Cisco Systems 2960 Benutzerhandbuch
10-44
Catalyst 2960 and 2960-S Switch Software Configuration Guide
OL-8603-09
Chapter 10 Configuring IEEE 802.1x Port-Based Authentication
Configuring 802.1x Authentication
Configuring 802.1x Authentication
To configure 802.1x port-based authentication, you must enable authentication, authorization, and
accounting (AAA) and specify the authentication method list. A method list describes the sequence and
authentication method to be queried to authenticate a user.
accounting (AAA) and specify the authentication method list. A method list describes the sequence and
authentication method to be queried to authenticate a user.
To allow VLAN assignment, you must enable AAA authorization to configure the switch for all
network-related service requests.
network-related service requests.
This is the 802.1x AAA 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 802.1x port-based 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
method1
Create an 802.1x authentication method list.
To create a default list to use when a named list is not specified in the
authentication command, use the default keyword followed by the
method to use in default situations. The default method list is
automatically applied to all ports.
authentication command, use the default keyword followed by the
method to use in default situations. The default method list is
automatically applied to all ports.
For method1, enter the group radius keywords to use the list of all
RADIUS servers for authentication.
RADIUS servers for authentication.
Note
Though other keywords are visible in the command-line help
string, only the group radius keywords are supported.
string, only the group radius keywords are supported.
Step 4
dot1x system-auth-control
Enable 802.1x authentication globally on the switch.
Step 5
aaa authorization network {default}
group radius
group radius
(Optional) Configure the switch to use user-RADIUS authorization for all
network-related service requests, such as VLAN assignment.
network-related service requests, such as VLAN assignment.
Step 6
radius-server host ip-address
(Optional) Specify the IP address of the RADIUS server.
Step 7
radius-server key string
(Optional) Specify the authentication and encryption key used between
the switch and the RADIUS daemon running on the RADIUS server.
the switch and the RADIUS daemon running on the RADIUS server.
Step 8
interface interface-id
Specify the port connected to the client to enable for 802.1x
authentication, and enter interface configuration mode.
authentication, and enter interface configuration mode.