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The Machine Stops: IPV6 and the Growth of the Internet

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Regardless of what operating system you use it takes place against the explosion of internet use and a stand-alone computer is an endangered species. A PC and other electronic devices unconnected to the internet will be as rare as a Linux virus in the wild. That interconnectedness is a boon to open source/free software developers but as more and more users go online it causes a headache for those whose job it is to provide and dish out IP addresses.

The currently most widely used network layer IP standard for data exchange between electronic devices across a packet-switched internetwork is IPV4 which has a capacity for 4.3 billion IP addresses. This limit is imposed because IPV4 uses 32 bit addresses. When it was being designed that capacity looked pretty awesome but when you remember that this is less than the current population of planet Earth it begins to look a little anorexic. The designers of IPV4, in 1976, were Vint Cerf and Robert Khan. Reflecting on it many years later Cerf remarked that as the internet was then just an experiment 4.3 billion addresses seemed to be sufficient. Some experiment!

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