Chapter 2
Catalyst 3750-X and 3560-X Switch Cisco IOS Commands
Examples
Related Commands
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EtherChannel port—Do not configure a port that is an active or a not-yet-active member of an
EtherChannel as an port. If you try to enable authentication on an EtherChannel port, an error
message appears, and authentication is not enabled.
Switched Port Analyzer (SPAN) and Remote SPAN (RSPAN) destination ports—You can enable
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authentication on a port that is a SPAN or RSPAN destination port. However, authentication is
disabled until the port is removed as a SPAN or RSPAN destination. You can enable authentication
on a SPAN or RSPAN source port.
To globally disable authentication on the switch, use the no dot1x system-auth-control global
configuration command. To disable authentication on a specific port or to return to the default setting,
use the no authentication port-control interface configuration command.
This example shows how to set the port state to automatic:
Switch(config-if)# authentication port-control auto
This example shows how to set the port state to the force- authorized state:
Switch(config-if)# authentication port-control force-authorized
This example shows how to set the port state to the force-unauthorized state:
Switch(config-if)# authentication port-control force-unauthorized
You can verify your settings by entering the show authentication privileged EXEC command.
Command
authentication
control-direction
authentication event
authentication
fallback
authentication
host-mode
authentication open
authentication order
authentication
periodic
authentication
priority
authentication timer
authentication
violation
show authentication
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Description
Configures the port mode as unidirectional or bidirectional.
Sets the action for specific authentication events.
Configures a port to use web authentication as a fallback method for clients
that do not support IEEE 802.1x authentication.
Sets the authorization manager mode on a port.
Enables or disables open access on a port.
Sets the order of the authentication methods used on a port.
Enables or disable reauthentication on a port.
Adds an authentication method to the port-priority list.
Configures the timeout and reauthentication parameters for an
802.1x-enabled port.
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.
Displays information about authentication manager events on the switch.
Catalyst 3750-X and 3560-X Switch Command Reference
authentication port-control
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