COMPUTER NETWORKING

Detailed explanation-1: -ARP broadcasts a request packet to all the machines on the LAN and asks if any of the machines are using that particular IP address. When a machine recognizes the IP address as its own, it sends a reply so ARP can update the cache for future reference and proceed with the communication.

Detailed explanation-2: -ARP includes a protocol called ARP request, simply broadcast a message as follows: (if this is your IP address, please reply with your MAC address). ARP also includes a ARP Reply message, which include both the original IP address and the matching MAC address of the network device in question.

Detailed explanation-3: -No. Both the ARP request and ARP reply packets use the same format. Which MAC address is an ARP request directed to? All ARP request packets are transmitted with the Ethernet broadcast address, so that all hosts in the network will receive the request.