Problem Statement of Multi-requirement Extensions for Dynamic Host Configuration Protocol for IPv6 (DHCPv6)
draft-ren-dhc-problem-statement-of-mredhcpv6-01

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Dynamic Host Configuration (DHC)                                  G. Ren
Internet-Draft                                                     L. He
Intended status: Informational                                    Y. Liu
Expires: September 11, 2019                          Tsinghua University
                                                          March 10, 2019

   Problem Statement of Multi-requirement Extensions for Dynamic Host
                Configuration Protocol for IPv6 (DHCPv6)
            draft-ren-dhc-problem-statement-of-mredhcpv6-01

Abstract

   The manageability, security, privacy protection, and traceability of
   networks can be supported by extending DHCPv6 protocol.  This
   document analyzes current extension practices and typical DHCP server
   software on extensions, defines a DHCP general model, discusses some
   extension points, and present extension cases.

Status of this Memo

   This Internet-Draft is submitted in full conformance with the
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   This Internet-Draft will expire on September 11, 2019.

Copyright Notice

   Copyright (c) 2019 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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   include Simplified BSD License text as described in Section 4.e of

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   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  3
   2.  Terminology  . . . . . . . . . . . . . . . . . . . . . . . . .  4
   3.  Current Extension Practices  . . . . . . . . . . . . . . . . .  4
     3.1.  Standardized and Non-standardized DHCPv6 Extension
           Cases  . . . . . . . . . . . . . . . . . . . . . . . . . .  4
     3.2.  Current DHCPv6 Server Software Cases . . . . . . . . . . .  4
       3.2.1.  Cisco Prime Network Registrar DHCP Server
               Extension APIs . . . . . . . . . . . . . . . . . . . .  4
       3.2.2.  Kea DHCP Hook Mechanisms . . . . . . . . . . . . . . .  5
   4.  Problem Statement  . . . . . . . . . . . . . . . . . . . . . .  5
     4.1.  DHCP General Model . . . . . . . . . . . . . . . . . . . .  5
     4.2.  Extension Discussion . . . . . . . . . . . . . . . . . . .  6
       4.2.1.  DHCP Messages  . . . . . . . . . . . . . . . . . . . .  6
       4.2.2.  Options  . . . . . . . . . . . . . . . . . . . . . . .  6
       4.2.3.  Message Processing Functions . . . . . . . . . . . . .  7
       4.2.4.  Address Generation Mechanisms  . . . . . . . . . . . .  7
       4.2.5.  Extension Principles . . . . . . . . . . . . . . . . .  7
   5.  Extensions Cases . . . . . . . . . . . . . . . . . . . . . . .  8
   6.  Security Considerations  . . . . . . . . . . . . . . . . . . .  8
   7.  IANA Considerations  . . . . . . . . . . . . . . . . . . . . .  8
   8.  Acknowledgements . . . . . . . . . . . . . . . . . . . . . . .  8
   9.  Normative References . . . . . . . . . . . . . . . . . . . . .  8
   Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 11

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1.  Introduction

   The IP address plays a significant role in the communication of the
   Internet.  IP address generation is also closely related to the
   manageability, security, privacy protection, and traceability of
   networks.  Dynamic Host Configuration Protocol for IPv6 (DHCPv6)
   [I-D.ietf-dhc-rfc3315bis] is an important network protocol that can
   be used to dynamically provide IPv6 addresses and other network
   configuration parameters to IPv6 hosts.  Actually, DHCPv6 continues
   to be extended and improved through new options, protocols or message
   processing mechanisms.

   Although DHCPv6 provides more and more comprehensive functionality
   and DHCPv6 server software also provides extension interfaces to
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