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G-3000H User’s Guide
258
Appendix H IP Subnetting
Note:
In the following charts, shaded/bolded last octet bit values indicate host ID bits
“borrowed” to form network ID bits. The number of “borrowed” host ID bits determines
the number of subnets you can have. The remaining number of host ID bits (after
“borrowing”) determines the number of hosts you can have on each subnet.
The remaining 7 bits determine the number of hosts each subnet can have. Host IDs of all
zeros represent the subnet itself and host IDs of all ones are the broadcast address for that
subnet, so the actual number of hosts available on each subnet in the example above is 2
7
– 2
or 126 hosts for each subnet.
192.168.1.0 with mask 255.255.255.128 is the subnet itself, and 192.168.1.127 with mask
255.255.255.128 is the directed broadcast address for the first subnet. Therefore, the lowest IP
address that can be assigned to an actual host for the first subnet is 192.168.1.1 and the highest
is 192.168.1.126. Similarly the host ID range for the second subnet is 192.168.1.129 to
192.168.1.254.
Table 101
Subnet 1
NETWORK NUMBER
LAST OCTET BIT
VALUE
IP Address
192.168.1.
0
IP Address (Binary)
11000000.10101000.00000001.
0
0000000
Subnet Mask
255.255.255.
128
Subnet Mask (Binary)
11111111.11111111.11111111.
1
0000000
Subnet Address: 192.168.1.0
Lowest Host ID: 192.168.1.1
Broadcast Address:
192.168.1.127
Highest Host ID: 192.168.1.126
Table 102
Subnet 2
NETWORK NUMBER
LAST OCTET BIT VALUE
IP Address
192.168.1.
128
IP Address (Binary)
11000000.10101000.00000001.
1
0000000
Subnet Mask
255.255.255.
128
Subnet Mask (Binary)
11111111.11111111.11111111.
1
0000000
Subnet Address:
192.168.1.128
Lowest Host ID: 192.168.1.129
Broadcast Address:
192.168.1.255
Highest Host ID: 192.168.1.254
Содержание ZyAIR G-3000H
Страница 1: ...G 3000H 802 11g Wireless Access Point User s Guide Version 3 50 1 2006 ...
Страница 22: ...G 3000H User s Guide 22 List of Figures ...
Страница 26: ...G 3000H User s Guide 26 List of Tables ...
Страница 114: ...G 3000H User s Guide 114 Chapter 9 VLAN ...
Страница 134: ...G 3000H User s Guide 134 Chapter 11 Certificates ...
Страница 164: ...G 3000H User s Guide 164 Chapter 15 Introducing the SMT ...
Страница 180: ...G 3000H User s Guide 180 Chapter 17 LAN Setup ...
Страница 218: ...G 3000H User s Guide 218 Chapter 24 System Maintenance and Information ...
Страница 224: ...G 3000H User s Guide 224 Appendix C Power over Ethernet PoE Specifications ...
Страница 226: ...G 3000H User s Guide 226 Appendix D Brute Force Password Guessing Protection ...
Страница 238: ...G 3000H User s Guide 238 Appendix E Setting up Your Computer s IP Address ...
Страница 242: ...G 3000H User s Guide 242 Appendix F IP Address Assignment Conflicts ...
Страница 254: ...G 3000H User s Guide 254 Appendix G Wireless LANs ...
Страница 262: ...G 3000H User s Guide 262 Appendix H IP Subnetting ...
Страница 264: ...G 3000H User s Guide 264 Appendix I Command Interpreter ...
Страница 268: ...G 3000H User s Guide 268 Appendix J Log Descriptions ...
Страница 272: ...G 3000H User s Guide 272 Appendix L Power Adaptor Specifications ...
Страница 280: ...G 3000H User s Guide 280 Appendix M Text File Based Auto Configuration ...
Страница 294: ...G 3000H User s Guide 294 Appendix N Wireless LAN Manager ...
Страница 299: ...G 3000H User s Guide Index 299 ZyNOS F W Version 196 zyxel prowireless mib 287 ...