Router NAT (Network Address Translation) is a networking technique that allows multiple devices on a private network to share a single public IP address. It works by translating the private IP addresses of devices on the network to a single public IP address when they access the internet. This allows devices on the private network to communicate with devices on the internet while hiding their private IP addresses, providing a level of security and privacy.
Router NAT is an essential tool for home and business networks because it allows multiple devices to share a single internet connection. It also helps to protect devices on the network from security threats by hiding their private IP addresses. Additionally, Router NAT can help to improve network performance by reducing the number of packets that need to be routed across the network.