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        RFC 2290:

        Title:      Mobile-IPv4 Configuration Option for PPP IPCP
	Author(s):  J. Solomon, S. Glass
        Status:     Proposed Standard
	Date:       February 1998
        Mailbox:    solomon@comm.mot.com, glass@ftp.com
	Pages:      17
        Characters: 39421
        Updates:    2002

        URL:        ftp://ds.internic.net/rfc/rfc2290.txt

Mobile IP [RFC 2002] defines media-independent procedures by which a
Mobile Node can maintain existing transport and application-layer
connections despite changing its point-of-attachment to the Internet
and without changing its IP address.  PPP [RFC 1661] provides a
standard method for transporting multi-protocol packets over
point-to-point links.  As currently specified, Mobile IP Foreign
Agents which support Mobile Node connections via PPP can do so only by
first assigning unique addresses to those Mobile Nodes, defeating one
of the primary advantages of Foreign Agents.  This documents corrects
this problem by defining the Mobile-IPv4 Configuration Option to the
Internet Protocol Control Protocol (IPCP) [RFC 1332].  Using this
option, two peers can communicate their support for Mobile IP during
the IPCP phase of PPP.  Familiarity with Mobile IP [RFC 2002], IPCP
[RFC 1332], and PPP [RFC 1661] is assumed.
 
This document is a product of the Point-to-Point Protocol Extensions
Working Group of the IETF.

This is now a Proposed Standard Protocol.

This document specifies an Internet standards track protocol for
the Internet community, and requests discussion and suggestions
for improvements.  Please refer to the current edition of the
"Internet Official Protocol Standards" (STD 1) for the
standardization state and status of this protocol.  Distribution
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Joyce K. Reynolds and Alegre Ramos
USC/Information Sciences Institute