Secure DHCPv6
draft-ietf-dhc-sedhcpv6-13

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Document Type Active Internet-Draft (dhc WG)
Last updated 2016-07-08
Replaces draft-jiang-dhc-sedhcpv6
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DHC Working Group                                               S. Jiang
Internet-Draft                              Huawei Technologies Co., Ltd
Intended status: Standards Track                                   L. Li
Expires: January 9, 2017                                          Y. Cui
                                                     Tsinghua University
                                                               T. Jinmei
                                                           Infoblox Inc.
                                                                T. Lemon
                                                           Nominum, Inc.
                                                                D. Zhang
                                                            July 8, 2016

                             Secure DHCPv6
                       draft-ietf-dhc-sedhcpv6-13

Abstract

   DHCPv6 includes no deployable security mechanism that can protect
   end-to-end communication between DHCP clients and servers.  This memo
   describes a mechanism for using public key cryptography to provide
   such security.  The mechanism provides encryption in all cases, and
   can be used for authentication based either on pre-sharing of
   authorized certificates, or else using trust-on-first-use.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
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   Internet-Drafts are draft documents valid for a maximum of six months
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   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on January 9, 2017.

Copyright Notice

   Copyright (c) 2016 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

Jiang, et al.            Expires January 9, 2017                [Page 1]
Internet-Draft                  SeDHCPv6                       July 2016

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Requirements Language and Terminology . . . . . . . . . . . .   3
   3.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   3
   4.  Security Issues of DHCPv6 . . . . . . . . . . . . . . . . . .   4
   5.  Secure DHCPv6 Overview  . . . . . . . . . . . . . . . . . . .   5
     5.1.  Solution Overview . . . . . . . . . . . . . . . . . . . .   5
     5.2.  New Components  . . . . . . . . . . . . . . . . . . . . .   6
     5.3.  Support for Algorithm Agility . . . . . . . . . . . . . .   6
     5.4.  Applicability . . . . . . . . . . . . . . . . . . . . . .   7
   6.  DHCPv6 Client Behavior  . . . . . . . . . . . . . . . . . . .   8
   7.  DHCPv6 Server Behavior  . . . . . . . . . . . . . . . . . . .  11
   8.  Relay Agent Behavior  . . . . . . . . . . . . . . . . . . . .  13
   9.  Extensions for Secure DHCPv6  . . . . . . . . . . . . . . . .  14
     9.1.  New DHCPv6 Options  . . . . . . . . . . . . . . . . . . .  14
       9.1.1.  Certificate Option  . . . . . . . . . . . . . . . . .  14
       9.1.2.  Signature option  . . . . . . . . . . . . . . . . . .  15
       9.1.3.  Increasing-number Option  . . . . . . . . . . . . . .  17
       9.1.4.  Encrypted-message Option  . . . . . . . . . . . . . .  17
     9.2.  New DHCPv6 Messages . . . . . . . . . . . . . . . . . . .  18
     9.3.  Status Codes  . . . . . . . . . . . . . . . . . . . . . .  18
   10. Security Considerations . . . . . . . . . . . . . . . . . . .  19
   11. IANA Considerations . . . . . . . . . . . . . . . . . . . . .  19
   12. Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  21
   13. Change log [RFC Editor: Please remove]  . . . . . . . . . . .  21
   14. Open Issues [RFC Editor: Please remove] . . . . . . . . . . .  23
   15. References  . . . . . . . . . . . . . . . . . . . . . . . . .  23
     15.1.  Normative References . . . . . . . . . . . . . . . . . .  23
     15.2.  Informative References . . . . . . . . . . . . . . . . .  25
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  25
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