How To Configure Port Security On Cisco Switch?
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Step 1: Navigate to the interface configuration mode for the interface you want to configure for port security.
Step 2: Enable port security by entering the command “switchport port-security”.
Step 3: Set the maximum number of MAC addresses allowed on the port using the command “switchport port-security maximum <number>”.
Step 4: Configure the port to shutdown when the maximum number of MAC addresses is exceeded by entering the command “switchport port-security violation shutdown”.
Step 5: Configure the port to restrict the type of MAC addresses allowed on the port by entering the command “switchport port-security mac-address <type>”.
Step 6: Configure the port to restrict the number of secure MAC addresses added to the port by entering the command “switchport port-security maximum <number>”.
Step 7: Save the configuration by entering the command “write memory”.