3com 4210 PWR 9-Port 3CR17341-91-ME User Manual

Before enabling port security, you need to disable 802.1x and MAC authentication 
globally.

c 

■

802.1x (disabled), port access control method (macbased), and port access 
control mode (auto)

■

MAC authentication (disabled)

In addition, you cannot perform the above-mentioned configurations manually 
because these configurations change with the port security mode automatically.

n 

■

For details about 802.1x configuration, refer to “802.1x Configuration” on 
page 211 and “System-Guard Configuration” on page 235.

■

For details about MAC Authentication configuration, refer to “MAC 
Authentication Configuration” on page 269.

Port security allows more than one user to be authenticated on a port. The 
number of authenticated users allowed, however, cannot exceed the configured 
upper limit.

By setting the maximum number of MAC addresses allowed on a port, you can

■

Control the maximum number of users who are allowed to access the network 
through the port

■

Control the number of Security MAC addresses that can be added with port 
security

This configuration is different from that of the maximum number of MAC 
addresses that can be leaned by a port in MAC address management.

Optional

Table 78   Port security configuration tasks

Table 79   Enable port security

Enter system view 

system-view 

- 

Enable port security 

port-security enable 

Required

Disabled by default

Table 80   Set the maximum number of MAC addresses allowed on a port

Enter system view 

system-view 

- 

Enter Ethernet port view 

interface interface-type 
interface-number 

-