What function does NAT perform in a wireless router?

Network Address Translation (NAT) in a wireless router serves to map private IP addresses within a local network to a single public IP address for internet access. This allows multiple devices on the same network to share a single public IP, enhancing security by hiding internal IP addresses from external networks. NAT also helps manage the flow of data packets between the internal network and the internet, ensuring that responses from the internet are routed back to the correct device.