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Cisco ME 3400 Ethernet Access Switch Software Configuration Guide
OL-9639-06
Chapter 22 Configuring Port-Based Traffic Control
Configuring Port Security
To disable sticky learning on an interface, use the no switchport port-security mac-address sticky
interface configuration command. The interface converts the sticky secure MAC addresses to dynamic
secure addresses. However, if you have previously saved the configuration with the sticky MAC
addresses, you should save the configuration again after entering the no switchport port-security
mac-address sticky command, or the sticky addresses will be restored if the switch reboots.
Use the clear port-security {all | configured | dynamic | sticky} privileged EXEC command to delete
from the MAC address table all secure addresses or all secure addresses of a specific type (configured,
dynamic, or sticky) on the switch or on an interface.
To delete a specific secure MAC address from the address table, use the no switchport port-security
mac-address mac-address interface configuration command.
To delete all dynamic secure addresses on an interface from the address table, enter the no switchport
port-security interface configuration command followed by the switchport port-security command (to
re-enable port security on the interface). If you use the no switchport port-security mac-address sticky
interface configuration command to convert sticky secure MAC addresses to dynamic secure MAC
addresses before entering the no switchport port-security command, all secure addresses on the
interface except those that were manually configured are deleted.
You must specifically delete configured secure MAC addresses from the address table by using the no
switchport port-security mac-address mac-address interface configuration command.
This example shows how to enable port security on a port and to set the maximum number of secure
addresses to 50. The violation mode is the default, no static secure MAC addresses are configured, and
sticky learning is enabled.
Switch(config)# interface gigabitethernet0/1
Switch(config-if)# switchport mode access
Switch(config-if)# switchport port-security
Switch(config-if)# switchport port-security maximum 50
Switch(config-if)# switchport port-security mac-address sticky
This example shows how to configure a static secure MAC address on VLAN 3 on a port:
Switch(config)# interface gigabitethernet0/2
Switch(config-if)# switchport mode trunk
Switch(config-if)# switchport port-security
Switch(config-if)# switchport port-security mac-address 0000.02000.0004 vlan 3
This example shows how to enable sticky port security on a port, to manually configure MAC addresses
for data VLAN, and to set the total maximum number of secure addresses to 10.
Switch(config)# interface FastEthernet0/1
Switch(config-if)# no shutdown
Switch(config-if)# switchport access vlan 21
Switch(config-if)# switchport mode access
Switch(config-if)# switchport port-security
Switch(config-if)# switchport port-security maximum 10
Switch(config-if)# switchport port-security violation restrict
Switch(config-if)# switchport port-security mac-address sticky
Switch(config-if)# switchport port-security mac-address sticky 0000.0000.0002
Switch(config-if)# switchport port-security mac-address 0000.0000.0003
Switch(config-if)# switchport port-security maximum 10 vlan access