Using the Encapsulating Security Payload (ESP) Transport Format with the Host Identity Protocol (HIP)
draft-ietf-hip-rfc5202-bis-06

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Document Type Active Internet-Draft (hip WG)
Last updated 2014-07-28
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Intended RFC status Proposed Standard
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Send notices to hip-chairs@tools.ietf.org, draft-ietf-hip-rfc5202-bis@tools.ietf.org
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Network Working Group                                          P. Jokela
Internet-Draft                              Ericsson Research NomadicLab
Obsoletes: 5202 (if approved)                               R. Moskowitz
Intended status: Standards Track                                 Verizon
Expires: January 29, 2015                                       J. Melen
                                            Ericsson Research NomadicLab
                                                           July 28, 2014

Using the Encapsulating Security Payload (ESP) Transport Format with the
                      Host Identity Protocol (HIP)
                     draft-ietf-hip-rfc5202-bis-06

Abstract

   This memo specifies an Encapsulated Security Payload (ESP) based
   mechanism for transmission of user data packets, to be used with the
   Host Identity Protocol (HIP).  This document obsoletes RFC 5202.

Status of This Memo

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   This Internet-Draft will expire on January 29, 2015.

Copyright Notice

   Copyright (c) 2014 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
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Jokela, et al.          Expires January 29, 2015                [Page 1]
Internet-Draft   Using the ESP Transport Format with HIP       July 2014

   the Trust Legal Provisions and are provided without warranty as
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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Conventions Used in This Document . . . . . . . . . . . . . .   4
   3.  Using ESP with HIP  . . . . . . . . . . . . . . . . . . . . .   4
     3.1.  ESP Packet Format . . . . . . . . . . . . . . . . . . . .   5
     3.2.  Conceptual ESP Packet Processing  . . . . . . . . . . . .   5
       3.2.1.  Semantics of the Security Parameter Index (SPI) . . .   6
     3.3.  Security Association Establishment and Maintenance  . . .   6
       3.3.1.  ESP Security Associations . . . . . . . . . . . . . .   6
       3.3.2.  Rekeying  . . . . . . . . . . . . . . . . . . . . . .   7
       3.3.3.  Security Association Management . . . . . . . . . . .   8
       3.3.4.  Security Parameter Index (SPI)  . . . . . . . . . . .   8
       3.3.5.  Supported Ciphers . . . . . . . . . . . . . . . . . .   8
       3.3.6.  Sequence Number . . . . . . . . . . . . . . . . . . .   8
       3.3.7.  Lifetimes and Timers  . . . . . . . . . . . . . . . .   9
     3.4.  IPsec and HIP ESP Implementation Considerations . . . . .   9
       3.4.1.  Data Packet Processing Considerations . . . . . . . .   9
       3.4.2.  HIP Signaling Packet Considerations . . . . . . . . .  10
   4.  The Protocol  . . . . . . . . . . . . . . . . . . . . . . . .  10
     4.1.  ESP in HIP  . . . . . . . . . . . . . . . . . . . . . . .  10
       4.1.1.  IPsec ESP Transport Format Type . . . . . . . . . . .  10
       4.1.2.  Setting Up an ESP Security Association  . . . . . . .  11
       4.1.3.  Updating an Existing ESP SA . . . . . . . . . . . . .  12
   5.  Parameter and Packet Formats  . . . . . . . . . . . . . . . .  12
     5.1.  New Parameters  . . . . . . . . . . . . . . . . . . . . .  12
       5.1.1.  ESP_INFO  . . . . . . . . . . . . . . . . . . . . . .  13
       5.1.2.  ESP_TRANSFORM . . . . . . . . . . . . . . . . . . . .  14
       5.1.3.  NOTIFICATION Parameter  . . . . . . . . . . . . . . .  16
     5.2.  HIP ESP Security Association Setup  . . . . . . . . . . .  16
       5.2.1.  Setup During Base Exchange  . . . . . . . . . . . . .  16
     5.3.  HIP ESP Rekeying  . . . . . . . . . . . . . . . . . . . .  18
       5.3.1.  Initializing Rekeying . . . . . . . . . . . . . . . .  18
       5.3.2.  Responding to the Rekeying Initialization . . . . . .  19
     5.4.  ICMP Messages . . . . . . . . . . . . . . . . . . . . . .  19
       5.4.1.  Unknown SPI . . . . . . . . . . . . . . . . . . . . .  19
   6.  Packet Processing . . . . . . . . . . . . . . . . . . . . . .  20
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