Registration Extensions for 6LoWPAN Neighbor Discovery
draft-ietf-6lo-rfc6775-update-21

Document Type Active Internet-Draft (6lo WG)
Last updated 2018-10-10 (latest revision 2018-06-19)
Replaces draft-thubert-6lo-rfc6775-update
Stream IETF
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Document shepherd Gabriel Montenegro
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Responsible AD Suresh Krishnan
Send notices to "Gabriel Montenegro" <Gabriel.Montenegro@microsoft.com>
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RFC Editor RFC Editor state AUTH
6lo                                                      P. Thubert, Ed.
Internet-Draft                                                     Cisco
Updates: 6775 (if approved)                                  E. Nordmark
Intended status: Standards Track                                  Zededa
Expires: December 21, 2018                                S. Chakrabarti
                                                                 Verizon
                                                              C. Perkins
                                                               Futurewei
                                                           June 19, 2018

         Registration Extensions for 6LoWPAN Neighbor Discovery
                    draft-ietf-6lo-rfc6775-update-21

Abstract

   This specification updates RFC 6775 - 6LoWPAN Neighbor Discovery, to
   clarify the role of the protocol as a registration technique,
   simplify the registration operation in 6LoWPAN routers, as well as to
   provide enhancements to the registration capabilities and mobility
   detection for different network topologies including the Routing
   Registrars performing routing for host routes and/or proxy Neighbor
   Discovery in a low power network.

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
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   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on December 21, 2018.

Copyright Notice

   Copyright (c) 2018 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
   Provisions Relating to IETF Documents

Thubert, et al.         Expires December 21, 2018               [Page 1]
Internet-Draft   Registration Extensions for 6LoWPAN ND        June 2018

   (https://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect
   to this document.  Code Components extracted from this document must
   include Simplified BSD License text as described in Section 4.e of
   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
     2.1.  BCP 14  . . . . . . . . . . . . . . . . . . . . . . . . .   4
     2.2.  References  . . . . . . . . . . . . . . . . . . . . . . .   4
     2.3.  Acronym Definitions . . . . . . . . . . . . . . . . . . .   4
     2.4.  New Terms . . . . . . . . . . . . . . . . . . . . . . . .   5
   3.  Applicability of Address Registration Options . . . . . . . .   6
   4.  Extended Neighbor Discovery Options and Messages  . . . . . .   7
     4.1.  Extended Address Registration Option (EARO) . . . . . . .   7
     4.2.  Extended Duplicate Address Message Formats  . . . . . . .  11
     4.3.  Extensions to the Capability Indication Option  . . . . .  12
   5.  Updating RFC 6775 . . . . . . . . . . . . . . . . . . . . . .  13
     5.1.  Extending the Address Registration Option . . . . . . . .  14
     5.2.  Transaction ID  . . . . . . . . . . . . . . . . . . . . .  16
       5.2.1.  Comparing TID values  . . . . . . . . . . . . . . . .  16
     5.3.  Registration Ownership Verifier (ROVR)  . . . . . . . . .  17
     5.4.  Extended Duplicate Address Messages . . . . . . . . . . .  19
     5.5.  Registering the Target Address  . . . . . . . . . . . . .  19
     5.6.  Link-Local Addresses and Registration . . . . . . . . . .  20
     5.7.  Maintaining the Registration States . . . . . . . . . . .  21
   6.  Backward Compatibility  . . . . . . . . . . . . . . . . . . .  23
     6.1.  Signaling EARO Support  . . . . . . . . . . . . . . . . .  23
     6.2.  RFC6775-only 6LN  . . . . . . . . . . . . . . . . . . . .  24
     6.3.  RFC6775-only 6LR  . . . . . . . . . . . . . . . . . . . .  24
     6.4.  RFC6775-only 6LBR . . . . . . . . . . . . . . . . . . . .  24
   7.  Security Considerations . . . . . . . . . . . . . . . . . . .  25
   8.  Privacy Considerations  . . . . . . . . . . . . . . . . . . .  26
   9.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  27
     9.1.  ARO Flags . . . . . . . . . . . . . . . . . . . . . . . .  27
     9.2.  EARO I-Field  . . . . . . . . . . . . . . . . . . . . . .  28
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