Subnetting 2.0

(Coco G) #1


my question is about subnetting,

for this exemple…
-For the following networks, provide the mask length to be used in order to meet the requirements.

#Network: Number of subnets: 57
Number of hosts per subnets: 800

#Network: Number of subnets: 6 Number of hosts per subnets: 27
is a litle bit different for the subnetting in the cours .
somebody can explanain

(Lazaros Agapides) #2

Hello Coco

First of all, you have to determine what the size of each subnet should be. Subnets can have sizes of 4, 8, 16, 32, 64, 128 etc and each of those corresponds to a subnet mask of,,, etc… So for a subnet that can accommodate 27 hosts, you can use a size 32. For 800, keep going by doubling the sizes until you get to a size larger than 800.

Next, you begin with the first subnet which is always the same as the initial network. For the second question, the first subnet would be with a subnet mask providing the 32 addresses, which is or a /27. So the first subnet is which provides 32 addresses. The next subnet is because it begins the next set of 32 addresses. The next subnet is and so on.

This was a very quick review of subnetting. You can find out a lot more at the following lesson and several subsequent lessons as well.

I hope this has been helpful!