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Catalyst 3560 Switch Software Configuration Guide
OL-8553-06
Chapter 10 Configuring IEEE 802.1x Port-Based Authentication
Configuring 802.1x Authentication
This example shows how to configure a switch as an 802.1x authenticator:
Switch# configure terminal
Switch(config)# cisp enable
Switch(config)# interface gigabitethernet2/0/1
Switch(config-if)# switchport mode access
Switch(config-if)# authentication port-control auto
Switch(config-if)# dot1x pae authenticator
Switch(config-if)# spanning-tree portfast trunk
Beginning in privileged EXEC mode, follow these steps to configure a switch as a supplicant:
Step 3
interface interface-id Specify the port to be configured, and enter interface configuration
mode.
Step 4
switchport mode access (Optional) Set the port mode to access.
Step 5
authentication port-control auto Set the port-authentication mode to auto.
Step 6
dot1x pae authenticator Configure the interface as a port access entity (PAE) authenticator.
Step 7
spanning-tree portfast Enable Port Fast on an access port connected to a single workstation or
server..
Step 8
end Return to privileged EXEC mode.
Step 9
show running-config interface
interface-id
Verify your configuration.
Step 10
copy running-config startup-config (Optional) Save your entries in the configuration file.
Command Purpose
Command Purpose
Step 1
configure terminal Enter global configuration mode.
Step 2
cisp enable Enable CISP.
Step 3
dot1x credentials profile Create 802.1x credentials profile. This must be attached to the port that
is configured as supplicant.
Step 4
username suppswitch Create a username.
Step 5
password password Create a password for the new username.
Step 6
interface interface-id Specify the port to be configured, and enter interface configuration
mode.
Step 7
switchport trunk encapsulation
dot1q
Set the port to trunk mode.
Step 8
switchport mode trunk Configure the interface as a VLAN trunk port.
Step 9
dot1x pae supplicant Configure the interface as a port access entity (PAE) supplicant.
Step 10
dot1x credentials profile-name Attach the 802.1x credentials profile to the interface.
Step 11
end Return to privileged EXEC mode.
Step 12
show running-config interface
interface-id
Verify your configuration.
Step 13
copy running-config startup-config (Optional) Save your entries in the configuration file.