A MAC (Media Access Control) address is 48 bits long and is divided into two main parts. The first24 bitsrepresent theOrganizationally Unique Identifier (OUI), which is assigned by IEEE to hardware manufacturers.
The remaining 24 bits are assigned by the manufacturer to uniquely identify individual network interfaces.
The OUI allows network administrators and tools to identify the vendor of a network device.
Understanding MAC addressing is important for network security, device identification, and troubleshooting.
MAC addresses are commonly used in access control mechanisms such as MAC filtering, although they should not be relied upon as a strong security control due to spoofing risks.