rfc-editor.org. Available in HTML,TXT,PDF,XML.
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