ARP protocol is used by a device to ensure that an APIPA address is not already in use on the network.
A local-area network's Address Resolution Protocol (ARP) links a media access control (MAC) address, commonly known as a fixed physical machine address, to an ever-changing Internet Protocol (IP) address (LAN).
One of the most significant protocols of the network layer in the OSI model is the Address Resolution Protocol (ARP), which assists in determining the MAC (Media Access Control) address of the system given the IP address of the system. The primary function of the ARP is to convert the 32-bit IP address (for IPv4) to the 48-bit address, i.e., the MAC address.
Protocol for Address Resolution (ARP) A layer 2 protocol called the Address Resolution Protocol is used to translate MAC addresses into IP addresses.
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