ZyXEL G-405 User Guide - Page 90

Chart 8-10 Subnet 4, Example Eight Subnets, Chart 8-11 Eight Subnets

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ZyAIR G-405 User's Guide Chart 8-10 Subnet 4 NETWORK NUMBER LAST OCTET BIT VALUE IP Address 192.168.1. 192 IP Address (Binary) 11000000.10101000.00000001. 11000000 Subnet Mask (Binary) 11111111.11111111.11111111. 11000000 Subnet Address: 192.168.1.192 Lowest Host ID: 192.168.1.193 Broadcast Address: 192.168.1.255 Highest Host ID: 192.168.1.254 Example Eight Subnets Similarly use a 27-bit mask to create 8 subnets (001, 010, 011, 100, 101, 110). The following table shows class C IP address last octet values for each subnet. Chart 8-11 Eight Subnets SUBNET 1 2 3 4 5 6 7 8 SUBNET ADDRESS 0 32 64 96 128 160 192 224 FIRST ADDRESS 1 33 65 97 129 161 193 223 LAST ADDRESS 30 62 94 126 158 190 222 254 BROADCAST ADDRESS 31 63 95 127 159 191 223 255 The following table is a summary for class "C" subnet planning. Chart 8-12 Class C Subnet Planning NO. "BORROWED" HOST BITS SUBNET MASK NO. SUBNETS 1 255.255.255.128 (/25) 2 2 255.255.255.192 (/26) 4 NO. HOSTS PER SUBNET 126 62 P IP Subnetting

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ZyAIR G-405 User’s Guide
P
IP Subnetting
Chart 8-10 Subnet 4
NETWORK NUMBER
LAST OCTET BIT VALUE
IP Address
192.168.1.
192
IP Address (Binary)
11000000.10101000.00000001.
11
000000
Subnet Mask (Binary)
11111111.11111111.11111111.
11
000000
Subnet Address: 192.168.1.192
Lowest Host ID: 192.168.1.193
Broadcast Address: 192.168.1.255
Highest Host ID: 192.168.1.254
Example Eight Subnets
Similarly use a 27-bit mask to create 8 subnets (001, 010, 011, 100, 101, 110).
The following table shows class C IP address last octet values for each subnet.
Chart 8-11 Eight Subnets
SUBNET
SUBNET ADDRESS
FIRST ADDRESS
LAST ADDRESS
BROADCAST ADDRESS
1
0
1
30
31
2
32
33
62
63
3
64
65
94
95
4
96
97
126
127
5
128
129
158
159
6
160
161
190
191
7
192
193
222
223
8
224
223
254
255
The following table is a summary for class “C” subnet planning.
Chart 8-12 Class C Subnet Planning
NO. “BORROWED” HOST BITS
SUBNET MASK
NO. SUBNETS
NO. HOSTS PER
SUBNET
1
255.255.255.128 (/25)
2
126
2
255.255.255.192 (/26)
4
62