![]() ![]() Then once it receives the MAC address, the communication can now take place between the two. Then the computer that has the matching IP address will then respond and tell computer A its MAC address. If the list is empty, computer A will send out a broadcast message out on the network asking every device, which computer has the specific IP address, and will ask for their MAC address. So to find the MAC address, computer A will first look at its internal list, called an ARP cache, to see if computer B's IP address already has a matching MAC address. An IP address is used to locate a device on a network but the MAC address is what identifies the actual device. ![]() But to communicate with computer B, it still needs its MAC address. Now computer A already knows the IP address for computer B. So as an example let's say that computer A wants to communicate with computer B. ![]() The ARP protocol is used to acquire the MAC address for that device. Whenever a device needs to communicate with another device on a local area network, it needs the MAC address for that device.It's a globally unique number that is assigned to every network interface card. The MAC address is a physical address of a device.This is a protocol that is used to resolve IP addresses to MAC (Media Access Control) addresses.ARP stands for address resolution protocol. ![]() ALSO READ: How to configure VLAN with bond using kickstart in Linux (CentOS/RHEL 7) ![]()
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