A company is planning to redesign its computer network so that each department h

Question

A company is planning to redesign its computer network so that each department has its own subnet. The following is the requirement for each subnet: Engineering..: 60 PCs Manufacturing: 50 PCs Sales.......: 50 PCs Marketing...: 25 PCs Admin......: 15 PCs Given the IP address space 192.100.23.0/24, use sub netting to create the 5 subnets that will meet the requirements listed above.. The network address of the Engineering subnet is: The network address of the Manufacturing subnet is: The network address of the Sales subnet is: The network address of the Marketing subnet is: The network address of the Admin subnet is: The first usable address in the Manufacturing subnet is: The broadcast address of the Engineering subnet is: The last usable address in the Sales subnet is: The broadcast address of the Marketing subnet is: The last usable address of the Admin subnet is:

Explanation / Answer

Basic principle used: The total number of IP address assigned to a subnet is always 2^n, out of which the first one is a Network address and the last one is a Broadcast address. So 2^n - 2 addresses are usable.

1. Network address of the Engineering subnet is: 192.100.23.0/26

2. Network address of the Manufacturing subnet is: 192.100.23.64/26

3. Network address of the Sales subnet is: 192.100.23.128/26

4. Network address of the Marketing subnet is: 192.100.23.192/27

5. Network address of the Admin subnet is: 192.100.23.224/27

6. First usable address of the Manufacturing subnet is: 192.100.23.65

7. Broadcast address of the Engineering subnet is: 192.100.23.63

8. Last usable address of the Sales subnet is: 192.100.23.190

9. Broadcast address of the Marketing subnet is: 192.100.23.223

10. Last usable address of the Admin subnet is: 192.100.23.254

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