N/APosted on - 11/14/2014
What is a Internet Protocol Version 6 address (IPv6 address)? How is it different from an IPv4 address? What are the benefits of IPv6 addressing? What are the different IPv6 classes? What is their difference in functioning? What is an IPv6 address scope? How are IPv6 addresses denoted? What is Mobile IPv6? What is its need?
All about IpV6 and why we need it
Internet Protocol version 6 (IPv6) is the latest version of Internet Protocol (IP). The older version was IPv4, which is still broadly used. IPv6 is also used a lot. There are many advantages of IPv6 over IPv4.
First of all, the number of unique IP address is a great issue. In IPv4, only 4 billion unique IP addresses could be allocated where IPv6 provides 340 billion billion billion billion unique addresses at the same time! It’s quite large number that will be able to connect all the internet devices of the world to connect to the internet at the same time.
The problem with IPv4 was, it couldn’t work without NAT which converted one unique IP into several subnet connection. IPv6 doesn’t require such option as it can easily connect each device uniquely, providing much more efficiency and effectiveness.
IPv4 used DHCP, a technique to connect a device to a network. It would take quite a complex work where IPv6 uses DHCPv6, simpler and easier connection method.
IPv6 supports better security than threats like Authentication Header, Encapsulating Security Payload etc.
There are lots of other features of IPv6 over IPv4. IPv4 is too old now. I think, every service provider should go for IPv6. The better technology, the better performance and speed.