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VSG-1200 User’s Guide
268
Appendix H IP Subnetting
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 VSG-1200
Страница 1: ...VSG 1200 Vantage Service Gateway User s Guide Version 1 08 1 2006 ...
Страница 8: ...VSG 1200 User s Guide 8 Customer Support ...
Страница 22: ...VSG 1200 User s Guide 22 List of Figures ...
Страница 26: ...VSG 1200 User s Guide 26 List of Tables ...
Страница 40: ...VSG 1200 User s Guide 40 Chapter 2 Hardware Installation and Connection ...
Страница 45: ...VSG 1200 User s Guide Chapter 3 The Web Configurator 45 Figure 13 System Setting System ...
Страница 52: ...VSG 1200 User s Guide 52 Chapter 3 The Web Configurator ...
Страница 64: ...VSG 1200 User s Guide 64 Chapter 4 LAN WAN and Server Setup ...
Страница 74: ...VSG 1200 User s Guide 74 Chapter 6 Authentication Figure 29 System Setting Authentication ...
Страница 102: ...VSG 1200 User s Guide 102 Chapter 9 Dynamic Subscriber Accounts ...
Страница 128: ...VSG 1200 User s Guide 128 Chapter 13 Subscriber Information Window ...
Страница 130: ...VSG 1200 User s Guide 130 Chapter 14 Account Printout Figure 79 Customization Account Printout ...
Страница 133: ...VSG 1200 User s Guide Chapter 14 Account Printout 133 Figure 82 Static Account Printout Statement Printer Example ...
Страница 135: ...VSG 1200 User s Guide Chapter 14 Account Printout 135 Figure 85 Dynamic Account Printout Statement Printer Example ...
Страница 136: ...VSG 1200 User s Guide 136 Chapter 14 Account Printout ...
Страница 140: ...VSG 1200 User s Guide 140 Chapter 15 User Agreement Page ...
Страница 144: ...VSG 1200 User s Guide 144 Chapter 16 Bandwidth Management ...
Страница 158: ...VSG 1200 User s Guide 158 Chapter 19 LAN Devices ...
Страница 162: ...VSG 1200 User s Guide 162 Chapter 20 Static Route ...
Страница 170: ...VSG 1200 User s Guide 170 Chapter 21 Syslog and Session Trace ...
Страница 174: ...VSG 1200 User s Guide 174 Chapter 22 SNMP ...
Страница 198: ...VSG 1200 User s Guide 198 Chapter 25 Secure Socket Layer ...
Страница 206: ...VSG 1200 User s Guide 206 Chapter 26 The SMT ...
Страница 214: ...VSG 1200 User s Guide 214 Chapter 27 LAN and WAN Setup Using the SMT ...
Страница 226: ...VSG 1200 User s Guide 226 Chapter 28 Configuration and Firmware Maintenance ...
Страница 236: ...VSG 1200 User s Guide 236 Appendix B IP Address Assignment Conflicts ...
Страница 238: ...VSG 1200 User s Guide 238 Appendix C Subscriber Login ...
Страница 242: ...VSG 1200 User s Guide 242 Appendix D Vendor Specific Attributes ...
Страница 252: ...VSG 1200 User s Guide 252 Appendix F Cable Types and Cable Pin Assignments ...
Страница 264: ...VSG 1200 User s Guide 264 Appendix G Setting up Your Computer s IP Address ...
Страница 272: ...VSG 1200 User s Guide 272 Appendix H IP Subnetting ...