IBM 12.1(22)EA6 User Manual
6-23
Cisco Systems Intelligent Gigabit Ethernet Switch Modules for the IBM BladeCenter, Software Configuration Guide
24R9746
Chapter 6 Configuring IEEE 802.1x Port-Based Authentication
Configuring IEEE 802.1x Authentication
This is the IEEE 802.1x authentication, authorization and accounting process:
Step 1
A user connects to a port on the switch.
Step 2
Authentication is performed.
Step 3
VLAN assignment is enabled, as appropriate, based on the RADIUS server configuration.
Step 4
The switch sends a start message to an accounting server.
Step 5
Re-authentication is performed, as necessary.
Step 6
The switch sends an interim accounting update to the accounting server that is based on the result of
re-authentication.
re-authentication.
Step 7
The user disconnects from the port.
Step 8
The switch sends a stop message to the accounting server.
Beginning in privileged EXEC mode, follow these steps to configure IEEE 802.1x port-based
authentication:
authentication:
Command
Purpose
Step 1
configure terminal
Enter global configuration mode.
Step 2
aaa new-model
Enable AAA.
Step 3
aaa authentication dot1x {default}
method1 [method2...]
method1 [method2...]
Create an IEEE 802.1x authentication method list.
To create a default list that is used when a named list is not specified in
the authentication command, use the default keyword followed by the
methods that are to be used in default situations. The default method list
is automatically applied to all ports.
the authentication command, use the default keyword followed by the
methods that are to be used in default situations. The default method list
is automatically applied to all ports.
Enter at least one of these keywords:
•
group radius—Use the list of all RADIUS servers for authentication.
•
none—Use no authentication. The client is automatically
authenticated by the switch without using the information supplied by
the client.
authenticated by the switch without using the information supplied by
the client.
Step 4
dot1x system-auth-control
Enable IEEE 802.1x authentication globally on the switch.
Step 5
aaa authorization network {default}
group radius
group radius
(Optional) Configure the switch for user RADIUS authorization for all
network-related service requests, such as VLAN assignment.
network-related service requests, such as VLAN assignment.
Note
Step 6
interface interface-id
Specify the port connected to the client that is to be enabled for IEEE
802.1x authentication, and enter interface configuration mode.
802.1x authentication, and enter interface configuration mode.
Step 7
dot1x port-control auto
Enable IEEE 802.1x authentication on the port.
For feature interaction information, see the
Step 8
end
Return to privileged EXEC mode.
Step 9
show dot1x
Verify your entries.
Step 10
copy running-config startup-config
(Optional) Save your entries in the configuration file.