Users Guide

MAC address learning limit violation actions configuration example
OS10# configure terminal
OS10(config)#interface ethernet 1/1/1
OS10(config-if-eth1/1/1)#switchport port-security
OS10(config-if-port-sec)#no disable
OS10(config-if-port-sec)#mac-learn limit 100
OS10(config-if-port-sec)#mac-learn limit violation shutdown
Configure sticky MAC addresses
To enable sticky MAC address learning on an interface:
Enter the following command in INTERFACE PORT SECURITY mode:
sticky
NOTE: Before enabling sticky MAC address learning, ensure that you restrict the number of MAC address that an interface
can learn using the mac-learn limit command.
Sticky MAC addresses configuration example
OS10# configure terminal
OS10(config)#interface ethernet 1/1/1
OS10(config-if-eth1/1/1)#switchport port-security
OS10(config-if-port-sec)#no disable
OS10(config-if-port-sec)#mac-learn limit 100
OS10(config-if-port-sec)#sticky
Permit MAC address movement
Use the following command in INTERFACE PORT SECURITY mode:
OS10(config-if-port-sec)#mac-move allow
MAC address movement configuration example
OS10# configure terminal
OS10(config)#interface ethernet 1/1/1
OS10(config-if-eth1/1/1)#switchport port-security
OS10(config-if-port-sec)#no disable
OS10(config-if-port-sec)#mac-learn limit 100
OS10(config-if-port-sec)#mac-move allow
Configure MAC address movement violation actions
Use the following commands in INTERFACE PORT SECURITY mode:
● To display which MAC address causes a violation, use the log option. The system also drops the packet.
OS10(config-if-port-sec)#mac-move violation log
● To drop the packet when a MAC address movement violation occurs, use the drop option.
OS10(config-if-port-sec)#mac-move violation drop
● To shut down the original interface that learned the MAC address on a MAC movement violation, use the shutdown-
original option.
OS10(config-if-port-sec)#mac-move violation shutdown-original
● To shut down the interface that detected a MAC address that is already learned by another interface, use the shutdown-
offending option.
OS10(config-if-port-sec)#mac-move violation shutdown-offending
● To shut down both original and offending interfaces, use the shutdown-both option.
OS10(config-if-port-sec)#mac-move violation shutdown-both
Security
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