Dell PowerConnect 55xx Systems User Guide 133• RADIUS, None — Perform port authentication first by using theRADIUS server. If no response is received from RADIUS (forexample, if the server is down), then no authentication isperformed, and the session is permitted.• RADIUS — Authenticate the user on the RADIUS server. If noauthentication is performed, the session is not permitted.• None — Do not authenticate the user. Permit the session.– Guest VLAN — Enable/disable the use of a Guest VLAN forunauthorized ports. If a Guest VLAN is enabled, all unauthorizedports automatically join the VLAN selected in the Guest VLAN IDfield. If a port is later authorized, it is removed from the Guest VLAN.– VLAN List — Select the Guest VLAN from the VLAN list.– Monitoring Mode — Enable/disable logging authentication attempts.– Monitoring VLAN — Enter the ID of the VLAN to which trafficbeing monitored is routed after unsuccessful Dot1x authentication.– Accept Supplicant when Dynamic Policy/ACL Assignment Has NoResources — If no resources remain in the TCAM, the system caneither reject (disable) or allow (enable) successful authentication.Enabling Port-Based Authentication Globally Using the CLI CommandsThe following table summarizes the CLI commands for enabling the portbased authentication as displayed in the Port Based Authentication Globalpage.Table 8-12. Port-Based Authentication Global CLI CommandsCLI Command Descriptionaaa authentication dot1xdefault method1 [method2]no aaa authentication dot1xdefaultSpecifies one or more AAA methods foruse on interfaces running IEEE 802.1X.Use the no form of this command torestore the default configuration.dot1x system-auth-controlno dot1x system-auth-controlEnables 802.1x globally.Use the no form of this command torestore the default configuration.
