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RADIUS Attribute Harmonization and Informational guidelines for PWLAN

RADIUS Attribute Harmonization and Informational guidelines for PWLAN. Farid Adrangi Intel Corporation ( farid.adrangi@intel.com ). RADIUS Attributes Harmonization for PWLAN. Motivation RADIUS is a key component for successful deployments of Public Wireless LAN (PWLAN)

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RADIUS Attribute Harmonization and Informational guidelines for PWLAN

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  1. RADIUS Attribute Harmonization and Informational guidelines for PWLAN Farid Adrangi Intel Corporation ( farid.adrangi@intel.com )

  2. RADIUS Attributes Harmonization for PWLAN • Motivation • RADIUS is a key component for successful deployments of Public Wireless LAN (PWLAN) • Additional attributes are needed for RADIUS AAA in Public Wireless LANs (PWLAN). • Common understanding and standardization of these attributes is needed among various standard forum and groups (e.g., 3GPP, 3GPP2, WiFi Public Access, GSMA, IPDR) • Prevent fragmentation and promote multi-vendor and multi-operator interoperability • Current attributes • Location and operational ownership for PWLAN AN • Generic Application capability • Redirect • IP address type option capabilities • DNS Server IP address • Network Bandwidth Capabilities • Remote Destination IP address • IETF draft • Draft-adrangi-RADIUS-Attributes-Extension-for-PWLAN-00.txt

  3. RADIUS Informational Guidelines for PWLAN • Rationale • Identify Required RADIUS RFCs for PWLAN • Identify required Attributes for PWLAN • Clarify usage model / interpretation of attributes for PWLAN • IETF draft draft will be submitted

  4. Next Step • IETF Review of currently proposed attributes • The draft is under revision - a revised version will be submitted soon • IETF guidelines on how we can expedite standardization of the attributes

  5. Backup …

  6. Location and Operational Ownership Attributes • Rationale • Location aware billing • Location aware services • Location aware authentication • Easier integration into existing inter-operator billing systems • Attributes  • Access Network operator_name • Globally unique and coordinated identifiers for operators • E.g. TADIG code, NCC and MNC codes, or Realm – switch able with prefix escape codes (e.g. 00%REALM%…) • Access Network Location-name  • Contains E.164 Country Code, Telephone Area Code, City, and Access Network Type • Access Network Location-info  • Contains descriptive string about the hotspot to be printed into subscribers’ detailed bill

  7. Generic RADIUS Application Capability Attribute • Rationale • Enable a home RADIUS server to discover capabilities of a RADIUS client • The capabilities indicate standard-based applications (e.g., existing dynamic authorization Extension to Remote [5], future prepaid accounting model, etc.) • Attribute • Contains a comma-delimited list of URIs. • The URIs include a FQDN corresponding to the organization responsible for the document or standard to which compliance is claimed. For example: • www.ietf.org/rfc/3580;2548;2607 • www.3GPP.org/Release6.

  8. Redirect Attribute • Rationale • Enables home network to redirect the subscribers traffic to a specified server such as a web server. This feature is useful in situations such as replenishing a subscriber prepaid account etc. • The attribute should be available to be sent in Access Accept and CoA.

  9. IP Address Type Options Attribute • Rationale • Specify whether a routable (public) or non-routable (private) IP address should be assigned to a PWLAN client. • Attribute • Used by Access Network (in Access-Request) to indicate what IP address type options (private vs. public) are supported by an Access Network • Used by a Home Network (in Access-Accept) to specify what type of IP address (private, public) must be assigned to the PWLAN subscriber.

  10. Network Bandwidth Rate Attributes • Rationale • Enable home network to specify network bandwidth range (min, max) to be used for a PWLAN subscriber • Attribute(s) • Used (by Access Network) to indicate available Network bandwidth. • Used (by home network) to specify the desired network bandwidth rates (min, max) for a PWLAN subscriber • Used for accounting purposes

  11. Support for Specifying DNS server Address • Rationale • Specify the DNS server IP address to be used by PWLAN subscriber. • Attribute • Used (by home network) to specify a DNS server IP address for a PWLAN subscriber

  12. Remote IP services Attribute • Rationale • Enable a home network to restrict its subscribers accessing to certain remote IP addresses based on their subscription profiles. • Enable home network to audit remote IP addresses that its subscribers may connect to for accounting purposes. • Attribute • Contains one or more IP addresses (IP address range can be used), One or more port numbers

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