Because you disregard the network octets. They are unchanging. Only the host octets are changed for the subnet mask. I find it easier to use the all ones from the /# then it is simple to do what he does.
Oh my God!!!!! Thanks sooooooooooo much! I've been struggling the past 6 weeks with subnetting, then I find your courses, and in one day, boom! I'm the best in the class when it comes to subnetting. You are awesome! Thank you, thank you, thank you!!!!!!!
This question come in one range class of ip and subnetmask. The IP is class A and the /cidr is in class A also, but how do you reverse that if let say the IP is class A range of 126.125.2.3 and the /cidr is /17 or /25 ?
sry but you did use a confusing octal being both places are 2's so it's hard to say if 252 would advance 3 places or 4 places at a time. sry, i'm dyslexic (with dis-calculus ), it's a-little harder for me. you might be hearing from me again in another CBT. thanks!
i love your vids so much, would you please be able to show me /us how to do a /27 class A subnetting scenerio . I find these longer ones harder to get my head around. and would love someone like you to explain how it works and why we skip octet to octet to get more networks. thanks heaps :)
I still don't get how you're defining these addresses?
How can you start with a lower number than what you had? ex, you started with 110.8.67.101 After the magic number thing, you're going lower to 110.8.0.0
Also how do you know to stop at 110.10.0.0? What defines that range from 110.0-110.10?
@sbrave 110.8.0.0 is the network or subnet that the host 110.8.67.101 belongs in. The goal is to find the network/subnet that the host belongs to... To really understand the whole process I recommend that you watch the playlist of videos that I made for the CCNA at youtube/danscourses You need to understand that the computer sees the addresses in binary and that the router finds the network by ANDing the host address and the subnet mask together in binary. It helps to see it in binary...
would be possible that the computer is making music? the binary code is octaves like in musical scale.. can you help me please to understand the difference between the two?
Thanks Dan, i wish you were teaching this at my college..shhh don't tell them i said that!
Jblessify 1 month ago
Because you disregard the network octets. They are unchanging. Only the host octets are changed for the subnet mask. I find it easier to use the all ones from the /# then it is simple to do what he does.
2007Russdog 1 month ago
Comment removed
hack001011 1 month ago
Oh my God!!!!! Thanks sooooooooooo much! I've been struggling the past 6 weeks with subnetting, then I find your courses, and in one day, boom! I'm the best in the class when it comes to subnetting. You are awesome! Thank you, thank you, thank you!!!!!!!
cristigres 5 months ago 2
very helpful
FallenPatriotic 5 months ago
This question come in one range class of ip and subnetmask. The IP is class A and the /cidr is in class A also, but how do you reverse that if let say the IP is class A range of 126.125.2.3 and the /cidr is /17 or /25 ?
urdhu 5 months ago
sry but you did use a confusing octal being both places are 2's so it's hard to say if 252 would advance 3 places or 4 places at a time. sry, i'm dyslexic (with dis-calculus ), it's a-little harder for me. you might be hearing from me again in another CBT. thanks!
NothingsSomething 7 months ago
if i understand correctly, then, if the interesting octet was , oh say, 252, then the network's would be increased in numbers of 4, is that correct??
and the next network would be 110.12.X.X and the broadcast = 110.12.255.255
first would still = 110.8.0.1
but last would = 110.12.255.254??
NothingsSomething 7 months ago
im wondering if whats the significance of the network part thru anding..?
cjd0013 7 months ago
Comment removed
supermattist 1 year ago
i love your vids so much, would you please be able to show me /us how to do a /27 class A subnetting scenerio . I find these longer ones harder to get my head around. and would love someone like you to explain how it works and why we skip octet to octet to get more networks. thanks heaps :)
supermattist 1 year ago
I still don't get how you're defining these addresses?
How can you start with a lower number than what you had? ex, you started with 110.8.67.101 After the magic number thing, you're going lower to 110.8.0.0
Also how do you know to stop at 110.10.0.0? What defines that range from 110.0-110.10?
sbrave 1 year ago
@sbrave 110.8.0.0 is the network or subnet that the host 110.8.67.101 belongs in. The goal is to find the network/subnet that the host belongs to... To really understand the whole process I recommend that you watch the playlist of videos that I made for the CCNA at youtube/danscourses You need to understand that the computer sees the addresses in binary and that the router finds the network by ANDing the host address and the subnet mask together in binary. It helps to see it in binary...
danscourses 1 year ago 2
@sbrave
Try downloading Advance Subnet calculator. It will also help you realize the pattern better.
2007Russdog 1 month ago
great video, thank you so much....from Kosovo
davinqi 1 year ago
Dear teacher i have a question for you
would be possible that the computer is making music? the binary code is octaves like in musical scale.. can you help me please to understand the difference between the two?
thank you so much for your time
nanci
nancicunha 1 year ago