Configuration Guide     583
Configuring Network Security 802.1X Configuration
Step 2 interface {fastEthernet 
port
 | range fastEthernet 
port-list
 | gigabitEthernet 
port
 | 
range gigabitEthernet 
port-list
}
Enter interface configuration mode.
port: 
Enter the ID of the port to be configured.
Step 3 dot1x
Enable 802.1X authentication for the port.
Step 4 dot1x port-method { mac-based | port-based }
Configure the control type for the port. By default, it is mac-based.
mac-based: All clients connected to the port need to be authenticated.
port-based: If a client connected to the port is authenticated, other clients can 
access the LAN without authentication.
Step 5 dot1x guest-vlan
(Optional) Enable guest VLAN on the port.
Note: Before enabling guest VLAN, the control type of the port should be configured 
as port-based.
Step 6 dot1x port-control { auto | authorized-force | unauthorized-force }
Configure the control mode for the port. By default, it is auto.
auto: If this option is selected, the port can access the network only when it is 
authenticated.
authorized-force: If this option is selected, the port can access the network without 
authentication.
unauthorized-force: If this option is selected, the port can never be authenticated.
Step 7 show dot1x interface [fastEthernet 
port
 |gigabitEthernet 
port
 | ten-gigabitEthernet 
port
]
(Optional) Verify the configurations of 802.1X authentication on the port.
port: 
Enter the ID of the port to be configured. If no specific port is entered, the 
switch will show configurations of all ports.
Step 8 end
Return to privileged EXEC mode.
Step 9 copy running-config startup-config
Save the settings in the configuration file.
The following example shows how to enable 802.1X authentication on port 1/0/2, configure 
the control type as port-based, and configure the control mode as auto:
Switch#configure