Correct Answer:
Explanation/Reference:
The purpose of this sim is straightforward:
Limit the maximum number of MAC addresses that are allowed to access the port to two.
Shutdown the interface when there is a violation.
Please remember that we have to access interface Fa0/12 to fulfill the requirements. Before making any configuration, we should use the show running-config to check the status of interface Fa0/12
Switch>enable
Password: cisco
Switch#show running-config
The interface Fa0/12 hasn’t been configured with anything.
Switch#configure terminal
Switch(config)#interface fa0/12
Switch(config-if)#switchport mode access
First, enable the “port security” feature on this interface:
Switch(config-if)#switchport port-security
Set the maximum number of secure MAC addresses for this interface to 2:
Switch(config-if)#switchport port-security maximum 2
Shutdown if the security is violated:
Switch(config-if)#switchport port-security violation shutdown
Switch(config-if)#no shutdown
Switch(config-if)#end
Now you should check if the configuration is correct or not by typing the command show port- security interface fa0/12
Switch#show port-security interface fa0/12
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Notice that the parameters should be like this:
+ Port Security: Enabled
+ Violation Mode: Shutdown
+ Maximum MAC Address: 2
Save the configuration
Switch#copy running-config startup-config
Just for your information, when the security is violated the port is in the error-disabled state. We can bring it out of this state by entering the “errdisable recovery cause psecure-violation” global “shutdown” and “no configuration command or we can manually re-enable it by entering the shutdown” commands in the interface configuration.
