Answer:
Trusted Media Access Control (MAC) addresses are one method of network security that can be used to control access to a network by only allowing devices with known MAC addresses to connect. The MAC address is a unique identifier assigned to each network interface controller (NIC) on a device, which means that by only allowing known MAC addresses to connect, unauthorized devices are prevented from accessing the network.
While this method of network security can be effective, it does have some limitations. First, MAC addresses can be spoofed, which means that a device can be configured to present a different MAC address than its actual one. This makes it possible for an unauthorized device to bypass security measures and gain access to the network. Additionally, MAC addresses are only relevant within a single local network, which means that they do not provide security when devices are accessing the network remotely or over the internet.
Another limitation of using MAC addresses for network security is that managing the list of allowed MAC addresses can be time-consuming and complex, especially for larger networks with a high number of devices. It may also be challenging to ensure that the list of allowed MAC addresses is kept up-to-date, as devices may be added or removed from the network frequently.
In summary, while Trusted MAC addresses can be a useful method of network security, it should not be the sole method used, as it has some significant limitations. It is best used as part of a multi-layered approach to network security that includes other methods such as firewalls, intrusion detection and prevention systems, and authentication protocols.