How IPv6 was Born
During 1988-1989 Internet has started to grow in an extremely high speed.
The ability to scale Internet for this high demands requires a limitless supply of IP addresses.
First step was taken by IETF in 1991.
In 1991 IETF decided that the current version of IPv4 had outlived its design and need
to develop a new protocol for Internet.
In 1994 IETF gave a clear direction of IPv6.
In December 1995 the first version of IPv6 address specification came to the scean.
More information is on RFC 1883.
Do you know how many addresses are available ???
IPv6 uses a 128-bit address, meaning that we have a maximum of 2¹²⁸ addresses available, or 340,282,366,920,938,463,463,374,607,431,768,211,456, or enough to give multiple IP addresses to every grain of sand on the planet.
During 1988-1989 Internet has started to grow in an extremely high speed.
The ability to scale Internet for this high demands requires a limitless supply of IP addresses.
First step was taken by IETF in 1991.
In 1991 IETF decided that the current version of IPv4 had outlived its design and need
to develop a new protocol for Internet.
In 1994 IETF gave a clear direction of IPv6.
In December 1995 the first version of IPv6 address specification came to the scean.
More information is on RFC 1883.
Do you know how many addresses are available ???
IPv6 uses a 128-bit address, meaning that we have a maximum of 2¹²⁸ addresses available, or 340,282,366,920,938,463,463,374,607,431,768,211,456, or enough to give multiple IP addresses to every grain of sand on the planet.
What to do with this huge address space !!!
Almost all electronic devices can have an IPv6 address .. PDA, Mobile Phones,
Tablet PC, Car, TV, Washing Machines and even Wiper blades on a car can have..
Do we need to use NAT any more ???
With the amount of available IPv6 asddresses all the hosts can use public routeble IP's. So no need for NAT.
Do the end host needs to be configured for IPv6 address ???
With the Stateless autoconfiguration the end host that wishes to obtain an IPv6 address creates an interface identifier, then obtains a network prefix that is prepended to the interface identifier. Using the link-local address of the router, the host has instant IPv6 connectivity. Most of the communication in stateless autoconfiguration uses the ICMPv6 protocol.
Do the end host needs to be configured for IPv6 address ???
With the Stateless autoconfiguration the end host that wishes to obtain an IPv6 address creates an interface identifier, then obtains a network prefix that is prepended to the interface identifier. Using the link-local address of the router, the host has instant IPv6 connectivity. Most of the communication in stateless autoconfiguration uses the ICMPv6 protocol.
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