P-660HW-T v2 User’s Guide
Appendix H IP Addresses and Subnetting
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P P E N D I X
H
IP Addresses and Subnetting
This appendix introduces IP addresses, IP address classes and subnet masks. You use subnet
masks to subdivide a network into smaller logical networks.
Introduction to IP Addresses
An IP address has two parts: the network number and the host ID. Routers use the network
number to send packets to the correct network, while the host ID identifies a single device on
the network.
An IP address is made up of four octets, written in dotted decimal notation, for example,
192.168.1.1. (An octet is an 8-digit binary number. Therefore, each octet has a possible range
of 00000000 to 11111111 in binary, or 0 to 255 in decimal.)
There are several classes of IP addresses. The first network number (192 in the above
example) defines the class of IP address. These are defined as follows:
• Class A: 0 to 127
• Class B: 128 to 191
• Class C: 192 to 223
• Class D: 224 to 239
• Class E:
240 to 255
IP Address Classes and Hosts
The class of an IP address determines the number of hosts you can have on your network.
• In a class A address the first octet is the network number, and the remaining three octets
are the host ID.
• In a class B address the first two octets make up the network number, and the two
remaining octets make up the host ID.
• In a class C address the first three octets make up the network number, and the last octet
is the host ID.
Содержание VSG-1200 V2
Страница 1: ...VSG 1200 V2 Vantage Service Gateway User s Guide Version 1 00 10 2006 Edition 1 ...
Страница 6: ...VSG 1200 V2 User s Guide Safety Warnings 6 ...
Страница 19: ...VSG 1200 V2 User s Guide 19 Table of Contents ...
Страница 25: ...VSG 1200 V2 User s Guide 25 List of Figures ...
Страница 29: ...VSG 1200 V2 User s Guide 29 List of Tables ...
Страница 37: ...VSG 1200 V2 User s Guide 37 Chapter 1 Getting to Know Your VSG ...
Страница 49: ...VSG 1200 V2 User s Guide 49 Chapter 3 The Web Configurator ...
Страница 55: ...VSG 1200 V2 User s Guide 55 Chapter 4 Initial Setup Example ...
Страница 69: ...VSG 1200 V2 User s Guide 69 Chapter 6 LAN and WAN Setup ...
Страница 83: ...VSG 1200 V2 User s Guide 83 Chapter 9 Authentication Figure 32 System Settings Authentication ...
Страница 111: ...VSG 1200 V2 User s Guide 111 Chapter 12 Dynamic Subscriber Accounts ...
Страница 115: ...VSG 1200 V2 User s Guide 115 Chapter 13 Port Location Mapping ...
Страница 147: ...VSG 1200 V2 User s Guide 147 Chapter 16 Bandwidth Management ...
Страница 167: ...VSG 1200 V2 User s Guide 167 Chapter 22 Static Route ...
Страница 175: ...VSG 1200 V2 User s Guide 175 Chapter 24 Syslog ...
Страница 181: ...VSG 1200 V2 User s Guide 181 Chapter 26 SNMP ...
Страница 195: ...VSG 1200 V2 User s Guide 195 Chapter 28 System Status ...
Страница 213: ...VSG 1200 V2 User s Guide 213 Chapter 31 SSL Certificate ...
Страница 229: ...VSG 1200 V2 User s Guide 229 Chapter 32 Using The SMT ...
Страница 239: ...VSG 1200 V2 User s Guide 239 Appendix B IP Address Assignment Conflicts ...
Страница 241: ...VSG 1200 V2 User s Guide 241 Appendix C Subscriber Login ...
Страница 245: ...VSG 1200 V2 User s Guide 245 Appendix D Vendor Specific Attributes ...
Страница 255: ...VSG 1200 V2 User s Guide 255 Appendix F Cable Types and Cable Pin Assignments ...
Страница 267: ...VSG 1200 V2 User s Guide 267 Appendix G Setting up Your Computer s IP Address ...