What is the purpose of ARP (Address Resolution Protocol) in computer networks?
Hey Helen
ARP, which stands for Address Resolution Protocol, acts like a translator within a local network, helping devices to understand each other’s addresses. When a device wants to communicate with another on the same local network, it needs to know the recipient’s unique physical address, known as a MAC address. However, usually, the device only knows the recipient’s IP address, which is like a phone number. Here, ARP steps in to find out the MAC address that matches the known IP address, making it possible for the devices to connect and interact. This process is crucial because, in a local network, devices use MAC addresses to ensure that the data reaches the right destination.
By maintaining a table that lists IP addresses with their corresponding MAC addresses, ARP keeps the communication between devices on the local network smooth and precise.