NAT Explained | How Multiple Devices Share One Public IP

Network Address Translation (NAT) is a method used to remap one IP address space into another. In a typical home or office network, NAT allows multiple devices (laptops, phones, consoles) with "private" IP addresses to share a single "public" IP address provided by an ISP. Why NAT Exists The main reason for NAT is IPv4 address exhaustion . There are only about 4 billion IPv4 addresses. Without…