RFC 3456 (rfc3456) - Page 1 of 18

Dynamic Host Configuration Protocol (DHCPv4) Configuration of IPsec Tunnel Mode

Network Working Group                                           B. Patel
Request for Comments: 3456                                    Intel Corp
Category: Standards Track                                       B. Aboba
                                                               Microsoft
                                                                S. Kelly
                                                               Airespace
                                                                V. Gupta
                                                  Sun Microsystems, Inc.
                                                            January 2003


              Dynamic Host Configuration Protocol (DHCPv4)
                   Configuration of IPsec Tunnel Mode

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 (2003).  All Rights Reserved.

Abstract

   This memo explores the requirements for host configuration in IPsec
   tunnel mode, and describes how the Dynamic Host Configuration
   Protocol (DHCPv4) may be leveraged for configuration.  In many remote
   access scenarios, a mechanism for making the remote host appear to be
   present on the local corporate network is quite useful.  This may be
   accomplished by assigning the host a "virtual" address from the
   corporate network, and then tunneling traffic via IPsec from the
   host's ISP-assigned address to the corporate security gateway.  In
   IPv4, DHCP provides for such remote host configuration.














Patel, et. al.              Standards Track