Simple VPN solution using Multi-point Security Association
draft-yamaya-ipsecme-mpsa-03

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IPSecME Working Group                                          A. Yamaya
Internet-Draft                                                   K. Ueki
Intended Status: Informational                                  T. Murai
Expires: July 30, 2014                         Furukawa Network Solution
                                                                 T. Ohya
                                                                     NTT
                                                             T. Yamagata
                                                                    KDDI
                                                            Jan 30, 2014

       Simple VPN solution using Multi-point Security Association
                      draft-yamaya-ipsecme-mpsa-03

Abstract

   This document describes the over-lay network solution by utilizing
   dynamically established IPsec multi-point Security Association (SA)
   without individual connection.

   Multi-point SA technology provides the simplified mechanism of the
   Auto Discovery and Configuration function.  This is applicable for
   any IPsec tunnels such as IPv4 over IPv4, IPv4 over IPv6, IPv6 over
   IPv4 and IPv6 over IPv6.

Status of this Memo

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   This Internet-Draft will expire on January 30, 2014.

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Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .
     1.1.  Terminology  . . . . . . . . . . . . . . . . . . . . . . .
     1.2.  Conventions Used in This Document  . . . . . . . . . . . .
   2.  Motivation . . . . . . . . . . . . . . . . . . . . . . . . . .
     2.1.  Conformance list . . . . . . . . . . . . . . . . . . . . .
   3.  Procedure  . . . . . . . . . . . . . . . . . . . . . . . . . .
     3.1.  Sequence . . . . . . . . . . . . . . . . . . . . . . . . .
     3.2.  Extended format  . . . . . . . . . . . . . . . . . . . . .
       3.2.1.  Vendor ID  . . . . . . . . . . . . . . . . . . . . . .
       3.2.2.  MPSA_PUT . . . . . . . . . . . . . . . . . . . . . . .
     3.3.  Multi-point SA Management  . . . . . . . . . . . . . . . .
       3.3.1.  Gateway  . . . . . . . . . . . . . . . . . . . . . . .
       3.3.2.  CPE  . . . . . . . . . . . . . . . . . . . . . . . . .
       3.3.3.  Rekeying . . . . . . . . . . . . . . . . . . . . . . .
     3.4.  Forwarding . . . . . . . . . . . . . . . . . . . . . . . .
   4. Peer discovery  . . . . . . . . . . . . . . . . . . . . . . . .
     4.1 example of MPSA with BGP for route based VPN . . . . . . . .
   5.  Security Considerations  . . . . . . . . . . . . . . . . . . .
     5.1. Protected by MPSA . . . . . . . . . . . . . . . . . . . . .
     5.2 Security issues not to be solved by MPSA . . . . . . . . . .
     5.2.1 Attack from outside of the group . . . . . . . . . . . . .
     5.2.2 Attack from inside of the group  . . . . . . . . . . . . .
     5.3 Forward secrecy and backward secrecy . . . . . . . . . . . .
   6.  IANA Considerations  . . . . . . . . . . . . . . . . . . . . .
   7.  References . . . . . . . . . . . . . . . . . . . . . . . . . .
     7.1.  Normative References . . . . . . . . . . . . . . . . . . .
     7.2.  Informative References . . . . . . . . . . . . . . . . . .
   Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . .
 

1.  Introduction

   As described in the problem statement document [ad-vpn-problem],
   dynamic, secure and scalable system for establishing SAs is needed.

   With multi-point SA, an endpoint automatically discovers other
   endpoint. In this draft, an endpoint means an inexpensive CPE, which
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