17 802.1X CONFIGURATION GUIDE
nThe following configurations involve most AAA/RADIUS configuration commands.
Refer to “AAA Configuration” in the Configuration Guide for your product for
information about the commands. Configurations on the user host and the
RADIUS servers are omitted.
Configuring 802.1x
Access Control
As a port-based access control protocol, 802.1x authenticates and controls access
of users at the port level. A user host connected to an 802.1x-enabled port of an
access control device can access the resources on the LAN only after passing
authentication.
Network Diagram Figure42 Network diagram for configuring 802.1x access control
Networking and
Configuration
Requirements
■The switch authenticate supplicants on the port Ethernet 1/0/1 to control their
access to the Internet by using the MAC-based access control method.
■All supplicants belong to the default domain named aabbcc.net, which can
accommodate up to 30 users. When authenticating a supplicant, the switch
tries the RADIUS scheme first and then the local scheme if the RADIUS server is
not available. A supplicant is disconnected by force if accounting fails. In
addition, the username of a supplicant is not suffixed with the domain name. A
connection is terminated if the total size of the data passes through it during a
period of 20 minutes is less than 2000 bytes.
■The switch is connected to a server group comprising of two RADIUS servers
whose IP addresses are 10.11.1.1 and 10.11.1.2 respectively. The former
operates as the primary authentication server and the secondary accounting
server, while the latter operates as the secondary authentication server and the
primary accounting server. The shared key for authentication message
exchange is name, and that for accounting message exchange is money. If the
switch sends a packet to the RADIUS server but receives no response in 5
IP networ k
Supplicant Authenticator
Eth1/0/1
Authentication servers
(IP address:
10.11.1.1
10.11.1.2)
Switch