Routing for RPL Leaves
draft-ietf-roll-unaware-leaves-15

The information below is for an old version of the document
Document Type Active Internet-Draft (roll WG)
Authors Pascal Thubert  , Michael Richardson 
Last updated 2020-04-28 (latest revision 2020-04-15)
Replaces draft-thubert-roll-unaware-leaves
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Intended RFC status Proposed Standard
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ROLL                                                     P. Thubert, Ed.
Internet-Draft                                             Cisco Systems
Updates: 6550, 8505 (if approved)                          M. Richardson
Intended status: Standards Track                               Sandelman
Expires: 17 October 2020                                   15 April 2020

                         Routing for RPL Leaves
                   draft-ietf-roll-unaware-leaves-15

Abstract

   This specification extends RFC6550 and RFC8505 to provide routing
   services to Hosts called RPL Unaware Leaves that implement 6LoWPAN ND
   but do not participate to RPL.  This specification also enables the
   RPL Root to proxy the 6LoWPAN keep-alive flows in its DODAG.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

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   This Internet-Draft will expire on 17 October 2020.

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   Copyright (c) 2020 IETF Trust and the persons identified as the
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Thubert & Richardson     Expires 17 October 2020                [Page 1]
Internet-Draft             RPL Unaware Leaves                 April 2020

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   4
     2.1.  BCP 14  . . . . . . . . . . . . . . . . . . . . . . . . .   4
     2.2.  References  . . . . . . . . . . . . . . . . . . . . . . .   5
     2.3.  Glossary  . . . . . . . . . . . . . . . . . . . . . . . .   5
   3.  6LoWPAN Neighbor Discovery  . . . . . . . . . . . . . . . . .   7
     3.1.  RFC 6775 Address Registration . . . . . . . . . . . . . .   7
     3.2.  RFC 8505 Extended Address Registration  . . . . . . . . .   7
       3.2.1.  R Flag  . . . . . . . . . . . . . . . . . . . . . . .   8
       3.2.2.  TID, I Field and Opaque Fields  . . . . . . . . . . .   8
       3.2.3.  ROVR  . . . . . . . . . . . . . . . . . . . . . . . .   8
     3.3.  RFC 8505 Extended DAR/DAC . . . . . . . . . . . . . . . .   9
       3.3.1.  RFC 7400 Capability Indication Option . . . . . . . .   9
   4.  Updating RFC 6550 . . . . . . . . . . . . . . . . . . . . . .  10
   5.  Updating RFC 8505 . . . . . . . . . . . . . . . . . . . . . .  11
   6.  Requirements on the RPL-Unware Leaf . . . . . . . . . . . . .  11
     6.1.  Support of 6LoWPAN ND . . . . . . . . . . . . . . . . . .  11
     6.2.  External Routes and RPL Artifacts . . . . . . . . . . . .  12
       6.2.1.  Support of IPv6 Encapsulation . . . . . . . . . . . .  13
       6.2.2.  Support of the HbH Header . . . . . . . . . . . . . .  13
       6.2.3.  Support of the Routing Header . . . . . . . . . . . .  13
   7.  Updated RPL Status  . . . . . . . . . . . . . . . . . . . . .  13
   8.  Updated RPL Target option . . . . . . . . . . . . . . . . . .  14
   9.  Protocol Operations for Unicast Addresses . . . . . . . . . .  15
     9.1.  General Flow  . . . . . . . . . . . . . . . . . . . . . .  15
       9.1.1.  In RPL Non-Storing-Mode . . . . . . . . . . . . . . .  16
       9.1.2.  In RPL Storing-Mode . . . . . . . . . . . . . . . . .  19
     9.2.  Detailed Operation  . . . . . . . . . . . . . . . . . . .  21
       9.2.1.  By the RUL Acting as 6LN  . . . . . . . . . . . . . .  21
       9.2.2.  By the RPL Border Router Acting as 6LR  . . . . . . .  22
       9.2.3.  By the RPL Root . . . . . . . . . . . . . . . . . . .  24
       9.2.4.  By the 6LBR . . . . . . . . . . . . . . . . . . . . .  25
   10. Protocol Operations for Multicast Addresses . . . . . . . . .  26
   11. Security Considerations . . . . . . . . . . . . . . . . . . .  28
   12. IANA Considerations . . . . . . . . . . . . . . . . . . . . .  28
     12.1.  Resizing the ARO Status values . . . . . . . . . . . . .  29
     12.2.  New DODAG Configuration Option Flag  . . . . . . . . . .  29
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