Cisco.Press.CCNP.Routing.Exam.Certification.Guide.Appendix.pdf

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395201810 UNPDF
This appendix contains job aids and supplements for the following topics:
•
Extending IP Addressing Job Aids
•
Supplement 1: Addressing Review
•
Supplement 2: IP Access Lists
•
Supplement 3: OSPF
•
Supplement 4: EIGRP
•
Supplement 5: BGP
•
Supplement 6: Route Optimization
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Job Aids and Supplements
The job aids and supplements are provided to give you some background information and
additional examples of the concepts covered in this book.
The IP addressing job aids are intended for your use when working with IP addresses. The
information in Supplement 1, “Addressing Review,” and Supplement 2, “IP Access Lists,”
should be a review of the fundamentals of IP addressing and of the concepts and
configuration of access lists, respectively. The other supplements contain examples and
additional material on the OSPF, EIGRP, and BGP routing protocols, and on route
optimization.
Extending IP Addressing Job Aids
This section includes the following job aids that you may find useful when working with IP
addressing:
•
IP addresses and subnetting
•
Decimal-to-binary conversion chart
IP Addresses and Subnetting
Figure A-1 is a job aid to help you with various aspects of IP addressing, including how to
distinguish address classes, the number of subnets and hosts available with various subnet
masks, and how to interpret IP addresses.
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3
Job Aids and Supplements
Figure A-1
IP Addresses and Subnetting Job Aid
Class
Net
host
First
octet
Standard mask
binary
Subnet
bits
Subnet
mask
Number of
subnets
Number of
hosts
A
B
C
N.H.H.H
N.N.H.H
N.N.N.H
1–126
128–191
192–223
1111 1111 0000 0000 0000 0000 0000 0000
1111 1111 1111 1111 0000 0000 0000 0000
1111 1111 1111 1111 1111 1111 0000 0000
Class B
2
3
4
5
6
7
8
9
10
11
12
13
14
255.255.192.0
255.255.224.0
255.255.240.0
255.255.248.0
255.255.252.0
255.255.254.0
255.255.255.0
255.255.255.128
255.255.255.192
255.255.255.224
255.255.255.240
255.255.255.248
255.255.255.252
4
8
16
32
64
128
256
512
1024
2048
4096
8192
16384
16382
8190
4094
2046
1022
510
254
126
62
30
14
6
2
Address 172.16.5.72 1000 0011 0001 0000 0000 0101 0100 1000
Subnet mask 255.255.255.192 1111 1111 1111 1111 1111 1111 1100 0000
S
u
b
n
e
t
t
i
n
g
First octet
(172 - Class B)
defines network
portion.
1010 1100 0001 0000 0000 0101 0100 1000
Network
1111 1111 1111 1111 1111 1111 1100 0000
Of the part that
remains, the subnet
mask bits define the
subnet portion.
0000 0101 0100 1000
Class C
Subnet
2
3
4
5
6
255.255.255.192
255.255.255.224
255.255.255.240
255.255.255.248
255.255.255.252
4
8
16
32
64
62
30
14
6
2
1111 1111 1100 0000
Whatever bits
remain define the
host portion.
00 1000
Host
00 0000
Decimal-to-Binary Conversion Chart
The following can be used to convert from decimal to binary, and from binary to decimal:
Decimal Binary
Decimal Binary
Decimal Binary
Decimal Binary
0
00000000 64
01000000 128
10000000 192
11000000
1
00000001 65
01000001 129
10000001 193
11000001
2
00000010 66
01000010 130
10000010 194
11000010
3
00000011 67
01000011 131
10000011 195
11000011
4
00000100 68
01000100 132
10000100 196
11000100
5
00000101 69
01000101 133
10000101 197
11000101
6
00000110 70
01000110 134
10000110 198
11000110
7
00000111 71
01000111 135
10000111 199
11000111
8
00001000 72
01001000 136
10001000 200
11001000
9
00001001 73
01001001 137
10001001 201
11001001
10
00001010 74
01001010 138
10001010 202
11001010
11
00001011 75
01001011 139
10001011 203
11001011
12
00001100 76
01001100 140
10001100 204
11001100
13
00001101 77
01001101 141
10001101 205
11001101
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Extending IP Addressing Job Aids
4
(Continued)
Decimal Binary
Decimal Binary
Decimal Binary
Decimal Binary
14
00001110 78
01001110 142
10001110 206
11001110
15
00001111 79
01001111 143
10001111 207
11001111
16
00010000 80
01010000 144
10010000 208
11010000
17
00010001 81
01010001 145
10010001 209
11010001
18
00010010 82
01010010 146
10010010 210
11010010
19
00010011 83
01010011 147
10010011 211
11010011
20
00010100 84
01010100 148
10010100 212
11010100
21
00010101 85
01010101 149
10010101 213
11010101
22
00010110 86
01010110 150
10010110 214
11010110
23
00010111 87
01010111 151
10010111 215
11010111
24
00011000 88
01011000 152
10011000 216
11011000
25
00011001 89
01011001 153
10011001 217
11011001
26
00011010 90
01011010 154
10011010 218
11011010
27
00011011 91
01011011 155
10011011 219
11011011
28
00011100 92
01011100 156
10011100 220
11011100
29
00011101 93
01011101 157
10011101 221
11011101
30
00011110 94
01011110 158
10011110 222
11011110
31
00011111 95
01011111 159
10011111 223
11011111
32
00100000 96
01100000 160
10100000 224
11100000
33
00100001 97
01100001 161
10100001 225
11100001
34
00100010 98
01100010 162
10100010 226
11100010
35
00100011 99
01100011 163
10100011 227
11100011
36
00100100 100
01100100 164
10100100 228
11100100
37
00100101 101
01100101 165
10100101 229
11100101
38
00100110 102
01100110 166
10100110 230
11100110
39
00100111 103
01100111 167
10100111 231
11100111
40
00101000 104
01101000 168
10101000 232
11101000
41
00101001 105
01101001 169
10101001 233
11101001
42
00101010 106
01101010 170
10101010 234
11101010
43
00101011 107
01101011 171
10101011 235
11101011
continues
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5
Job Aids and Supplements
(Continued)
Decimal Binary
Decimal Binary
Decimal Binary
Decimal Binary
44
00101100 108
01101100 172
10101100 236
11101100
45
00101101 109
01101101 173
10101101 237
11101101
46
00101110 110
01101110 174
10101110 238
11101110
47
00101111 111
01101111 175
10101111 239
11101111
48
00110000 112
01110000 176
10110000 240
11110000
49
00110001 113
01110001 177
10110001 241
11110001
50
00110010 114
01110010 178
10110010 242
11110010
51
00110011 115
01110011 179
10110011 243
11110011
52
00110100 116
01110100 180
10110100 244
11110100
53
00110101 117
01110101 181
10110101 245
11110101
54
00110110 118
01110110 182
10110110 246
11110110
55
00110111 119
01110111 183
10110111 247
11110111
56
00111000 120
01111000 184
10111000 248
11111000
57
00111001 121
01111001 185
10111001 249
11111001
58
00111010 122
01111010 186
10111010 250
11111010
59
00111011 123
01111011 187
10111011 251
11111011
60
00111100 124
01111100 188
10111100 252
11111100
61
00111101 125
01111101 189
10111101 253
11111101
62
00111110 126
01111110 190
10111110 254
11111110
63
00111111 127
01111111 191
10111111 255
11111111
Supplement 1: Addressing Review
This supplement reviews the basics of IP addresses, including the following:
•
Converting IP addresses between decimal and binary
•
Determining an IP address class
•
Extending an IP classful address using subnet masks
•
Calculating a subnet mask
•
Calculating the networks for a subnet mask
•
Using prefixes to represent a subnet mask
•
Review questions
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