Describe (using your own words) why IP addresses for devices connected to the Internet are due to run out shortly and propose what possible solutions have been put forward to address this massive ‘time-bomb’?
New Internet Protocol (IP) addresses are believed to be running out rapidly. It could run out in just four years’ time according to John Curran, the head of the American Registry of Internet numbers (ARIN).
Due to an increase of new users in mainly India and China, the new IP addresses are being used up rapidly. The crisis of falling numbers of new IP addresses may result in an increase in the price of internet access.
The current and most popular network layer protocol in use today is IPv4, where “v4” meaning that they are made up of four integers between 0 and 225. This allows 4.3 billion addresses, which is not quite enough to cover the new Asian growth, in internet use.
To solve this problem, IPv6 addresses, using six integers, are planned for the future, in order to handle the increased demand for IP addresses. IPv6 is a conservative extension of IPv4. The main feature of IPv6 is that it has a larger address space; addresses in IPv6 are 128 bits long while addresses in Ipv4 are 32 bits long.
The adoption of IPv6 has been slow but as of 2008, The US government systems will be supporting IPv6.
Resources
http://en.wikipedia.org/wiki/IPv6
http://news.domainmonster.com/ip_address_shortage/
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