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RADIUS Attributes for IEEE 802 Networks
draft-ietf-radext-ieee802ext-03

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Document Type
This is an older version of an Internet-Draft that was ultimately published as RFC 7268.
Authors Dr. Bernard D. Aboba , Jouni Malinen , Paul Congdon , Joseph A. Salowey , Mark Jones
Last updated 2012-10-21
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draft-ietf-radext-ieee802ext-03
RADEXT Working Group                                       Bernard Aboba
INTERNET-DRAFT                                     Microsoft Corporation
Category: Proposed Standard                                Jouni Malinen
Expires: April 21, 2013                             Devicescape Software
Updates: 4072                                               Paul Congdon
                                                 Hewlett Packard Company
                                                          Joseph Salowey
                                                           Cisco Systems
                                                              Mark Jones
                                                                  Amdocs
                                                         21 October 2012

                RADIUS Attributes for IEEE 802 Networks
                  draft-ietf-radext-ieee802ext-03.txt

Abstract

   RFC 3580 provides guidelines for the use of the Remote Authentication
   Dialin User Service (RADIUS) within IEEE 802 local area networks
   (LANs).  This document proposes additional attributes for use within
   IEEE 802 networks, as well as clarifications on the usage of the EAP-
   Key-Name attribute, updating RFC 4072.  The attributes defined in
   this document are usable both within RADIUS and Diameter.

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), its areas, and its working groups.  Note that
   other groups may also distribute working documents as Internet-
   Drafts.

   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."

   The list of current Internet-Drafts can be accessed at
   http://www.ietf.org/ietf/1id-abstracts.txt.

   The list of Internet-Draft Shadow Directories can be accessed at
   http://www.ietf.org/shadow.html.

   This Internet-Draft will expire on April 21, 2013.

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Copyright Notice

   Copyright (c) 2012 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.

   This document may contain material from IETF Documents or IETF
   Contributions published or made publicly available before November
   10, 2008.  The person(s) controlling the copyright in some of this
   material may not have granted the IETF Trust the right to allow
   modifications of such material outside the IETF Standards Process.
   Without obtaining an adequate license from the person(s) controlling
   the copyright in such materials, this document may not be modified
   outside the IETF Standards Process, and derivative works of it may
   not be created outside the IETF Standards Process, except to format
   it for publication as an RFC or to translate it into languages other
   than English.

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Table of Contents

1.     Introduction ..........................................    4
   1.1       Terminology .....................................    4
   1.2       Requirements Language ...........................    5
2.     RADIUS attributes .....................................    5
   2.1       Allowed-Called-Station-Id .......................    5
   2.2       EAP-Key-Name ....................................    7
   2.3       EAP-Peer-Id .....................................    8
   2.4       EAP-Server-Id ...................................    9
   2.5       Mobility-Domain-Id ..............................   10
   2.6       Preauth-Timeout .................................   10
   2.7       Network-Id-Name .................................   11
   2.8       Access-Info .....................................   12
   2.9       WLAN-SSID .......................................   13
  2.10       WLAN-HESSID .....................................   14
  2.11       WLAN-Venue-Info .................................   14
  2.12       WLAN-Venue-Language .............................   15
  2.13       WLAN-Venue-Name .................................   16
  2.14       WLAN-Reason-Codes ...............................   17
  2.15       WLAN-Pairwise-Cipher ............................   18
  2.16       WLAN-Group-Cipher ...............................   19
  2.17       WLAN-AKM-Suite ..................................   19
  2.18       WLAN-Group-Mgmt-Cipher ..........................   20
  2.19       WLAN-RF-Band ....................................   21
3.     Table of attributes ...................................   22
4.     Diameter Considerations ...............................   23
5.     IANA Considerations ...................................   25
6.     Security Considerations ...............................   26
7.     References ............................................   26
  7.1  Normative References ..................................   26
  7.2  Informative References ................................   27
ACKNOWLEDGMENTS ..............................................   27
AUTHORS' ADDRESSES ...........................................   28

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1.  Introduction

   In situations where it is desirable to centrally manage
   authentication, authorization and accounting (AAA) for IEEE 802
   [IEEE-802] networks, deployment of a backend authentication and
   accounting server is desirable.  In such situations, it is expected
   that IEEE 802 authenticators will function as AAA clients.

   "IEEE 802.1X Remote Authentication Dial In User Service (RADIUS)
   Usage Guidelines" [RFC3580] defined guidelines for the use of the
   Remote Authentication Dialin User Service (RADIUS) within networks
   utilizing IEEE 802 local area networks.  This document defines
   additional attributes suitable for usage by IEEE 802 authenticators
   acting as AAA clients.  The attributes defined in this document are
   usable both within RADIUS and Diameter.

1.1.  Terminology

This document uses the following terms:

Access Point (AP)
               A Station that provides access to the distribution
               services via the wireless medium for associated Stations.

Association    The service used to establish Access Point/Station
               mapping and enable Station invocation of the distribution
               system services.

authenticator  An authenticator is an entity that require authentication
               from the supplicant.  The authenticator may be connected
               to the supplicant at the other end of a point-to-point
               LAN segment or wireless link.

authentication server
               An authentication server is an entity that provides an
               authentication service to an authenticator.  This service
               verifies from the credentials provided by the supplicant,
               the claim of identity made by the supplicant.

Station (STA)  Any device that contains an IEEE 802.11 conformant medium
               access control (MAC) and physical layer (PHY) interface
               to the wireless medium (WM).

Supplicant     A supplicant is an entity that is being authenticated by
               an authenticator.  The supplicant may be connected to the
               authenticator at one end of a point-to-point LAN segment
               or 802.11 wireless link.

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1.2.  Requirements Language

   In this document, several words are used to signify the requirements
   of the specification.  The key words "MUST", "MUST NOT", "REQUIRED",
   "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED",  "MAY",
   and "OPTIONAL" in this document are to be interpreted as described in
   [RFC2119].

2.  RADIUS attributes

2.1.  Allowed-Called-Station-Id

   Description

      The Allowed-Called-Station-Id Attribute allows the RADIUS server
      to specify the authenticator MAC addresses and/or networks to
      which the user is allowed to connect.  One or more Allowed-Called-
      Station-Id attributes MAY be included in an Access-Accept or CoA-
      Request packet.

      A summary of the Allowed-Called-Station-Id Attribute format is
      shown below.  The fields are transmitted from left to right.

       0                   1                   2                   3
       0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
      |     Type      |  Length       |            String...
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

   Code

      TBD1

   Length

      >=3

   String

      The String field is one or more octets, containing the layer 2
      endpoint that the user's call is allowed to be terminated on, as
      specified in the definition of Called-Station-Id in [RFC2865]
      Section 5.30 and [RFC3580] Section 3.20.  In the case of IEEE 802,
      the Allowed-Called-Station-Id Attribute is used to store the
      Medium Access Control (MAC) address in ASCII format (upper case
      only), with octet values separated by a "-".  Example:
      "00-10-A4-23-19-C0".  Where restrictions on both the network and
      authenticator MAC address usage are intended, the network name

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      MUST be appended to the authenticator MAC address, separated from
      the MAC address with a ":".  Example: "00-10-A4-23-19-C0:AP1".
      Where no MAC address restriction is intended, the MAC address
      field MUST be omitted, but the network name field MUST be
      included.  Example: "AP1".  Within IEEE 802.11 [IEEE-802.11], the
      SSID constitutes the network name; within IEEE 802.1X
      [IEEE-802.1X], the Network-Id Name (NID-Name) constitutes the
      network name.  Since a NID-Name can be up to 253 octets in length,
      when used with [IEEE-802.1X], there may not be sufficient room
      within the Allowed-Called-Station-Id Attribute to include a MAC
      address.

      If the user attempts to connect to the NAS from a Called-Station-
      Id that does not match one of the Allowed-Called-Station-Id
      attributes, then the user MUST NOT be permitted to access the
      network.

      The Allowed-Called-Station-Id Attribute can be useful in the
      following situations:

[1]     Where users can connect to a NAS without an Access-Request being
        sent by the NAS to the RADIUS server (e.g. where key caching is
        supported within IEEE 802.11 or IEEE 802.1X [IEEE-802.1X]).  To
        ensure that an attacker cannot gain entry to a network they have
        not authenticated to, key cache entries are typically only
        usable within the network to which the user originally
        authenticated (e.g. the originally selected network name is
        implicitly attached to the key cache entry).  Also, if it is
        desired that access to a network name not be available from a
        particular authenticator MAC address, then the authenticator can
        be set up not to advertise that particular network name.

[2]     Where pre-authentication may be supported (e.g.  IEEE 802.1X
        pre-authentication).  In this situation, the network name
        typically will not be included in a Called-Station-Id Attribute
        within the Access-Request, so that the RADIUS server will not
        know the network that the user is attempting to access.  As a
        result, the RADIUS server may desire to restrict the networks to
        which the user can subsequently connect.

[3]     Where the network portion of the Called-Station-Id is present
        within an Access-Request, the RADIUS server can desire to
        authorize access to a network different from the one that the
        user selected.

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2.2.  EAP-Key-Name

   Description

      The EAP-Key-Name Attribute, defined in "Diameter Extensible
      Authentication Protocol (EAP) Application" [RFC4072], contains the
      EAP Session-Id, as described in "Extensible Authentication
      Protocol (EAP) Key Management Framework" [RFC5247].  Exactly how
      this Attribute is used depends on the link layer in question.

      It should be noted that not all link layers use this name and
      existing EAP method implementations do not generate it.  An EAP-
      Key-Name Attribute MAY be included within Access-Request, Access-
      Accept and CoA-Request packets.  A summary of the EAP-Key-Name
      Attribute format is shown below.  The fields are transmitted from
      left to right.

       0                   1                   2                   3
       0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
      |     Type      |  Length       |          String...
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

   Code

      102 [RFC4072]

   Length

      >=3

   String

      The String field is one or more octets, containing the EAP
      Session-Id, as defined in "Extensible Authentication Protocol
      (EAP) Key Management Framework" [RFC5247].  Since the NAS operates
      as a pass-through in EAP, it cannot know the EAP Session-Id before
      receiving it from the RADIUS server.  As a result, an EAP-Key-Name
      Attribute sent in an Access-Request MUST only contain a single NUL
      character.  A RADIUS server receiving an Access-Request with an
      EAP-Key-Name Attribute containing anything other than a single NUL
      character MUST silently discard the Attribute.  In addition, the
      RADIUS server SHOULD include this Attribute in an Access-Accept or
      CoA-Request only if an EAP-Key-Name Attribute was present in the
      Access-Request.

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2.3.  EAP-Peer-Id

   Description

      The EAP-Peer-Id Attribute contains a Peer-Id generated by the EAP
      method.  Exactly how this name is used depends on the link layer
      in question.  See [RFC5247] for more discussion.  The EAP-Peer-Id
      Attribute MAY be included in Access-Request, Access-Accept and
      Accounting-Request packets.  More than one EAP-Peer-Id Attribute
      MUST NOT be included in an Access-Request; one or more EAP-Peer-Id
      attributes MAY be included in an Access-Accept.

      It should be noted that not all link layers use this name, and
      existing EAP method implementations do not generate it.  Since the
      NAS operates as a pass-through in EAP [RFC3748], it cannot know
      the EAP-Peer-Id before receiving it from the RADIUS server.  As a
      result, an EAP-Peer-Id Attribute sent in an Access-Request MUST
      only contain a single NUL character.  A home RADIUS server
      receiving an Access-Request an EAP-Peer-Id Attribute containing
      anything other than a single NUL character MUST silently discard
      the Attribute.  In addition, the home RADIUS server SHOULD include
      one or more EAP-Peer-Id attributes in an Access-Accept only if an
      EAP-Peer-Id Attribute was present in the Access-Request.  A
      summary of the EAP-Peer-Id Attribute format is shown below.  The
      fields are transmitted from left to right.

       0                   1                   2                   3
       0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
      |     Type      |  Length       |            String...
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

   Code

      TBD2

   Length

      >=3

   String

      The String field is one or more octets containing a EAP Peer-Id
      exported by the EAP method.  For details, see [RFC5247] Appendix
      A.  A robust implementation SHOULD support the field as
      undistinguished octets.

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2.4.  EAP-Server-Id

   Description

      The EAP-Server-Id Attribute contains a Server-Id generated by the
      EAP method.  Exactly how this name is used depends on the link
      layer in question.  See [RFC5247] for more discussion.  The EAP-
      Server-Id Attribute is only allowed in Access-Request, Access-
      Accept, and Accounting-Request packets.  More than one EAP-Server-
      Id Attribute MUST NOT be included in an Access-Request; one or
      more EAP-Server-Id attributes MAY be included in an Access-Accept.

      It should be noted that not all link layers use this name, and
      existing EAP method implementations do not generate it.  Since the
      NAS operates as a pass-through in EAP [RFC3748], it cannot know
      the EAP-Server-Id before receiving it from the RADIUS server.  As
      a result, an EAP-Server-Id Attribute sent in an Access-Request
      MUST contain only a single NUL character.  A home RADIUS server
      receiving in an Access-Request an EAP-Server-Id Attribute
      containing anything other than a single NUL character MUST
      silently discard the Attribute.  In addition, the home RADIUS
      server SHOULD include this Attribute an Access-Accept only if an
      EAP-Server-Id Attribute was present in the Access-Request.  A
      summary of the EAP-Server-Id Attribute format is shown below.  The
      fields are transmitted from left to right.

       0                   1                   2                   3
       0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
      |     Type      |  Length       |            String...
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

   Code

      TBD3

   Length

      >=3

   String

      The String field is one or more octets, containing a EAP Server-Id
      exported by the EAP method.  For details, see [RFC5247] Appendix
      A.  A robust implementation SHOULD support the field as
      undistinguished octets.

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2.5.  Mobility-Domain-Id

   Description

      A single Mobility-Domain-Id Attribute MAY be included in an
      Access-Request or Accounting-Request, in order to enable the NAS
      to provide the RADIUS server with the Mobility Domain Identifier
      (MDID), defined in IEEE 802.11 [IEEE-802.11].  A summary of the
      Mobility-Domain-Id Attribute format is shown below.  The fields
      are transmitted from left to right.

       0                   1                   2                   3
       0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
      |     Type      |    Length     |             Value
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
                 Value                |
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

   Code

      TBD4

   Length

      6

   Value

      The Value field is four octets, containing a 32-bit unsigned
      integer.  Since the Mobility Domain Identifier defined in IEEE
      802.11 [IEEE-802.11] is only two octets in length, the two most
      significant octets MUST be set to zero by the sender, and are
      ignored by the receiver;  the two least significant octets contain
      the MDID value.

2.6.  Preauth-Timeout

   Description

      This Attribute sets the maximum number of seconds which pre-
      authentication state is required to be kept by the NAS, without
      being utilized within a user session.  For example, when
      [IEEE-802.11] pre-authentication is used, if a user has not
      attempted to utilize the Pairwise Master Key (PMK) derived as a
      result of pre-authentication within the time specified by the
      Preauth-Timeout Attribute, the PMK MAY be discarded by the Access
      Point.  However, once the session is underway, the Preauth-Timeout

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      Attribute has no bearing on the maximum session time for the user,
      or the maximum time during which key state may be kept prior to
      re-authentication.  This is determined by the Session-Timeout
      Attribute, if present.

      This Attribute MAY be sent by the server to the NAS in an Access-
      Accept.  A summary of the Preauth-Timeout Attribute format is
      shown below.  The fields are transmitted from left to right.

       0                   1                   2                   3
       0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
      |     Type      |    Length     |             Value
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
                 Value (cont)         |
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

   Code

      TBD5

   Length

      6

   Value

      The field is 4 octets, containing a 32-bit unsigned integer
      encoding the maximum time in seconds that pre-authentication state
      should be retained by the NAS.

2.7.  Network-Id-Name

   Description

      The Network-Id-Name Attribute is utilized by implementations of
      IEEE-802.1X [IEEE-802.1X] to specify the name of a Network-Id
      (NID-Name).

      Unlike the IEEE 802.11 SSID (which is a maximum of 32 octets in
      length), the NID-Name may be up to 253 octets in length.
      Consequently, if the MAC address is included within the Called-
      Station-Id Attribute, it is possible that there will not be enough
      remaining space to encode the NID-Name as well.  Therefore when
      used with IEEE 802.1X [IEEE-802.1X], the Called-Station-Id
      Attribute SHOULD contain only the MAC address, with the Network-
      Id-Name Attribute used to transmit the NID-Name.  The Network-Id-
      Name Attribute MUST NOT be used to encode the IEEE 802.11 SSID; as

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      noted in [RFC3580], the Called-Station-Id Attribute is used for
      this purpose.

      Zero or one Network-Id-Name Attribute is permitted within a RADIUS
      Access-Request or Accounting-Request packet.  When included within
      an Access-Request packet, the Network-Id-Name Attribute represents
      a hint of the NID-Name to which the Supplicant should be granted
      access.  In order to indicate which network names the Supplicant
      is permitted to access, the Allowed-Called-Station-Id Attribute is
      provided within an Access-Accept.  When included within an
      Accounting-Request packet, the Network-Id-Name Attribute
      represents the NID-Name to which the Supplicant has been granted
      access.

      A summary of the Network-Id-Name Attribute format is shown below.
      The fields are transmitted from left to right.

       0                   1                   2                   3
       0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
      |     Type      |  Length       |            String...
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

   Code

      TBD6

   Length

      >=3

   String

      The String field is one or more octets, containing a NID-Name.
      For details, see [IEEE-802.1X].  A robust implementation SHOULD
      support the field as undistinguished octets.

2.8.  Access-Info

   Description

      The Access-Info Attribute is utilized by implementations of
      IEEE-802.1X [IEEE-802.1X] to specify the Access status information
      field within an Access Information Type Length Value Tuple (TLV)
      to be sent to the user within MACsec Key Agreement (MKA) or EAPoL-
      Announcement frames.

      A single Access-Info Attribute is permitted within a RADIUS

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      Access-Accept, Access-Challenge, Access-Reject or Accounting-
      Request packet.

      A summary of the Access-Info Attribute format is shown below.  The
      fields are transmitted from left to right.

       0                   1                   2                   3
       0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
      |     Type      |    Length     |             Value
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
                 Value                |
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

   Code

      TBD7

   Length

      6

   Value

      The Value field is four octets containing a 32-bit unsigned
      integer.  Since the Access status information field of the Access
      Information TLV defined in [IEEE-802.1X] Section 11.12.2 is only
      two octets in length, the two most significant octets of the Value
      field MUST be set to zero by the sender and are ignored by the
      receiver.

2.9.  WLAN-SSID

   Description

      The WLAN-SSID attribute contains the Service Set Identifier (SSID)
      which identifies a specific 802.11 extended service set (ESS).

      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
      |     Type      |  Length       |          String...
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

   Code

      TBD8

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   Length

      3 to 34

   String

      The String field is between 1 and 32 octets in length.  The actual
      format of the information is site or application specific, and a
      robust implementation SHOULD support the field as undistinguished
      octets.

2.10.  WLAN-HESSID

   Description

      The WLAN-HESSID attribute contains a 6-octet MAC address that
      identifies the Homogenous Extended Service Set. The HESSID is a
      globally unique identifier that in conjunction with the WLAN-SSID,
      may be used to provide network identification for a subscription
      service provider network (SSPN).

      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
      |     Type      |    Length     |          String...
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

   Code

      TBD9

   Length

      19

   String

      The String field is encoded in upper-case ASCII characters with
      the octet values separated by dash characters, as described in
      RFC3580 [RFC3580].  Example: "00-10-A4-23-19-C0".

2.11.  WLAN-Venue-Info

   Description

      The WLAN-Venue-Info attribute identifies the category of venue
      hosting the WLANi.

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       0                   1                   2                   3
       0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
      |     Type      |    Length     |             Value
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
                 Value                |
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

   Code

      TBD10

   Length

      4

   Value

      The Value field is four octets, containing a 32-bit unsigned
      integer.  The two most significant octets MUST be set to zero by
      the sender, and are ignored by the receiver; the two least
      significant octets contain the Venue-Group and Venue-Type fields.

      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
      |            Reserved           |  Venue-Group  |  Venue-Type   |
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

   Venue-Group

      The Venue-Group field is a single octet and describes the broad
      category of the venue, e.g.  "Assembly".  See IEEE 802.11
      [IEEE-802.11] for Venue-Group codes and descriptions.

   Venue-Type

      The Venue-Type field is a single octet and describes the venue in
      a finer granularity within the Venue-Group, e.g.  "Library".  See
      IEEE 802.11 [IEEE-802.11] for Venue-Type codes and descriptions.

2.12.  WLAN-Venue-Language

   Description

      The WLAN-Venue-Language attribute is an ISO-14962-1997
      [ISO-14962-1997] encoded string that defines the language used in
      the WLAN-Venue-Name attribute.  Zero or more WLAN-Venue-Language

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      attributes may be included in an Access-Request and each one
      indicates the language of the WLAN-Venue-Name attribute that
      follows it.

      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
      |     Type      |    Length     |         String...
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
        String (cont) |
      +-+-+-+-+-+-+-+-+

   Code

      TBD11

   Length

      5

   String

      The String field is a two or three character language code
      selected from ISO-639 [ISO-639].  A two character language code
      has a zero ("null" in ISO-14962-1997) appended to make it 3 octets
      in length.

2.13.  WLAN-Venue-Name

   Description

      The WLAN-Venue-Name attribute provides additional metadata on the
      BSS.  For example, this information may be used to assist a user
      in selecting the appropriate BSS with which to associate.  Zero or
      more WLAN-Venue-Name attributes may be included in an Access-
      Request in the same or different languages.

      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
      |     Type      |    Length     |          String...
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

   Code

      TBD12

   Length

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      >=3

   String

      The String field is a UTF-8 formatted field containing the venue's
      name.  The maximum length of this field is 252 octets.

2.14.  WLAN-Reason-Code

   Description

      The WLAN-Reason-Code Attribute contains information on the reason
      why a station has been dissaciated or de-authenticated.  This can
      occur due to policy or for reasons related to the user's
      subscription.

      A WLAN-Reason-Code Attribute MAY be included within an Access-
      Reject or Disconnect-Request packet.  Upon receipt of an Access-
      Reject or Disconnect-Request packet containing a WLAN-Reason-Code
      Attribute, the WLAN-Reason-Code value is copied by the Access
      Point into the Reason code field of a Disassociation or
      Deauthentication frame (see clause 8.3.3.4 and 8.3.3.12
      respectively in [IEEE- 802.11]), which is subsequently transmitted
      to the station.  In order to provide information within an
      Accounting-Request on why a station has been disassociated or de-
      authenticated, the Acct-Termination-Cause Attribute is used,
      rather than the WLAN-Reason-Code Attribute.  A summary of the
      WLAN-Reason-Code Attribute format is shown below.  The fields are
      transmitted from left to right.

       0                   1                   2                   3
       0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
      |     Type      |  Length       |             Value
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
                 Value                |
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

   Code

      TBD13

   Length

      4

   Value

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      The Value field is a 32-bit unsigned integer drawn from Table 8-36
      in clause 8.4.1.7 of [IEEE-802.11].  The following Reason codes
      for public Wi-Fi access networks (and the corresponding additional
      values of the Acct-Terminate-Cause Attribute) were added by the
      IEEE 802.11u-2011 amendment:

      Reason Acct-       Description
      Code   Terminate-
      Value  Cause

      27        24       Disassociated because session
                         terminated by service provider request
      28        25       Disassociated because of lack
                         of service provider roaming agreement
      29        26       Requested service rejected because
                         of service provider cipher suite or
                         AKM requirement
      30        27       Requested service not authorized in
                         this location

2.15.  WLAN-Pairwise-Cipher

   Description

      The WLAN-Pairwise-Cipher Attribute contains information on the
      pairwise cipher suite used to establish the robust security
      network association (RSNA) between the AP and mobile device.

      A WLAN-Pairwise-Cipher Attribute MAY be included within Access-
      Request and Accounting-Request packets.  A summary of the WLAN-
      Pairwise-Cipher Attribute format is shown below.

      The fields are transmitted from left to right.

       0                   1                   2                   3
       0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
      |     Type      |  Length       |             Value
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
                 Value                |
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

   Code

      TBD14

   Length

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      4

   Value

      The Value field is four octets formatted in accordance with Figure
      8-187 with values drawn from Table 8-99 of [IEEE-802.11].

2.16.  WLAN-Group-Cipher

   Description

      The WLAN-Group-Cipher Attribute contains information on the group
      cipher suite used to establish the robust security network
      association (RSNA) between the AP and mobile device.

      A WLAN-Group-Cipher Attribute MAY be included within Access-
      Request and Accounting-Request packets.  A summary of the WLAN-
      Group-Cipher Attribute format is shown below.  The fields are
      transmitted from left to right.

       0                   1                   2                   3
       0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
      |     Type      |  Length       |             Value
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
                 Value                |
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

   Code

      TBD15

   Length

      4

   Value

      The Value field is four octets formatted in accordance with Figure
      8-187 with values drawn from Table 8-99 of [IEEE-802.11].

2.17.  WLAN-AKM-Suite

   Description

      The WLAN-AKM-Suite Attribute contains information on the
      authentication and key management suite used to establish the
      robust security network association (RSNA) between the AP and

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      mobile device.

      A WLAN-AKM-Suite Attribute MAY be included within Access-Request
      and Accounting-Request packets.  A summary of the WLAN-AKM-Suite
      Attribute format is shown below.  The fields are transmitted from
      left to right.

       0                   1                   2                   3
       0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
      |     Type      |  Length       |             Value
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
                 Value                |
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

   Code

      TBD16

   Length

      4

   Value

      The Value field is four octets formatted in accordance with Figure
      8-187 with values drawn from Table 8-101 of [IEEE-802.11].

2.18.  WLAN-Group-Mgmt-Cipher

   Description

      The WLAN-Group-Mgmt-Cipher Attribute contains information on group
      management cipher used to establish the robust security network
      association (RSNA) between the AP and mobile device.

      A WLAN-Group-Mgmt-Cipher Attribute MAY be included within Access-
      Request and Accounting-Request packets.  Presence of the attribute
      indicates that the station negotiated to use management frame
      protection during association.

      A summary of the WLAN-Group-Mgmt-Cipher Attribute format is shown
      below.  The fields are transmitted from left to right.

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       0                   1                   2                   3
       0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
      |     Type      |  Length       |     Value
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
                 Value                |
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

   Code

      TBD17

   Length

      4

   Value

      The Value field is four octets formatted in accordance with values
      drawn from Table ? of [IEEE-802.11].

2.19.  WLAN-RF-Band

   Description

      The WLAN-RF-Band Attribute contains information on the RF band
      used by the Access Point for transmission and reception of
      information to and from the mobile device.

      A WLAN-RF-Band Attribute MAY be included within Access-Request and
      Accounting-Request packets.  A summary of the WLAN-RF-Band
      Attribute format is shown below.  The fields are transmitted from
      left to right.

       0                   1                   2                   3
       0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
      |     Type      |  Length       |     Value
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
                 Value                |
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

   Code

      TBD18

   Length

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      4

   Value

      The Value field is 4 octets having a value chosen from the table
      below:

      Band ID value     Meaning
            0           TV white spaces
            1           Sub-1 GHz (excluding TV white spaces)
            2           2.4 GHz
            3           3.6 GHz
            4           4.9 and 5 GHz
            5           60 GHz

   [Note]: this table was copied from Table 8-53a in IEEE 802.11ad-d5.
   I'm not sure of the relative publication dates of this internet draft
   and IEEE 802.11ad-d5.  Since it's generally not recommended to
   reference a draft specification in an RFC, I've copied the table.  If
   we discover that the IEEE document will be published in time, then we
   could deleted the table and instead reference Table 8-53a in IEEE
   802.11ad.

3.  Table of attributes

   The following table provides a guide to which attributes may be found
   in which kinds of packets, and in what quantity.

   Access-  Access-  Access-  Access-
   Request  Accept   Reject   Challenge  #   Attribute
   0        0        0-1      0          49  Acct-Terminate-Cause
   0        0+       0        0        TBD1  Allowed-Called-Station-Id
   0-1      0-1      0        0        102   EAP-Key-Name
   0-1      0+       0        0        TBD2  EAP-Peer-Id
   0-1      0+       0        0        TBD3  EAP-Server-Id
   0-1      0        0        0        TBD4  Mobility-Domain-Id
   0-1      0-1      0        0        TBD5  Preauth-Timeout
   0-1      0        0        0        TBD6  Network-Id-Name
   0        0-1      0-1      0-1      TBD7  Access-Info
   0-1      0        0        0        TBD8  WLAN-SSID
   0-1      0        0        0        TBD9  WLAN-HESSID
   0-1      0        0        0       TBD10  WLAN-Venue-Info
   0-1      0        0        0       TBD11  WLAN-Venue-Language
   0-1      0        0        0       TBD12  WLAN-Venue-Name
   0        0        0-1      0       TBD13  WLAN-Reason-Code
   0-1      0        0        0       TBD14  WLAN-Pairwise-Cipher
   0-1      0        0        0       TBD15  WLAN-Group-Cipher
   0-1      0        0        0       TBD16  WLAN-AKM-Suite

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   Access-  Access-  Access-  Access-
   Request  Accept   Reject   Challenge  #   Attribute
   0-1      0        0        0       TBD17  WLAN-Group-Mgmt-Cipher
   0-1      0        0        0       TBD18  WLAN-RF-Band

   CoA- Dis-  Acct-
   Req  Req   Req  #      Attribute
   0     0-1  0-1  49     Acct-Terminate-Cause
   0+    0    0    TBD1   Allowed-Called-Station-Id
   0-1   0    0    102    EAP-Key-Name
   0     0    0+   TBD2   EAP-Peer-Id
   0     0    0+   TBD3   EAP-Server-Id
   0     0    0-1  TBD4   Mobility-Domain-Id
   0     0    0    TBD5   Preauth-Timeout
   0     0    0-1  TBD6   Network-Id-Name
   0-1   0    0-1  TBD7   Access-Info
   0     0    0-1  TBD8   WLAN-SSID
   0     0    0-1  TBD9   WLAN-HESSID
   0     0    0-1  TBD10  WLAN-Venue-Info
   0     0    0-1  TBD11  WLAN-Venue-Language
   0     0    0-1  TBD12  WLAN-Venue-Name
   0     0-1  0    TBD13  WLAN-Reason-Code
   0     0    0-1  TBD14  WLAN-Pairwise-Cipher
   0     0    0-1  TBD15  WLAN-Group-Cipher
   0     0    0-1  TBD16  WLAN-AKM-Suite
   0     0    0-1  TBD17  WLAN-Group-Mgmt-Cipher
   0     0    0-1  TBD18  WLAN-RF-Band

   The following table defines the meaning of the above table entries.

     0     This Attribute MUST NOT be present in packet.
     0+    Zero or more instances of this Attribute MAY be
           present in the packet.
     0-1   Zero or one instance of this Attribute MAY be
           present in the packet.

4.  Diameter Considerations

   The EAP-Key-Name Attribute is already defined as a RADIUS Attribute
   within Diameter EAP [RFC4072].  When used in Diameter, the other
   attributes defined in this specification can be used as Diameter AVPs
   from the Code space 1-255 (RADIUS Attribute compatibility space).  No
   additional Diameter Code values are therefore allocated.  The data
   types and flag rules for the attributes are as follows:

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                                            +---------------------+
                                            |    AVP Flag rules   |
                                            |----+-----+----+-----|----+
                                            |    |     |SHLD| MUST|    |
   Attribute Name               Value Type  |MUST| MAY | NOT|  NOT|Encr|
   -----------------------------------------|----+-----+----+-----|----|
   Allowed-Called-Station-Id     UTF8String | M  |  P  |    |  V  | Y  |
   EAP-Peer-Id                   UTF8String | M  |  P  |    |  V  | Y  |
   EAP-Server-Id                 UTF8String | M  |  P  |    |  V  | Y  |
   Mobility-Domain-Id            Unsigned32 | M  |  P  |    |  V  | Y  |
   Preauth-Timeout               Unsigned32 | M  |  P  |    |  V  | Y  |
   Network-Id-Name               UTF8String | M  |  P  |    |  V  | Y  |
   Access-Info                   Unsigned32 | M  |  P  |    |  V  | Y  |
   WLAN-SSID                     UTF8String | M  |  P  |    |  V  | Y  |
   WLAN-HESSID                   UTF8String | M  |  P  |    |  V  | Y  |
   WLAN-Venue-Info               Unsigned32 | M  |  P  |    |  V  | Y  |
   WLAN-Venue-Language           UTF8String | M  |  P  |    |  V  | Y  |
   WLAN-Venue-Name               UTF8String | M  |  P  |    |  V  | Y  |
   WLAN-Reason-Code              Unsigned32 | M  |  P  |    |  V  | Y  |
   WLAN-Pairwise-Cipher          Unsigned32 | M  |  P  |    |  V  | Y  |
   WLAN-Group-Cipher             Unsigned32 | M  |  P  |    |  V  | Y  |
   WLAN-AKM-Suite                Unsigned32 | M  |  P  |    |  V  | Y  |
   WLAN-Group-Mgmt-Cipher        Unsigned32 | M  |  P  |    |  V  | Y  |
   WLAN-RF-Band                  Unsigned32 | M  |  P  |    |  V  | Y  |
   -----------------------------------------|----+-----+----+-----|----|

   The attributes in this specification have no special translation
   requirements for Diameter to RADIUS or RADIUS to Diameter gateways;
   they are copied as is, except for changes relating to headers,
   alignment, and padding. See also [RFC3588] Section 4.1 and [RFC4005]
   Section 9.

   What this specification says about the applicability of the
   attributes for RADIUS Access-Request packets applies in Diameter to
   AA-Request [RFC4005] or Diameter-EAP-Request [RFC4072].  What is said
   about Access-Challenge applies in Diameter to AA-Answer [RFC4005] or
   Diameter-EAP-Answer [RFC4072] with Result-Code AVP set to
   DIAMETER_MULTI_ROUND_AUTH.

   What is said about Access-Accept applies in Diameter to AA-Answer or
   Diameter-EAP-Answer messages that indicate success.  Similarly, what
   is said about RADIUS Access-Reject packets applies in Diameter to AA-
   Answer or Diameter-EAP-Answer messages that indicate failure.

   What is said about COA-Request applies in Diameter to Re-Auth-Request
   [RFC4005].  What is said about Accounting-Request applies to Diameter
   Accounting- Request [RFC4005] as well.

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5.  IANA Considerations

   This document uses the RADIUS [RFC2865] namespace, see
   <http://www.iana.org/assignments/radius-types>.  This specification
   requires assignment of a RADIUS attribute types for the following
   attributes:

   Attribute                        Type
   =========                        ====
   Allowed-Called-Station-Id        TBD1
   EAP-Peer-Id                      TBD2
   EAP-Server-Id                    TBD3
   Mobility-Domain-Id               TBD4
   Preauth-Timeout                  TBD5
   Network-Id-Name                  TBD6
   Access-Info                      TBD7
   WLAN-SSID                        TBD8
   WLAN-HESSID                      TBD9
   WLAN-Venue-Info                 TBD10
   WLAN-Venue-Language             TBD11
   WLAN-Venue-Name                 TBD12
   WLAN-Reason-Code                TBD13
   WLAN-Pairwise-Cipher            TBD14
   WLAN-Group-Cipher               TBD15
   WLAN-AKM-Suite                  TBD16
   WLAN-Group-Mgmt-Cipher          TBD17
   WLAN-RF-Band                    TBD18

   This document also assigns the following additional values of the
   Acct-Terminate-Cause attribute:

   Acct-           Description
   Terminate-
   Cause
   ==========     ============
   24             Disassociated because session
                  terminated by service provider request
   25             Disassociated because of lack
                  of service provider roaming agreement
   26             Requested service rejected because
                  of service provider cipher suite or
                  AKM requirement
   27             Requested service not authorized in
                  this location

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6.  Security Considerations

   Since this document describes the use of RADIUS for purposes of
   authentication, authorization, and accounting in IEEE 802 networks,
   it is vulnerable to all of the threats that are present in other
   RADIUS applications.  For a discussion of these threats, see
   [RFC2607], [RFC2865], [RFC3162], [RFC3579], [RFC3580] and [RFC5176].

7.  References

7.1.  Normative references

[IEEE-802] IEEE Standards for Local and Metropolitan Area Networks:
           Overview and Architecture, ANSI/IEEE Std 802, 1990.

[IEEE-802.11]
           Information technology - Telecommunications and information
           exchange between systems - Local and metropolitan area
           networks - Specific Requirements Part 11:  Wireless LAN
           Medium Access Control (MAC) and Physical Layer (PHY)
           Specifications, IEEE Std. 802.11-2012, 2012.

[IEEE-802.1X]
           IEEE Standard for Local and Metropolitan Area Networks -
           Port-Based Network Access Control, IEEE 802.1X-2010, February
           2010.

[ISO-639]  ISO, "Codes for the Representation of Names of Languages".

[ISO-14962-1997]
           ISO, "Space data and information transfer systems - ASCII
           encoded English", 1997.

[RFC2119]  Bradner, S., "Key words for use in RFCs to Indicate
           Requirement Levels", RFC 2119, March, 1997.

[RFC2865]  Rigney, C., Rubens, A., Simpson, W. and S. Willens, "Remote
           Authentication Dial In User Service (RADIUS)", RFC 2865, June
           2000.

[RFC3588]  Calhoun, P., Loughney, J., Guttman, E., Zorn, G., and J.
           Arkko, "Diameter Base Protocol", RFC 3588, September 2003.

[RFC4072]  Eronen, P., Hiller, T. and G. Zorn, "Diameter Extensible
           Authentication Protocol (EAP) Application", RFC 4072, August
           2005.

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[RFC5247]  Aboba, B., Simon, D. and P. Eronen, "EAP Key Management
           Framework", RFC 5247, August 2008.

7.2.  Informative references

[RFC2607]  Aboba, B. and J. Vollbrecht, "Proxy Chaining and Policy
           Implementation in Roaming", RFC 2607, June 1999.

[RFC3162]  Aboba, B., Zorn, G. and D. Mitton, "RADIUS and IPv6", RFC
           3162, August 2001.

[RFC3579]  Aboba, B. and P. Calhoun, "RADIUS Support for Extensible
           Authentication Protocol (EAP)", RFC 3579, September 2003.

[RFC3580]  Congdon, P., Aboba, B., Smith, A., Zorn, G. and J. Roese,
           "IEEE 802.1X Remote Authentication Dial In User Service
           (RADIUS) Usage Guidelines", RFC 3580, September 2003.

[RFC3748]  Aboba, B., Blunk, L., Vollbrecht, J., Carlson, J. and H.
           Levkowetz, "Extensible Authentication Protocol (EAP)", RFC
           3748, June 2004.

[RFC4005]  Calhoun, P., Zorn, G., Spence, D., and D. Mitton, "Diameter
           Network Access Server Application", RFC 4005, August 2005.

[RFC5176]  Chiba, M., Dommety, G., Eklund, M., Mitton, D. and B. Aboba,
           "Dynamic Authorization Extensions to Remote Authentication
           Dial In User Service (RADIUS)", RFC 5176, January 2008.

Acknowledgments

   The authors would like to acknowledge Mick Seaman, Dorothy Stanley,
   Yoshihiro Ohba, and the contributors to the IEEE 802.1 and IEEE
   802.11 reviews of this document, for useful discussions.

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Authors' Addresses

   Bernard Aboba
   Microsoft Corporation
   One Microsoft Way
   Redmond, WA 98052

   EMail: bernard_aboba@hotmail.com

   Jouni Malinen
   EMail: j@w1.fi

   Paul Congdon
   Hewlett Packard Company
   HP ProCurve Networking
   8000 Foothills Blvd, M/S 5662
   Roseville, CA  95747

   Phone: +1 916 785 5753
   Fax:   +1 916 785 8478
   EMail: paul_congdon@hp.com

   Joseph Salowey
   Cisco Systems

   EMail: jsalowey@cisco.com

   Mark Jones
   Amdocs

   EMail:  mark@azu.ca

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