This article is to explain what is IPv6, how does it differ from IPV4, what was the necessity to come up with IPv6, a basic IPv6 address and its compositions, some conventions of IPv6, some features of IPv6 and also the advantages of using IPv6 over IPv4.

What is IPv6 and what was the need for its introduction?

IPv6 is a new IP addressing scheme. It is set to replace the IPv4 IP addressing scheme that is currently in place. You should be familiar with 169.254.0.16 type of IP address which is essentially an IPv4 structure for an IP address with 32 bits (four sections of eight bits). The primary reason to bring in a new addressing scheme is because there is expected to be a shortage of the public IP addresses that is given to companies, web hosts and also individuals. While the current IPv4 address schemes can provide 17 million useful addresses (approximately), the new IPv6 format is expected to provide at least 18 trillion useful addresses.

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