Network Address Translation (NAT) Traversal

NAT traversal is a method that allows devices behind a router with Network Address Translation (NAT) to communicate directly with devices outside their local network. Since NAT hides internal IP addresses, special techniques enable these devices to establish and maintain connections across the NAT barrier, facilitating seamless data exchange for applications like voice calls, video conferencing, or online gaming. Essentially, NAT traversal helps devices behind a firewall or router find and connect with others on the internet without compromising security or requiring complex reconfiguration.