In the case of IP version 6 this is a bit different.
We have to realize the sixth version of IP protocol is being increasingly used especially in Asia where
the IP version 6 protocol has already become a default one.
Other versions have fallen out of use.
In Europe the fourth version of the protocol is still largely in use.
Nevertheless even their operating systems of hosts and networking devices have built an IP version 6
support enabled by default.
Also IP version 6 is the default version of this protocol.
If two hosts can use IP version 6 to communicate they will opt for this version instead of the fourth
one.
Administrators who for the time being have decided to ignore IP version 6 protocol managed networks
in which this version is used and works administrators didn't not seem to realize this and do not monitor
the IP version 6 traffic.
This is a serious problem.
Now why do we even have the sixth version of the IP protocol.
The primary reason is that we've run out of IP version 4 addresses in the United States where the Internet
was developed.
There is still a number of IP version 4 addresses available.
Some universities have bought out whole classes of addresses in advance.
They possess a bigger pool of addresses than countries such as China or India these countries started
to run out of addresses some time ago already.
And so the transition to IP version 6 how to solve the problem of IP version 4 address exhaustion you
can increase the pool of available addresses.
IP addresses were extended from 32 to 128 bits a 128 bit number is a large one.
So it is saved in a different format.
The format consists of four digit groups of hexadecimal numbers.
IP version 6 introduced an important change related to sudden getting an IP version 6 addresses the
network address always has a fixed link.
This is a marked difference from that IP version 4 which utilizes either classes or a CD-R and doesn't
allow you to distinguish between the network and the host address and IP version 6.
The first 64 bits always correspond to the network address 48 bits describe the main network and the
remaining bits correspond the subnets the less 64 bits of the IP version 6 addresses the host address
the IP version 4 addresses are arranged hierarchically.
You can easily group them together into sublets.