RFC 6328 · BEST CURRENT PRACTICE · 2011
SUN · 14 JUN 2026
IANA Considerations for Network Layer Protocol Identifiers
Overview
RFC 6328, “IANA Considerations for Network Layer Protocol Identifiers”, is a Best Current Practice document published in July 2011 by D. Eastlake 3rd. The canonical text is published by the RFC Editor.
Abstract
Some protocols being developed or extended by the IETF make use of the ISO/IEC (International Organization for Standardization / International Electrotechnical Commission) Network Layer Protocol Identifier (NLPID). This document provides NLPID IANA considerations. This memo documents an Internet Best Current Practice.
What “Best Current Practice” means
Documents the IETF community's recommended operational or procedural practice rather than a protocol specification.
Read this RFC
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