Please support my channel by becoming a member. Your support is much appreciated. https://www.patreon.com/sunnyclassroom In this video, I will talk about how classic private TCP/IP network was set up for the first two decades of the Internet. Why it did not work? What is network address translation, or NAT? Why do we need it? For most parts, I will talk about four different types of NAT: Static NAT, Dynamic NAT, PAT, and Port Forwarding. I will discuss each in detail. Playlist link: IPv4 Basics: https://www.youtube.com/watch?v=vcArZIAmnYQ This is my education channel. My topics cover networking, security, programming, data structure, algorithm, programming and other computer-related materials. Please subscribe my channel. Please leave comments or questions. Many thanks, Sunny Classroom