IPv4 is the fourth version of the Internet Protocol (IP), it is the core of the Internet, which sets the rules for the operation of computer networks on the basis of the exchange of packages. This protocol is responsible for establishing a connection between network nodes (computers, servers, mobile devices, etc.) based on IP addresses.
Learn more about NFWare the high-performance vCGNAT. Request the datasheet via this page: http://nfware.ru/virtual-cgnat