Mobile-IPv4 Configuration Option for PPP IPCP
RFC 2290
| Document | Type |
RFC - Proposed Standard
(February 1998; No errata)
Updated by RFC 2794
Updates RFC 2002
|
|
|---|---|---|---|
| Last updated | 2013-03-02 | ||
| Stream | IETF | ||
| Formats | plain text html pdf htmlized bibtex | ||
| Stream | WG state | (None) | |
| Document shepherd | No shepherd assigned | ||
| IESG | IESG state | RFC 2290 (Proposed Standard) | |
| Consensus Boilerplate | Unknown | ||
| Telechat date | |||
| Responsible AD | (None) | ||
| Send notices to | (None) | ||
Network Working Group J. Solomon
Request for Comments: 2290 Motorola
Updates: 2002 S. Glass
Category: Standards Track FTP Software
February 1998
Mobile-IPv4 Configuration Option for PPP IPCP
Status of this Memo
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 of this memo is unlimited.
Copyright Notice
Copyright (C) The Internet Society (1998). All Rights Reserved.
Abstract
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.
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.1. Specification Language . . . . . . . . . . . . . . . . . 2
1.2. Terminology . . . . . . . . . . . . . . . . . . . . . . 2
1.3. Problem Statement . . . . . . . . . . . . . . . . . . . 3
1.4. Requirements . . . . . . . . . . . . . . . . . . . . . . 5
2. Mobile-IPv4 Configuration Option . . . . . . . . . . . . . . . 6
2.1. Option Format . . . . . . . . . . . . . . . . . . . . . 6
2.2. Overview . . . . . . . . . . . . . . . . . . . . . . . . 7
Solomon & Glass Standards Track [Page 1]
RFC 2290 Mobile-IPv4 Option for PPP IPCP February 1998
2.3. High-Level Requirements for Non-Mobile-Nodes . . . . . . 7
2.4. High-Level Requirements for Mobile Nodes . . . . . . . . 8
2.5. Detailed Description . . . . . . . . . . . . . . . . . . 8
2.6. Example Scenarios . . . . . . . . . . . . . . . . . . . 12
3. Additional Requirements . . . . . . . . . . . . . . . . . . . 14
3.1. Other IPCP Options . . . . . . . . . . . . . . . . . . . 14
3.2. Move Detection . . . . . . . . . . . . . . . . . . . . . 14
4. Security Considerations . . . . . . . . . . . . . . . . . . . 15
5. References . . . . . . . . . . . . . . . . . . . . . . . . . . 15
6. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 16
7. Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . 16
8. Full Copyright Statement . . . . . . . . . . . . . . . . . . . 17
1. Introduction
Mobile IP [RFC 2002] defines protocols and procedures by which
packets can be routed to a mobile node, regardless of its current
point-of-attachment to the Internet, and without changing its IP
address. Mobile IP is designed to run over any type of media and any
type of data link-layer. However, the interaction between Mobile IP
and PPP is currently underspecified and generally results in an
inappropriate application of Mobile IP when mobile nodes connect to
the Internet via PPP.
This document defines proper interaction between a mobile node [RFC
2002] and a peer through which the mobile node connects to the
Internet using PPP. This requires the definition of a new option for
IPCP [RFC 1332], named the "Mobile-IPv4" Configuration Option, which
is defined in this document. The mobile node and the peer use this
option to negotiate the appropriate use of Mobile IP over the PPP
link.
The Mobile-IPv4 option defined in this document is intended to work
in conjunction with the existing IP-Address option [RFC 1332].
1.1. Specification Language
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in RFC 2119.
1.2. Terminology
This document uses the following terms as defined in [RFC 2002]:
Solomon & Glass Standards Track [Page 2]
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