Disadvantages of MAC
- Due to the reason that the first three bytes (OUI) for a MAC address reserved for the manufacturer, therefore it is limited for having only be 2^24 unique addresses per OUI by the same manufacturer.
- We can say spoofing is easy for MAC address filtering. One can act in disguise and just listen to and from permitted MAC addresses because of the broadcast nature of ethernet.
- In most cases an intruder can obtain access to the network by constantly changing his MAC Address to a one that is permitted.
MAC Full Form
MAC stands for Media Access Control.
MAC address is defined as the identification number for the hardware. In general, the network interface cards (NIC) of each computer such as Wi-Fi Card, Bluetooth or Ethernet Card has unchangeable MAC address embedded by the vendor at the time of manufacturing. Dell, Nortel, Belkin, and Cisco are some of the well known NIC manufacturers. One can change the given default address of the device by replacing the NIC cards.
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