IPv4 Exhaustion Analysis

A new study has called into question the previous received wisdom that IPv4 addresses are running out, forcing the long-heralded move to IPv6.  The migration to IPv6 is needed because it offers a massively increased address space as well as advantages in mobility and security. The use of technologies such as Network Address Translation, which means corporate PCs all sit behind a small range of IP addresses, has held back the long anticipated move towards IPv6 for years.

Net shakeup looms as IPv4 resources start running low, Theregister.co.uk

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