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IPV6 | The Perfect Solution To Used Up Internet Address Space

The Internet is probably the most popular thing on this planet today. With everything from chats to voice calls and personal resumes to social networking happening over the internet, it is not surprising that many new devices are coming out to take advantage of this technology. Every device needs an IP address to communicate and this address space is fast exhausting. The IPV6 addressing scheme is supposed to help relieve this problem going forward.

The current IP address space is called the IPv4 scheme. In this scheme there are 32 bits split into four 8 bit fields. These addresses are represented in dotted decimal format and each octet can support values from 0 to 255. Overall this scheme can support 4.3 billion addresses.

While the address space looks pretty large, not all of this space is available for general use. There are many sections of this space that are reserved for special purpose. So the actual space is smaller than this big number. On top of that there are more devices online today than ever before to the spare addresses available for use are quite limited.

This shortage was foreseen by the industry and the researchers much earlier. There have been some very effective stop gap arrangements implemented to overcome this problem. Some of these techniques include Classless Inter Domain Routing (CIDR), Dynamic Host Configuration Protocol (DHCP) and Network Address Translation (NAT). As stated earlier these are not a solution, just stop gap arrangements.

The real way out of this shortage is a good long term solution. The long term solution must not only spare up more address space but also create enough spare addresses for all the needs in the foreseeable future. The IPV6 is that long term solution.

As compared to the 32 bit address scheme in IPV4, the IPv6 uses 128 bit space. This means one can have billions of billions addresses. This is more than sufficient for all the present and future needs for quite some time. Besides, with such a large address space, the service providers need not struggle with NAT, DHCP and other such solutions. This will also help improve the transparency in the internet domain too which is vital now a days.

Thus it is clear that IPv6 is the addressing scheme for the future. All the stakeholders have identified this and are taking steps to migrate to this solution. However, this cannot happen overnight as IPV4 is quite wide spread. But the transition has started, which is the most important thing.