![]() ![]() However, a connection also exists with Layer 1 (Link Layer) through the MAC address, which is why ARP is sometimes said to operate between Layers 1 and 2. The hardware address is also known as the Ethernet address or the Media Access Control (MAC) address.ĪRP operates within Layer 2 (Internet Layer) of the TCP/IP model, where the IP address exists. ![]() This is commonly known as IP mapping and it enables IP packets to be sent to the correct destination. When a device wants to communicate with another device across a local area or remote network, ARP uses the IP address of the receiving device to discover its hardware address. This article focuses on the Address Resolution Protocol (ARP), by analysing its normal behaviours and highlighting its vulnerabilities. ![]() Network protocols are rules and standards that define how two or more devices communicate over a network. ![]()
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