The rapidly approaching shortage of IP addresses called the U.S. Internet Name Record urgent preparations for the speedy and successful implementation of the new IP protocol - IPv6. Now the Internet Protocol-IPv4, allows for over 4 billion IP addresses (2 ^ 32). Only 19% of IP addresses are still free. Around 2012 - 2013 year all addresses will be usedWe inevitably will switch to a new IP address system, the question is how to do it with minimal damage. IPv6 allows 16 billion-billion addresses (2 ^ 128).IP address identifies every computer’s accelerating. IP addresses are not the same