What is DHCP ?

What is DHCP? | Simple Networking Explained

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Ever wondered how your device automatically gets an IP address when you connect to Wi-Fi?

That’s DHCP (Dynamic Host Configuration Protocol) in action!

🔹 Why DHCP is Important:

✅ Automatically assigns IP addresses

✅ Eliminates manual configuration

✅ Simplifies network management

✅ Prevents IP conflicts

🔄 The DORA Process (How DHCP Works):

🟢 D – Discover

🟠 O – Offer

🔵 R – Request

🔴 A – Acknowledge

Key Terms to Remember:

• Scope – Range of available IP addresses

• Lease Time – Duration a device keeps the IP

• Reservation – Assigning a specific IP to a specific MAC

Quick Facts:

• Uses UDP Ports 67 & 68

• Works across subnets using Relay Agents

Understanding DHCP is essential for every CCNA student, Network Engineer, and IT Professional.