RFC 4721

Mobile IPv4 Challenge/Response Extensions (Revised), January 2007

Canonical URL:
https://www.rfc-editor.org/rfc/rfc4721.txt
File formats:
Plain TextPDF
Status:
PROPOSED STANDARD
Obsoletes:
RFC 3012
Updates:
RFC 3344
Authors:
C. Perkins
P. Calhoun
J. Bharatia
Stream:
IETF
Source:
mip4 (int)

Cite this RFC: TXT  |  XML

DOI:  10.17487/RFC4721

Discuss this RFC: Send questions or comments to mip4@ietf.org

Other actions: View Errata  |  Submit Errata  |  Find IPR Disclosures from the IETF


Abstract

Mobile IP, as originally specified, defines an authentication extension (the Mobile-Foreign Authentication extension) by which a mobile node can authenticate itself to a foreign agent. Unfortunately, that extension does not provide the foreign agent any direct guarantee that the protocol is protected from replays and does not allow for the use of existing techniques (such as Challenge Handshake Authentication Protocol (CHAP)) for authenticating portable computer devices. In this specification, we define extensions for the Mobile IP Agent Advertisements and the Registration Request that allow a foreign agent to use a challenge/response mechanism to authenticate the mobile node. Furthermore, this document updates RFC 3344 by including a new authentication extension called the Mobile-Authentication, Authorization, and Accounting (AAA) Authentication extension. This new extension is provided so that a mobile node can supply credentials for authorization, using commonly available AAA infrastructure elements. This authorization-enabling extension MAY co-exist in the same Registration Request with authentication extensions defined for Mobile IP Registration by RFC 3344. This document obsoletes RFC 3012. [STANDARDS-TRACK]


For the definition of Status, see RFC 2026.

For the definition of Stream, see RFC 4844.


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