SLAP quadrant selection options for DHCPv6
draft-ietf-dhc-slap-quadrant-00

Document Type Active Internet-Draft (dhc WG)
Last updated 2019-04-24
Replaces draft-bernardos-dhc-slap-quadrant
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DHC WG                                                     CJ. Bernardos
Internet-Draft                                                      UC3M
Intended status: Experimental                                  A. Mourad
Expires: October 26, 2019                                   InterDigital
                                                          April 24, 2019

               SLAP quadrant selection options for DHCPv6
                    draft-ietf-dhc-slap-quadrant-00

Abstract

   The IEEE originally structured the 48-bit MAC address space in such a
   way that half of it was reserved for local use.  Recently, the IEEE
   has been working on a new specification (IEEE 802c) which defines a
   new "optional Structured Local Address Plan" (SLAP) that specifies
   different assignment approaches in four specified regions of the
   local MAC address space.

   The IEEE is working on mechanisms to allocate addresses in the one of
   these quadrants (IEEE 802.1CQ).  There is work also in the IETF on
   specifying a new mechanism that extends DHCPv6 operation to handle
   the local MAC address assignments.  In this document, we complement
   this ongoing IETF work by defining a mechanism to allow choosing the
   SLAP quadrant to use in the allocation of the MAC address to the
   requesting device/client.

   This document proposes extensions to DHCPv6 protocols to enable a
   DHCPv6 client or a DHCPv6 relay to indicate a preferred SLAP quadrant
   to the server, so that the server allocates the MAC address to the
   given client out of the quadrant requested by relay or client.

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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   Drafts is at https://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
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   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on October 26, 2019.

Bernardos & Mourad      Expires October 26, 2019                [Page 1]
Internet-Draft       DHCPv6 SLAP quadrant selection           April 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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   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Problem statement . . . . . . . . . . . . . . . . . . . .   4
       1.1.1.  WiFi devices  . . . . . . . . . . . . . . . . . . . .   4
       1.1.2.  Hypervisor: migratable vs non-migratable functions  .   5
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   5
   3.  Quadrant selection mechanisms . . . . . . . . . . . . . . . .   6
   4.  DHCPv6 extensions . . . . . . . . . . . . . . . . . . . . . .   8
     4.1.  Address assignment from the preferred SLAP quadrant
           indicated by the client . . . . . . . . . . . . . . . . .   9
     4.2.  Address assignment from the SLAP quadrant indicated by
           the relay . . . . . . . . . . . . . . . . . . . . . . . .  10
   5.  DHCPv6 options definitions  . . . . . . . . . . . . . . . . .  13
     5.1.  Quad (IA-LL) option . . . . . . . . . . . . . . . . . . .  13
   6.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  13
   7.  Security Considerations . . . . . . . . . . . . . . . . . . .  13
   8.  Acknowledgments . . . . . . . . . . . . . . . . . . . . . . .  13
   9.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  14
     9.1.  Normative References  . . . . . . . . . . . . . . . . . .  14
     9.2.  Informative References  . . . . . . . . . . . . . . . . .  14
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  14

1.  Introduction

   The IEEE originally structured the 48-bit MAC address space in such a
   way that half of it was reserved for local use (where the U/L bit is
   set to 1).  Recently, the IEEE has been working on a new
   specification (IEEE 802c [IEEEStd802c-2017]) which defines a new
   "optional Structured Local Address Plan" (SLAP) that specifies
   different assignment approaches in four specified regions of the
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