Friday, February 4, 2011

Running out of IP addresses… ?

 

             “An Internet Protocol address (IP address) is a numerical label assigned to each device (e.g., computer, printer) participating in a computer network that uses the Internet Protocol for communication. An IP address serves two principal functions: host or network interface identification and location addressing. Its role has been characterized as follows: "A name indicates what we seek. An address indicates where it is. A route indicates how to get there, the Wikipedia reports.

 

    

          This IP addresses were having two types of addressing, its better to call it as two varieties of numbering devices:

  • IPv4 – Internet Protocol version 4
  • IPv6 – Internet Protocol version 6

               The founders of IPv4 were so confident that those  confident that they can number  232 ( 4294967296)  unique addresses in the world. Having developed that IPv4 for educational purposes, they never would have even dreamt that their system would get ‘house-filled’ very soon. Apart from the unique numbering there are millions and millions of private networks with those IP addresses…

 

             Now to the surprise, on this 3rd the February, 2010, the last set of possible IPv4 addresses were being used-off and never the less they are estimated to get filled by the week end.  Its time to change from IPv4 to IPv6 for the forth coming devices which will follow the hexa decimal system of numbering IP addresses which can provide the potential for a maximum of 2128, or about 3.403×1038 unique addresses using the new system.

 

What is the difference between IPv4 n IPv6 ?

        There are lot of differences which can be given out, if u need a standard explanation, Google it or Bing it ! Let me give a no man`s explanation of this difference. The primary difference is the numbering system which these versions follow, IPv4 follows binary system and IPv6 follows hexa-decimal system.

1000px-Ipv4_address.svg   

                    1000px-Ipv6_address.svg

Image Source: Wikipedia.com

 

               Never the less, keep counting for the IPv6 also to get exhausted very soon… Only  a new system can solve this issue. Now a question is, “what if all countries start following static IP addresses ?”, lets see about that in our next blog Smile 

 

 

bYe !