« (IDG) -- Bank panics. Blackouts. Food riots. Doomsayers haven't had so much fun since, well, since Y1K. So what will they do when Y2K has come and gone? Most likely they'll set their sights on technology's next day of judgment: the Great IP Crunch of 2010.

How could such a thing happen? Before you accuse the Internet's creators of shortsightedness, recall that the Arpanet (the predecessor of the Internet) was designed simply to help researchers at U.S. universities share precious computing resources, not to provide every PC, cell phone and toaster oven on the planet with its own node. How were Vint Cerf, Jon Postel and Danny Cohen supposed to know that the system they sketched out on a piece of cardboard would one day be carrying everything from international currency transactions to Marilyn Manson videos? It's a testament to their genius that the Internet Protocol they designed 20 years ago still holds up under the billions of bits sent today.

But there's only so much the Internet can take. Experts say that by 2010 the current Internet Protocol, IPv4, will reach the end of its tether. »


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Mark Frauenfelder, The great IP crunch of 2010, 21 septembre 1999

Mise à jour (23 juin 2010)

The supply of large, unallocated IPv4 address blocks is dwindling quickly with the exhaustion date projected for late 2011. The so-called IPv4 run-out problem will impact the greater Internet community, especially those network operators who depend on IP addressing to provision and support customers. IPv6 with its almost infinite address space is the consensus long-term solution. However its deployment across the Internet will take time (years are likely) and network operators must address the IPv4 run-out problem now. Indeed the challenges to network operators are twofold: address IPv4 run-out and enable IPv6 transition.

Chris Metz, Cisco Systems, IPv6 Transition, tutorial describing a suite of current and evolving architectures, protocols and solutions based on dual-stack, tunneling and translation methods that enable IPv4 and IPv6 to coexist, 23 juin 2010.