Port Security

Fig 1: Port Security

How to Enable the Port Security on Cisco Switch?

Networkeducative-Switch# configure terminal

Networkeducative-Switch(config)# interface fastethernet 0/1

Networkeducative-Switch(config-if)# switchport port-security

Networkeducative-Switch(config-if)# switchport port-security violation shutdown

Networkeducative-Switch(config-if)# switchport port-security mac-address sticky

Networkeducative-Switch(config-if)# switchport port-security maximum 2

Networkeducative-Switch(config-if)# spanning-tree portfast

Networkeducative-Switch(config-if)# exit

How to remove port security?

Networkeducative-Switch# configure terminal

Networkeducative-Switch(config)# interface fastethernet 0/1

Networkeducative-Switch(config-if)# no switchport port-security

Networkeducative-Switch(config-if)# no switchport port-security maximum

Networkeducative-Switch(config-if)# no switchport port-security mac-address sticky

Networkeducative-Switch(config-if)# exit