Introduction - If you have any usage issues, please Google them yourself
The rapid development of Internet and restrictions on the number of IPv4 addresses makes network address translation (NAT, Network Address Trans2lation) devices are widely used. NAT device to allow multiple hosts behind the same NAT to share a public network (the network at the same NAT as private, in front of the NAT network known as the public network) IP address. A private IP address through NAT devices and public network communicate with other hosts.