Simple Procedures for Detecting Network Attachment in IPv6
RFC 6059

Document Type RFC - Proposed Standard (November 2010; No errata)
Last updated 2013-03-02
Replaces draft-krishnan-dna-simple
Stream IETF
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Stream WG state (None)
Consensus Unknown
Document shepherd No shepherd assigned
IESG IESG state RFC 6059 (Proposed Standard)
Telechat date
Responsible AD Jari Arkko
Send notices to dna-chairs@ietf.org, draft-ietf-dna-simple@ietf.org
Internet Engineering Task Force (IETF)                       S. Krishnan
Request for Comments: 6059                                      Ericsson
Category: Standards Track                                       G. Daley
ISSN: 2070-1721                                        Netstar Logicalis
                                                           November 2010

       Simple Procedures for Detecting Network Attachment in IPv6

Abstract

   Detecting Network Attachment allows hosts to assess if its existing
   addressing or routing configuration is valid for a newly connected
   network.  This document provides simple procedures for Detecting
   Network Attachment in IPv6 hosts, and procedures for routers to
   support such services.

Status of This Memo

   This is an Internet Standards Track document.

   This document is a product of the Internet Engineering Task Force
   (IETF).  It represents the consensus of the IETF community.  It has
   received public review and has been approved for publication by the
   Internet Engineering Steering Group (IESG).  Further information on
   Internet Standards is available in Section 2 of RFC 5741.

   Information about the current status of this document, any errata,
   and how to provide feedback on it may be obtained at
   http://www.rfc-editor.org/info/rfc6059.

Copyright Notice

   Copyright (c) 2010 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
   (http://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.

Krishnan & Daley             Standards Track                    [Page 1]
RFC 6059                       Simple DNA                  November 2010

Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  3
     1.1.  Goals  . . . . . . . . . . . . . . . . . . . . . . . . . .  3
     1.2.  Applicability  . . . . . . . . . . . . . . . . . . . . . .  3
     1.3.  Link Identification Model  . . . . . . . . . . . . . . . .  4
     1.4.  DNA Overview . . . . . . . . . . . . . . . . . . . . . . .  4
     1.5.  Working Assumptions  . . . . . . . . . . . . . . . . . . .  5
   2.  Requirements Notation  . . . . . . . . . . . . . . . . . . . .  5
   3.  Terminology  . . . . . . . . . . . . . . . . . . . . . . . . .  6
   4.  The Simple DNA Address Table (SDAT)  . . . . . . . . . . . . .  7
   5.  Host Operations  . . . . . . . . . . . . . . . . . . . . . . .  7
     5.1.  On Receipt of a Router Advertisement . . . . . . . . . . .  7
     5.2.  After Assignment of a DHCPv6 Address . . . . . . . . . . .  8
     5.3.  Steps Involved in Detecting Link Change  . . . . . . . . .  8
     5.4.  Link-Layer Indication  . . . . . . . . . . . . . . . . . .  8
     5.5.  Sending Neighbor Discovery probes  . . . . . . . . . . . .  9
       5.5.1.  Sending Router Solicitations . . . . . . . . . . . . .  9
       5.5.2.  Sending Neighbor Solicitations . . . . . . . . . . . .  9
       5.5.3.  Concurrent Sending of RS and NS Probes . . . . . . . .  9
       5.5.4.  Initiating DHCPv6 Exchange . . . . . . . . . . . . . .  9
     5.6.  Contents of the Neighbor Discovery Messages  . . . . . . . 10
       5.6.1.  Neighbor Solicitation Messages . . . . . . . . . . . . 10
       5.6.2.  Router Solicitation Messages . . . . . . . . . . . . . 10
     5.7.  Response Gathering . . . . . . . . . . . . . . . . . . . . 11
       5.7.1.  Receiving Neighbor Advertisements  . . . . . . . . . . 11
       5.7.2.  Receiving Router Advertisements  . . . . . . . . . . . 11
       5.7.3.  Conflicting Results  . . . . . . . . . . . . . . . . . 11
     5.8.  Further Host Operations  . . . . . . . . . . . . . . . . . 11
     5.9.  On Connecting to a New Point of Attachment . . . . . . . . 12
     5.10. Periodic Maintenance of the SDAT . . . . . . . . . . . . . 12
     5.11. Recommended Retransmission Behavior  . . . . . . . . . . . 12
   6.  Pseudocode for Simple DNA  . . . . . . . . . . . . . . . . . . 13
   7.  Constants  . . . . . . . . . . . . . . . . . . . . . . . . . . 15
   8.  Relationship to DNAv4  . . . . . . . . . . . . . . . . . . . . 15
   9.  Security Considerations  . . . . . . . . . . . . . . . . . . . 15
   10. Acknowledgments  . . . . . . . . . . . . . . . . . . . . . . . 16
   11. References . . . . . . . . . . . . . . . . . . . . . . . . . . 17
     11.1. Normative References . . . . . . . . . . . . . . . . . . . 17
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