Internet Protocol Version four.
IPV four is one of the core protocols of standards based networking methods on the Internet.
It was described in IETF publication RFC 791in 1981, and it was the first version deployed for production
in the Arpanet in 1983.
It still routes most Internet traffic today despite the ongoing deployment of the successor protocol.
IPV six.
With IPv4.
Each address consists of four octets.
Octet stands for eight digit binary numbers, so an IPV four address is 32 bits in total.
So that means we can theoretically address two to the power of 32 devices with IPV four.
So that means the address space of IPV four is about 4.3 billion.
Sounds like it's a big number, right?
IPV four is represented by the decimal equivalent of four octets separated by dots.
The biggest number one can make with eight binary digits is two to the power of eight minus one.
That means 255.
So each octet can be any number from 0 to 255.
Now.
Also, there are special meanings associated with two different ending numbers.
In general, a last number of zero stands for the network.
Let's call that the base address.
And a last number of 255 stands for all hosts on that network called the Broadcast Address.
Computers that are on the same local network share three of the four numbers.
A computer can be on more than one network, so it can also have several names.