Search RFCs Advanced Search RFC Editor RFC 2401 Security Architecture for the Internet Protocol, November 1998 File formats: Status:PROPOSED STANDARD Obsoletes:RFC 1825 Obsoleted by:RFC 4301 Updated by:RFC 3168 Authors:S. KentR. Atkinson Stream:IETF Source:ipsec (sec) Cite this RFC: TXT | XML | BibTeX DOI: https://doi.org/10.17487/RFC2401 Discuss this RFC: Send questions or comments to the mailing list iesg@ietf.org Other actions: Submit Errata | Find IPR Disclosures from the IETF | View History of RFC 2401 Abstract This memo specifies the base architecture for IPsec compliant systems. [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