IPv4 address exhaustion has forced the Indian Government to unveil a plan to implement IPv6 by end of 2017. Internet Protocol version 4 or IPv4 provides users with a collection of 4.294 billion addresses which is quite less as compared to the 3.4x10^28 addresses available in IPv6.
Factors like increasing number of mobile devices, inefficient internet use, internet demographics and always-on connections have led to rapid depletion of IPv4 address stacks. Following shortage of addresses in IPv4 DoT has asked the government to design a transition plan which will see migration to the IPv6 interface. In addition, the plan also makes it clear that organizations should install infrastructure that support IPv6 by the end of 2014. The roadmap suggests that all business organizations should be able to carry IPv6 traffic on dual stack or native IPv6. Dual Stack refers to a network infrastructure that enables IPv4 and IPv6 transmissions to run side by side effectively However, in most cases it isn't possible to implement such a network as outdated IPv4 infrastructures are not designed to support IPv6 traffic. In order to implement IPv6 with immediate effect, the Govt. has asked that IPv6 equipment should be made available for government projects for seamless and systematic transition from IPv4.
These IPv6 addresses will be allocated to citizen centric services like tele-education, rural health care, smart grid, smart building, smart metering and related avenues so as to develop the country both socially and economically.