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Problem Statement: Mobile IPv4 Traversal of Virtual Private Network (VPN) Gateways (RFC4093)

IP.com Disclosure Number: IPCOM000127373D
Original Publication Date: 2005-Aug-01
Included in the Prior Art Database: 2005-Aug-26
Document File: 20 page(s) / 44K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

F. Adrangi: AUTHOR [+4]

Abstract

Deploying Mobile-IP v4 in networks that are connected to the Internet through a Virtual Private Network (VPN) gateway presents some problems that do not currently have well-described solutions. This document aims to describe and illustrate these problems, and to propose some guidelines for possible solutions.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 6% of the total text.

Network Working Group                                    F. Adrangi, Ed.
Request for Comments: 4093                                         Intel
Category: Informational                                H. Levkowetz, Ed.
                                                                Ericsson
                                                             August 2005


              Problem Statement: Mobile IPv4 Traversal of
                 Virtual Private Network (VPN) Gateways

Status of This Memo

   This memo provides information for the Internet community.  It does
   not specify an Internet standard of any kind.  Distribution of this
   memo is unlimited.

Copyright Notice

   Copyright (C) The Internet Society (2005).

Abstract

   Deploying Mobile-IP v4 in networks that are connected to the Internet
   through a Virtual Private Network (VPN) gateway presents some
   problems that do not currently have well-described solutions.  This
   document aims to describe and illustrate these problems, and to
   propose some guidelines for possible solutions.

Table of Contents

   1. Introduction ....................................................2
      1.1. Overview of the Problem ....................................3
      1.2. Specification of Requirements ..............................3
      1.3. Terminology ................................................3
   2. MIP and VPN Deployment Scenarios ................................4
      2.1. MIPv4 HA(s) Inside the Intranet behind a VPN Gateway .......5
      2.2. VPN Gateway and MIPv4 HA(s) on the VPN Domain Border .......6
      2.3. Combined VPN Gateway and MIPv4 HA ..........................7
      2.4. MIPv4 HA(s) Outside the VPN Domain .........................8
      2.5. Combined VPN Gateway and MIPv4 HA(s) on the Local Link .....9
   3. Deployment Scenarios Selection ..................................9
   4. Problem Statement ..............................................10
      4.1. Registering in Co-Located Mode ............................11
      4.2. Registering via an FA .....................................12
      4.3. Summary: MIP Incompatibilities with IPsec-Based
           VPN Gateways ..............................................13

Adrangi & Levkowetz          Informational                      [Page 1]
RFC 4093         MIPv4 VPN Traversal Problem Statement       August 2005


   5. Solution Guidelines ............................................14
      5.1. Preservation of Existing VPN Infrastructure ...............14
      5.2. Software Upgrades to Existing VPN Client and Gatewa...