2-31Cisco Catalyst Blade Switch 3130 and 3032 for Dell Command ReferenceOL-13271-03Chapter 2 Cisco Catalyst Blade Switch 3130 and 3032 for Dell Cisco IOS Commandsauthentication openauthentication openUse the authentication open interface configuration command to enable or disable open access on aport. Use the no form of this command to disable open access.authentication openno authentication openDefaults Open access is disabled.Command Modes Interface configurationCommand HistoryUsage Guidelines Open authentication must be enabled if a device requires network access before it is authenticated.A port ACL should be used to restrict host access when open authentication is enabled.Examples This example shows how to enable open access on a port:Switch(config)# authentication openThis example shows how to set the port to disable open access on a port:Switch(config)# no authentication openRelated CommandsRelease Modification12.2(50)SE This command was introduced.Command Descriptionauthenticationcontrol-directionConfigures the port mode as unidirectional or bidirectional.authentication event Sets the action for specific authentication events.authenticationfallbackConfigures a port to use web authentication as a fallback method for clientsthat do not support IEEE 802.1x authentication.authenticationhost-modeSets the authorization manager mode on a port.authentication order Sets the order of authentication methods used on a port.authenticationperiodicEnables or disables reauthentication on a port.authenticationport-controlEnables manual control of the port authorization state.authenticationpriorityAdds an authentication method to the port-priority list.