Search RFCs Advanced Search RFC Editor RFC 4302 IP Authentication Header, December 2005 File formats: Status:PROPOSED STANDARD Obsoletes:RFC 2402 Author:S. Kent Stream:IETF Source:ipsec (sec) Cite this RFC: TXT | XML | BibTeX DOI: https://doi.org/10.17487/RFC4302 Discuss this RFC: Send questions or comments to the mailing list iesg@ietf.org Other actions: View Errata | Submit Errata | Find IPR Disclosures from the IETF | View History of RFC 4302 Abstract This document describes an updated version of the IP Authentication Header (AH), which is designed to provide authentication services in IPv4 and IPv6. This document obsoletes RFC 2402 (November 1998). [STANDARDS-TRACK] For the definition of Status, see RFC 2026. For the definition of Stream, see RFC 8729. Document RetrievalErrataFrequently Asked QuestionsFuture Format FAQHistoryAbout UsOther InformationPublication ProcessPublication QueueStyle Guide Advanced Search