![]() ![]() To understand how does ARP work, let's take a scenario: The IP Addresses in IPv4 are 32-bits, while the MAC addresses are 48-bits. The primary purpose of the Address Resolution Protocol can be defined as to convert 32-bit addresses to 48-bit addresses and vice versa. It is a communication protocol used to find the MAC-Addresses of the devices with the help of an IP Address. What is ARP?Īs discussed earlier, the full form of ARP is Address Resolution Protocol. Now how they identify the MAC-Addresses of clients and how the communication is done, let's see that. In Local Area Networks, the communication is possible because of MAC Addresses, as these layer-2 switches can identify only the MAC Address. Now in the case of LANs, the devices are connected with a centralized network device known as a Switch, and the Switch is a device that doesn't understand IP Addresses as it's a layer-2 device of OSI, which works on frames. Have you ever wondered that IP Address is somewhat which works on routers but in today's production networks, we have a network device (Switch) that connects all the multiple end devices to make the communication. ![]() ![]() We all know that an IP address helps to make the communication from source to destination. Have you ever imagined how the information or data is being shared over the internet?Īny information exchanged from one source to destination with the help of IP, travels over the internet. ARP stands for Address Resolution Protocol but do you also wonder, what is ARP and how does ARP work? In this blog, we will be discussing these topics in detail.
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