An Update to 6LoWPAN ND
draft-thubert-6lo-rfc6775-update-00

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Last updated 2016-05-04
Replaced by draft-ietf-6lo-rfc6775-update, rfc8505
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6lo                                                      P. Thubert, Ed.
Internet-Draft                                                     cisco
Updates: 6775 (if approved)                                  E. Nordmark
Intended status: Standards Track                         Arista Networks
Expires: November 5, 2016                                 S. Chakrabarti
                                                                Ericsson
                                                             May 4, 2016

                        An Update to 6LoWPAN ND
                  draft-thubert-6lo-rfc6775-update-00

Abstract

   This specification proposes an update to 6LoWPAN Neighbor Discovery,
   to clarify the role of the protocol as a registration technique, and
   provide enhancements to the registration capabilities, in particular
   for the registration to a backbone router for proxy ND operations.

Status of This Memo

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   This Internet-Draft will expire on November 5, 2016.

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

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Thubert, et al.         Expires November 5, 2016                [Page 1]
Internet-Draft           An Update to 6LoWPAN ND                May 2016

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

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  Updating RFC 6775 . . . . . . . . . . . . . . . . . . . . . .   4
     3.1.  Extended Address Registration Option  . . . . . . . . . .   4
     3.2.  Link-local Scope and Consequences . . . . . . . . . . . .   5
   4.  Applicability and Requirements Served . . . . . . . . . . . .   6
   5.  The Enhanced Address Registration Option (EARO) . . . . . . .   7
   6.  Security Considerations . . . . . . . . . . . . . . . . . . .  10
   7.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  11
   8.  Acknowledgments . . . . . . . . . . . . . . . . . . . . . . .  11
   9.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  11
     9.1.  Normative References  . . . . . . . . . . . . . . . . . .  11
     9.2.  Informative References  . . . . . . . . . . . . . . . . .  12
     9.3.  External Informative References . . . . . . . . . . . . .  15
   Appendix A.  Requirements . . . . . . . . . . . . . . . . . . . .  15
     A.1.  Requirements Related to Mobility  . . . . . . . . . . . .  16
     A.2.  Requirements Related to Routing Protocols . . . . . . . .  16
     A.3.  Requirements Related to the Variety of Low-Power Link
           types . . . . . . . . . . . . . . . . . . . . . . . . . .  17
     A.4.  Requirements Related to Proxy Operations  . . . . . . . .  18
     A.5.  Requirements Related to Security  . . . . . . . . . . . .  18
     A.6.  Requirements Related to Scalability . . . . . . . . . . .  19
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  20

1.  Introduction

   The scope of this draft is an IPv6 Low Power Lossy Network (LLN),
   which can be a simple star or a more complex mesh topology.  The LLN
   may be anchored at an IPv6 Backbone Router (6BBR).  The Backbone
   Routers interconnect the LLNs over a Backbone Link and emulate that
   the LLN nodes are present on the Backbone using proxy-ND operations.

   IPv6 Neighbor Discovery (ND) Optimization for IPv6 over Low-Power
   Wireless Personal Area Networks(6LoWPANs) [RFC6775] introduced a
   proactive registration mechanism to IPv6 ND services for nodes
   belonging to a LLN.

   This specification modifies and extends the behaviour and protocol
   elements of [RFC6775] to enable additional capabilities, in
   particular the registration to a 6BBR for proxy ND operations
   [I-D.ietf-6lo-backbone-router].
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