New Technology : What Is Network Address Translation (NAT) and How Does It Work?

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It’s ironic how one of the biggest threats to the Internet was a product of of nobody predicting how popular it would be. Until recently, the predominant way to assign IP addresses to computers was with the IPv4 system. This allowed the creation of roughly 4.3 billion possible IP addresses, a significant portion of which were shared out to regional Internet authorities in blocks of 16.8 million. Quite early on, it became all to apparent that there wouldn’t be enough supply to satiate the immense demand. With the exhaustion of the IP address supply looking inevitable, people looked for ways...

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