Configuring 802.1X Network Access Control
This example configures a single
RADIUS (Remote Authentication Dial In User Service)
server used for
authentication and accounting at 10.10.10.10. The shared secret is configured to be secret. The switch is
configured to require that the 802.1X access method is through a RADIUS server. IEEE 802.1X port-
based access control is enabled for the system, and interface 1/0/1 is configured to be in force-
authorized mode because this is where the RADIUS server and protected network resources are
located.
Figure 8: Switch with 802.1x Network Access Control
If a user, or supplicant, attempts to communicate via the switch on any interface except interface 1/0/1,
the system challenges the supplicant for login credentials. The system encrypts the provided
information and transmits it to the RADIUS server. If the RADIUS server grants access, the system sets
the 802.1X port state of the interface to authorized, and the supplicant is able to access network
resources.
Using the CLI to configure 802.1X Port-Based Access Control
1 Configure the
authentication server IP address.
(Extreme 220) (Config)#radius server host auth 10.10.10.10
2 Configure the RADIUS authentication server secret key.
(Extreme 220) (Config)#radius server key auth 10.10.10.10
You are prompted, and then re-prompted, to enter the secret key.
3 Configure the RADIUS accounting server IP address.
(Extreme 220) (Config)#radius server host acct 10.10.10.10
4 Configure the RADIUS accounting server secret key.
(Extreme 220) (Config)#radius server key acct 10.10.10.10
You are prompted, and then re-prompted, to enter the secret key.
5 Enable RADIUS accounting mode.
(Extreme 220) (Config)#radius accounting mode
6 Set IEEE 802.1X to use RADIUS as the AAA method.
(Extreme 220) (Config)#aaa authentication dot1x default radius
7 Enable 802.1X authentication on the switch.
(Extreme 220) (Config)#dot1x system-auth-control
8 Set the 802.1X mode for port 1/0/1 to Force Authorized.
(Extreme 220) (Config)#interface 1/0/1
(Extreme 220) (Interface 1/0/1)#dot1x port-control force-authorized
(Extreme 220) (Interface 1/0/1)#exit
Configuration Examples
ExtremeSwitching 200 Series: Administration Guide
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