Sticky MAC

Which of the following security mechanisms dynamically assigns a Layer 2 address and restricts traffic only to that Layer 2 address?

A.

Sticky MAC

B.

802.1x

C.

ACL

D.

NAC.

A.

The correct answer is A. Sticky MAC.

Sticky MAC is a security mechanism used in network switches that dynamically assigns a Layer 2 address (MAC address) to a device and restricts traffic only to that MAC address. Sticky MAC is also known as MAC address lock-down.

When a device is connected to a port on a switch, the switch learns the MAC address of the device and associates it with the port. With Sticky MAC, the switch can be configured to remember the MAC address and restrict traffic only to that MAC address, thereby preventing unauthorized access to the network.

For example, if an attacker tries to connect a device to the network using a different MAC address, the switch will not allow the traffic to pass through the port, as it is not associated with the allowed MAC address.

Sticky MAC is a simple and effective security mechanism that is commonly used in small to medium-sized networks. It is not as robust as more advanced security mechanisms like 802.1x and NAC, but it provides a good level of security for many network environments.

To summarize, Sticky MAC is a Layer 2 security mechanism that dynamically assigns a MAC address to a device and restricts traffic only to that MAC address. It is a simple and effective way to prevent unauthorized access to the network.