ARP Explained: How Your Computer Finds Devices on a Network

ARP Explained: How Your Computer Finds Devices on a Network 🌐 How does your computer send data on a network? You might think IP addresses are enough, but there’s one crucial step missing—your device also needs to know the MAC address of the destination! 📡 Enter ARP (Address Resolution Protocol). ARP helps your computer discover the MAC address linked to an IP address, making communication possible across the network. 🔍 In this video, you’ll learn: ✅ What ARP is and why it’s crucial for network communication ✅ How ARP Requests and ARP Replies work ✅ Why your computer needs a MAC address to send data ✅ How the ARP table stores learned addresses ✅ The difference between broadcast and unicast ARP messages 🛠 Practical Examples: ✔️ Running the "arp -a" command to check ARP tables ✔️ Understanding how a simple ping triggers an ARP request ✔️ How devices learn MAC addresses and store them for future use 🚀 Why does ARP matter? If you’re learning networking, studying for a CCNA, or just curious about how data moves through the internet, understanding ARP is fundamental. Every device on a network uses ARP—even your phone, laptop, and router! 🔔 Don’t forget to LIKE, COMMENT, and SUBSCRIBE for more networking insights!