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IP Addressing & Subnetting Handbook - Pravin Shetty...IP Addressing and Subnetting Workbook Version...

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11111110 1010100 10001111100 1011100101011100 101100011101001 1011110100011010 00001010010110010 1001010101100111 1111010101000101 1101001101010011 001010010101010 1010101000110010 010101001011000 110101100011010 11010100001011 001010100110 1001010010 10011000 0101 11010011 10000110 10010101 00011011 001 IP Addressing and Subnetting Workbook Version 1.1
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Page 1: IP Addressing & Subnetting Handbook - Pravin Shetty...IP Addressing and Subnetting Workbook Version 1.1 IP Address Classes Class A 1 – 127 (Network 127 is reserved for loopback and

11111110

101010010001111100

10111001010111001011000111010011011110100011010000010100101100101001010101100111111101010100010111010011010100110010100101010101010101000110010010101001011000110101100011010110101000010110010101001101001010010

100110000101

1101001110000110

1001010100011011

001IP Addressing

andSubnetting

WorkbookVersion 1.1

Page 2: IP Addressing & Subnetting Handbook - Pravin Shetty...IP Addressing and Subnetting Workbook Version 1.1 IP Address Classes Class A 1 – 127 (Network 127 is reserved for loopback and

IP Address Classes

Class A 1 – 127 (Network 127 is reserved for loopback and internal testing)Leading bit pattern 0 00000000.00000000.00000000.00000000

Class B 128 – 191 Leading bit pattern 10 10000000.00000000.00000000.00000000

Class C 192 – 223 Leading bit pattern 110 11000000.00000000.00000000.00000000

Class D 224 – 239 (Reserved for multicast)

Class E 240 – 255 (Reserved for experimental, used for research)

Private Address Space

Class A 10.0.0.0 to 10.255.255.255

Class B 172.16.0.0 to 172.31.255.255

Class C 192.168.0.0 to 192.168.255.255

Default Subnet Masks

Class A 255.0.0.0

Class B 255.255.0.0

Class C 255.255.255.0

Network . Host . Host . Host

Network . Network . Host . Host

Network . Network . Network . Host

Inside Cover

Produced by: Robb [email protected]

Frederick County Career & Technology CenterCisco Networking Academy

Frederick County Public SchoolsFrederick, Maryland, USA

Special Thanks to Melvin Baker and Jim Dorschfor taking the time to check this workbook for errors.

Page 3: IP Addressing & Subnetting Handbook - Pravin Shetty...IP Addressing and Subnetting Workbook Version 1.1 IP Address Classes Class A 1 – 127 (Network 127 is reserved for loopback and

Binary To Decimal Conversion

128 64 32 16 8 4 2 1 Answers Scratch Area1 0 0 1 0 0 1 0 146

0 1 1 1 0 1 1 1 119

1 1 1 1 1 1 1 1

1 1 0 0 0 1 0 1

1 1 1 1 0 1 1 0

0 0 0 1 0 0 1 1

1 0 0 0 0 0 0 1

0 0 1 1 0 0 0 1

0 1 1 1 1 0 0 0

1 1 1 1 0 0 0 0

0 0 1 1 1 0 1 1

0 0 0 0 0 1 1 1

00011011

10101010

01101111

11111000

00100000

01010101

00111110

00000011

11101101

11000000

128162

146

643216421

119

1

Page 4: IP Addressing & Subnetting Handbook - Pravin Shetty...IP Addressing and Subnetting Workbook Version 1.1 IP Address Classes Class A 1 – 127 (Network 127 is reserved for loopback and

Decimal To Binary Conversion

128 64 32 16 8 4 2 1 = 255 Scratch Area_________________________________________ 238

_________________________________________ 34

_________________________________________ 123

_________________________________________ 50

_________________________________________ 255

_________________________________________ 200

_________________________________________ 10

_________________________________________ 138

_________________________________________ 1

_________________________________________ 13

_________________________________________ 250

_________________________________________ 107

_________________________________________ 224

_________________________________________ 114

_________________________________________ 192

_________________________________________ 172

_________________________________________ 100

_________________________________________ 119

_________________________________________ 57

_________________________________________ 98

_________________________________________ 179

_________________________________________ 2

238-128110-6446

-3214-86

-42

-20

1 1 1 0 1 1 1 0 34-32

2-20

0 0 1 0 0 0 1 0

Use all 8 bits for each problem

2

Page 5: IP Addressing & Subnetting Handbook - Pravin Shetty...IP Addressing and Subnetting Workbook Version 1.1 IP Address Classes Class A 1 – 127 (Network 127 is reserved for loopback and

Address Class Identification

Address Class

10.250.1.1 _____

150.10.15.0 _____

192.14.2.0 _____

148.17.9.1 _____

193.42.1.1 _____

126.8.156.0 _____

220.200.23.1 _____

230.230.45.58 _____

177.100.18.4 _____

119.18.45.0 _____

249.240.80.78 _____

199.155.77.56 _____

117.89.56.45 _____

215.45.45.0 _____

199.200.15.0 _____

95.0.21.90 _____

33.0.0.0 _____

158.98.80.0 _____

219.21.56.0 _____

A

B

3

Page 6: IP Addressing & Subnetting Handbook - Pravin Shetty...IP Addressing and Subnetting Workbook Version 1.1 IP Address Classes Class A 1 – 127 (Network 127 is reserved for loopback and

Network & Host Identification

Circle the network portionof these addresses:

177.100.18.4

119.18.45.0

209.240.80.78

199.155.77.56

117.89.56.45

215.45.45.0

192.200.15.0

95.0.21.90

33.0.0.0

158.98.80.0

217.21.56.0

10.250.1.1

150.10.15.0

192.14.2.0

148.17.9.1

193.42.1.1

126.8.156.0

220.200.23.1

Circle the host portion ofthese addresses:

10.15.123.50

171.2.199.31

198.125.87.177

223.250.200.222

17.45.222.45

126.201.54.231

191.41.35.112

155.25.169.227

192.15.155.2

123.102.45.254

148.17.9.155

100.25.1.1

195.0.21.98

25.250.135.46

171.102.77.77

55.250.5.5

218.155.230.14

10.250.1.1

4

Page 7: IP Addressing & Subnetting Handbook - Pravin Shetty...IP Addressing and Subnetting Workbook Version 1.1 IP Address Classes Class A 1 – 127 (Network 127 is reserved for loopback and

Default Subnet Masks

Write the correct default subnet mask for each of the following addresses:

177.100.18.4 _____________________________

119.18.45.0 _____________________________

191.249.234.191 _____________________________

223.23.223.109 _____________________________

10.10.250.1 _____________________________

126.123.23.1 _____________________________

223.69.230.250 _____________________________

192.12.35.105 _____________________________

77.251.200.51 _____________________________

189.210.50.1 _____________________________

88.45.65.35 _____________________________

128.212.250.254 _____________________________

193.100.77.83 _____________________________

125.125.250.1 _____________________________

1.1.10.50 _____________________________

220.90.130.45 _____________________________

134.125.34.9 _____________________________

95.250.91.99 _____________________________

255 . 255 . 0 . 0

255 . 0 . 0 . 0

5

Page 8: IP Addressing & Subnetting Handbook - Pravin Shetty...IP Addressing and Subnetting Workbook Version 1.1 IP Address Classes Class A 1 – 127 (Network 127 is reserved for loopback and

ANDING WithDefault subnet masks

Every IP address must be accompanied by a subnet mask. By now you should be able to lookat an IP address and tell what class it is. Unfortunately your computer doesn’t think that way.For your computer to determine the network and subnet portion of an IP address it must“AND” the IP address with the subnet mask.

Default Subnet Masks:Class A 255.0.0.0Class B 255.255.0.0Class C 255.255.255.0

ANDING Equations:1 AND 1 = 11 AND 0 = 00 AND 1 = 00 AND 0 = 0

Sample:

What you see...

IP Address: 192 . 100 . 10 . 33

What you can figure out in your head...

Address Class: CNetwork Portion: 192 . 100 . 10 . 33Host Portion: 192 . 100 . 10 . 33

In order for you computer to get the same information it must AND the IP address withthe subnet mask in binary.

ANDING with the default subnet mask allows your computer to figure out the networkportion of the address.

1 1 0 0 0 0 0 0 . 1 1 0 0 1 0 0 . 0 0 0 0 1 0 1 0 . 0 0 1 0 0 0 0 11 1 1 1 1 1 1 1 . 1 1 1 1 1 1 1 . 1 1 1 1 1 1 1 1 . 0 0 0 0 0 0 0 01 1 0 0 0 0 0 0 . 1 1 0 0 1 0 0 . 0 0 0 0 1 0 1 0 . 0 0 0 0 0 0 0 0

(255 . 255 . 255 . 0)

(192 . 100 . 10 . 33)

(192 . 100 . 10 . 0)

Network Host

IP Address:Default Subnet Mask:

AND:

6

Page 9: IP Addressing & Subnetting Handbook - Pravin Shetty...IP Addressing and Subnetting Workbook Version 1.1 IP Address Classes Class A 1 – 127 (Network 127 is reserved for loopback and

ANDING WithCustom subnet masks

When you take a single network such as 192.100.10.0 and divide it into five smaller networks(192.100.10.16, 192.100.10.32, 192.100.10.48, 192.100.10.64, 192.100.10.80) the outsideworld still sees the network as 192.100.10.0, but the internal computers and routers see fivesmaller subnetworks. Each independent of the other. This can only be accomplished by usinga custom subnet mask. A custom subnet mask borrows bits from the host portion of theaddress to create a subnetwork address between the network and host portions of an IPaddress. In this example each range has 14 usable addresses in it. The computer must stillAND the IP address against the custom subnet mask to see what the network portion is andwhich subnetwork it belongs to.

IP Address: 192 . 100 . 10 . 0Custom Subnet Mask: 255.255.255.240

Address Ranges: 192.10.10.0 to 192.100.10.15 (Invalid Range)192.100.10.16 to 192.100.10.31 (1st Usable Range)192.100.10.32 to 192.100.10.47 (Range in the sample below)192.100.10.48 to 192.100.10.63192.100.10.64 to 192.100.10.79192.100.10.80 to 192.100.10.95192.100.10.96 to 192.100.10.111192.100.10.112 to 192.100.10.127192.100.10.128 to 192.100.10.143192.100.10.144 to 192.100.10.159192.100.10.160 to 192.100.10.175192.100.10.176 to 192.100.10.191192.100.10.192 to 192.100.10.207192.100.10.208 to 192.100.10.223192.100.10.224 to 192.100.10.239192.100.10.240 to 192.100.10.255 (Invalid Range)

In the next set of problems you will determine the necessary information to determine thecorrect subnet mask for a variety of IP addresses.

1 1 0 0 0 0 0 0 . 1 1 0 0 1 0 0 . 0 0 0 0 1 0 1 0 . 0 0 1 0 0 0 0 11 1 1 1 1 1 1 1 . 1 1 1 1 1 1 1 . 1 1 1 1 1 1 1 1 . 1 1 1 1 0 0 0 01 1 0 0 0 0 0 0 . 1 1 0 0 1 0 0 . 0 0 0 0 1 0 1 0 . 0 0 1 0 0 0 0 0

(255 . 255 . 255 . 240)

(192 . 100 . 10 . 33)

(192 . 100 . 10 . 32)

Four bits borrowed from the hostportion of the address for thecustom subnet mask.

The ANDING process of the four borrowed bitsshows which range of IP addresses thisparticular address will fall into.

SubNetwork HostNetwork

IP Address:Custom Subnet Mask:

AND:

7

Page 10: IP Addressing & Subnetting Handbook - Pravin Shetty...IP Addressing and Subnetting Workbook Version 1.1 IP Address Classes Class A 1 – 127 (Network 127 is reserved for loopback and

Custom Subnet Masks

Problem 1Number of needed usable subnets

Number of needed usable hostsNetwork Address

Address class

Default subnet mask

Custom subnet mask

Total number of subnets

Number of usable subnets

Total number of host addresses

Number of usable addresses

Number of bits borrowed

1414192.10.10.0

__________

_______________________________

_______________________________

___________________

___________________

___________________

___________________

___________________

192 . 10 . 10 . 0 0 0 0 0 0 0 0192 . 10 . 10 . 0 0 0 0 0 0 0 0192 . 10 . 10 . 0 0 0 0 0 0 0 0192 . 10 . 10 . 0 0 0 0 0 0 0 0192 . 10 . 10 . 0 0 0 0 0 0 0 0128 64 32 16 8 4 2 1 - Binary values

Number of Subnets - 2 4 8 16 32 64 128 256

Number of256 128 64 32 16 8 4 2 - Hosts

Show your work for Problem 1 in the space below.

Add the binary value numbers to the left of the line tocreate the custom subnet mask.

16-214

C

255 . 255 . 255 . 0

255 . 255 . 255 . 240

16

14

16

14

4

Observe the total number ofhosts.

Subtract 2 for the number ofusable hosts.

16-214

8

Subtract 2 for the total number ofsubnets to get the usable number of

subnets.

1286432

+16240

Page 11: IP Addressing & Subnetting Handbook - Pravin Shetty...IP Addressing and Subnetting Workbook Version 1.1 IP Address Classes Class A 1 – 127 (Network 127 is reserved for loopback and

9

Custom Subnet Masks

Problem 2Number of needed usable subnets

Number of needed usable hostsNetwork Address

Address class

Default subnet mask

Custom subnet mask

Total number of subnets

Number of usable subnets

Total number of host addresses

Number of usable addresses

Number of bits borrowed

100060165.100.0.0

__________

_______________________________

_______________________________

___________________

___________________

___________________

___________________

___________________

165 . 100 . 0 0 0 0 0 0 0 0 . 0 0 0 0 0 0 0 0165 . 100 . 0 0 0 0 0 0 0 0 . 0 0 0 0 0 0 0 0165 . 100 . 0 0 0 0 0 0 0 0 . 0 0 0 0 0 0 0 0165 . 100 . 0 0 0 0 0 0 0 0 . 0 0 0 0 0 0 0 0165 . 100 . 0 0 0 0 0 0 0 0 . 0 0 0 0 0 0 0 0128 64 32 16 8 4 2 1

Number of Subnets - 2 4 8 16 32 64 128 256.

. 256 128 64 32 16 8 4 2

Show your work for Problem 2 in the space below.

Add the binary value numbers to the left of the line tocreate the custom subnet mask.

1024-2

1,022

B

255 . 255 . 0 . 0

255 . 255 . 255 . 192

1,024

1,022

64

62

10

Observe the total number ofhosts.

Subtract 2 for the number ofusable hosts.

64-262

Subtract 2 for the total number ofsubnets to get the usable number ofsubnets.

128643216842

+1255

128 64 32 16 8 4 2 1 .....

512

Binary values -

Number ofHosts -

128+64192

102420484,0968,192

16,384

32,76865

,536

512

1,024

2,048

4,096

8,192

16,384

32,768

65,5

36

Page 12: IP Addressing & Subnetting Handbook - Pravin Shetty...IP Addressing and Subnetting Workbook Version 1.1 IP Address Classes Class A 1 – 127 (Network 127 is reserved for loopback and

Custom Subnet Masks

Problem 3Network Address

Address class

Default subnet mask

Custom subnet mask

Total number of subnets

Number of usable subnets

Total number of host addresses

Number of usable addresses

Number of bits borrowed

148.75.0.0 /26

__________

_______________________________

_______________________________

___________________

___________________

___________________

___________________

___________________

Show your work for Problem 3 in the space below.

B

255 . 255 . 0 . 0

255 . 255 . 255 . 192

1,024

1,022

64

62

10

/26 indicates the total number ofbits used for the network andsubnetwork portion of theaddress. All bits remaining belongto the host portion of the address.

148 . 75 . 0 0 0 0 0 0 0 0 . 0 0 0 0 0 0 0 0148 . 75 . 0 0 0 0 0 0 0 0 . 0 0 0 0 0 0 0 0148 . 75 . 0 0 0 0 0 0 0 0 . 0 0 0 0 0 0 0 0148 . 75 . 0 0 0 0 0 0 0 0 . 0 0 0 0 0 0 0 0148 . 75 . 0 0 0 0 0 0 0 0 . 0 0 0 0 0 0 0 0128 64 32 16 8 4 2 1

Number of Subnets - 2 4 8 16 32 64 128 256.

. 256 128 64 32 16 8 4 2

Add the binary value numbers to the left of the line tocreate the custom subnet mask.

1024-2

1,022

Observe the total number ofhosts.

Subtract 2 for the number ofusable hosts.

64-262

Subtract 2 for the total number ofsubnets to get the usable number ofsubnets.

128643216842

+1255

128 64 32 16 8 4 2 1 .....

512

Binary values -

Number ofHosts -

128+64192

102420484,0968,192

16,384

32,76865

,536

512

1,024

2,048

4,096

8,192

16,384

32,768

65,5

36

10

Page 13: IP Addressing & Subnetting Handbook - Pravin Shetty...IP Addressing and Subnetting Workbook Version 1.1 IP Address Classes Class A 1 – 127 (Network 127 is reserved for loopback and

Custom Subnet Masks

Problem 4Number of needed usable subnets

Number of needed usable hostsNetwork Address

Address class

Default subnet mask

Custom subnet mask

Total number of subnets

Number of usable subnets

Total number of host addresses

Number of usable addresses

Number of bits borrowed

630210.100.56.0

_______

_______________________________

_______________________________

___________________

___________________

___________________

___________________

___________________

210 . 100 . 56 . 0 0 0 0 0 0 0 0210 . 100 . 56 . 0 0 0 0 0 0 0 0210 . 100 . 56 . 0 0 0 0 0 0 0 0210 . 100 . 56 . 0 0 0 0 0 0 0 0210 . 100 . 56 . 0 0 0 0 0 0 0 0128 64 32 16 8 4 2 1 - Binary values

Number of Subnets - 2 4 8 16 32 64 128 256

Number of256 128 64 32 16 8 4 2 - Hosts

Show your work for Problem 4 in the space below.

11

Page 14: IP Addressing & Subnetting Handbook - Pravin Shetty...IP Addressing and Subnetting Workbook Version 1.1 IP Address Classes Class A 1 – 127 (Network 127 is reserved for loopback and

12

Custom Subnet Masks

Problem 5Number of needed usable subnets

Number of needed usable hostsNetwork Address

Address class

Default subnet mask

Custom subnet mask

Total number of subnets

Number of usable subnets

Total number of host addresses

Number of usable addresses

Number of bits borrowed

630195.85.8.0

_______

_______________________________

_______________________________

___________________

___________________

___________________

___________________

___________________

195 . 85 . 8 . 0 0 0 0 0 0 0 0 195 . 85 . 8 . 0 0 0 0 0 0 0 0 195 . 85 . 8 . 0 0 0 0 0 0 0 0 195 . 85 . 8 . 0 0 0 0 0 0 0 0 195 . 85 . 8 . 0 0 0 0 0 0 0 0128 64 32 16 8 4 2 1 - Binary values

Number of Subnets - 2 4 8 16 32 64 128 256

Number of256 128 64 32 16 8 4 2 - Hosts

Show your work for Problem 5 in the space below.

Page 15: IP Addressing & Subnetting Handbook - Pravin Shetty...IP Addressing and Subnetting Workbook Version 1.1 IP Address Classes Class A 1 – 127 (Network 127 is reserved for loopback and

13

Custom Subnet Masks

Problem 6Number of needed usable subnets

Number of needed usable hostsNetwork Address

Address class

Default subnet mask

Custom subnet mask

Total number of subnets

Number of usable subnets

Total number of host addresses

Number of usable addresses

Number of bits borrowed

126131,070118.0.0.0

_______

_______________________________

_______________________________

___________________

___________________

___________________

___________________

___________________

Show your work for Problem 6 in the space below.

118. 0 0 0 0 0 0 0 0 . 0 0 0 0 0 0 0 0 . 0 0 0 0 0 0 0 0118. 0 0 0 0 0 0 0 0 . 0 0 0 0 0 0 0 0 . 0 0 0 0 0 0 0 0118. 0 0 0 0 0 0 0 0 . 0 0 0 0 0 0 0 0 . 0 0 0 0 0 0 0 0118. 0 0 0 0 0 0 0 0 . 0 0 0 0 0 0 0 0 . 0 0 0 0 0 0 0 0118. 0 0 0 0 0 0 0 0 . 0 0 0 0 0 0 0 0 . 0 0 0 0 0 0 0 0

Number of Subnets - 2 4 8 16 32 64 128 256 .

. 256 128 64 32 16 8 4 2

Binary values -128 64 32 16 8 4 2 1 . . . . . 128 64 32 16 8 4 2 1 . . . . . 128 64 32 16 8 4 2 1

Number ofHosts -

512

1,0242,0484,0968,192

16,38432,76865,536

131,072262,144524,2881,048,5762,097,1524,194,304.

512

1,024

2,048

4,096

8,192

16,384

32,768

65,536

131,072

262,144

524,288

1,048,576

2,097,152

4,194,304

Page 16: IP Addressing & Subnetting Handbook - Pravin Shetty...IP Addressing and Subnetting Workbook Version 1.1 IP Address Classes Class A 1 – 127 (Network 127 is reserved for loopback and

14

Custom Subnet Masks

Problem 7Number of needed usable subnets

Number of needed usable hostsNetwork Address

Address class

Default subnet mask

Custom subnet mask

Total number of subnets

Number of usable subnets

Total number of host addresses

Number of usable addresses

Number of bits borrowed

200015178.100.0.0

__________

_______________________________

_______________________________

___________________

___________________

___________________

___________________

___________________

Show your work for Problem 7 in the space below.

178 . 100 . 0 0 0 0 0 0 0 0 . 0 0 0 0 0 0 0 0178 . 100 . 0 0 0 0 0 0 0 0 . 0 0 0 0 0 0 0 0178 . 100 . 0 0 0 0 0 0 0 0 . 0 0 0 0 0 0 0 0178 . 100 . 0 0 0 0 0 0 0 0 . 0 0 0 0 0 0 0 0178 . 100 . 0 0 0 0 0 0 0 0 . 0 0 0 0 0 0 0 0128 64 32 16 8 4 2 1

Number of Subnets - 2 4 8 16 32 64 128 256.

. 256 128 64 32 16 8 4 2

128 64 32 16 8 4 2 1 .....

512

Binary values -

Number ofHosts -

102420484,0968,192

16,384

32,76865

,536

512

1,024

2,048

4,096

8,192

16,384

32,768

65,5

36

Page 17: IP Addressing & Subnetting Handbook - Pravin Shetty...IP Addressing and Subnetting Workbook Version 1.1 IP Address Classes Class A 1 – 127 (Network 127 is reserved for loopback and

15

Custom Subnet Masks

Problem 8Number of needed usable subnets

Number of needed usable hostsNetwork Address

Address class

Default subnet mask

Custom subnet mask

Total number of subnets

Number of usable subnets

Total number of host addresses

Number of usable addresses

Number of bits borrowed

145200.175.14.0

_______

_______________________________

_______________________________

___________________

___________________

___________________

___________________

___________________

Show your work for Problem 8 in the space below.

Page 18: IP Addressing & Subnetting Handbook - Pravin Shetty...IP Addressing and Subnetting Workbook Version 1.1 IP Address Classes Class A 1 – 127 (Network 127 is reserved for loopback and

Custom Subnet Masks

Problem 9Number of needed usable subnets

Number of needed usable hostsNetwork Address

Address class

Default subnet mask

Custom subnet mask

Total number of subnets

Number of usable subnets

Total number of host addresses

Number of usable addresses

Number of bits borrowed

601,000128.77.0.0

_______

_______________________________

_______________________________

___________________

___________________

___________________

___________________

___________________

Show your work for Problem 9 in the space below.

16

Page 19: IP Addressing & Subnetting Handbook - Pravin Shetty...IP Addressing and Subnetting Workbook Version 1.1 IP Address Classes Class A 1 – 127 (Network 127 is reserved for loopback and

Custom Subnet Masks

Problem 10 Number of needed usable hosts

Network Address

Address class

Default subnet mask

Custom subnet mask

Total number of subnets

Number of usable subnets

Total number of host addresses

Number of usable addresses

Number of bits borrowed

60198.100.10.0

_______

_______________________________

_______________________________

___________________

___________________

___________________

___________________

___________________

Show your work for Problem 10 in the space below.

17

Page 20: IP Addressing & Subnetting Handbook - Pravin Shetty...IP Addressing and Subnetting Workbook Version 1.1 IP Address Classes Class A 1 – 127 (Network 127 is reserved for loopback and

Custom Subnet Masks

Problem 11Number of needed usable subnets

Network Address

Address class

Default subnet mask

Custom subnet mask

Total number of subnets

Number of usable subnets

Total number of host addresses

Number of usable addresses

Number of bits borrowed

250101.0.0.0

_______

_______________________________

_______________________________

___________________

___________________

___________________

___________________

___________________

Show your work for Problem 11 in the space below.

18

Page 21: IP Addressing & Subnetting Handbook - Pravin Shetty...IP Addressing and Subnetting Workbook Version 1.1 IP Address Classes Class A 1 – 127 (Network 127 is reserved for loopback and

Custom Subnet Masks

Problem 12Number of needed usable subnets

Network Address

Address class

Default subnet mask

Custom subnet mask

Total number of subnets

Number of usable subnets

Total number of host addresses

Number of usable addresses

Number of bits borrowed

5218.35.50.0

_______

_______________________________

_______________________________

___________________

___________________

___________________

___________________

___________________

Show your work for Problem 12 in the space below.

19

Page 22: IP Addressing & Subnetting Handbook - Pravin Shetty...IP Addressing and Subnetting Workbook Version 1.1 IP Address Classes Class A 1 – 127 (Network 127 is reserved for loopback and

Custom Subnet Masks

Problem 13Number of needed usable hosts

Network Address

Address class

Default subnet mask

Custom subnet mask

Total number of subnets

Number of usable subnets

Total number of host addresses

Number of usable addresses

Number of bits borrowed

25218.35.50.0

_______

_______________________________

_______________________________

___________________

___________________

___________________

___________________

___________________

Show your work for Problem 13 in the space below.

20

Page 23: IP Addressing & Subnetting Handbook - Pravin Shetty...IP Addressing and Subnetting Workbook Version 1.1 IP Address Classes Class A 1 – 127 (Network 127 is reserved for loopback and

Custom Subnet Masks

Problem 14Number of needed usable subnets

Network Address

Address class

Default subnet mask

Custom subnet mask

Total number of subnets

Number of usable subnets

Total number of host addresses

Number of usable addresses

Number of bits borrowed

10172.59.0.0

_______

_______________________________

_______________________________

___________________

___________________

___________________

___________________

___________________

Show your work for Problem 14 in the space below.

21

Page 24: IP Addressing & Subnetting Handbook - Pravin Shetty...IP Addressing and Subnetting Workbook Version 1.1 IP Address Classes Class A 1 – 127 (Network 127 is reserved for loopback and

Custom Subnet Masks

Problem 15Number of needed usable hosts

Network Address

Address class

Default subnet mask

Custom subnet mask

Total number of subnets

Number of usable subnets

Total number of host addresses

Number of usable addresses

Number of bits borrowed

50172.59.0.0

_______

_______________________________

_______________________________

___________________

___________________

___________________

___________________

___________________

Show your work for Problem 15 in the space below.

22

Page 25: IP Addressing & Subnetting Handbook - Pravin Shetty...IP Addressing and Subnetting Workbook Version 1.1 IP Address Classes Class A 1 – 127 (Network 127 is reserved for loopback and

Custom Subnet Masks

Problem 16Number of needed usable hosts

Network Address

Address class

Default subnet mask

Custom subnet mask

Total number of subnets

Number of usable subnets

Total number of host addresses

Number of usable addresses

Number of bits borrowed

2923.0.0.0

_______

_______________________________

_______________________________

___________________

___________________

___________________

___________________

___________________

Show your work for Problem 16 in the space below.

23

Page 26: IP Addressing & Subnetting Handbook - Pravin Shetty...IP Addressing and Subnetting Workbook Version 1.1 IP Address Classes Class A 1 – 127 (Network 127 is reserved for loopback and

_______________________________________________

________________________

________________________

______________________________________

192.10.10.48 to 192.10.10.63

192 . 10 . 10 . 112

192 . 10 . 10 . 207

192.10.10.129 to 192.10.10.142

24

Subnetting

Problem 1Number of needed usable subnets

Number of needed usable hostsNetwork Address

Address class

Default subnet mask

Custom subnet mask

Total number of subnets

Number of usable subnets

Total number of host addresses

Number of usable addresses

Number of bits borrowed

1414192.10.10.0

__________

_______________________________

_______________________________

___________________

___________________

___________________

___________________

___________________

C

255 . 255 . 255 . 0

255 . 255 . 255 . 240

16

14

16

14

4

What is the 3rd usablesubnet range?

What is the subnet numberfor the 7th usable subnet?

What is the subnetbroadcast address for

the 12th usable subnet?

What are the assignableaddresses for the 8th

usable subnet?

Page 27: IP Addressing & Subnetting Handbook - Pravin Shetty...IP Addressing and Subnetting Workbook Version 1.1 IP Address Classes Class A 1 – 127 (Network 127 is reserved for loopback and

Show your work for Problem 1 in the space below.

192.10.10.0 to 192.10.10.15192.10.10.16 to 192.10.10.31192.10.10.32 to 192.10.10.47192.10.10.48 to 192.10.10.63192.10.10.64 to 192.10.10.79192.10.10.80 to 192.10.10.95192.10.10.96 to 192.10.10.111192.10.10.112 to 192.10.10.127192.10.10.128 to 192.10.10.143192.10.10.144 to 192.10.10.159192.10.10.160 to 192.10.10.175192.10.10.176 to 192.10.10.191192.10.10.192 to 192.10.10.207192.10.10.208 to 192.10.10.223192.10.10.224 to 192.10.10.239192.10.10.240 to 192.10.10.255

192. 10 . 10 . 0 0 0 0 0 0 0 0 192. 10 . 10 . 0 0 0 0 0 0 0 0 192. 10 . 10 . 0 0 0 0 0 0 0 0 192. 10 . 10 . 0 0 0 0 0 0 0 0 192. 10 . 10 . 0 0 0 0 0 0 0 0128 64 32 16 8 4 2 1 - Binary values

Number of Subnets - 2 4 8 16 2 4 8 16 2 4 8 16 2 4 8 16 2 4 8 16 32 64 128 256

Number of256 128 64 32 16 8 4 2 - Hosts

16-214

16-214

1286432

+16240

The binary value of the last bit borrowed is the range. In thisproblem the range is 16.

The first and last range of addresses are not usable.

The first usable range of addresses is: 192.10.10.16 to192.10.10.31.

Custom subnetmask

Usable hostsUsable subnets

The first address in each subnet range is the subnetnumber.

The last address in each subnet range is the subnetbroadcast address.

25

0101010101010101

11001100110011

111100001111

11111111

(Invalid range)

(Invalid range)

Page 28: IP Addressing & Subnetting Handbook - Pravin Shetty...IP Addressing and Subnetting Workbook Version 1.1 IP Address Classes Class A 1 – 127 (Network 127 is reserved for loopback and

_______________________________________________

________________________

________________________

______________________________________

165.100.3.128 to 165.100.3.191

165 . 100 . 1 . 64

165 . 100 . 1 . 127

165.100.2.1 to 165.100.0.62

26

Subnetting

Problem 2Number of needed usable subnets

Number of needed usable hostsNetwork Address

Address class

Default subnet mask

Custom subnet mask

Total number of subnets

Number of usable subnets

Total number of host addresses

Number of usable addresses

Number of bits borrowed

100060165.100.0.0

__________

_______________________________

_______________________________

___________________

___________________

___________________

___________________

___________________

B

255 . 255 . 0 . 0

255 . 255 . 255 . 192

1,024

1,022

64

62

10

What is the 14th usablesubnet range?

What is the subnet numberfor the 5th usable subnet?

What is the subnetbroadcast address forthe 5th usable subnet?

What are the assignableaddresses for the 8th

usable subnet?

Page 29: IP Addressing & Subnetting Handbook - Pravin Shetty...IP Addressing and Subnetting Workbook Version 1.1 IP Address Classes Class A 1 – 127 (Network 127 is reserved for loopback and

165

. 10

0 . 0

0

0

0 0

0

0

0 .

0 0

0

0

0 0

0

016

5 .

100

. 0

0 0

0

0

0 0

0

. 0

0

0 0

0

0

0 0

165

. 10

0 . 0

0

0

0 0

0

0

0 .

0 0

0

0

0 0

0

016

5 .

100

. 0

0 0

0

0

0 0

0

. 0

0

0 0

0

0

0 0

165

. 10

0 . 0

0

0

0 0

0

0

0 .

0 0

0

0

0 0

0

016

5.1

00.0

.0to

1

65.1

00.0

.63

165

.100

.0.6

4to

1

65.1

00.0

.12

716

5.1

00.0

.12

8to

1

65.1

00.0

.191

165

.100.0

.192

to

165

.100

.0.2

55

165

.100.1

.0to

1

65.1

00.1

.63

165

.100

.1.6

4to

1

65.1

00.1

.12

716

5.1

00.1

.12

8to

1

65.1

00.1

.191

165

.100.1

.192

to

165

.100

.1.2

55

165

.100.2

.0to

1

65.1

00.0

.63

165

.100

.2.6

4to

1

65.1

00.0

.12

716

5.1

00.2

.12

8to

1

65.1

00.0

.191

165

.100.2

.192

to

165

.100

.0.2

55

165

.100.3

.0to

1

65.1

00.3

.63

165

.100

.3.6

4to

1

65.1

00.3

.12

716

5.1

00.3

.12

8to

1

65.1

00.3

.191

165

.100.3

.192

to

165

.100

.3.2

55

Dow

n to

165

.100

.25

5.1

28

to

16

5.1

00.2

55

.191

165

.100

.25

5.1

92 t

o 1

65.1

00.2

55

.25

5

The

bina

ry v

alue

of t

he la

st b

it bo

rrow

ed is

the

rang

e. In

this

pro

blem

the

rang

e is

64.

The

first

and

last

ran

ge o

f add

ress

es a

re n

otus

able

.

The

first

usa

ble

rang

e of

add

ress

es is

:16

5.10

0.0.

64 to

165

.100

.0.1

27

The

first

add

ress

in e

ach

subn

et r

ange

is th

esu

bnet

num

ber.

The

last

add

ress

in e

ach

subn

et r

ange

is th

esu

bnet

bro

adca

st a

ddre

ss.

27

64 -2 6210

24 -2

1,0

22

Usa

ble

host

s12

864 32 16 8 4 2 +1

25

5

128

+64

192

Usa

ble

subn

ets

Cus

tom

subn

et m

ask

Show your work for Problem 2 in the space below.

128

64

32 16

8

4

2

1

Num

ber

of S

ubne

ts

-

2

4

8

16 3

2 6

4 1

28

25

6 .

. 25

6 12

8 6

4 32

16

8

4

2

128

64

32

16

8

4

2

1

.... .

512

Bin

ary

valu

es -

Num

ber

ofH

osts

-

102420484,0968,192

16,384

32,76865,536

512

1,024

2,048

4,096

8,192

16,384

32,768

65,536

0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1

1 1 0 0 1 1 0 0 1 1 0 0 1 1

1 1 1 1 0 0 0 0 1 1 1 1

1 1 1 1 1 1 1 1

(Inv

alid

ran

ge)

. . . . . . . . . . . . .

(Inv

alid

ran

ge)

Page 30: IP Addressing & Subnetting Handbook - Pravin Shetty...IP Addressing and Subnetting Workbook Version 1.1 IP Address Classes Class A 1 – 127 (Network 127 is reserved for loopback and

_______________________________________________

________________________

________________________

______________________________________

28

Subnetting

Problem 3Number of needed usable subnets

Network Address

Address class

Default subnet mask

Custom subnet mask

Total number of subnets

Number of usable subnets

Total number of host addresses

Number of usable addresses

Number of bits borrowed

1195.223.50.0

__________

_______________________________

_______________________________

___________________

___________________

___________________

___________________

___________________

What is the 2nd usablesubnet range?

What is the subnet numberfor the 1st usable subnet?

What is the subnetbroadcast address forthe 1st usable subnet?

What are the assignableaddresses for the 2nd

usable subnet?

Page 31: IP Addressing & Subnetting Handbook - Pravin Shetty...IP Addressing and Subnetting Workbook Version 1.1 IP Address Classes Class A 1 – 127 (Network 127 is reserved for loopback and

Show your work for Problem 3 in the space below.

29

128 64 32 16 8 4 2 1 - Binary values

Number of Subnets - 2 4 8 16 2 4 8 16 2 4 8 16 2 4 8 16 2 4 8 16 32 64 128 256

Number of256 128 64 32 16 8 4 2 - Hosts

195. 223 . 50 . 0 0 0 0 0 0 0 0 195. 223 . 50 . 0 0 0 0 0 0 0 0 195. 223 . 50 . 0 0 0 0 0 0 0 0 195. 223 . 50 . 0 0 0 0 0 0 0 0 195. 223 . 50 . 0 0 0 0 0 0 0 0

Page 32: IP Addressing & Subnetting Handbook - Pravin Shetty...IP Addressing and Subnetting Workbook Version 1.1 IP Address Classes Class A 1 – 127 (Network 127 is reserved for loopback and

_______________________________________________

________________________

________________________

______________________________________

30

Subnetting

Problem 4Number of needed usable subnets

Network Address

Address class

Default subnet mask

Custom subnet mask

Total number of subnets

Number of usable subnets

Total number of host addresses

Number of usable addresses

Number of bits borrowed

750190.35.0.0

__________

_______________________________

_______________________________

___________________

___________________

___________________

___________________

___________________

What is the 14th usablesubnet range?

What is the subnet numberfor the 12th usable

subnet?

What is the subnetbroadcast address forthe 9th usable subnet?

What are the assignableaddresses for the 5th

usable subnet?

Page 33: IP Addressing & Subnetting Handbook - Pravin Shetty...IP Addressing and Subnetting Workbook Version 1.1 IP Address Classes Class A 1 – 127 (Network 127 is reserved for loopback and

Show your work for Problem 4 in the space below.

31

Page 34: IP Addressing & Subnetting Handbook - Pravin Shetty...IP Addressing and Subnetting Workbook Version 1.1 IP Address Classes Class A 1 – 127 (Network 127 is reserved for loopback and

_______________________________________________

________________________

________________________

______________________________________

32

Subnetting

Problem 5Number of needed usable hosts

Network Address

Address class

Default subnet mask

Custom subnet mask

Total number of subnets

Number of usable subnets

Total number of host addresses

Number of usable addresses

Number of bits borrowed

6126.0.0.0

__________

_______________________________

_______________________________

___________________

___________________

___________________

___________________

___________________

What is the 1st usablesubnet range?

What is the subnet numberfor the 4th usable subnet?

What is the subnetbroadcast address forthe 6th usable subnet?

What are the assignableaddresses for the 9th

usable subnet?

Page 35: IP Addressing & Subnetting Handbook - Pravin Shetty...IP Addressing and Subnetting Workbook Version 1.1 IP Address Classes Class A 1 – 127 (Network 127 is reserved for loopback and

Show your work for Problem 5 in the space below.

33

Page 36: IP Addressing & Subnetting Handbook - Pravin Shetty...IP Addressing and Subnetting Workbook Version 1.1 IP Address Classes Class A 1 – 127 (Network 127 is reserved for loopback and

_______________________________________________

________________________

________________________

______________________________________

34

Subnetting

Problem 6Number of needed usable subnets

Network Address

Address class

Default subnet mask

Custom subnet mask

Total number of subnets

Number of usable subnets

Total number of host addresses

Number of usable addresses

Number of bits borrowed

10192.70.10.0

__________

_______________________________

_______________________________

___________________

___________________

___________________

___________________

___________________

What is the 8th usablesubnet range?

What is the subnet numberfor the 3rd usable subnet?

What is the subnetbroadcast address for

the 11th usable subnet?

What are the assignableaddresses for the 9th

usable subnet?

Page 37: IP Addressing & Subnetting Handbook - Pravin Shetty...IP Addressing and Subnetting Workbook Version 1.1 IP Address Classes Class A 1 – 127 (Network 127 is reserved for loopback and

Show your work for Problem 6 in the space below.

35

Page 38: IP Addressing & Subnetting Handbook - Pravin Shetty...IP Addressing and Subnetting Workbook Version 1.1 IP Address Classes Class A 1 – 127 (Network 127 is reserved for loopback and

_______________________________________________

________________________

________________________

_____________________________________

36

Subnetting

Problem 7Network Address

Address class

Default subnet mask

Custom subnet mask

Total number of subnets

Number of usable subnets

Total number of host addresses

Number of usable addresses

Number of bits borrowed

10.0.0.0 /16

__________

_______________________________

_______________________________

___________________

___________________

___________________

___________________

___________________

What is the 10th usablesubnet range?

What is the subnet numberfor the 5th usable subnet?

What is the subnetbroadcast address forthe 1st usable subnet?

What are the assignableaddresses for the 8th

usable subnet?

Page 39: IP Addressing & Subnetting Handbook - Pravin Shetty...IP Addressing and Subnetting Workbook Version 1.1 IP Address Classes Class A 1 – 127 (Network 127 is reserved for loopback and

Show your work for Problem 7 in the space below.

37

Page 40: IP Addressing & Subnetting Handbook - Pravin Shetty...IP Addressing and Subnetting Workbook Version 1.1 IP Address Classes Class A 1 – 127 (Network 127 is reserved for loopback and

_______________________________________________

________________________

________________________

______________________________________

38

Subnetting

Problem 8Number of needed usable subnets

Network Address

Address class

Default subnet mask

Custom subnet mask

Total number of subnets

Number of usable subnets

Total number of host addresses

Number of usable addresses

Number of bits borrowed

4172.50.0.0

__________

_______________________________

_______________________________

___________________

___________________

___________________

___________________

___________________

What is the 3rd usablesubnet range?

What is the subnet numberfor the 4th usable subnet?

What is the subnetbroadcast address forthe 5th usable subnet?

What are the assignableaddresses for the 2nd

usable subnet?

Page 41: IP Addressing & Subnetting Handbook - Pravin Shetty...IP Addressing and Subnetting Workbook Version 1.1 IP Address Classes Class A 1 – 127 (Network 127 is reserved for loopback and

Show your work for Problem 8 in the space below.

39

Page 42: IP Addressing & Subnetting Handbook - Pravin Shetty...IP Addressing and Subnetting Workbook Version 1.1 IP Address Classes Class A 1 – 127 (Network 127 is reserved for loopback and

_______________________________________________

________________________

________________________

______________________________________

40

Subnetting

Problem 9Number of needed usable hosts

Network Address

Address class

Default subnet mask

Custom subnet mask

Total number of subnets

Number of usable subnets

Total number of host addresses

Number of usable addresses

Number of bits borrowed

28172.50.0.0

__________

_______________________________

_______________________________

___________________

___________________

___________________

___________________

___________________

What is the 1st usablesubnet range?

What is the subnet numberfor the 9th usable subnet?

What is the subnetbroadcast address for

the 3rd usable subnet?

What are the assignableaddresses for the 5th

usable subnet?

Page 43: IP Addressing & Subnetting Handbook - Pravin Shetty...IP Addressing and Subnetting Workbook Version 1.1 IP Address Classes Class A 1 – 127 (Network 127 is reserved for loopback and

Show your work for Problem 9 in the space below.

41

Page 44: IP Addressing & Subnetting Handbook - Pravin Shetty...IP Addressing and Subnetting Workbook Version 1.1 IP Address Classes Class A 1 – 127 (Network 127 is reserved for loopback and

_______________________________________________

________________________

________________________

______________________________________

42

Subnetting

Problem 10Number of needed usable subnets

Network Address

Address class

Default subnet mask

Custom subnet mask

Total number of subnets

Number of usable subnets

Total number of host addresses

Number of usable addresses

Number of bits borrowed

45220.100.100.0

__________

_______________________________

_______________________________

___________________

___________________

___________________

___________________

___________________

What is the 4th usablesubnet range?

What is the subnet numberfor the 3rd usable subnet?

What is the subnetbroadcast address for

the 12th usable subnet?

What are the assignableaddresses for the 11th

usable subnet?

Page 45: IP Addressing & Subnetting Handbook - Pravin Shetty...IP Addressing and Subnetting Workbook Version 1.1 IP Address Classes Class A 1 – 127 (Network 127 is reserved for loopback and

Show your work for Problem 10 in the space below.

43

Page 46: IP Addressing & Subnetting Handbook - Pravin Shetty...IP Addressing and Subnetting Workbook Version 1.1 IP Address Classes Class A 1 – 127 (Network 127 is reserved for loopback and

_______________________________________________

________________________

________________________

______________________________________

44

Subnetting

Problem 11Number of needed usable hosts

Network Address

Address class

Default subnet mask

Custom subnet mask

Total number of subnets

Number of usable subnets

Total number of host addresses

Number of usable addresses

Number of bits borrowed

8,000135.70.0.0

__________

_______________________________

_______________________________

___________________

___________________

___________________

___________________

___________________

What is the 5th usablesubnet range?

What is the subnet numberfor the 6th usable subnet?

What is the subnetbroadcast address for

the 2nd usable subnet?

What are the assignableaddresses for the 4th

usable subnet?

Page 47: IP Addressing & Subnetting Handbook - Pravin Shetty...IP Addressing and Subnetting Workbook Version 1.1 IP Address Classes Class A 1 – 127 (Network 127 is reserved for loopback and

Show your work for Problem 11 in the space below.

45

Page 48: IP Addressing & Subnetting Handbook - Pravin Shetty...IP Addressing and Subnetting Workbook Version 1.1 IP Address Classes Class A 1 – 127 (Network 127 is reserved for loopback and

46

Subnetting

Problem 12Number of needed usable hosts

Network Address

Address class

Default subnet mask

Custom subnet mask

Total number of subnets

Number of usable subnets

Total number of host addresses

Number of usable addresses

Number of bits borrowed

45198.125.50.0

__________

_______________________________

_______________________________

___________________

___________________

___________________

___________________

___________________

What is the 1st usablesubnet range?

What is the subnet numberfor the 1st usable subnet?

What is the subnetbroadcast address for

the 2nd usable subnet?

What are the assignableaddresses for the 2nd

usable subnet?

_______________________________________________

________________________

________________________

______________________________________

Page 49: IP Addressing & Subnetting Handbook - Pravin Shetty...IP Addressing and Subnetting Workbook Version 1.1 IP Address Classes Class A 1 – 127 (Network 127 is reserved for loopback and

Show your work for Problem 12 in the space below.

47

Page 50: IP Addressing & Subnetting Handbook - Pravin Shetty...IP Addressing and Subnetting Workbook Version 1.1 IP Address Classes Class A 1 – 127 (Network 127 is reserved for loopback and

_______________________________________________

________________________

________________________

______________________________________

48

Subnetting

Problem 13Network Address

Address class

Default subnet mask

Custom subnet mask

Total number of subnets

Number of usable subnets

Total number of host addresses

Number of usable addresses

Number of bits borrowed

165.200.0.0 /26

__________

_______________________________

_______________________________

___________________

___________________

___________________

___________________

___________________

What is the 9th usablesubnet range?

What is the subnet numberfor the 10th usable

subnet?

What is the subnetbroadcast address for

the 1022nd usablesubnet?

What are the assignableaddresses for the 1021st

usable subnet?

Page 51: IP Addressing & Subnetting Handbook - Pravin Shetty...IP Addressing and Subnetting Workbook Version 1.1 IP Address Classes Class A 1 – 127 (Network 127 is reserved for loopback and

Show your work for Problem 13 in the space below.

49

Page 52: IP Addressing & Subnetting Handbook - Pravin Shetty...IP Addressing and Subnetting Workbook Version 1.1 IP Address Classes Class A 1 – 127 (Network 127 is reserved for loopback and

_______________________________________________

________________________

________________________

______________________________________

50

Subnetting

Problem 14Number of needed usable hosts

Network Address

Address class

Default subnet mask

Custom subnet mask

Total number of subnets

Number of usable subnets

Total number of host addresses

Number of usable addresses

Number of bits borrowed

16200.10.10.0

__________

_______________________________

_______________________________

___________________

___________________

___________________

___________________

___________________

What is the 6th usablesubnet range?

What is the subnet numberfor the 4th usable subnet?

What is the subnetbroadcast address for

the 3rd usable subnet?

What are the assignableaddresses for the 5th

usable subnet?

Page 53: IP Addressing & Subnetting Handbook - Pravin Shetty...IP Addressing and Subnetting Workbook Version 1.1 IP Address Classes Class A 1 – 127 (Network 127 is reserved for loopback and

Show your work for Problem 14 in the space below.

51

Page 54: IP Addressing & Subnetting Handbook - Pravin Shetty...IP Addressing and Subnetting Workbook Version 1.1 IP Address Classes Class A 1 – 127 (Network 127 is reserved for loopback and

_______________________________________________

________________________

________________________

______________________________________

52

Subnetting

Problem 15Network Address

Address class

Default subnet mask

Custom subnet mask

Total number of subnets

Number of usable subnets

Total number of host addresses

Number of usable addresses

Number of bits borrowed

93.0.0.0 \19

__________

_______________________________

_______________________________

___________________

___________________

___________________

___________________

___________________

What is the 14th usablesubnet range?

What is the subnet numberfor the 8th usable subnet?

What is the subnetbroadcast address forthe 6th usable subnet?

What are the assignableaddresses for the 11th

usable subnet?

Page 55: IP Addressing & Subnetting Handbook - Pravin Shetty...IP Addressing and Subnetting Workbook Version 1.1 IP Address Classes Class A 1 – 127 (Network 127 is reserved for loopback and

Show your work for Problem 15 in the space below.

53

Page 56: IP Addressing & Subnetting Handbook - Pravin Shetty...IP Addressing and Subnetting Workbook Version 1.1 IP Address Classes Class A 1 – 127 (Network 127 is reserved for loopback and

Valid and Non-Valid IP Addresses

Using the material in this workbook identify which of the addresses below are correct andusable. If they are not usable addresses explain why.

IP Address: 0.230.190.192 ________________________________Subnet Mask: 255.0.0.0 ________________________________

IP Address: 192.10.10.1 ________________________________Subnet Mask: 255.255.255.0 ________________________________

IP Address: 245.150.190.10 ________________________________Subnet Mask: 255.255.255.0 ________________________________

IP Address: 135.70.191.255 ________________________________Subnet Mask: 255.255.254.0 ________________________________

IP Address: 127.100.100.10 ________________________________Subnet Mask: 255.0.0.0 ________________________________

IP Address: 93.0.128.1 ________________________________Subnet Mask: 255.255.224.0 ________________________________

IP Address: 200.10.10.128 ________________________________Subnet Mask: 255.255.255.224 ________________________________

IP Address: 165.100.255.189 ________________________________Subnet Mask: 255.255.255.192 ________________________________

IP Address: 190.35.0.10 ________________________________Subnet Mask: 255.255.255.192 ________________________________

IP Address: 218.35.50.195 ________________________________Subnet Mask: 255.255.0.0 ________________________________

IP Address: 200.10.10.175 /22 ________________________________________________________________

IP Address: 135.70.255.255 ________________________________Subnet Mask: 255.255.224.0 ________________________________

The network ID cannot be 0.

OK

54

Page 57: IP Addressing & Subnetting Handbook - Pravin Shetty...IP Addressing and Subnetting Workbook Version 1.1 IP Address Classes Class A 1 – 127 (Network 127 is reserved for loopback and

Class A Addressing Guide# of Bits

Borrowed23456789

10111213141516171819202122

SubnetMask

255.192.0.0255.224.0.0255.240.0.0255.248.0.0255.252.0.0255.254.0.0255.255.0.0

255.255.128.0255.255.192.0255.255.224.0255.255.240.0255.255.248.0255.255.252.0255.255.254.0255.255.255.0

255.255.255.128255.255.255.192255.255.255.224255.255.255.240255.255.255.248255.255.255.252

Total # ofSubnets

48

163264128256512

1,0242,0484,0968,192

16,38432,76865,536

131,072262,144524,288

1,048,5762,097,1524,194,304

Usable # ofSubnets

26

143062126254510

1,0222,0464,0948,190

16,38232,76665,534

131,070262,142524,286

1,048,5742,097,1504,194,302

Total # ofHosts

4,194,3042,097,1521,048,576524,288262,144131,07265,53632,76816,3848,1924,0962,0481,02451225612864321684

Usable # ofHosts

4,194,3022,097,1501,048,574524,286262,142131,07065,53432,76616,3828,1904,0942,0461,02251025412662301462

Class B Addressing Guide# of Bits

Borrowed23456789

1011121314

SubnetMask

255.255.192.0255.255.224.0255.255.240.0255.255.248.0255.255.252.0255.255.254.0255.255.255.0

255.255.255.128255.255.255.192255.255.255.224255.255.255.240255.255.255.248255.255.255.252

Total # ofSubnets

48

163264128256512

1,0242,0484,0968,192

16,384

Usable # ofSubnets

26

143062126254510

1,0222,0464,0948,190

16,382

Total # ofHosts16,3848,1924,0962,0481,02451225612864321684

Usable # ofHosts16,3828,1904,0942,0461,02251025412662301462

Class C Addressing Guide# of Bits

Borrowed23456

SubnetMask

255.255.255.192255.255.255.224255.255.255.240255.255.255.248255.255.255.252

Total # ofSubnets

48

163264

Usable # ofSubnets

26

143062

Total # ofHosts

64321684

Usable # ofHosts

62301462

Inside Cover

Page 58: IP Addressing & Subnetting Handbook - Pravin Shetty...IP Addressing and Subnetting Workbook Version 1.1 IP Address Classes Class A 1 – 127 (Network 127 is reserved for loopback and

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