1. You are a network engineer working at U of M. You were asked to subnet a clas

Question

1. You are a network engineer working at U of M. You were asked to subnet a class C network that is going to be used at the second floor labs in the EMS Building. Each lab has 28 computers and require 28 useable IP address. You were given a class C network 195.200.100.0/24.

a. What network Mask should you use to satisfy this requirement?

b. How many subnets did you have, and how many useable IP address in each subnet?

c. List the first 7 subnets, start and end of each subnet, and broadcast address for each subnet.

Explanation / Answer

195.200.100.0/27     

27 mask bits are taken to have the IP address in same range for 28 computers.

Network IP address: 195.200.100.0   => binary => 11000011.110010000.01100100.00000000

subnet mask: 255.255.255.0    => binary => 11111111.11111111.11111111.11100000    => 00011111 =>31

subnet ID : 195.200.100.0

broadcast address : 195.200.100.31

Host address range:      195.200.100.1    -     195.200.100.30

Maximum Subnets: 8

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