MAC address cloning, also known as MAC spoofing, is the practice of changing the MAC address of a device to match the MAC address of another device. This allows the device with the spoofed MAC address to connect to a network and gain access to network resources that are restricted to the device with the original MAC address.
A router can protect against MAC address cloning by using MAC filtering. MAC filtering is a feature that allows the router to only allow devices with specific MAC addresses to connect to the network. The router administrator can configure the router to only allow devices with known and authorized MAC addresses to connect to the network.
Additionally, Some routers also come with built-in security features such as Intrusion Detection and Prevention (IDP) which can detect and prevent unauthorized access attempts, including MAC address spoofing. These features are able to detect and block malicious network traffic, including traffic from devices with spoofed MAC addresses.
It's worth noting that, while MAC filtering and IDP can help protect against MAC address spoofing, they are not foolproof and can be bypassed by a determined attacker with enough knowledge and resources. Therefore, it's recommended to use them in conjunction with other security measures such as strong passwords, encryption, and regular software updates to ensure the best protection for your network.
