Cisco 2950G 24 Software Configuration Guide - Page 422

Configuring Port Security Chapter 18 Configuring Port-Based Traffic Control Step 5 Step 6 Command switchport port-security maximum value switchport port-security violation {protect | restrict | shutdown} Step 7 switchport port-security mac-address mac-address Step 8 Step 9 switchport port-security mac-address sticky switchport port-security mac-address sticky mac-address Step 10 end Step 11 show port-security show port-security address show port-security interface interface-id Step 12 copy running-config startup-config Purpose (Optional) Set the maximum number of secure MAC addresses for the interface. The range is 1 to 132; the default is 1. (Optional) Set the violation mode, the action to be taken when a security violation is detected, as one of these: • protect-When the number of port secure MAC addresses reaches the maximum limit allowed on the port, packets with unknown source addresses are dropped until you remove a sufficient number of secure MAC addresses to drop below the maximum value. • restrict-A port security violation restricts data and causes the SecurityViolation counter to increment and sends an SNMP trap. • shutdown-The interface is error-disabled when a security violation occurs. Note When a secure port is in the error-disabled state, you can bring it out of this state by entering the errdisable recovery cause psecure-violation global configuration command, or you can manually re-enable it by entering the shutdown and no shutdown interface configuration commands. (Optional) Enter a static secure MAC address for the interface, repeating the command as many times as necessary. You can use this command to enter the maximum number of secure MAC addresses. If you configure fewer secure MAC addresses than the maximum, the remaining MAC addresses are dynamically learned. Note If you enable sticky learning after you enter this command, the secure addresses that were dynamically learned are converted to sticky secure MAC addresses and are added to the running configuration. (Optional) Enable stick learning on the interface. (Optional) Enter a sticky secure MAC address, repeating the command as many times as necessary. If you configure fewer secure MAC addresses than the maximum, the remaining MAC addresses are dynamically learned, are converted to sticky secure MAC addresses, and are added to the running configuration. Note If you do not enable sticky learning before this command is entered, an error message appears, and you cannot enter a sticky secure MAC address. Return to privileged EXEC mode. Verify your entries. (Optional) Save your entries in the configuration file. 18-8 Catalyst 2950 Desktop Switch Software Configuration Guide 78-14982-01