Internet Protocol IP is the primary protocol in the Internet Layer of the OSI networking model. Its main function (mainly performed by routes) is to deliver packets from a source computer to a destination computer. IPV4 which exists in different forms/classes namely Class A, B, C, D, and E was developed in the 1980s when the internet was in its infancy, further verifications show that 97% of web traffic uses IPv4 as of May 2015. It means that about 3% of web traffic uses IPv6 to generate IPv6 internet. IPv6 was developed in the year 1999 and is intended to replace IPv4, which does not support enough addresses to connect to the entire world’s device.
- IPv4 only supports 4.3billion addresses
- IPv4 address space is poorly allocated, with only 14% of all available addresses in use.
AVERAGE NUMBER OF IPv4 DEVICES ALREADY IN USE TODAY
- Automobiles: 1:2 Billion
- Smart Phones: 1.9 Billion
- Web Sites: 700 Million
Smart Televisions, IP based security Cameras, Smart Wristwatches, Servers Etc. As the world of the internet grows wider, IPv6 addresses are created to accommodate a whole lot of the mentioned devices.
IPv6 INTERNET OVERVIEW
IPv6 address is eight groups of hexadecimal digits separated by colons. It is 128bits Hexadecimal numbers. it is considered the future IP address compared to the 1PV4 addresses which are 32bits Octet numbers commonly used in our present-day Information and Communication Technology.
Here is an example of a valid IPv6 address: 2001:cdba:0000:0000:0000:0000:3267:5643. Any four-digit group of zeroes within an IPv6 address can be brought to a single zero. IPv6 is the successor of the first IP address i.e. IPv4
IPv6 address is designed to uniquely identify an individual network interface of a host (PC, Laptops, IP-Phones, etc.) locating it on the network and thus permitting the routing of IP packets between these hosts. For routing, IP addresses are present in fields of the packet header where they indicate source and destination of the packet.
THE THREE TYPES OF IPv6 ADDRESS
- Unicast addresses. Deliver Packets to one interface.
- Multicast addresses. Deliver Packets to multiple interfaces.
- Anycast addresses. Deliver Packet to the nearest of multiple interfaces (in terms of routing distance).
THE BENEFITS AND USES OF IPV6
IPv6 gives us lots of addresses. There are many other features in this version that makes it worth the cost, time, and effort. Today’s Internet has a ton of unforeseen requirements that simply were not considered when IPv4 was created. We’ve tried to compensate with a collection of add-ons that can actually make implementing them more difficult than they would be if they were applied according to a standard. By default, IPv6 has improved upon and included many of those features as standard and mandatory. One of these sweet new standards is IPsec.