![background image](http://html1.mh-extra.com/html/zyxel-communications/p-320w/p-320w_user-manual_945264168.webp)
P-320W User’s Guide
168
Appendix B 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.
Table 76
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 77
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
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.
Содержание P-320W
Страница 1: ...P 320W 802 11g Wireless Firewall Router User s Guide Version 1 00 11 2005 Edition 1...
Страница 2: ......
Страница 10: ...P 320W User s Guide 10 Customer Support...
Страница 24: ...P 320W User s Guide 24...
Страница 34: ...P 320W User s Guide 34 Chapter 1 Getting to Know Your Prestige...
Страница 44: ...P 320W User s Guide 44 Chapter 2 Introducing the Web Configurator...
Страница 60: ...P 320W User s Guide 60 Chapter 3 Connection Wizard...
Страница 80: ...P 320W User s Guide 80 Chapter 4 Wireless LAN...
Страница 92: ...P 320W User s Guide 92 Chapter 5 WAN...
Страница 118: ...P 320W User s Guide 118 Chapter 10 Static Route Screens...
Страница 140: ...P 320W User s Guide 140 Chapter 13 System...
Страница 149: ...P 320W User s Guide Chapter 15 Tools 149 Figure 99 System Restart...
Страница 150: ...P 320W User s Guide 150 Chapter 15 Tools...
Страница 162: ...P 320W User s Guide 162 Chapter 16 Troubleshooting Figure 109 Security Setting ActiveX Controls...
Страница 172: ...P 320W User s Guide 172 Appendix B IP Subnetting...
Страница 194: ...P 320W User s Guide 194 Appendix E PPTP...