IP addresses are the naming system of the internet—numbers that identify every device, every server, every website, and every slice of traffic moving across a network. In this episode, we break down how these addresses work, why different types exist, and how they shape everything from home Wi-Fi to global routing. We look at public vs private IPs, the difference between static and dynamic assignments, and how shared and dedicated website IPs affect hosting. We also explore IPv4, IPv6, and the core addressing models: unicast, broadcast, multicast, and anycast. By the end, the entire addressing universe fits neatly in your mental map.

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