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Not IPV for an IPV six.



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Hello, everyone.



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Today we're going to talk about not and pretty much what it is and what it is used for.



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So not pretty much is a mechanism that makes the traffic from a private network to becoming just a single



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vital Internet address, but not to everywhere.



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And so, in the most simple words, not is basically the service which effectively hides the private



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addresses from the Internet.



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So, yes, some of the addresses are actually private and they're used by different devices.



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So, for example, if you want your network to use multiple IP addresses, you can locally use multiple



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private IP addresses and connect the Internet by only a single IP address.



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In that way, you are saving quite a lot of public IP addresses that you actually don't need to use



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because in your private network you can pretty much choose any IP address for any device.



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So, for example, if you're a company and you have a lot, a lot, a lot of machines in your seat,



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this doesn't mean that you need to have public IP addresses for all of them.



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Instead, you can hear for all of your machines, different local or private IP addresses and only one



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public IP addresses, which will connect all these machines to Internet.



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So in terms of that, there are two types of the nut operations.



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The first one is static, where a private IP address is always translated to the same public IP address.



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And by doing this, you, your host within the network, will be visible in Internet.



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There were social economic way where a router is assigned to different IP addresses.



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So each private IP address is mapped using only one of the IP addresses or the router that has been



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assigned to it.



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And when doing that, it is actually very important when using the service to have an increased security



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because we need to make it difficult for external host to enter the network through the public IP address.



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For example, you wouldn't want somebody to assess your IP address and consequently your devices tend



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to login into your mushiness through Internet.



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Now let's talk about the different IP types and we're going to start by IP reform.



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So IP before the basic idea behind it is to allow computers to connect to Internet regardless why device,



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what device we use.



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So basically each device that is connected to Internet gets a unique code that can be used to receive



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data from our connections.



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The IP protocol pretty much consists of 32 bits lens, which means that we have access with the IP before



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to over four point three billion IP addresses out there.



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And as we said, the IP before is already to its maximum capacity.



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So all of those IP addresses, all of these numbers have already been reached.



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So usually the IP addresses from the IP before consist normally of four groups of eight bits.



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Eight bits means that there are 256 possible numbers for each position.



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For each of those four positions, you have 256 possible numbers.



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And this is how actually we're calculating how many IP before IP addresses are.



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You just need to multiply 256, four times.



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So 256 multiplied by 256, multiplied by 256, multiplied by 256.



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And you get some number around four point three billion.



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So according the rules for obtaining the IP before their few classes, that arranging different IP addresses



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Class A, Class B, class C, class duties, which is the multicast, and also Class E, which is the



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experimental class.



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So the multicast and the experimental IP addresses usually cannot be used as a source of addresses.



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So we cannot usually use this Halverson's because they are already in use.



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We normally have the IP address is zero point zero point zero point zero as an identifier of the IP



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before and 127 Doderer.



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Zero zero US identifier of the physical complex over the network.



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And also, we have the two hundred fifty five zero zero zero, which basically identifies the broadcast



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overseas, so we can also not choose just once.



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Now, what is IPV six and what is the use for it and what is the need for it?



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Well, basically, the IPV six consists of arsenate and with the eight bits, which is way more numbers



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comparing to IP before.



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And we created this space with IP addresses simply because we run out of IP addresses over the Web.



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So we wanted to ensure that we have the space and the IPV six addresses are nowhere near to getting



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expired because there are so many of them that we'll never be able to reach.



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They basically consist of aid groups of 16 bits.



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And as you can see, an example of IPV six Andrius, you can see that 16 bits means that this aid groups



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can include not only numbers, but also letters which increase further the number of possible IP addresses.



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For example, if we go now to the terminal, we can actually check that.



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Let's exit here and then I will write you config.



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And if you take a look here, you can see that in the Ethernet sorry, in the eye net or the Internet,



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we can see an example of the IPV six outrace.



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And you can see in Init six, which is saying to us that is IPV six format of outrace and you can see



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all the letters.



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So this is actually an IP address.



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And for example, if the most of the IP address is IP before you can actually see that here we get it



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in that format.



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So you can make the difference between the IPV six, which is this type of galleries, and Iku four,



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which is the type of IP address.



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And if you want to take a look at your computer, you can definitely do it with the IF config command,



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which will basically show you all the IP addresses on all the devices connected to your computer that



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say.



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Guys, thanks very much for watching that video.



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I hope now you're pretty clear about how your computer connects to Internet and how our devices are



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basically connected to your computer.



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That's it.



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Thank you very much for watching and I'll see you in the next video.