IPv4 Address Depletion Won't Cause Stampede to IPv6
News Analysis: Despite the depletion of IPv4 address blocks, you don't have to worry about running out of new addresses just yet. But you should start planning to make sure your computer systems are IPv6-capable.When the Internet Assigned Numbers Authority issued the last blocks of IPv4 addresses to the Regional Internet Registrars, it wasn't the end of the world, or even the end of the Internet. In fact, it's not even the end of the world for IPv4 addresses. Chances are, you'll still be able to use IPv4 addresses for a long time, probably for years. What's actually exhausted is the supply of new IPv4 addresses that the IANA can issue to the five regional Internet registries around the world. Those regions can still issue addresses to organizations that need them, and will continue to do so for the next few months.
In fact, the vast number of users of all types on the Internet will likely not notice any changes in their addressing. The major Internet providers all have IPv4 address pools that they can issue as needed and most of them are using private addressing pools and may never need to change. But there are some networks that will see the effects eventually. They include large businesses and other major organizations that act as their own ISPs and have their own pool of addresses. When those run out, they'll need to find a way to react.