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IP Addressing & Subnetting Handbook - Instructors Version
001
IP Addressing
and
Subnetting
Workbook
Version 1.1
Instructor’s Edition
11111110
10010101
00011011
10000110
11010011
1010100
10001111100
1011100101011100
101100011101001
1011110100011010
00001010010110010
1001010101100111
1111010101000101
1101001101010011
001010010101010
1010101000110010
010101001011000
110101100011010
11010100001011
001010100110
1001010010
131740436.001.png
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
Produced by: Robb Jones
jonesr@careertech.net
Frederick County Career & Technology Center
Cisco Networking Academy
Frederick County Public Schools
Frederick, Maryland, USA
Special Thanks to Melvin Baker and Jim Dorsch
for taking the time to check this workbook for errors.
Inside Cover
Network . Host . Host . Host
Network . Network . Host . Host
Network . Network . Network . Host
Binary To Decimal Conversion
84268421Answers Scratch Area
1
0
0
1
0
0
1
0
146
128
16
2
146
64
32
16
4
2
1
119
0
1
1
1
0
1
1
1
119
1
1
1
1
1
1
1
1
255
1
1
0
0
0
1
0
1
197
1
1
1
1
0
1
1
0
246
0
0
0
1
0
0
1
1
19
1
0
0
0
0
0
0
1
129
0
0
1
1
0
0
0
1
49
0
1
1
1
1
0
0
0
120
1
1
1
1
0
0
0
0
240
0
0
1
1
1
0
1
1
59
0
0
0
0
0
1
1
1
7
00011011
27
10101010
170
01101111
111
11111000
248
00100000
32
01010101
85
00111110
62
00000011
3
11101101
237
11000000
192
1
131740436.002.png
Decimal To Binary Conversion
84268421 = 5
Scratch Area
_________________________________________ 238
238
-128
110
-64
46
-32
14
-8
6
-4
2
-2
0
34
-32
2
-2
0
_________________________________________ 34
_________________________________________ 123
_________________________________________ 50
_________________________________________ 255
_________________________________________ 200
_________________________________________ 10
_________________________________________ 138
_________________________________________ 1
_________________________________________ 13
_________________________________________ 250
_________________________________________ 107
_________________________________________ 224
_________________________________________ 114
_________________________________________ 192
_________________________________________ 172
_________________________________________ 100
_________________________________________ 119
_________________________________________ 57
_________________________________________ 98
_________________________________________ 179
_________________________________________ 2
2
Use all 8 bits for each problem
11101110
001 0001 0
01111011
0 0 1 1 0 0 1 0
1 1 1 1 1 1 1 1
1 1 0 0 1 0 0 0
0 0 0 0 1 0 1 0
1 0 0 0 1 0 1 0
0 0 0 0 0 0 0 1
0 0 0 0 1 1 0 1
1 1 1 1 1 0 1 0
0 1 1 0 1 0 1 1
1 1 1 0 0 0 0 0
0 1 1 1 0 0 1 0
1 1 0 0 0 0 0 0
1 0 1 0 1 1 0 0
0 1 1 0 0 1 0 0
0 1 1 1 0 1 1 1
0 0 1 1 1 0 0 1
0 1 1 0 0 0 1 0
1 0 1 1 0 0 1 1
0 0 0 0 0 0 1 0
131740436.003.png
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
_____
3
A
B
C
B
C
A
C
D
B
A
E
C
A
C
C
A
A
B
C

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