Answer to Question #319701 in Computer Networks for bawa

Question

An organization is granted a block of addresses with the beginning address 150.25.0.0/24. The organization needs to have 3 subblocks of addresses to use in its three subnets: one subblock of 11 addresses, one subblock of 40 addresses, and one subblock of 125 addresses. Design the network and plot it completely with respective subnets, IP range, Network IDs.

Answer 1

Solution:

А number of addresses in each subblock can be calculated using the formula:

$2^h-2$ must be greater than or equal to the required number.

1) Assign subblock1 150.25.0.16/28 with 14 assignable addresses 150.25.0.17 to 150.25.0.30.

2) Assign subblock2 150.25.0.64/26 with 62 assignable addresses 150.25.0.65 to 150.25.0.126.

2) Assign subblock3 150.25.0.128/25 with 126 assignable addresses 150.25.0.129 to 150.25.0.254.