The IP vision for header analysis so is another important one for your theoretical background, but that is not necessary for your corporate environment you go for the experiences when you’re working in the live environment so we will never deal with these IP headers IP analyzing iPad analysis and this sort of things we are not going to deal with but instead what we actually practice in the corporate environment is the submitting that we have going through so far uh but uh so uh hope you can hear me guys yes hello okay, so this is uh the last part of the submarine that we are going to learn like say for example I’ll give you one again exercise that we need to look at I need these things like if I say I have the IP address of 192 168 248 dot let’s say for example 16 slash 28 networks so we can’t see are you writing something yes coming going okay no worries just uh ignore that turn so uh what I’m asking here is it’s something like this.
Let’s say for example if I say 192 I have one nine two one six eight two four eight dots, uh 16 slashes 28 networks you need to just find out several eyepieces in this IP block and then this eyepiece what are those cyclists number of IPs in this IP block and what is this IP what are this IP can you guys quickly go through this because you know what is this let me say 192.168.248.60 so you should know that whenever you say slash 28 you should know a number of this is slash 28 in the sense they have assigned from the 232-bit subnet they have assigned first 28 for the network and the rest of the c four bits for the last four bits for the cost so with that hint can you guys just start on calculating this thing so I’ll give you five minutes so just go through it and then I will definitely explain what about the did you able to find out the number of IPs and the details is that 15 sir 16 16 yeah yes, yes yeah it says not the 15 it’s actually six now I’ll explain that.
So let’s let me go through this uh particular theoretical part again just look at when you look at this particular one like slash 28 when you say slash 28 if I write it down in the um subnet mask with the binaries’ MANA so it contains 28 one’s four five six seven eight dots one two three four five six seven eight so 284 there are 24 ones 1 2 3 4 now 28 so when you say 28 slashes 28 what they are defining is the network part so it contains 28 ones the rest of the thing will go four zeros one two three four so these four zeros will contain the host details that means there are four bits assigned for the host that means it contains two to the power so the last four bits yeah four bits assigned for the assign for the horse it means that contain two to the power okay nothing to worry just uh focused on this what I’m saying so when you say 192 168 8 oh sorry 2 4 8 dots 16 slashes 20 in it 20 slashes 28 in the sense.
What they are referring to here is one two three four five six seven eight dots that is 24 once another one one two three four so that conclude the 28 networks that are the slash 28 and they have assigned the rest of the four bits that is this another zero zeros for the host addresses so that means they have assigned four bits for the c uh the cost first that is but what exactly saying is you can create two to the power 4 number of host eyepiece in here that means exactly how much is it 16 2 to the power 4 in the sense 6 gigs so when you say slash 28th chapter so you will be able to create the number of parts of 16 so if you if they are saying that you are starting point on the IP address is 192 248 nine two one six eight two four eight sixteen so from this point onwards you can assign another 16 IPS to the one approach.
That means 192 168 248 17 that is the second night 192 168 248 18 one ninety two one six eight two four eight ninety likewise we can add sixteen IP addresses nineteen one ninety two point twenty one nine two two eight twenty one one ninety two twenty two one nine two eight twenty three twenty four twenty five 26 27 28 29 30 and 31 so you will be able to see that this contains 16 IP addresses so this particular network this particular network when you say 192.168.248.16 28 that contains 16 host 16 hosts which is starting point is 0.16 and that will go to 31, so there are 16 IP addresses is it clear guys guys yes sir yes sir okay what about the others excuse me so then here also you can start with like this 192 168 248.0 polyvinyl 248.1 248.2 248.3 248.4 248.5 248.6 2.8.7 248.9 so 8 248.9 248.10 248.11 248.12 248.13 248.14 24.50 is it clear guys right it’s a simple thing so separating is not a much complicated task so it’s very, very much simple thing which you if you understand the concepts.
You can easily go through it now what I want to highlight here is when you are going through this particular environment see here you have the look at here whenever you define the iPad press set you have 16 IP but when you go into assigning when you are going to assign into the IP like say for example to the host post there are two rules always the first IP address of to submit the first IP address of this update in here it is 191.68248.7 in this update it is 220.127.116.11.0 always keep in mind the first subnet type address first IP address of that particular submit has been reserved for what broadcast yeah the always this first IP address of the subnet any submit it can be anything even if you go through something like this if you go through something like just the basic class c sub name so when you say slash 24 the first type address of here is one nine two one six eight one dot zero.
So that will we have the two to the power eight that is we can assign 256 IP addresses so the last IP address on here is 192.168.1.2.55 so because we can assign 256 IP addresses because here it says if you can see here it is assigning uh slash 24 networks that mean first 24 bits assigned for the network the last eight bits are assigned for the host.