WiMAX Diameter Applications

Release 1.0 of the WiMAX Forum network architecture utilizes RADIUS based Authentication, Authorization and Accounting (AAA) protocols. Release 1.5 introduce Diameter AAA protocols. As part of this architecture, the interfaces based on the Diameter protocol requires the definition of the following Diameter applications: This application authenticates, authorizes, network access of devices between the ASN-GW and the Diameter Server in the CSN. Part of the authorization includes IP and QoS bootstrapping. This application is used for accounting purposes between the ASN-GW or Home Agent and the Accounting server. This application is used to authenticate and authorize Mobile IPv4 service between the Home Agent and the Diameter server. This application is used to authenticate and authorize Mobile IPv6 service between the Home Agent and the Diameter server. This application is used to obtain keys used to secure DHCP interactions between the DHCP Relay and the DHCP Server. This application is used to authenticate and authorize location requester seeking location information about a specific WiMAX devices. This application is used to authenticate and authorize location requester seeking location information about a specific WiMAX devices. As well, the application supports command for fetching measurement reports from the ASN. This application is used for the policy and charging control in a WiMAX network when WiMAX PCRF and ASN are interacting. This application is used for Diameter based offline charging in WiMAX networks when the ASN interacts with the CSN. This application is used for Diameter based offline charging in WiMAX networks when AAA provides accounting records to an OFCS. This application is used for Diameter based online charging in WiMAX networks when the ASN interacts with the Online Charging System (OCS).

The base Diameter specification (Section1.4 of ) defines most of the terminology used in this document.

The WiMAX Network Access Authentication and Authorization Diameter application requires the allocation of command code values for the following command pairs: WiMAX-Diameter-EAP-Request/Answer (WDER/WDEA) WiMAX-Change-of-Authorization-Request/Answer (WCAR/WCAA) WiMAX-Reauthentication-Request/Answer (WRAR/WRAA) WiMAX-Session-Termination-Request/Answer (WSTR/WSTA) WiMAX-Abort-Session-Request/Answer (WASR/WASA)

The WiMAX Network Accounting Diameter Application re-uses the commands defined in Diameter Base .

The WiMAX MIP4 Diameter application requires the allocation of command code values for the following command pairs: WiMAX-Home-Agent-IPv4-Request/Answer (WHA4R/WHA4A)

The WM6DA application requires the allocation of command code values for the following command pairs: WiMAX-Home-Agent-IPv6-Request/Answer (WHA6R/WHA6A)

The WiMAX DHCP Diameter application requires the allocation of command code values for the following command pairs: WiMAX-DHCP-Request/Answer (WDHCPR/WDHCPA)

The WiMAX-Location-Authentication-Authorization Diameter Application requires the allocation of command code values for the following command pairs: WiMAX-LAA-Request/Answer (WLAAR/WLAA) WiMAX-Location-Accounting-Request/Answer (WLACR/WLACA) WiMAX-Location-Measurement-Query-Request/Answer (WLMQR/WLMQA)

The WiMAX Policy and Charging Control R3 Policies Diameter Application is based on 3GPP Gx and reuses the commands defined in Diameter Credit-Control Application respectively commands defined in Diameter Base .

The WiMAX Policy and Charging Control R3 Offline Charging Diameter Application reuses the commands defined in Diameter Base .

The WiMAX Policy and Charging Control R3 Offline Charging Diameter Prime Application reuses the commands defined in Diameter Base .

The WiMAX Policy and Charging Control R3 Online Charging Diameter Application reuses the commands defined in Diameter Credit-Control Application respectively commands defined in Diameter Base .

This section provides guidance to the Internet Assigned Numbers Authority (IANA) regarding registration of values related to the Diameter protocol, in accordance with BCP 26 . This document defines values in the namespace that has been defined in the Diameter Base specification . Section 11 of (IANA Considerations) details the assignment criteria. IANA is requested to allocate the following Vendor Specific Application code values as per section 11.3 of :

IANA is requested to allocate the following command code values:

This document describes command codes used in applications which build on top of the Diameter base protocol and the same security considerations described in are applicable to this document. No further extensions are required beyond the security mechanisms offered by .

We would like to thank Dan Romascanu for volunteering to be AD sponsor and Hannes Tschofenig for volunteering to be Document Shepherd.