Internet Research Task Force (IRTF) Y. Qiu
Request for Comments: 5726 Institute for Infocomm Research
Category: Experimental F. Zhao, Ed.
ISSN: 2070-1721 Google
R. Koodli
Cisco Systems
February 2010
Mobile IPv6 Location Privacy Solutions
Abstract
Mobile IPv6 (RFC 3775) enables a mobile node to remain reachable
while it roams on the Internet. However, the location and movement
of the mobile node can be revealed by the IP addresses used in
signaling or data packets. In this document, we consider the Mobile
IPv6 location privacy problem described in RFC 4882, and propose
efficient and secure techniques to protect location privacy of the
mobile node. This document is a product of the IP Mobility
Optimizations (MobOpts) Research Group.
Status of This Memo
This document is not an Internet Standards Track specification; it is
published for examination, experimental implementation, and
evaluation.
This document defines an Experimental Protocol for the Internet
community. This document is a product of the Internet Research Task
Force (IRTF). The IRTF publishes the results of Internet-related
research and development activities. These results might not be
suitable for deployment. This RFC represents the consensus of the IP
Mobility Optimizations Research Group of the Internet Research Task
Force (IRTF). Documents approved for publication by the IRSG are not
a candidate for any level of Internet Standard; see 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/rfc5726.
Qiu, et al. Experimental [Page 1]
RFC 5726 MIP6 Location Privacy Solutions February 2010
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.
Qiu, et al. Experimental [Page 2]
RFC 5726 MIP6 Location Privacy Solutions February 2010
Table of Contents
1. Introduction ....................................................5
2. Conventions and Terminology .....................................6
2.1. Conventions ................................................6
2.2. Terminology ................................................6
3. Requirements ....................................................8
4. Solution Overview ...............................................9
5. Reverse-Tunneled Correspondent Binding Update ..................11
5.1. The Procedure .............................................12
5.2. Route-Optimized Payload Packets ...........................14
5.3. Mobile Node Operation .....................................15
5.3.1. Conceptual Data Structures .........................15
5.3.2. Reverse-Tunneled Correspondent Binding
Update to the Correspondent Node ...................15
5.3.3. Reverse-Tunneled Correspondent Binding
Acknowledgement from the Correspondent Node ........16
5.3.4. Route-Optimized Payload Packets ....................16
5.3.5. Receiving ICMP Error Message .......................17
5.3.6. Binding Error from the Correspondent Node ..........17
5.3.7. Binding Refresh Request from the
Correspondent Node .................................17
5.4. Home Agent Operation ......................................17
5.5. Correspondent Node Operation ..............................18
5.5.1. Conceptual Data Structures .........................18
5.5.2. Reverse-Tunneled Correspondent Binding
Update from the Mobile Node ........................18
5.5.3. Reverse-tunneled Correspondent Binding
Acknowledgement to the Mobile Node .................18
5.5.4. Route-Optimized Payload Packets ....................18
5.5.5. ICMP Error Message to the Mobile Node ..............19
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