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ObsoletedPROPOSED STANDARDIETF stream

RFC 2402: IP Authentication Header

This RFC has been replaced. Do not implement against it for new work — it was formally obsoleted by RFC 4302, RFC 4305.

Current document in this lineage: RFC 4302 — IP Authentication Header; RFC 4303 — IP Encapsulating Security Payload (ESP); RFC 8221 — Cryptographic Algorithm Implementation Requirements and Usage Guidance for Encapsulating Security Payload (ESP) and Authentication Header (AH)

In plain English — editorial summary, not part of the RFC

The IP Authentication Header (AH) is used to provide connectionless integrity and data origin authentication for IP datagrams (hereafter referred to as just "authentication"), and to provide protection against replays. [STANDARDS-TRACK]

Document record

Document ID
RFC2402
Published
November 1998
Authors
S. Kent; R. Atkinson
Status
PROPOSED STANDARD
Stream
IETF
Area
sec
Pages
22
Also known as
—
Obsoletes:
RFC 1826
Obsoleted by:
RFC 4302, RFC 4305

Topics

Standards lineage

This document is one revision in a chain of 10 RFCs, each formally replacing the one before it.

  1. RFC 1826 (1995)
  2. RFC 1827 (1995)
  3. RFC 2402 (1998)
  4. RFC 2406 (1998)
  5. RFC 4302 (2005)
  6. RFC 4303 (2005)
  7. RFC 4305 (2005)
  8. RFC 4835 (2007)
  9. RFC 7321 (2014)
  10. RFC 8221 (2017) ✓

Read the full history of Cryptographic Algorithm Implementation Requirements and Usage Guidance for Encapsulating Security Payload (ESP) and Authentication Header (AH) →

Referenced by

2 later RFCs formally update or obsolete part of this document.

Related documents

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About this page

The document record above — title, authors, date, status, stream, area, relationships, DOI and errata — is imported verbatim from the public RFC Editor index. The “in plain English” section is editorial: written by The metasystema editorial team, not part of the RFC. Where the two differ, the RFC text governs.

Last checked against the RFC Editor index on . RFCs are never revised after publication; changes are issued as new documents.

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canonical URL: /rfc/2402-ip-authentication-header