NFWare Virtual Carrier Grade NAT (vCGNAT) allows to solve the problem of IP addresses shortage. vCGNAT allows communications operators to extend the period of use of limited IPv4 addressing space through changing private IP addresses to public IP addresses from a certain pool. The solution is fully virtual and operates on hypervisor. vCGNAT provides access to such services as Internet access, IPTV and internet telephony.