Address Protected Neighbor Discovery for Low-power and Lossy Networks
draft-ietf-6lo-ap-nd-04

Document Type Active Internet-Draft (6lo WG)
Last updated 2017-11-14
Replaces draft-sarikaya-6lo-ap-nd
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6lo                                                          B. Sarikaya
Internet-Draft
Updates: 6775 (if approved)                                   P. Thubert
Intended status: Standards Track                                   Cisco
Expires: May 18, 2018                                           M. Sethi
                                                                Ericsson
                                                       November 14, 2017

 Address Protected Neighbor Discovery for Low-power and Lossy Networks
                        draft-ietf-6lo-ap-nd-04

Abstract

   This document defines an extension to 6LoWPAN Neighbor Discovery RFC
   6775.  Nodes supporting this extension compute a cryptographic Owner
   Unique Interface ID and associate it with one or more of their
   Registered Addresses.  Once an address is registered with a
   Cryptographic ID, only the owner of that ID can modify the anchor
   state information of the Registered Address, and Source Address
   Validation can be enforced.

Status of This Memo

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   This Internet-Draft will expire on May 18, 2018.

Copyright Notice

   Copyright (c) 2017 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
   (https://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents

Sarikaya, et al.          Expires May 18, 2018                  [Page 1]
Internet-Draft        Address Protection ND for LLN        November 2017

   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  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   4
   3.  Updating RFC 6775 . . . . . . . . . . . . . . . . . . . . . .   4
   4.  New Fields and Options  . . . . . . . . . . . . . . . . . . .   5
     4.1.  New Crypto-ID . . . . . . . . . . . . . . . . . . . . . .   5
     4.2.  Updated EARO  . . . . . . . . . . . . . . . . . . . . . .   6
     4.3.  New Crypto-ID Parameters Option . . . . . . . . . . . . .   7
   5.  Protocol Overview . . . . . . . . . . . . . . . . . . . . . .   9
     5.1.  Protocol Scope  . . . . . . . . . . . . . . . . . . . . .   9
     5.2.  Protocol Flows  . . . . . . . . . . . . . . . . . . . . .  10
     5.3.  Multihop Operation  . . . . . . . . . . . . . . . . . . .  12
   6.  Security Considerations . . . . . . . . . . . . . . . . . . .  12
   7.  IANA considerations . . . . . . . . . . . . . . . . . . . . .  13
     7.1.  Crypto Type Registry  . . . . . . . . . . . . . . . . . .  13
   8.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  14
   9.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  14
     9.1.  Normative References  . . . . . . . . . . . . . . . . . .  14
     9.2.  Informative references  . . . . . . . . . . . . . . . . .  14
   Appendix A.  Requirements Addressed in this Document  . . . . . .  16
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  17

1.  Introduction

   "Neighbor Discovery Optimizations for 6LoWPAN networks" [RFC6775]
   (6LoWPAN ND) adapts the classical IPv6 ND protocol [RFC4861][RFC4862]
   (IPv6 ND) for operations over a constrained low-power and lossy
   network (LLN).  In particular, 6LoWPAN ND introduces a unicast host
   address registration mechanism that contributes to reduce the use of
   multicast messages that are present in the classical IPv6 ND
   protocol. 6LoWPAN ND defines a new Address Registration Option (ARO)
   that is carried in the unicast Neighbor Solicitation (NS) and
   Neighbor Advertisement (NA) messages between the 6LoWPAN Node (6LN)
   and the 6LoWPAN Router (6LR).  Additionally, it also defines the
   Duplicate Address Request (DAR) and Duplicate Address Confirmation
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