Which type of device filtering can be enabled on some wireless access points or wireless routers?

Device filtering on wireless access points or wireless routers often involves using the MAC address as the primary identifier for devices on a network. The MAC address is a hardware address that uniquely identifies each device on a local network. By setting up MAC address filtering, network administrators can control which devices are allowed to connect to the wireless network by creating a list of allowed or denied MAC addresses.

This method of filtering enhances security by ensuring that only specific devices can access the network, helping to protect against unauthorized access. While other filtering types, such as filtering by IP address, might have some relevance in certain contexts (like within a connected network), they are not typically implemented directly on wireless access points for initial connection control. Instead, MAC address filtering is a more common practice in wireless security management.