"For 15 years, Internet engineers and policymakers have been
publicizing the need to upgrade the 'Net's current addressing
scheme -- known as IPv4 -- to handle the network-of-network's
explosive growth. Yet many U.S. CIOs and CTOs continue to harbor
misinformation that they use to justify why they are not adopting
the next-generation IPv6 standard.
"This issue is significant because the Internet is running out
of IPv4 addresses. IPv4 uses 32-bit addresses and can support 4.3
billion devices connected directly to the Internet. The
non-compatible replacement protocol, IPv6, uses 128-bit addresses
and supports a virtually unlimited number of devices: 2 to the
"IPv6 MARKET MOMENTUM
"Here is a list of the biggest misconceptions about IPv4
depletion and IPv6 deployment that we've read or heard in recent
"1. The Internet still has plenty of IPv4 addresses."