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802.1X CONFIGURATION GUIDE

n

The 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

As a port-based access control protocol, 802.1x authenticates and controls access

Access Control

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

Figure 42 Network diagram for configuring 802.1x access control

Networking and

Configuration

Requirements

Authentication servers

(IP address:

10.11.1.1

10.11.1.2)

 

Eth1/0/1

Switch

IP network

Supplicant

Authenticator

 

 

 

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

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3Com 5500G, 4210, 4200G manual 802.1X Configuration Guide, Access Control