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IP Subnetting

Here's a good paper on IP Subnetting on   Cisco's web site

For the following exercises, come up with the subnet (wire) address, broadcast for that subnet, the number of possible hosts, the first and last valid host address for that subnet.  Note that Answer are just the answers to these questions, Solution are the answers and how they were derived.

 

Example:

 

172.16.37.186/26

 

 

 

Subnet

172.16.37.128

 

Broadcast

172.16.37.191

 

Number of Hosts

62

 

First Host Address

172.16.37.129

 

Last Host Address

172.16.37.190

           

Questions:

1.            Answer            Solution

10.0.199.237/22

 

 

 

Subnet

 

 

Broadcast

 

 

Number of Hosts

 

 

First Host Address

 

 

Last Host Address

 

   

 

2.            Answer            Solution

172.16.37.186/27

 

 

 

Subnet

 

 

Broadcast

 

 

Number of Hosts

 

 

First Host Address

 

 

Last Host Address

 

 

 

 

3.            Answer            Solution

192.168.14.87/26

 

 

 

Subnet

 

 

Broadcast

 

 

Number of Hosts

 

 

First Host Address

 

 

Last Host Address

 

 

 

 

4.            Answer            Solution

10.212.0.1/14

 

 

 

Subnet

 

 

Broadcast

 

 

Number of Hosts

 

 

First Host Address

 

 

Last Host Address

 

 

 

 

5.            Answer            Solution

172.30.32.117/25

 

 

 

Subnet

 

 

Broadcast

 

 

Number of Hosts

 

 

First Host Address

 

 

Last Host Address

 

 

 

 

6.            Answer            Solution

172.16.197.45/23

 

 

 

Subnet

 

 

Broadcast

 

 

Number of Hosts

 

 

First Host Address

 

 

Last Host Address

 

 

 

 

7.            Answer            Solution

192.168.33.33/30

 

 

 

Subnet

 

 

Broadcast

 

 

Number of Hosts

 

 

First Host Address

 

 

Last Host Address

 

 

 

 

8.            Answer            Solution

10.191.43.101/20

 

 

 

Subnet

 

 

Broadcast

 

 

Number of Hosts

 

 

First Host Address

 

 

Last Host Address

 

 

 

 

9.            Answer            Solution

192.168.136.14/29

 

 

 

Subnet

 

 

Broadcast

 

 

Number of Hosts

 

 

First Host Address

 

 

Last Host Address

 

 

 

 

10.            Answer            Solution

192.168.136.14/28

 

 

 

Subnet

 

 

Broadcast

 

 

Number of Hosts

 

 

First Host Address

 

 

Last Host Address

 

 

 

 

11.            Answer            Solution

172.16.186.37/26

 

 

 

Subnet

 

 

Broadcast

 

 

Number of Hosts

 

 

First Host Address

 

 

Last Host Address

 

 

 

 

 

12.            Answer            Solution

172.26.233.233/23

 

 

 

Subnet

 

 

Broadcast

 

 

Number of Hosts

 

 

First Host Address

 

 

Last Host Address

 

   

 

 

13.            Answer            Solution

10.10.10.10/21

 

 

 

Subnet

 

 

Broadcast

 

 

Number of Hosts

 

 

First Host Address

 

 

Last Host Address

 

 

 

 

14.            Answer            Solution

172.27.198.4/19

 

 

 

Subnet

 

 

Broadcast

 

 

Number of Hosts

 

 

First Host Address

 

 

Last Host Address

 

 

 

 

15.            Answer            Solution

192.168.4.198/28

 

 

 

Subnet

 

 

Broadcast

 

 

Number of Hosts

 

 

First Host Address

 

 

Last Host Address

 

 

 

 

16.            Answer            Solution

172.16.16.186/20

 

 

 

Subnet

 

 

Broadcast

 

 

Number of Hosts

 

 

First Host Address

 

 

Last Host Address

 

 

 

 

17.            Answer            Solution

10.35.67.119/17

 

 

 

Subnet

 

 

Broadcast

 

 

Number of Hosts

 

 

First Host Address

 

 

Last Host Address

 

 

 

 

18.            Answer            Solution

10.7.13.141/20

 

 

 

Subnet

 

 

Broadcast

 

 

Number of Hosts

 

 

First Host Address

 

 

Last Host Address

 

 

 

 

 

19.            Answer            Solution

172.16.37.186/26

 

 

 

Subnet

 

 

Broadcast

 

 

Number of Hosts

 

 

First Host Address

 

 

Last Host Address