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IPv4 addresses to exhaust soon
06-22-2010, 12:27 AM
Post: #1
IPv4 addresses to exhaust soon
IPv4 ip addresses days are numbered. The remaining pool of unallocated IPv4 addresses could be depleted as early as December due to unprecedented levels of broadband and wireless adoption in the Asia Pacific region, experts say.

Per Network World here http://www.networkworld.com/news/2010/06...ml?hpg1=bn

The acceleration of IPv4 address depletion is putting more pressure on network operators to migrate to IPv6, the long-anticipated upgrade to IPv4, the Internet's main communications protocol.

As you may be aware, IPv4 uses 32-bit addresses and can support 4.3 billion devices connected directly to the Internet. IPv6, on the other hand, uses 128-bit addresses and supports a virtually unlimited number of devices -- 2 to the 128th power.

"The Asia Pacific region has very large economies that are underserved by IP addresses such as India, China and other places," Jimmerson says. "They are really seeing a big surge in broadband deployment and wireless data handset deployment, and that translates into having to have unique IP address space. That trend is likely to continue."

It is important to note that most security precautions were ignored in the development of IPv4, and they have continued to be a challenge for application developers since then. The IPsec security protocol was an afterthought, and Network Address Translation (NAT), which has been widely deployed to solve the address-depletion problem and for perceived security benefits, makes true end-to-end, secure applications difficult to deploy.

NAT is eliminated in IPv6, allowing all nodes to communicate with one another using globally routable addresses. Since IPv6 offers almost infinite address space, NAT isn't needed.

INTEC Systems Institute, Inc. has developed a nice "IPv4 Exhaustion Counter" that visualizes the status of IPv4 address exhaustion. You can use the below script to display it on your website, blog etc.

Code:
<script type="text/javascript" language="javascript" src="http://inetcore.com/project/ipv4ec/en-us/wolf_c.js"></script>

Let's get ready to move to the better and more secure IPv6.
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07-20-2010, 05:20 PM
Post: #2
RE: IPv4 addresses to exhaust soon
IPv4 address space could be depleted this year is that IANA has a policy that states that when there are only five remaining /8s, it will automatically give one to each of the registries and thereby deplete the free pool overnight.
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