Today, the June 6th is ipv6 World launch day and I have been impressed with the number of companies in Kenya which have taken the lead to migrate from ipv4 to ipv6. IPv6 or Internet Protocol Version 6 is the next generation protocol for the Internet. It’s designed to provide several advantages over current Internet Protocol Version 4 (or IPv4). It is crazy out there , more than a billion mobile phones, Personal Digital Assistants (PDA), and other wireless devices will require Internet access, and each needs its own unique IP address
So the primary problem with Ipv4 is that the world of internet has ran out of the Ip addresses. And with more internet enabled devices coming to the market everyday, the world is doomed unless it is fixed now. At this point you may want to know the numbers or how many IP addresses IPv6 supports?
It uses 128 bits. ..2 to the power of 128 ends up being 340,282,366,920,938,000,000,000,000,000,000,000,000 unique IP addresses.
This how to say that according to elamb
The extended address length offered by IPv6 eliminates the need to use techniques such as network address translation to avoid running out of the available address space. IPv6 contains addressing and control information to route packets for the next generation Internet.