IPV6 is the successor to IPV4
Version 4 of the Internet Protocol is the basis of the Internet until now (June 5, 2012). IPV6 uses addresses of 32 bits that allow up to 4.2 billion addresses. Due to the increasing use of IP addresses these addresses have now been used. For this reason, IPv6 is based on 128 bits. June 6, 2012 has been named World IPv6 Launch, which says many internet providers, etc. Ensure that they are ready for IPv6 from that moment on. It is not only an upgrade in the number of bits, but the two protocols are also not directly interchangeable with each other, so the two protocols have to be used side by side. The protocol also provides room for better routing and network Auto-configuration, security at the IP level is better regulated and mobile nodes are supported. On this website you can see which countries are ready for IPv6.
The new, larger version of the Internet: IPv6 [YouTube]-Uwjt32NvVA [/youtube]