Project : Calculate Subnets
1. Your employer is opening a new location, and the IT director has assigned you the task of calculating the subnet numbers for the new LAN. You've determined that you need 50 subnets for the class B network beginning with the network ID 172.20.0.0. How many host bits will you need to use for network information in the new subnets?
2. After the sub netting is complete, how many unused subnets will be waiting on hold for future expansion, and how many possible hosts can each subnet contain?
3. What is the new subnet mask?
4. Complete the following table:
|
Subnet number
|
Extended network prefix
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Range of host addresses
|
Broadcast address
|
|
1
|
172.20.0.0
|
172.20.0.1 through 172.20.3.254
|
|
|
2
|
172.20.4.0
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through 172.20.7.254
|
|
|
3
|
|
172.20.8.1 through
|
172.20.11.255
|
|
4
|
|
|
|
|
5
|
|
|
|
|
---
|
|
|
|
|
50
|
|
|
|
5. What is the CIDR notation for this network?
6. What is the broadcast address of the subnet for the host at 172.20.6.139?
7. Is the host at 172.20.11.250 on the same subnet as the host at 172.20.12.3? how do you know?
Need answer for this question
Rework the scenario in Project 10-1 using your selected subnetting calculation method. Did you come up with the same numbers? What differences do you notice in the method presented in this book as compared with the method you selected?
5. Rework the scenario in Project 10-1 using your selected Did you come up with the same numbers? What differences do you notice in the method presented in this book as compared with the method you selected?