![]() ![]() Switch(config-if)# switchport port-security mac-address sticky Switch(config-if)# switchport port-security maximum 1 Switch(config-if)# switchport port-security ![]() ![]() Switch(config)# interface FastEthernet 0/1 After using this command, you must also set the action on the port in case of violation. You can use the switchport port-security command to enable Port Security on the Switch. An unauthorized user who is physically trying to access from the outside must not be able to connect his or her computer to a Switch on the network. You should evaluate each step and take steps accordingly. The main roles of preventing unauthorized access to a network environment are to close the idle ports on the Switch and enable the Port Security feature on the active ports.įor example, it is difficult to maintain security at a high level on a large network. Because the OSI model controls traffic flow in layer 2, you can make MAC address-based restrictions.īy restricting each port on the Cisco Switch and activating it for only one computer, we can disable the port when another computer is connected to that port, thus ensuring that the network environment remains secure. ![]()
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