Distributed Mobility Management [dmm] C. Perkins
Internet-Draft Futurewei
Expires: April 21, 2016 V. Devarapalli
Vasona Networks
October 19, 2015

MN Identifier Types for RFC 4283 Mobile Node Identifier Option


Additional Identifier Types are proposed for use with the Mobile Node Identifier Option for MIPv6 (RFC 4283).

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 April 21, 2016.

Copyright Notice

Copyright (c) 2015 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.

Table of Contents

1. Introduction

The Mobile Node Identifier Option for MIPv6 [RFC4283] has proved to be a popular design tool for providing identifiers for mobile nodes during authentication procedures with AAA protocols such as Diameter [RFC3588]. To date, only a single type of identifier has been specified, namely the MN NAI. Other types of identifiers are in common use, and even referenced in RFC 4283. In this document, we propose adding some basic types that are defined in various telecommunications standards, including types for IMSI [ThreeGPP-IDS], P-TMSI [ThreeGPP-IDS], IMEI [ThreeGPP-IDS], and GUTI [ThreeGPP-IDS]. In addition, we include IEEE MAC-layer addresses the IPv6 address itself as a legitimate mobile node identifier. Defining identifiers that are tied to the physical elements of the device (RFID, MAC address etc.) help in deployment of Mobile IP because in many cases such identifiers are the most natural means for uniquely identifying the device, and will avoid additional look-up steps that might be needed if other identifiers were used.

2. New Mobile Node Identifier Types

The following types of identifiers are commonly used to identify mobile nodes. For each type, references are provided with full details on the format of the type of identifer.

The Tag Data standard promoted by Electronic Product Code(TM) (abbreviated EPC) supports several encoding systems or schemes including

For each RFID scheme except GID, there are two variations: a 64-bit scheme (for example, GLN-64) and a 96-bit scheme (GLN-96). GID has only a 96-bit scheme. Within each scheme, an EPC identifier can be represented in a binary form or other forms such as URI.

The following list includes the above RFID types as well as various other common identifiers and several different types of DUIDs.

Mobile Node Identifier Description

Identifier Type Description Reference
IPv6 Address [RFC2373]
IMSI International Mobile Subscriber Identity [ThreeGPP-IDS]
P-TMSI Packet-Temporary Mobile Subscriber Identity [ThreeGPP-IDS]
GUTI Globally Unique Temporary ID [ThreeGPP-IDS]
EUI-48 address 48-bit Extended Unique Identifier [IEEE802]
EUI-64 address 64-bit Extended Unique Identifier-64 bit [IEEE802]
DUID-LLT DHCPv6 Unique Identifier: Link-Layer address plus timestamp [RFC3315]
DUID-EN DHCPv6 Unique Identifier: Enterprise Number plus add'l data [RFC3315]
DUID-LL DHCPv6 Unique Identifier: Link-Layer address [RFC3315]
DUID-UUID DHCPv6 Unique Identifier: other conformant format [RFC6355]
RFID-SGTIN-64 64-bit Serialized Global Trade Item Number [EPC-Tag-Data]
RFID-SSCC-64 64-bit Serial Shipping Container [EPC-Tag-Data]
RFID-GLN-64 64-bit Global Location Number [EPC-Tag-Data]
RFID-GRAI-64 64-bit Global Returnable Asset Identifier [EPC-Tag-Data]
RFID-DOD-64 64-bit Department of Defense ID [RFID-DoD-96]
RFID-GIAI-64 64-bit Global Individual Asset Identifier [EPC-Tag-Data]
RFID-GID-96 96-bit Global Identifier [EPC-Tag-Data]
RFID-SGTIN-96 96-bit Serialized Global Trade Item Number [EPC-Tag-Data]
RFID-SSCC-96 96-bit Serial Shipping Container [EPC-Tag-Data]
RFID-GLN-96 96-bit Global Location Number [EPC-Tag-Data]
RFID-GRAI-96 96-bit Global Returnable Asset Identifier [EPC-Tag-Data]
RFID-DOD-96 96-bit Department of Defense ID [RFID-DoD-96]
RFID-GIAI-96 96-bit Global Individual Asset Identifier [EPC-Tag-Data]
RFID-GID-URI Global Identifier represented as URI [EPC-Tag-Data]
RFID-SGTIN-URI Serialized Global Trade Item Number represented as URI [EPC-Tag-Data]
RFID-SSCC-URI Serial Shipping Container represented as URI [EPC-Tag-Data]
RFID-GLN-URI Global Location Number represented as URI [EPC-Tag-Data]
RFID-GRAI-URI Global Returnable Asset Identifier represented as URI [EPC-Tag-Data]
RFID-DOD-URI Department of Defense ID represented as URI [RFID-DoD-96]
RFID-GIAI-URI Global Individual Asset Identifier represented as URI [EPC-Tag-Data]

3. Security Considerations

This document does not introduce any security mechanisms, and does not have any impact on existing security mechanisms. Insofar as the selection of a security association may be dependent on the exact form of a mobile node identifier, additional specification may be necessary when the new identifier types are employed with the general AAA mechanisms for mobile node authorizations.

Some identifiers (e.g., IMSI) are considered to be private information. If used in the MNID extension as defined in this document, the packet including the MNID extension should be encrypted so that personal information or trackable identifiers would not be inadvertently disclosed to passive observers. Operators can potentially apply IPsec Encapsulating Security Payload (ESP) with confidentiality and integrity protection for protecting the location information.

Moreover, MNIDs containing sensitive identifiers might only be used for signaling during initial network entry. Subsequent binding update exchanges might then rely on a temporary identifier allocated during the initial network entry, perhaps using mechanisms not standardized within the IETF. Managing the association between long-lived and temporary identifiers is outside the scope of this document.

4. IANA Considerations

The new mobile node identifier types defined in the document should be assigned values from the "Mobile Node Identifier Option Subtypes" registry. The following values should be assigned.

New Mobile Node Identifier Types

Identifier Type Identifier Type Number
IPv6 Address 2
EUI-48 address 5
EUI-64 address 6
12-15 reserved
16 reserved
RFID-GLN-64 19
RFID-DOD-64 21
23 reserved
RFID-GID-96 24
RFID-GLN-96 27
RFID-DOD-96 29
31 reserved
39-255 reserved

See Section 2 for additional information about the identifier types.

5. References

5.1. Normative References

[RFC2373] Hinden, R. and S. Deering, "IP Version 6 Addressing Architecture", RFC 2373, DOI 10.17487/RFC2373, July 1998.
[RFC3315] Droms, R., Bound, J., Volz, B., Lemon, T., Perkins, C. and M. Carney, "Dynamic Host Configuration Protocol for IPv6 (DHCPv6)", RFC 3315, DOI 10.17487/RFC3315, July 2003.
[RFC4122] Leach, P., Mealling, M. and R. Salz, "A Universally Unique IDentifier (UUID) URN Namespace", RFC 4122, DOI 10.17487/RFC4122, July 2005.
[RFC4283] Patel, A., Leung, K., Khalil, M., Akhtar, H. and K. Chowdhury, "Mobile Node Identifier Option for Mobile IPv6 (MIPv6)", RFC 4283, DOI 10.17487/RFC4283, November 2005.
[RFC4285] Patel, A., Leung, K., Khalil, M., Akhtar, H. and K. Chowdhury, "Authentication Protocol for Mobile IPv6", RFC 4285, DOI 10.17487/RFC4285, January 2006.
[RFC6355] Narten, T. and J. Johnson, "Definition of the UUID-Based DHCPv6 Unique Identifier (DUID-UUID)", RFC 6355, DOI 10.17487/RFC6355, August 2011.

5.2. Informative References

[EPC-Tag-Data] EPCglobal Inc., , "EPC(TM) Generation 1 Tag Data Standards Version 1.1 Rev.1.27 http://www.gs1.org/gsmp/kc/epcglobal/tds/tds_1_1_rev_1_27-standard-20050510.pdf", January 2005.
[IEEE802] IEEE, , "IEEE Std 802: IEEE Standards for Local and Metropolitan Networks: Overview and Architecture", 2001.
[RFC3588] Calhoun, P., Loughney, J., Guttman, E., Zorn, G. and J. Arkko, "Diameter Base Protocol", RFC 3588, DOI 10.17487/RFC3588, September 2003.
[RFID-DoD-96] Department of Defense, , "United States Department of Defense Suppliers Passive RFID Information Guide (Version 15.0)", January 2010.
[ThreeGPP-IDS] 3rd Generation Partnership Project, , "3GPP Technical Specification 23.003 V8.4.0: Technical Specification Group Core Network and Terminals; Numbering, addressing and identification (Release 8)", March 2009.

Authors' Addresses

Charles E. Perkins Futurewei Inc. 2330 Central Expressway Santa Clara, CA 95050 USA Phone: +1-408-330-4586 EMail: charliep@computer.org
Vijay Devarapalli Vasona Networks 2900 Lakeside Drive, Suite 180 Santa Clara, CA 95054 USA