MN Identifier Types for RFC 4283 Mobile Node Identifier Option
draft-perkins-dmm-4283mnids-01.txt

Abstract

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 30, 2015.

Copyright Notice

Copyright (c) 2014 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
• 2. New Mobile Node Identifier Types
• 3. Security Considerations
• 4. IANA Considerations
• 5. References
• 5.1. Normative References
• 5.2. Informative References
• Authors' Addresses

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 commonly in use in various telecommunications standards, including the IMSI, P-TMSI, IMEI, GUTI, and IEEE MAC-layer addresses. In addition, we include the IPv6 address itself as a legitimate mobile node identifier.

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.

EPC supports several encoding systems or schemes including

• RFID-GID (Global Identifier),
• RFID-SGTIN (Serialized Global Trade Item Number),
• RFID-SSCC (Serial Shipping Container),
• RFID-GLN (Global Location Number),
• RFID-GRAI (Global Returnable Asset Identifier),
• RFID-DOD (Department of Defense) and
• RFID-GIAI (Global Individual Asset Identifier).

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.

• IPv6 Address [RFC2373]
• IMSI [ThreeGPP-IDS]
• P-TMSI [ThreeGPP-IDS]
• GUTI [ThreeGPP-IDS]
• EUI-48 address [IEEE802]
• EUI-64 address [IEEE802]
• DUID-LLT [RFC3315]
• DUID-EN [RFC3315]
• DUID-LL [RFC3315]
• DUID-UUID [RFC6355]
• 12-15 reserved
• 16 reserved
• RFID-SGTIN-64 [EPC-Tag-Data]
• RFID-SSCC-64 [EPC-Tag-Data]
• RFID-GLN-64 [EPC-Tag-Data]
• RFID-GRAI-64 [EPC-Tag-Data]
• RFID-DOD-64 [RFID-DoD-96]
• RFID-GIAI-64 [EPC-Tag-Data]
• 23 reserved
• RFID-GID-96 [EPC-Tag-Data]
• RFID-SGTIN-96 [EPC-Tag-Data]
• RFID-SSCC-96 [EPC-Tag-Data]
• RFID-GLN-96 [EPC-Tag-Data]
• RFID-GRAI-96 [EPC-Tag-Data]
• RFID-DOD-96 [RFID-DoD-96]
• RFID-GIAI-96 [EPC-Tag-Data]
• 31 reserved
• RFID-GID-URI [EPC-Tag-Data]
• RFID-SGTIN-URI [EPC-Tag-Data]
• RFID-SSCC-URI [EPC-Tag-Data]
• RFID-GLN-URI [EPC-Tag-Data]
• RFID-GRAI-URI [EPC-Tag-Data]
• RFID-DOD-URI [RFID-DoD-96]
• RFID-GIAI-URI [EPC-Tag-Data]
• 39-255 reserved

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. Moreover, MNIDs containing sensitive identifiers might only be used for signaling during initial network entry. Subsequent binding update exchanges would then rely on a temporary identifier allocated during the initial network entry.

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.