What's a nat type
In computer networking, network address translation (NAT) is the process of modifying IP address information in IP packet headers while in transit across a traffic routing device.Read more here:http://en.wikipedia.org/wiki/Network_address_translation
A NAT (network address translation) is networking concept. It is used to modify internet protocol information, used across a traffic routing device. Check out http://en.wikipedia.org/wiki/Network_address_translation for more information.