Address Protected Neighbor Discovery for Low-power and Lossy Networks
draft-ietf-6lo-ap-nd-01
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6lo B. Sarikaya, Ed.
Internet-Draft Huawei USA
Updates: 6775 (if approved) P. Thubert
Intended status: Standards Track Cisco
Expires: November 16, 2017 M. Sethi, Ed.
Ericsson
May 15, 2017
Address Protected Neighbor Discovery for Low-power and Lossy Networks
draft-ietf-6lo-ap-nd-01
Abstract
This document defines an extension to 6LoWPAN Neighbor Discovery.
This extension is designed for low-power and lossy network
environments and it supports multi-hop operation. Nodes supporting
this extension compute a Cryptographically Unique Interface ID and
associate it with one or more of their Registered Addresses. The
Cryptographic ID (Crypto-ID) uniquely identifies the owner of the
Registered Address. It is used in place of the EUI-64 address that
is specified in RFC 6775. Once an address is registered with a
Cryptographic ID, only the owner of that ID can modify the state
information of the Registered Address in the 6LR and 6LBR.
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
working documents as Internet-Drafts. The list of current Internet-
Drafts is at http://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress."
This Internet-Draft will expire on November 16, 2017.
Copyright Notice
Copyright (c) 2017 IETF Trust and the persons identified as the
document authors. All rights reserved.
Sarikaya, et al. Expires November 16, 2017 [Page 1]
Internet-Draft Address Protection ND for LLN May 2017
This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents
(http://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 4
3. Requirements . . . . . . . . . . . . . . . . . . . . . . . . 4
4. Protocol Interactions . . . . . . . . . . . . . . . . . . . . 5
4.1. Overview . . . . . . . . . . . . . . . . . . . . . . . . 5
4.2. Updating RFC 6775 . . . . . . . . . . . . . . . . . . . . 7
4.2.1. Crypto-ID Calculation . . . . . . . . . . . . . . . . 10
4.3. Multihop Operation . . . . . . . . . . . . . . . . . . . 13
5. Security Considerations . . . . . . . . . . . . . . . . . . . 14
6. IANA considerations . . . . . . . . . . . . . . . . . . . . . 14
7. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 14
8. Change Log . . . . . . . . . . . . . . . . . . . . . . . . . 14
9. References . . . . . . . . . . . . . . . . . . . . . . . . . 15
9.1. Normative References . . . . . . . . . . . . . . . . . . 15
9.2. Informative references . . . . . . . . . . . . . . . . . 16
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 17
1. Introduction
Neighbor discovery for IPv6 [RFC4861] and stateless address
autoconfiguration [RFC4862] are together referred to as neighbor
discovery protocols (NDP). They are defined for regular hosts that
have sufficient memory and computation capabilities. These protocols
are however not suitable for resource-constrained devices.
Therefore, they require adaptation to work on resource-constrained
hosts operating over a low-power and lossy network (LLN). Neighbor
Discovery optimizations for 6LoWPAN networks include simple
optimizations such as a host address registration feature. This
feature uses the address registration option (ARO) which is sent in
the unicast Neighbor Solicitation (NS) and Neighbor Advertisement
(NA) messages [RFC6775].
With 6LoWPAN ND [RFC6775], the ARO option includes a EUI-64 interface
ID to uniquely identify the interface of the Registered Address on
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