Mobile IPv4 Challenge/Response Extensions (revised)

Document Type Replaced Internet-Draft (mobileip WG)
Authors Charles Perkins  , Jayshree Bharatia 
Last updated 2015-10-14 (latest revision 2004-08-24)
Replaced by RFC 4721
Stream Internet Engineering Task Force (IETF)
Expired & archived
pdf htmlized bibtex
Stream WG state WG Document
Document shepherd No shepherd assigned
IESG IESG state Replaced by draft-ietf-mip4-rfc3012bis
Consensus Boilerplate Unknown
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Responsible AD Thomas Narten
IESG note WG has updated document based on AD review comments. But WG keeps working on it. So when they say it is done, back to the IESG.
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


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 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. This document obsoletes RFC 3012.


Charles Perkins (
Jayshree Bharatia (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)