Flow Bindings in Mobile IPv6 and Network Mobility (NEMO) Basic Support
RFC 6089

Internet Engineering Task Force (IETF)                       G. Tsirtsis
Request for Comments: 6089                                      Qualcomm
Updates: 5648                                                 H. Soliman
Category: Standards Track                           Elevate Technologies
ISSN: 2070-1721                                             N. Montavont
                                                                   IT/TB
                                                             G. Giaretta
                                                                Qualcomm
                                                          K. Kuladinithi
                                                    University of Bremen
                                                            January 2011

 Flow Bindings in Mobile IPv6 and Network Mobility (NEMO) Basic Support

Abstract

   This document introduces extensions to Mobile IPv6 that allow nodes
   to bind one or more flows to a care-of address.  These extensions
   allow multihomed nodes to instruct home agents and other Mobile IPv6
   entities to direct inbound flows to specific addresses.

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/rfc6089.

Copyright Notice

   Copyright (c) 2011 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

Tsirtsis, et al.             Standards Track                    [Page 1]
RFC 6089                      Flow Binding                  January 2011

   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.  Requirements Notation  . . . . . . . . . . . . . . . . . . . .  4
   3.  Terminology  . . . . . . . . . . . . . . . . . . . . . . . . .  4
   4.  Mobile IPv6 Extensions . . . . . . . . . . . . . . . . . . . .  5
     4.1.  Definition Update for Binding Identifier Mobility
           Option . . . . . . . . . . . . . . . . . . . . . . . . . .  5
     4.2.  Flow Identification Mobility Option  . . . . . . . . . . .  5
       4.2.1.  Flow Identification Sub-Options Definition . . . . . .  7
       4.2.2.  Flow Summary Mobility Option . . . . . . . . . . . . . 11
     4.3.  Flow Bindings Entries List and Its Relationship to
           Binding Cache  . . . . . . . . . . . . . . . . . . . . . . 12
   5.  Protocol Operations  . . . . . . . . . . . . . . . . . . . . . 14
     5.1.  General  . . . . . . . . . . . . . . . . . . . . . . . . . 14
       5.1.1.  Preferred Care-of Address  . . . . . . . . . . . . . . 15
     5.2.  Mobile Node Considerations . . . . . . . . . . . . . . . . 15
       5.2.1.  Sending BU with BID Options  . . . . . . . . . . . . . 15
       5.2.2.  Sending BU with Flow Identification Mobility
               Options  . . . . . . . . . . . . . . . . . . . . . . . 16
       5.2.3.  Sending BU with a Flow Summary Option  . . . . . . . . 17
       5.2.4.  Removing Flow Bindings . . . . . . . . . . . . . . . . 18
       5.2.5.  Returning Home . . . . . . . . . . . . . . . . . . . . 18
       5.2.6.  Receiving Binding Acknowledgements . . . . . . . . . . 19
       5.2.7.  Return Routability Procedure . . . . . . . . . . . . . 19
     5.3.  HA, MAP, and CN Considerations . . . . . . . . . . . . . . 19
       5.3.1.  Handling Binding Identifier Mobility Options . . . . . 20
       5.3.2.  Handling Flow Identification Mobility Options  . . . . 20
       5.3.3.  Handling Flow Summary Mobility Option  . . . . . . . . 23
       5.3.4.  Flow Binding Removals  . . . . . . . . . . . . . . . . 23
       5.3.5.  Sending Binding Acknowledgements . . . . . . . . . . . 24
       5.3.6.  Packet Processing  . . . . . . . . . . . . . . . . . . 24
   6.  MTU Considerations . . . . . . . . . . . . . . . . . . . . . . 25
   7.  Security considerations  . . . . . . . . . . . . . . . . . . . 26