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– Click Security, Port Security. Set the action to take when an invalid address is
detected on a port, mark the checkbox in the Status column to enable security for a
port, set the maximum number of MAC addresses allowed on a port, and click Apply.
Figure 6-8 Port Security
CLI – This example selects the target port, sets the port security action to send a
trap and disable the port, specifies a maximum address count, and then enables
port security for the port.
Console(config)#interface ethernet 1/5
Console(config-if)#port security action trap-and-shutdown
Console(config-if)#port security max-mac-count 20
Console(config-if)#port security
Console(config-if)#
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Configuring Port Security
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