A Uniform Format for IPv6 Extension Headers
RFC 6564, “A Uniform Format for IPv6 Extension Headers”, is a Proposed Standard document published in April 2012 by S. Krishnan, J. Woodyatt, E. Kline, J. Hoagland, M. Bhatia. It updates RFC 2460. The canonical text is published by the RFC Editor.
Abstract
In IPv6, optional internet-layer information is encoded in separate headers that may be placed between the IPv6 header and the transport-layer header. There are a small number of such extension headers currently defined. This document describes the issues that can arise when defining new extension headers and discusses the alternate extension mechanisms in IPv6. It also provides a common format for defining any new IPv6 extension headers, if they are needed. [STANDARDS-TRACK]
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.
The canonical text of RFC 6564 is hosted at rfc-editor.org. Available in TXT,HTML.
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