Network Address Translation (NAT) What is Network Address Translation (NAT)? Network Address Translation (NAT) is a method used in networking to translate private IP addresses into public ones, enabling devices in a local network to access the internet. Explanation NAT helps conserve public IP addresses and adds a layer of security by masking internal network details from external entities. It is widely used in routers and firewalls. Practical Example of NAT A home router uses NAT to allow multiple devices to share a single public IP address while maintaining unique private addresses within the network.