In computer networks, MAC address (Media Access Control Address) and IP address (Internet Protocol Address) are two important concepts used for communication between network devices. Although they are both used to identify devices, there is a clear difference in their operating principles and roles.<\/p>\n\n\n\n
<\/p>\n\n\n\n
I. MAC Address<\/strong><\/p>\n\n\n\n A MAC address is the physical address of a hardware device. Every network device (e.g., network card, router) has a MAC address. A MAC address is usually a 48-bit hexadecimal number (6 bytes) assigned to a device by the manufacturer at the time of manufacture, e.g., 00-B0-D0-64-C1-36.It is located at the data link layer (Layer 2) of the OSI model and is used to uniquely identify and locate a device in a local area network (LAN).<\/p>\n\n\n\n How MAC addresses work:<\/strong><\/p>\n\n\n\n 1.When a device communicates on a LAN, the data frame contains a source MAC address and a destination MAC address.<\/p>\n\n\n\n 2.When each device receives a data frame, it checks whether the destination MAC address matches its own MAC address, if it does, it receives the data, otherwise it discards it.<\/p>\n\n\n\n II. IP Address<\/strong><\/p>\n\n\n\n An IP address is usually a 32-bit (IPv4) or 128-bit (IPv6) number, such as 192.168.1.1. Every device on a network has a unique IP address. When you want to browse a website, your computer uses the IP address of that website to locate it.<\/p>\n\n\n\n How IP addresses work:<\/strong><\/p>\n\n\n\n 1.When a device communicates in the Internet, the packet contains a source IP address and a destination IP address.<\/p>\n\n\n\n 2. The router determines the transmission path of the packet based on the destination IP address and transmits the packet from the source address to the destination address.<\/p>\n\n\n\n III. Difference between them:<\/strong><\/p>\n\n\n\n 1. Uniqueness: a MAC address is globally unique and assigned by the device manufacturer, whereas an IP address only needs to be unique within a particular network.<\/p>\n\n\n\n 2. Location: MAC addresses are used for local network communications, while IP addresses are used for Internet communications.<\/p>\n\n\n\n 3. Hierarchy: MAC addresses are located at the data link layer, while IP addresses are located at the network layer.<\/p>\n\n\n\n 4. Dynamic: IP addresses can be dynamically assigned (DHCP), while MAC addresses are usually fixed.<\/p>\n\n\n\n But what both have in common is that they can reveal your browser’s digital fingerprint, which can allow your device to be accurately identified. If you are a multi-account operator, you must pay attention to the hiding of MAC addresses and IP addresses.<\/p>\n\n\n\n
<\/p>\n\n\n\n
<\/p>\n\n\n\n
<\/p>\n\n\n\n