Network Address Translation Technology and its Applications

Network Address Translation refers to the internal network host to access the external Internet network,with NAT-enabled devices(routers) to its IP network address translation as a legitimate public network IP address to visit outside the Net.Through the address translation can be inside and outside the Net Net separated,so that users can not know outside the network topology within the network,thereby enhancing network security.NAT implementation through multiple users simultaneously using the same legal IP to communicate with the outside Internet to effectively alleviate the public network IP address shortage problem.