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Cisco Systems IntelligentGigabit Ethernet Switch Modules for the IBM BladeCenter, Software Configuration Guide
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Chapter6 Configuring IEEE 802 .1x Port-Based Authentication
Configuring IEEE 802.1x Authentication
This is the IEEE 802.1x authentication, authorizati on and accounting process:
Step1 A user connects to a port on the switch.
Step2 Authentication is performed.
Step3 VLAN assignment is enabled, as appropriate, based on the RA DIUS server configuration.
Step4 The switch sends a start message to an accounting server.
Step5 Re-authentication is performed, as necessary.
Step6 The switch sends an interim accounting update to the accounting server that is based on the result of
re-authentication.
Step7 The user disconnects from the port.
Step8 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:
Command Purpose
Step1 configure terminal Enter global configuration mode.
Step2 aaa new-model Enable AAA.
Step3 aaa authentication dot1x {default}
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.
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.
Step4 dot1x system-auth-control Enable IEEE 802.1x authentication globally on the switch.
Step5 aaa authorization network {default}
group radius
(Optional) Configure the switch for user RADIUS authorization for all
network-related service requests, such as VLAN assignment.
Note
Step6 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.
Step7 dot1x port-control auto Enable IEEE 802.1x authentication on the port.
For feature interaction information, see the “IEEE 802.1x Configuration
Guidelines” section on page6-12.
Step8 end Return to privileged EXEC mode.
Step9 show dot1x Verify your entries.
Step10 copy running-config startup-config (Optional) Save your entries in the configuration file.