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Catalyst 3750 Switch Command Reference
OL-8552-07
Chapter 2 Catalyst 3750 Switch Cisco IOS Commands
authentication event
• You cannot configure an internal VLANs for Layer 3 ports as a restricted VLAN. You cannot specify
the same VLAN as a restricted VLAN and as a voice VLAN.
Enable re-authentication with restricted VLANs. If re-authentication is disabled, the ports in the
restricted VLANs do not receive re-authentication requests if it is disabled.
To start the re-authentication process, the restricted VLAN must receive a link-down event or an
Extensible Authentication Protocol (EAP) logoff event from the port. If a host is connected through
a hub:
–
The port might not receive a link-down event when the host is disconnected.
–
The port might not detect new hosts until the next re-authentication attempt occurs.
When you reconfigure a restricted VLAN as a different type of VLAN, ports in the restricted VLAN
are also moved and stay in their currently authorized state.
Examples This example shows how to configure the authentication event fail command:
Switch(config)# authentication event fail action authorize vlan 20
This example shows how to configure a no-response action:
Switch(config)# authentication event no-response action authorize vlan 10
This example shows how to configure a server-response action:
Switch(config)# authentication event server alive action reinitialize
You can verify your settings by entering the show authentication privileged EXEC command.
Related Commands Command Description
authentication
control-direction
Configures the port mode as unidirectional or bidirectional.
authentication
fallback
Configures a port to use web authentication as a fallback method for clients
that do not support IEEE 802.1x authentication
authentication
host-mode
Sets the authorization manager mode on a port.
authentication open Enables or disable open access on a port.
authentication order Sets the order of authentication methods used on a port.
authentication
periodic
Enables or disables reauthentication on a port
authentication
port-control
Enables manual control of the port authorization state.
authentication
priority
Adds an authentication method to the port-priority list.
authentication timer Configures the timeout and reauthentication parameters for an
802.1x-enabled port.
authentication
violation
Configures the violation modes that occur when a new device connects to a
port or when a new device connects to a port after the maximum number of
devices are connected to that port.
show authentication Displays information about authentication manager events on the switch.
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