ARP Protocol Explained (How IP Finds MAC Address – CCNA Day 10)
Introduction
In networking, devices communicate using both:
IP Address (Logical)
MAC Address (Physical)
But how does a device find the MAC address of another device using its IP?
👉 This is done using Address Resolution Protocol (ARP).
In this guide, you will learn:
What is ARP
How ARP works
ARP request & reply
ARP table
Real-life examples
What is ARP?
ARP (Address Resolution Protocol) is used to find MAC address from IP address.
👉 It connects Layer 3 (IP) with Layer 2 (MAC).
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