Appendix G IP Addresses and Subnetting
ZyXEL NWA-1100 User’s Guide
182
The following figure shows an example IP address in which the first three octets
(192.168.1) are the network number, and the fourth octet (16) is the host ID.
Figure 100
Network Number and Host ID
How much of the IP address is the network number and how much is the host ID
varies according to the subnet mask.
Subnet Masks
A subnet mask is used to determine which bits are part of the network number,
and which bits are part of the host ID (using a logical AND operation). The term
“subnet” is short for “sub-network”.
A subnet mask has 32 bits. If a bit in the subnet mask is a “1” then the
corresponding bit in the IP address is part of the network number. If a bit in the
subnet mask is “0” then the corresponding bit in the IP address is part of the host
ID.
The following example shows a subnet mask identifying the network number (in
bold text) and host ID of an IP address (192.168.1.2 in decimal).
Table 57
Subnet Masks
1ST
OCTET:
(192)
2ND
OCTET:
(168)
3RD
OCTET:
(1)
4TH
OCTET
(2)
IP Address (Binary)
11000000
10101000
00000001
00000010
Subnet Mask (Binary)
11111111 11111111 11111111
00000000
Содержание NWA-1100
Страница 2: ......
Страница 8: ...Safety Warnings ZyXEL NWA 1100 User s Guide 8 ...
Страница 10: ...Contents Overview ZyXEL NWA 1100 User s Guide 10 ...
Страница 16: ...Table of Contents ZyXEL NWA 1100 User s Guide 16 ...
Страница 18: ...18 ...
Страница 32: ...Chapter 2 Introducing the Web Configurator ZyXEL NWA 1100 User s Guide 32 ...
Страница 46: ...46 ...
Страница 54: ...Chapter 5 System Screens ZyXEL NWA 1100 User s Guide 54 ...
Страница 72: ...Chapter 6 Wireless Settings Screen ZyXEL NWA 1100 User s Guide 72 ...
Страница 92: ...Chapter 8 RADIUS Screen ZyXEL NWA 1100 User s Guide 92 ...
Страница 96: ...Chapter 9 MAC Filter Screen ZyXEL NWA 1100 User s Guide 96 ...
Страница 100: ...Chapter 10 IP Screen ZyXEL NWA 1100 User s Guide 100 ...
Страница 136: ...Chapter 15 Troubleshooting ZyXEL NWA 1100 User s Guide 136 ...
Страница 138: ...138 ...
Страница 142: ...Appendix B Power over Ethernet PoE Specifications ZyXEL NWA 1100 User s Guide 142 ...
Страница 144: ...Appendix C Power Adaptor Specifications ZyXEL NWA 1100 User s Guide 144 ...
Страница 198: ...Appendix H Text File Based Auto Configuration ZyXEL NWA 1100 User s Guide 198 ...
Страница 214: ...Appendix J Open Software Announcements ZyWALL USG 300 User s Guide 214 ...
Страница 225: ...Index ZyXEL NWA 1100 User s Guide 225 ...