Dell S3100 Command Line Reference Guide for the Series 9.100.1 - Page 1429

Command History This guide is platform-specific. For command information about other platforms, see the relevant Dell Networking OS Command Line Reference Guide. Version 9.10(0.0) 9.8(2.0) 9.8(1.0) 9.8(0.0P5) 9.8(0.0P2) 9.7(0.0) 9.4.(0.0) Description Introduced on the S3148. Introduced on the S3100 series. Introduced on the Z9100-ON. Introduced on the S4048-ON. Introduced on the S3048-ON. Introduced on the S6000-ON. Introduced on the S-Series and Z-Series. Usage Information You can use this command to associate a group of TACACS servers with a VRF and source interface. You can configure the source interface only with the VRF attribute and source interface is optional with the VRF attributes. If VRF is not configured on the TACACS group, then the group is considered to be on the default VRF. RADIUS groups and VRFs have one-to-one mapping. If a VRF is configured with one RADIUS group, then you cannot use the same VRF with another RADIUS group. When the VRF is removed, then the corresponding RADIUS group is also removed automatically. Example Dell(conf)# tacacs-server group group1 Dell(conf-tacacs-group)# tacacs-server vrf vrf1 source-interface gigabitethernet 1/36 Dell(conf)# tacacs-server group group2 Dell(conf-tacacs-group)# tacacs-server vrf default Port Authentication (802.1X) Commands An authentication server must authenticate a client connected to an 802.1X switch port. Until the authentication, only Extensible Authentication Protocol over LAN (EAPOL) traffic is allowed through the port to which a client is connected. After authentication is successful, normal traffic passes through the port. Dell Networking OS supports RADIUS and Active Directory environments using 802.1X Port Authentication. Important Points to Remember Dell Networking OS limits network access for certain users by using VLAN assignments. 802.1X with VLAN assignment has these characteristics when configured on the switch and the RADIUS server. • 802.1X is supported on Dell Networking OS. • 802.1X is not supported on the LAG or the channel members of a LAG. • If no VLAN is supplied by the RADIUS server or if 802.1X authorization is disabled, the port is configured in its access VLAN after successful authentication. • If 802.1X authorization is enabled but the VLAN information from the RADIUS server is not valid, the port returns to the Unauthorized state and remains in the configured access VLAN. This prevents ports from appearing unexpectedly in an inappropriate VLAN due to a configuration error. Configuration errors create an entry in Syslog. • If 802.1X authorization is enabled and all information from the RADIUS server is valid, the port is placed in the specified VLAN after authentication. Security 1429