As early as 1990, internet experts predicted that the 4 billion available IP addresses under the IPv4 were not enough to accommodate the rapid growth of internet users worldwide. This expansion signaled a great problem, which meant deciding whether to limit the size and growth rate of the Internet or to disrupt the network by changing to new strategies or technology. | As early as 1990, internet experts predicted that the 4 billion available IP addresses under the IPv4 were not enough to accommodate the rapid growth of internet users worldwide. This expansion signaled a great problem, which meant deciding whether to limit the size and growth rate of the Internet or to disrupt the network by changing to new strategies or technology. |