Extensible Authentication Protocol (EAP) Attributes for Wi-Fi Integration with the Evolved Packet Core
RFC 7458

 
Document Type RFC - Informational (February 2015; No errata)
Last updated 2015-03-13
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Internet Engineering Task Force (IETF)                       R. Valmikam
Request for Comments: 7458                                  Unaffiliated
Category: Informational                                        R. Koodli
ISSN: 2070-1721                                                    Intel
                                                           February 2015

        Extensible Authentication Protocol (EAP) Attributes for
             Wi-Fi Integration with the Evolved Packet Core

Abstract

   With Wi-Fi emerging as a crucial access network for mobile service
   providers, it has become important to provide functions commonly
   available in 3G and 4G networks in Wi-Fi access networks as well.
   Such functions include Access Point Name (APN) Selection, multiple
   Packet Data Network (PDN) connections, and seamless mobility between
   Wi-Fi and 3G/4G networks.

   The EAP Authentication and Key Agreement (EAP-AKA), and EAP-AKA',
   protocol is required for mobile devices to access the mobile Evolved
   Packet Core (EPC) via Wi-Fi networks.  This document defines a few
   new EAP attributes to enable the above-mentioned functions in such
   networks.  The attributes are exchanged between a client (such as a
   Mobile Node (MN)) and its network counterpart (such as an
   Authentication, Authorization, and Accounting (AAA) server) in the
   service provider's infrastructure.

Status of This Memo

   This document is not an Internet Standards Track specification; it is
   published for informational purposes.

   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).  Not all documents
   approved by the IESG are 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/rfc7458.

Valmikam & Koodli             Informational                     [Page 1]
RFC 7458       EAP Attributes for Wi-Fi - EPC Integration  February 2015

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
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   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1. Introduction ....................................................3
      1.1. APN Selection ..............................................4
      1.2. Multiple APN Connectivity ..................................4
      1.3. Wi-Fi to E-UTRAN Mobility ..................................4
   2. Terminology .....................................................4
   3. Protocol Overview ...............................................5
      3.1. Brief Introduction to EAP ..................................5
      3.2. IEEE 802.11 Authentication Using EAP over 802.1X ...........5
   4. New EAP Attributes ..............................................7
      4.1. APN Selection ..............................................7
      4.2. Connectivity Type ..........................................7
      4.3. Wi-Fi to UTRAN/E-UTRAN Mobility ............................8
      4.4. MN Serial ID ...............................................8
   5. Attribute Extensions ............................................8
      5.1. AT_VIRTUAL_NETWORK_ID ......................................8
      5.2. AT_VIRTUAL_NETWORK_REQ .....................................9
      5.3. AT_CONNECTIVITY_TYPE ......................................10
      5.4. AT_HANDOVER_INDICATION ....................................11
      5.5. AT_HANDOVER_SESSION_ID ....................................11
      5.6. AT_MN_SERIAL_ID ...........................................12
   6. Security Considerations ........................................13
   7. IANA Considerations ............................................14
   8. References .....................................................15
      8.1. Normative References ......................................15
      8.2. Informative References ....................................16
   Acknowledgments ...................................................18
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