Figure 6. EAP Over RADIUSRADIUS Attributes for 802.1X SupportDell Networking systems include the following RADIUS attributes in all 802.1X-triggered Access-Request messages:Attribute 31 Calling-station-id: relays the supplicant MAC address to the authentication server.Attribute 41 NAS-Port-Type: NAS-port physical port type. 15 indicates Ethernet.Attribute 61 NAS-Port: the physical port number by which the authenticator is connected to the supplicant.Attribute 81 Tunnel-Private-Group-ID: associate a tunneled session with a particular group of users.Configuring 802.1XConfiguring 802.1X on a port is a one-step process.For more information, refer to Enabling 802.1X.Related Configuration Tasks• Configuring Request Identity Re-Transmissions• Forcibly Authorizing or Unauthorizing a Port• Re-Authenticating a Port• Configuring Timeouts• Configuring a Guest VLAN• Configuring an Authentication-Fail VLANImportant Points to Remember• Dell Networking OS supports 802.1X with EAP-MD5, EAP-OTP, EAP-TLS, EAP-TTLS, PEAPv0, PEAPv1, and MS-CHAPv2 with PEAP.• All platforms support only RADIUS as the authentication server.• If the primary RADIUS server becomes unresponsive, the authenticator begins using a secondary RADIUS server, if configured.• 802.1X is not supported on port-channels or port-channel members.802.1X 91
