A lire sur: http://www.infoworld.com/slideshow/51016/why-the-internet-needs-ipv6-195160?source=IFWNLE__2012-06-08
Explosive growth of Internet users, devices, apps creates demand for more IP addresses
By Carolyn Duffy Marsan, Network World, June 9, 2012
Why do we need IPv6?In a word: Growth. The number of Internet-connected users, devices and applications are growing at such a rapid clip that the pool of available addresses for the original version of the Internet Protocol, known as IPv4, is being rapidly depleted. IPv4 uses 32-bit addresses and can support 4.3 billion devices connected directly to the Internet. The replacement protocol, called IPv6, uses 128-bit addresses and provides such a vast number of addresses that it can only be expressed mathematically: 3.4 x 10 to the 38th power. A few skeptics question the need for IPv6. But most Internet policymakers and network technology experts assert that the shift to IPv6 is inevitable, and the time to move is now.