CN | IP address Subnetting Supernetting | Subnets, Subnet Mask, Routing | Ravindrababu Ravula
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- Опубликовано: 5 окт 2024
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Your lectures have saved my exams, made me topper, and are helping in preparation of placements.You rock !!
congrats
Where did u get placed ?
@@anshuman1964 lol
So beautiful lady I wanna hug you
@@secular8887 I agree with you
You are the first person who made me understand the concept clearly. Thank you so much.
Teaching is an art. I don't have the words for praise him. I am a beginner to understand Network concepts and tried to read some document, nothing is impressing me to read those. This video really very simple to understand the concepts. Thank you Ravindrababu for this good jon
if every one teaches like this every cse student will be a bill gates,mark zuker, steve jobs and why not we can become a ravindra babu ravula also . thank you very much for training students without rupee.
You said thr truth
can you please tell the, what he said the name of the subnet mask, whenever they are equal size?
Steve Jobs wasn't computer geek!
who said you that ? did you met steve jobs personally? and do you know who is said to be fool? the person who leaves important things and see only for comments. lol and RIP ajay jadhav
Those guys were self-taught! An excellent teacher can only help you score better than average marks in a random entrance examination
India needs more teacher like you.. hats off sir.. this is how every subject should be taught.
S3 ranges between 128 - 191 and S4 ranges between 192 - 255
Correct
@@Rohit-tz6gs bhai number ki range aur binary values match nai kar rahe...online toh sahi se padh lo
@@vishalcseiitghy ok
Yeah
It's beyond me as to why would anyone dislike this, because this is fantastic.
Now I wished that my professor could should just had opened your video during lectures.
You will be remembered soo long for your CN skills.
Best video for understanding subnet,literally i searched and watched dozens of videos but this made everything clear.
I am just thinking how much hard work you might have invested to understand these nightmare concepts of computer networks......Meru vandeluh batkali sir (Long Live) !!!
U r a genius.. How can someone be so fluent!!!
I really like how you write down things and explain.That is exactly the way I learn.
Just an edit you would require.
At 16:00 have a watch over the s4 and s3. Their Ip ranges got swapped by mistake i think. Thats all.
Nice Explanation. I liked it (y)
+rachit saxena I agree with you bro
i agree with u........
rachit saxena came here to say the same
I agree with you....
s4 and s3 are just the names........its not necessary to assign lower range to s3 and higher to s4.
I have fallen in love with this subject after watching your videos. Keep going sir!!
You are brilliant. Thank you very much.
in 115-16 min the range of ip address swapped. for s4 it would be 128-191 and for s3 it would be 192-255. the class is very good. thanks
This is an excellent course. Not only is this helpful for College exams, but also for GATE. Thank you Ravindra
Hat's off to Ravindrababu Ravula, Sir, you have really penetrated the network.
first bengali youtuber with a nice accent
I have a doubt as subnet S3 will range from 128-192 and subnet S4 will range from 192-255. Am i right?
+Sambhabi Guha Thakurta s3 already has taken 192 and s3 will start from 193
excellent details and examples making it understand very easily.
Thank you sir.. I never understood subnetting during my acedmics.
these vedio lectures cleared all my doubts. No one can explain better than you Sir. thanks
there is a mistake at 15:54....the ranges of s3 and s4 are interchanged!
yes
yes
you are brillant,gadha
yeah u r right
Yea..
i think subnet with 10(s3 ) should have iP's 128 - 191 and subnet with 11(s4) should have iP's 192-255. to make continuity lecturrer use s1,s2,s3,s4 .
anyways it is just a slip of the pen. clearly understood the way you explain everything make every difficult problem a simple one .
Thanks A lot for the videos !
the videos are truly helpful.after attending a few mock tests i have seen all the questions have been covered here in these videos. i feel really confident fr this year's gate. thank you Sir.
class c network is 200.1.2.0
we divide network into 2 part by performing subnetting
1 part
200.1.2.0- NID
200.1.2.127- DBA
2 part
200.1.2.128- NID
200.1.2.255- DBA
inside Network is divided into 2 part Now from Outside the network if a host want to send a packet to all host , it will set destination address 200.1.2.255 and sent to router. according to router 200.1.2.255 is the DBA of 2 part then it will sent this to all host of 2 part.
my question is how the router will determine, whether to sent this to all or individual network
Irshad Ali
Because you are sending from outside.
Internal router is receiving destination address from outside router.
Therefore it is getting broadcasted into whole network.
Gayatri Basude you answered my question quit instant hahahah .. But i got the answer of my question immediately after watching this video 2 time. Whatever, thanks for your answer
R u preparing for gate or anything else ?
Awesome Explanation.. No words for ur teaching.. U know one thing sir, u r better than any IIT teacher.. I love watching ur lecture.. ur a person who created interest in my study.. before that I think CS is boring.. but when I start watching ur lecture it completely changed my thinking.. I will recommend u to everybody.. I m preparing for gate 2019, Now I confident for it..
At last ur ultimate teacher I ever seen.. no words literally.
Thanks for ur contribution for us :-)
Aap nahi hotha tho mein kya hotha....
Meeru ganaka lekapote nenu emi ayipoyinde vadini....
Without you, I can't imagine......
Very good stuff ! Keep up the hard work !Much appreciated
excellently explained. thanks a lot.
awesome way of teaching....now i can say my basic concepts are clear.
i love you
the way you teach is fantastic
its nice,thank you , also upload your workout & diet plan
really great physic
Hardwork
pagal log
Superb.I have never got inspired like this by any other teachers!!
Just now I am learning. Your classes are really helpful to me Thank you..
You didn't take even a single rupee to teach all these things.... It shows that humanity is not dead yet 🙆🙆 ... you must get the biggest award for doing this
Forget Bill Gates or Zuckerberg, we need more Ravindrababu Ravula's in our country.
became a fan for u sir.
thanks for u and ur thinking
Plz check once again for subnet 10 the range is from 128 - 191 and for 11 the range is from 192 - 255 ...
Simple and clear explanation. Really helpful,learning start from the very basic concepts. Cool
Sir, you are really good at explaining:)
Is subnet mask a property of the network itself? By that logic, subnet mask should be a constant number for the entire network. Because in the example of 200.1.2.0 network being divided into 4 subnets, the configuration of the hosts in the network decides how many 0's are there, and network ID, class and number of subnets remain constant throughout the lifetime of the network. So, why keep on repeating the value of subnet mask in each entry of the routing table, if it is indeed a constant quantity?
very very thank you... you teach very well... hatsoff u...
Amazing Explanation !!!
18:05 the question bothered me for days, now I can die in peace
me too
Sir you are so clear crisp
Thanks for your great effort. Extremely easy explanation.
You made it so easy to understand. Thanks a lot.
Whether router will consider only binary numbers to find the interface or is it possible to have the decimal number to find the interface(ie) for matching with the netID
What if the IP class becomes B instead of C (as in the above example), and I would like to divide the network to four(04) subnet?
Please explain sir.
You are god. Thank u 4 being god.
Your videos are amazing . thank you
Dear Ravindrababu, never ever heard someone explaining Subnetting like this .. You are Awesome here !!!Do we have any lectures to learn about other aspects of N/W like how to build Fault Tolerant Network, Detail Firewall concepts etcThanks In anticipation
awesome.....what a teacher
for me you are like god
crystal clear
AWESOME VIDEO ,I LEARN A LOT FROM yoUR VIDEO.
very much thanks. it helped to clear my doubts.
everything is fine..!!!
one extra point for your biceps sir..which sometimes distracts me while going through the videos :P
please edit the part where you by mistake wrote s3 and s4 information wrongly while dividing the network into 4 subnets.... and the explaining great .. thank you :)
you are super sir..thank you so much for your lectures sir..you are helping us a lot.
Crystal clear concept.
one of the best lectures on youtube.cheers mate
Ravi, your lessons are well organized , however , when you talk about sub netting, you should talk about it like logical segregation. (Let us not know into route summarization, supernetting now : ) ) . Your heirarchial routing is right in one sense, you have an organization with multiple public IP , but the DG might be advertizing with a summarized route. The problem with that is that a subnet in essence a network a complete autonomous L3 network. Let us for simplicity assume we are dealing with public ip's then subnet is like a network, and routes are advertized within an AS (assuming OSPF) as a network with classless boundaries..........in that case you might now have hierarchical routing...... hats off to you... you are better than most classes i have taken in India, but i believe half the battle is about the student visualizing "network segmentation" ....(both logical an physical) food for thought!!!!!!
I have a query,
In the part where we handle the ambiguity according to the perspective of the sender, does that mean that a directed broadcast can not be sent to a single subnet from outside of the network? For example, if a packet is received from outside the network with destination = 200.1.2.255, that will mean it is a directed broadcast for the whole network.
But is there a mechanism by which a directed broadcast can be issued only for the second (or more generally, for the last) subnet?
Moreover, if we want to send a directed broadcast for the first subnet (s1), would issuing the destination as 200.1.2.127 work?
Note: all the packets are being sent from a source outside of the network
Thanks in advanced :)
The outside network doesn't know about the subnets inside the recipient network. In your query, 200.1.2.255,will send a directed broadcast to the network and, 200.1.2.127 will be a uni-cast (In this case, since this address is SID of subnet-1, the IP will not be available)
Wouldn't the internal router identify the 200.1.2.127 as the broadcast address of the first subnet, causing it to flooding on the interface that connects with this subnet? I mean, that is what seems more logical.
I also have the same query.
u r the best ....!!!!
you are great sir.
Thanks a lot for making this video!
Sir here msb bits are choosen for subnet id. Whether we can chose any other bit positions for creating subnet ids. If so what will be their subnet masks
Clr explanation sir.... also make full playlist on computer networks and dbms for placement preparation ..
Uncode is nothing but our wonderful Ravula sir ;)
The range at time 15.07 has interchanged S3 and S4's ranges mistakenly.
Very nice vdo sir. It was very helpful.
Sir, S3 and S4 range were swapped out by you mistakely..please check it out at 15:36..! bits fixed with 11 should be from range 192-255 and bits fixed with 10 should be in range 128-191.
Thank You Sir..
So what is interface here ? Is it some kind of control that sends the packets further to its respective subnet?
And what happens if a random sender sends a data to destination IP address 200.1.2.127
Thanks for putting up the videos online...The concepts are 100% clear now (y)
Hi Ravinder,
As you are explained, 200.1.2.0 is for whole network or for subnet-1, as per my understanding it depending upon packet masking, i mean if packet as 200.1.2.0/24 for whole network and if packet 200.1.2.0/25 then it's for subnet-1, let me correct if any.
what if the external router has to send a packet to an ip address which denotes either a network id or directed broadcast id for any of the subnetted network??
i.e for example 200.1.2.0 is divided into 2 subnets. they will be 200.1.2.0 - 200.1.2.127
and 200.1.2.128 - 200.1.2.255
so now if the packet coming from an external router has to be sent to 200.1.2.127 or 200.1.2.128 . In this case where will the packet reach?
My doubts precisely.
200.1.2.127 is broadcast address for first /25 subnet; 200.1.2.128 is network Id for second subnet. Depending how router configured, packets aimed at either of these addresses will go nowhere or bounced back by ICMP protocol codes 0 & 1 Destination host or network unreachable
In case of 2 subnets, if a packet is coming from external source (which will be unaware of the subnetting) then what will 200.1.2.127 (DBA of sub-net 1) and 200.1.2.128 (ID of sub-net 2) mean to the external source ?
Very well Explained
Good Morning Sir. Today I was watching this video. There is some error IP range of S3 & S4 should interchange.
Sir in this video you are explaining about Class c address.Then why you considered only the starting bit.why didn't you considered starting 3 bits.You solved this problem assuming Class A sir.Thank you
When you divide host id you don't need to consider how its respective class is divided.
Since 2 subnets were required that's why he used 1 bit. Similarly when 4 subnets were required he used 2 bits. Basically
' no of div req= 2^n '
here n=no of bits
realy nice video
excellent thank you
Hi, Can i know how and why "if we choose to divide 2 subnet in 1 entire network, why we choose 1 bit ?" as same 4 subnet in a network, why we choose 2 subnet? how it work ? how we should know that?
Good question
thanks sir...the lecture was really helping...
Its really good session. Thanks for sharing it.
Great Explanation ... keep it up (Y) thank u so much :)
thank you very much sir for this video
Sir, from 9:35 to 12:46, you explained subnetting.
1. If a packet originates from outside the organization and receiver's IP address is 200.1.2.255, the packet is broadcasted to both the Subnets.
2. If a packet originates from subnet A and receiver's IP address is 200.1.2.255, the packet is broadcasted to Subnet B
3. If a packet originates from subnet B and receiver's IP address is 200.1.2.127, the packet is broadcasted to Subnet A.
Sir my question is, what will happen if the packet originates from outside the organization and the destination IP address is 200.1.2.127 ?
it will go to the host having this ip as sir said it depends upon the perspective of looking
Beautifully explained tnx!
Sir can we divide a network into 3 parts or a network can only be divided according to the result of the power of 2. And sir you are a great teacher.👏👏👏
Sir one doubt. If the connection matches with two or more networks then you told to go with the subnet mask with more number of 1s, but in the above routing table all the networks have the same Subnet mask. So wha should be done?
sir,here we divide the subnet into 4 part if any other network (e,other than this subnet)give DBA as 200.1.2.192.then what will happened because it is the s4 subnet id.plz reply?
finally i am able to understand subnetting...tysm sir
Very Well explained !!!
Very useful video👌👌👌👌
suppose a packet is coming from second subnet and i want to transmit that packet to the entire network how this is gonna happen and what should be the destination ip address
Dear Sir there is typos (at 16 minutes ) s3->10->(128-191) and s4->11->(192-255)