port security

This command information was updated for 10.0.20a
Port security can be configured on a single interface or multiple interfaces.
Syntax
port security { age[ decimal | global-mac ] } { autosave} { maximumvalue } { secure-mac-addressipaddress} { violation[ protect| restrict| shutdown] }
no port security { age[ decimal | global-mac ] } { autosave} { maximumvalue } { secure-mac-addressipaddress} { violation[ protect| restrict| shutdown] }
Modes

Global configuration mode

Usage Guidelines
Examples

The following example shows how to enter port security on a simple interface. 

device# configure terminal 
device (config)# interface ethernet 1/1/24
device (config-if-e2500-1/1/24)# port-security age global-mac maximum 5 secure-mac-address 1111.2222.3333 101 autosave 17 violation protect

The following example shows how to enter port security on multiple interfaces. 

device# configure terminal 
device (config)# interface ethernet 1/1/1 ethernet 1/1/10
device(config-mif-1/1/1-1/1/10)#port-security age global-mac secure-mac-address 1.2.3 1 autosave 17

Release version Command history
10.0.20a This command was modified to include additional security options.
Parent topic: Commands O, P, Q, R, and Sa through Sh