Hi, everyone, welcome to this lecture.
In this lecture, we are going to talk about Internet protocol addresses, which is also called IP addresses.
So Internet protocol addresses makes the world go round or at least enable us to email, Skype, navigate
to the web and many more things.
So it is almost as important as well going out.
So it's still the device.
It could be computer, laptop, phone, tablet and many more is assigned an IP address.
And this is what enabled us to communicate and connect with it.
So imagine an IP address as similar to your house address.
So without that particular address, no one could find you and send you mail.
So the IP address system we are presently using in this particular time as IP was in full, which is
also called IP refought.
So it is made up of 32 bit with having for updates or we can say for group of APIs.
So if you want to see it, you can see here we are having for updates, which is containing eight bits,
which means one byte.
So this is the decimal representation of number 172 and this is the binary representation of this particular
number, which is this.
And this is for 16 and two, five, four and one.
So this is how IP was in four or IP before address.
Looks like.
As you can see here, we are having whole chunks of update, which means 32.
Simply 32 bits, OK?
Now, if we talk about like, for instance.
We're having this particular IP address, so each of the numbers between the P a DOT, which as you
can see here, this is dot, dot, dot, dot.
OK, so it is nothing, but it is the equivalent of eight bit.
So this means that we calculate the base to number that computers users represent by the eight bits
and convert them into the decimal number that you are more comfortable to working with.
So each one of the update is capable of holding a bit, representing numbers within range of zero to
255, which simply means that we are having this octave, this octave disaffected and besotted.
OK, so every octave can contain only zero to two to fifty five numbers.
OK, so this is the range.
That we have here.
OK, so I think it is clear.
So it is nothing but to the to the power aide.
OK, Synagis.
Let's talk about some classes of Idrissa, so before doing before going to classes of Ferdowsi's, first
of all, it is OK.
So that.
It will appear to us, OK, now everything is fine.
Now, if you talk about the classes of IP addresses, so IP addresses are generally put into three classes,
so as you can see that the first class that we have is zero zero zero zero dot and 127 dot to Phi Phi
Phi Phi like this.
And then we have in class number two, this is the class and the class descenders.
So we're having all these kinds of class.
So in the future lectures, we are going to go about all these classes.
OK, so guys, if you want to understand what is private IP and what is a public IP, so if you talk
about public IP address, so what it is.
So computer on the Internet is identified by a unique 32 bit address which we have seen.
So public IP addresses are publicly registered with Network Information Center, which is also called
NCIC, to avoid IP conflicts.
So computer on router protected local area network need not to be accessed by the public for the reason
he has reserved 13 addresses that can never be registered publicly.
So those are called as public IP.
So if you talk about what is private IP, so if you talk about the IP address of the computer inside
Vilan, which is wireless local area network, which we have seen that 192 but 160 are one zero one.
OK, let me write it here so that it will be easy to understand.
One ninety two.
Sorry for the by and writing, because I'm doing this with the help of my Mouse 168.
The thing is, you need to understand what I want to teach you.
OK, so we are having this particular iPad, just 13, and as a result, Baida and Nici are divided
into three class.
So now let's see what those classes are.
OK, so we are having these many class.
So the first class is called this class.
OK, so the IP range, as you can see here from here to here.
So this is nothing but.
These particular glass contains maximum hose to six seven seven seven two hundred sixteen and use it
for large network is spread across countries.
We are not contributor's facilities.
OK then OK then we are having a dozen.
Then we are having Glasby screened.
As you can see, this is the range of Glaspie and it is having maximum horsed around.
Let me write it here, let me write it for this first, OK, 16.
Seven, seven, seven.
These are the number of holes that can connect using this particular IP address and then for this Glasby
IP address, we are having zero four eight nine five six seven.
These are the maximum and it is used for networks like universities.
These are simply reserved by the reserve, for the networks, for the universities.
Then we are having Glaspie.
So what what is Glaspie?
So Class B is having around maximum of sixty five thousand five hundred thirty six.
OK, I think.
Things of his to you.
OK, so this is nothing, but this is perfect for the home.
OK, so we are having three classes now.
Things are clear here.
We are having three classes.
The first classes for the network is spread across the cities.
And the second class, which is Class B, is for the networks like universities.
And then we are having Class B, which is used for the home.
OK, so this concept is not clear.
So private.
Let me.
OK, so OK, so private IP addresses are assigned to the client devices connected to the router.
So client device can be your laptop, mobile, tablet, anything which is capable of wireless networking.
OK, so if you want to check IP address so you can simply go to Google and simply there my IP, then
it will give you your public IP, OK.
It will give you your public IP.
So this is how it looks like.
This is how public and private IP assigned.
And we have talked about all the classes that we have here and everything about all about IP address
that we need to learn.
OK, so guys, this is all for this lecture.