Computer Networking Basics PART 3 DHCP
What is DHCP? Imagine joining a Wi-Fi network and instantly getting connected — no manual setup, no typing long IP addresses. That’s the magic of DHCP (Dynamic Host Configuration Protocol) . DHCP was created to make network management easier for administrators. Before DHCP, every computer (or “node”) had to be manually assigned an IP address — often typed into a configuration file or dialog box. This was time-consuming and error-prone, especially in large networks. 🖥️ How DHCP Works DHCP automates the process of assigning IP addresses to devices on a network. Here’s how it happens step by step: Device Joins the Network When a computer or phone connects to a network, it sends a request asking for an IP address. DHCP Server Responds A dedicated DHCP server manages a pool (called a scope ) of available IP addresses. It picks one and assigns it to the device. Lease Period Begins The assigned IP address is valid for a limited time — known as the lease period . After it expi...