Solution for Subnetting Exercise #2

1 Assume that you have been assigned the 200.35.1.0/24 network

block. Define an extended network prefix that allows the creation of

20 hosts on each subnet.

A minimum of 5 bits are required to define 20 hosts so the extended

network prefix is /27 (27 = 32 5).

2 What is the maximum number of hosts that can be assigned to each

subnet?

The maximum number of hosts on each subnet is 25  2, or 30.

3 What is the maximum number of subnets that can be defined?

The maximum number of subnets is 23, or 8.

4 Specify the subnets of 200.35.1.0/24 in binary format and dotted dec 

imal notation.

Subnet #0: 11001000.00100011.00000001. 000 00000 = 200.35.1.0/27

Subnet #1: 11001000.00100011.00000001. 001 00000 = 200.35.1.32/27

Subnet #2: 11001000.00100011.00000001. 010 00000 = 200.35.1.64/27

Subnet #3: 11001000.00100011.00000001. 011 00000 = 200.35.1.96/27

Subnet #4: 11001000.00100011.00000001. 100 00000 = 200.35.1.128/27

Subnet #5: 11001000.00100011.00000001. 101 00000 = 200.35.1.160/27

Subnet #6: 11001000.00100011.00000001. 110 00000 = 200.35.1.192/27

Subnet #7: 11001000.00100011.00000001. 111 00000 = 200.35.1.224/27

5 List the range of host addresses that can be assigned to Subnet #6

(200.35.1.192/27).

Subnet #6: 11001000.00100011.00000001. 110 00000 = 200.35.1.192/27

Host #1: 11001000.00100011.00000001.110 00001 = 200.35.1.193/27

Host #2: 11001000.00100011.00000001.110 00010 = 200.35.1.194/27

Host #3: 11001000.00100011.00000001.110 00011 = 200.35.1.195/27

:

Host #29: 11001000.00100011.00000001.110 11101 = 200.35.1.221/27

Host #30: 11001000.00100011.00000001.110 11110 = 200.35.1.222/27 

6 What is the broadcast address for subnet 200.35.1.192/27?

11001000.00100011.00000001.110 11111 = 200.35.1.223 

U N D E R S TA N D I N G   I P   A D D R E S S I N G

6 2