RFC 2409 · HISTORIC · 1998
WED · 29 JUL 2026
The Internet Key Exchange
Overview
RFC 2409, “The Internet Key Exchange”, is a Historic document published in November 1998 by D. Harkins, D. Carrel. It has since been updated by RFC 4109. It has been obsoleted by RFC 4306 — refer to the newer document for the authoritative version. The canonical text is published by the RFC Editor.
Abstract
This memo describes a hybrid protocol. The purpose is to negotiate, and provide authenticated keying material for, security associations in a protected manner. [STANDARDS-TRACK]
What “Historic” means
A specification that has been superseded or is otherwise no longer recommended for use.
Read this RFC
The canonical text of RFC 2409 is hosted at rfc-editor.org. Available in TXT,HTML.
Relationships to other RFCs
Other RFCs from 1998
- RFC 2408 Internet Security Association and Key Management Protocol
- RFC 2410 The NULL Encryption Algorithm and Its Use With IPsec
- RFC 2407 The Internet IP Security Domain of Interpretation for ISAKMP
- RFC 2411 IP Security Document Roadmap
- RFC 2406 IP Encapsulating Security Payload
- RFC 2412 The OAKLEY Key Determination Protocol
- RFC 2405 The ESP DES-CBC Cipher Algorithm With Explicit IV
- RFC 2413 Dublin Core Metadata for Resource Discovery