Help to answer this question

CSU

Hi

I get this question from my lecture and I con not answer it.

Please could you help to find the answer with explanation the answer.

Questions are :

1- Network address is 10.0.0.0 with its default network address. Create an optimal addressing scheme for 1000 subnets with maximum number of hosts. What will be the new subnet mask for this network? Provide network address, host rang and broadcast address for subnets 523 and 764.
2- Network address is 127.16.0.0 with default network address. Create an optimal addressing scheme for maximum subnets where each subnet must have 500 hosts. What is the new subnet mask? Provide network address, host rang and broadcast address for the first and the last subnet.
3- Host address is 200.0.50.69 / 27. to which network does the host belong? Provide the host range and broadcast address for this network.

higherho

CSU wrote: »

Hi

I get this question from my lecture and I con not answer it.

Please could you help to find the answer with explanation the answer.

Questions are :

1- Network address is 10.0.0.0 with its default network address. Create an optimal addressing scheme for 1000 subnets with maximum number of hosts. What will be the new subnet mask for this network? Provide network address, host rang and broadcast address for subnets 523 and 764.
2- Network address is 127.16.0.0 with default network address. Create an optimal addressing scheme for maximum subnets where each subnet must have 500 hosts. What is the new subnet mask? Provide network address, host rang and broadcast address for the first and the last subnet.
3- Host address is 200.0.50.69 / 27. to which network does the host belong? Provide the host range and broadcast address for this network.

Do you know how to subnet?

How to Subnet a Network : Learn-Networking.com

CodeBlox

CSU wrote: »

Hi

I get this question from my lecture and I con not answer it.

Please could you help to find the answer with explanation the answer.

Questions are :

1- Network address is 10.0.0.0 with its default network address. Create an optimal addressing scheme for 1000 subnets with maximum number of hosts. What will be the new subnet mask for this network? Provide network address, host rang and broadcast address for subnets 523 and 764.
2- Network address is 127.16.0.0 with default network address. Create an optimal addressing scheme for maximum subnets where each subnet must have 500 hosts. What is the new subnet mask? Provide network address, host rang and broadcast address for the first and the last subnet.
3- Host address is 200.0.50.69 / 27. to which network does the host belong? Provide the host range and broadcast address for this network.

For 1000 subnets you need 2^10 subnet bits for a prefix length of /18


10.0.0.0 /18

This gives you 2^14 - 2 host per subnet

some subnets would be:

10.0.0.0
10.0.64.0
10.0.128.0
10.0.192.0
10.1.0.0
10.1.64.0
10.1.128.0
10.1.192.0
...
10.255.128.0
10.255.192.0


EDITED: Thanks for noticing my mistake!!!

MosGuy

CodeBlox wrote: »

some subnets would be:

10.0.0.0
10.0.32.0
10.0.64.0

I believe a /18 would be an increment of 64 not 32 as you listed.

CodeBlox

whoops my bad! I was thinking /19 -_-

instant000

CSU wrote: »

Hi

I get this question from my lecture and I con not answer it.

Please could you help to find the answer with explanation the answer.

Can try, we have other posts on subnetting here. Make sure you look at those. Subnetting is a big part of CCNA.

Questions are :

1- Network address is 10.0.0.0 with its default network address. Create an optimal addressing scheme for 1000 subnets with maximum number of hosts. What will be the new subnet mask for this network? Provide network address, host rang and broadcast address for subnets 523 and 764.

How many bits do you need to make 1000 subnets?
2^8 = 256
2^9 = 512
2^10 = 1024

So, you'd need 10 bits of subnetting, added to the /8 you get for default class 8, gives you a /18 address

That's 255.255.192.0 for the mask.

block size is 64. Count from there.

2- Network address is 127.16.0.0 with default network address. Create an optimal addressing scheme for maximum subnets where each subnet must have 500 hosts. What is the new subnet mask? Provide network address, host rang and broadcast address for the first and the last subnet.

127.16 or 172.16?

127.16 isn't valid. 127 network is reserved.

So, can assume you mean 172.16, default mask of /16

need 500 hosts
2^9 = 512 -2 = 510
9 host bits

leaving you 7 bits of subnetting

/23 mask
mask: 255.255.254.0

block size: 2.0

Count from there.

3- Host address is 200.0.50.69 / 27. to which network does the host belong? Provide the host range and broadcast address for this network.

/27 network is 255.255.255.224 mask

block size is 32

count from there.

You might want to find some supplemental text on subnetting. It appears that you have not caught on to it.