Hello again.
And the previous two videos where I found them on the web, they explain better way the calculation
and definition of realism and.
And here I found I have a simple solution, which is called this application, which is called the subnet
calculator, I have it on my phone.
I always used it.
It is very simple.
It is essential to know how to calculate by yourself, but this application will save you a lot of time.
Now, when we go to the application, we will have this interface.
It will give us the subnet calculator of the same calculator and most converter.
This is the Vincent calculator, this is the mess Congress are going to go back to the subnet calculator,
we are going to put any IP address.
We are going to use the most famous one.
192, 168, one zero one, one or twenty four, I think will give us every, every single information
about this.
This IP address will give us the the network IP address, the one that we don't use the subnet mask,
which is 24.
This is on this simple.
Then we have here how many hosts can we use?
We can use from 192 168 one and one cell 192, 168, one, two hundred and fifty four.
The broadcast address or the diffusion address in French.
We have this address.
We can't use it available.
That we can use as users is two hundred and fifty four.
And here are the.
The same address is all binary.
There are going to go.
To do realism and.
Are going to go to the V.A. and calculated the valleys and calculated.
Give us the same result as the previous video here we are going to put a a an IP address.
One then zero to 24 are going to give this person's work, 20, we want to host sick animals for health
and networks to help.
And it will give us the information that we want.
It would give us the network for the first 20 holes that we want.
It will give us the network address.
The broadcast address, hosts available hosts that we can use are from the want to turkey and the required.
Those are 20, but collocated are 30.
That means eight.
That means yes, vote to.
Nine nine home, I'm going to say, look, there is nine unused, unused the hosts.
Same thing here.
We want four.
It would give us the mask of 29.
We have from 33 to 38 required.
Those are four, but allocated are six.
The first project, which is the network charges and the broadcast partners here, when we when we did
hear a number to address as I was as it was mentioned in the previous video for the two agencies, it
is always for the one network or the widest area network.
IP addresses is for the connection between two browsers.
Exactly.
This is why we use it always give us only two IP addresses or two of us so we can use.
Then we have the most conversion of any.
I mean, you use this thing here so it can give you any mosque, any mosque and its word garden mosque.
We will see this in the future.
This nationalization is it 24, 25, 26 in the John Boehner?
Also, it gives you details.
We will use this because the servers, such as the windows, it's when you attribute an IP address.
It asks you to put the subnet mask in this form, which is the symbol for all right.
And they are about.
Let's zoom in.
There are five oh, one two three four five classes of IP addresses.
What are these interesting?
That's right.
It gives us some from we can see that just we can we can classify that is it an A or B or C or D or
E class and we can know what is the subnet mask in the symbol of the IP address just by looking at it.
And then it will give us how the number of networks that is possible.
Now, as you can see, the Class A the seven, the subnet mask in December is 255 zero zero zero.
That means it is eight that.
It is slush eight, it's slush eight, the number of horsepower network is 16 million, by the way.
I mean, even if you have millions or almost a billion of networks, it is not enough.
It is not enough.
This is why we used IP physics anyway.
The number of networks are two one two one two seven, and it starts and ends from one zero zero zero
to 120.
6.50 255 255 255.
This, of course, these two addresses.
We cannot use them as hosts because this is a network address and this is a different address, and
all in between are from our for the Class eight.
Now we have the Class B is 255 255 zero zero.
That means it is six 10.
The double of eight.
It is lost six 16, so the number of holes for a network which is six 65000 and the number of networks
it is 16000.
And it starts with one hundred and twenty eight zero zero zero to one one nine one 255 255 255.
It is the same.
So if I said there is a network that is staffed with 172.
Automatically, it is a Class B.
Then we have the siege on the 55 journalists who are 255 zero, which is its last 24 number of offspring
network, which is 254, we thought that a lot the number of networks to millions.
It's that ninety two zero zero zero to 223, 235, 200, 55, 255 we have that are reserved for multi-colour
multicast groups who already saw that in our period here.
It started with two hundred twenty four zero zero zero to 239 255 255 280.
All have each reason for future use or research and development purposes.
Basically, we don't use them at all.
They are prohibiting it starts with 240 zero zero zero, 255, 259, 254, 255, 255 254.
Why this is our last broadcast IP address.
Simply, as I told you before, you can't use them, and this is the final thing that we have on the
floor.
There is no such thing called 254, 65, 255 254.
That means you and all the billions of IP that we have and even we didn't finish them yet.
I'll give you four.
Even we we had them, we didn't finish them yet.
But in some continents such as North America, Europe, etc., the end isn't the end of it all.
No, thank you.
We saw everything in.
And also, there are some types of of of public and private private IP addresses that are known every.
Every are going to see it in the next video.