By analyzing MAC addresses, traffic sources and destinations can be identified, aiding in locating the source of faults and resolving network issues. Additionally, MAC addresses play a crucial role in network diagnostics and troubleshooting. They can deny or allow specific devices with certain MAC addresses to access the network, enhancing network security. MAC addresses can also be employed in Access Control Lists (ACLs) to regulate network access, restricting or permitting it as necessary. It's analogous to a unique postal code for each house, ensuring the accuracy of data transmission within a local area network. Starting from the left, 0-23 bit is the code that manufacturers apply to IETF and other organizations to identify manufacturers, and bits 24 to 47 are manufacturer-assigned unique identifiers for each device. Typically, a MAC address consists of 48 bits, represented by 12 hexadecimal digits. Each network device, such as switches, routers, etc., is assigned a unique MAC address. The MAC address is used to uniquely identify the physical address of a device on the network. This article will take you through a detailed understanding of what MAC addresses and IP addresses are and analyze the distinctions between them. Although they serve as device identifiers, MAC addresses and IP addresses have some differences in their application domains and working mechanisms. MAC addresses and IP addresses are both crucial identifiers in computer networks, ensuring effective communication between devices.
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