RFC 3580 RADIUS Attributes: IEEE 802.1X Remote Authentication Dial In User Service

RFC 3580 provides support for EAP and NEAP clients for the following RADIUS attributes:
  • Called-Station ID attribute: For IEEE 802.1X authenticators, the Called-Station ID stores the bridge or access point MAC address in upper case ASCII format, with octet values separated by a hyphen (-). For example: 00-10-A4-23-19-C0.

    In IEEE 802.11, where the SSID is known, the SSID must be appended to the access point MAC address and separated from the MAC address with a colon (:). For example: 00-10-A4-23-19-C0:AP1.

  • Calling-Station ID: For IEEE 802.1X authenticators, the Calling-Station ID is used to store the supplicant MAC address in upper case ASCII format, with octet values separated by a hyphen (-). For example: 00-10-A4-23-19-C0.

  • NAS-Port ID: The NAS-Port ID is used to identify the IEEE 802.1X Authenticator port which authenticates the Supplicant. The NAS-Port-Id differs from the NAS-Port in that it is a string of variable length whereas the NAS-Port is a 4 octet value.