Sub-netting Worksheet

ITT-116 Subnetting Worksheet

Use the following tables as references for the remainder of the document.

IP Address Classes

Class A

1-127

Leading bit pattern

0

Network.Host.Host.Host

Class B

128-191

Leading bit pattern

10

Network.Network.Host.Host

Class C

224-239

Leading bit pattern

110

Network.Network.Network.Host

Class D

224-230

Reserved for multicast

Class E

240-255

Reserved for experimental, used for research.

Private Addresses

Class A

10.0.0.0 – 10.255.255.255

Class B

172.16.0.0 – 172.31.255.255

Class C

192.168.0.0 – 192.168.255.255

APIPA

169.254.0.1 – 169.254.255.254

Binary to Decimal Conversion

128

64

32

16

8

4

2

1

Answers

0

0

0

1

1

0

1

1

0

0

1

1

1

0

1

1

1

1

1

1

0

0

0

0

0

0

1

1

0

0

0

1

1

0

0

0

1

0

0

0

1

0

1

0

1

0

1

0

0

1

1

0

1

1

0

1

1

0

0

1

1

0

0

1

1

1

0

1

0

1

1

0

Decimal to Binary Conversion

128

64

32

16

8

4

2

1

Problem

200

255

107

224

192

98

242

224

172

100

Address Classes

Address

Class

148.17.9.1

220.200.23.1

177.100.15.4

249.241.80.78

198.155.72.56

10.0.0.1

192.168.123.42

123.231.132.9

42.42.42.42

242.81.64.3

Network Identification

Highlight the Network Portion:

117.

89.

56.

90

33.

0.

0.

2

10.

252

1.

1

150.

15.

16.

3

192.

168.

123.

1

199.

155.

66.

56

242.

200.

23.

1

158.

200.

45.

62

218.

155.

230.

41

100.

25.

1.

1

Highlight the Host Portion

117.

89.

56.

90

33.

0.

0.

2

10.

252

1.

1

150.

15.

16.

3

192.

168.

123.

1

199.

155.

66.

56

242.

200.

23.

1

158.

200.

45.

62

218.

155.

230.

41

100.

25.

1.

1

Network Addressing

Write the network addresses for the provided IP address/subnet mask.

10.10.48.80 255.255.255.0

10.10.10.10 255.0.0.0

27.125.200.151 255.0.0.0

199.203.32.91 255.255.255.0

186.31.32.110 255.255.0.0

192.168.24.19 255.255.0.0

15.30.20.20 255.255.255.0

27.0.2.1 255.0.0.0

164.42.3.4 255.255.255.0

25.25.142.8 255.0.0.0

Host Addresses

Using the IP address and subnet mask shown, write the host address

10.10.48.80 255.255.255.0

10.10.10.10 255.0.0.0

27.125.200.151 255.0.0.0

199.203.32.91 255.255.255.0

186.31.32.110 255.255.0.0

192.168.24.19 255.255.0.0

15.30.20.20 255.255.255.0

27.0.2.1 255.0.0.0

164.42.3.4 255.255.255.0

25.25.142.8 255.0.0.0

Default Subnet Mask

Write the correct default subnet mask for each

10.10.48.80 255.255.255.0

10.10.10.10 255.0.0.0

27.125.200.151 255.0.0.0

199.203.32.91 255.255.255.0

186.31.32.110 255.255.0.0

192.168.24.19 255.255.0.0

15.30.20.20 255.255.255.0

27.0.2.1 255.0.0.0

164.42.3.4 255.255.255.0

25.25.142.8 255.0.0.0

Custom Subnet Masks

Fill in the blanks

Required Subnets

14

Required Hosts

14

Network Address

192.10.10.0

Address Class

Default Subnet Mask

Custom Subnet Mask

Total Number of Subnets

Total Number of Host Addresses

Number of Usable Addresses

Number of Bits Borrowed

What is the 10th Subnet Range?

What is the subnet number for the 2nd Subnet?

What is the broadcast address for the 12th Subnet?

What are the usable addresses for the 10th Subnet?

Required Subnets

1000

Required Hosts

60

Network Address

156.100.0.0

Address Class

Default Subnet Mask

Custom Subnet Mask

Total Number of Subnets

Total Number of Host Addresses

Number of Usable Addresses

Number of Bits Borrowed

What is the 10th Subnet Range?

What is the subnet number for the 2nd Subnet?

What is the broadcast address for the 12th Subnet?

What are the usable addresses for the 100th Subnet?

Required Subnets

6

Required Hosts

28

Network Address

182.86.7.0

Address Class

Default Subnet Mask

Custom Subnet Mask

Total Number of Subnets

Total Number of Host Addresses

Number of Usable Addresses

Number of Bits Borrowed

What is the 3rd Subnet Range?

What is the subnet number for the 2nd Subnet?

What is the broadcast address for the 1st Subnet?

What are the usable addresses for the 6th Subnet?

Required Subnets

2000

Required Hosts

15

Network Address

187.112.0.0

Address Class

Default Subnet Mask

Custom Subnet Mask

Total Number of Subnets

Total Number of Host Addresses

Number of Usable Addresses

Number of Bits Borrowed

What is the 100th Subnet Range?

What is the subnet number for the 200th Subnet?

What is the broadcast address for the 42nd Subnet?

What are the usable addresses for the 10th Subnet?

Required Subnets

412

Required Hosts

1000

Network Address

128.47.0.0

Address Class

Default Subnet Mask

Custom Subnet Mask

Total Number of Subnets

Total Number of Host Addresses

Number of Usable Addresses

Number of Bits Borrowed

What is the 10th Subnet Range?

What is the subnet number for the 42nd Subnet?

What is the broadcast address for the 300th Subnet?

What are the usable addresses for the 12th Subnet?

Create the subnetting table for each subnet required for your corporate network.

Required Subnets

Required Hosts

Network Address

Address Class

Default Subnet Mask

Custom Subnet Mask

Total Number of Subnets

Total Number of Host Addresses

Number of Usable Addresses

Number of Bits Borrowed

What are the usable addresses for the 1st Subnet?

What are the usable addresses for the 2nd Subnet?

What are the usable addresses for the 3rd Subnet?

What are the usable addresses for the 4th Subnet?

What are the usable addresses for the 5th Subnet?