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Appendix B IP Addresses and Subnetting
P-320W v3 User’s Guide
208
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 121
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 85
Subnet Mask - Identifying Network Number
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 P-320W v3
Страница 2: ......
Страница 8: ...Safety Warnings P 320W v3 User s Guide 8 ...
Страница 10: ...Contents Overview P 320W v3 User s Guide 10 ...
Страница 18: ...Table of Contents P 320W v3 User s Guide 18 ...
Страница 20: ...20 ...
Страница 24: ...Chapter 1 Getting to Know Your P 320W v3 P 320W v3 User s Guide 24 ...
Страница 36: ...Chapter 2 Introducing the Web Configurator P 320W v3 User s Guide 36 ...
Страница 54: ...54 ...
Страница 72: ...Chapter 4 Wireless LAN P 320W v3 User s Guide 72 ...
Страница 76: ...Chapter 5 Wireless Client Mode P 320W v3 User s Guide 76 ...
Страница 88: ...Chapter 7 LAN P 320W v3 User s Guide 88 ...
Страница 104: ...Chapter 10 VLAN P 320W v3 User s Guide 104 ...
Страница 105: ...105 PART III Security Firewall 117 Content Filtering 125 ...
Страница 106: ...106 ...
Страница 116: ...Chapter 11 WAN P 320W v3 User s Guide 116 ...
Страница 124: ...Chapter 12 Firewall P 320W v3 User s Guide 124 ...
Страница 129: ...129 PART IV Management Static Route 131 Remote Management 135 Universal Plug and Play UPnP 141 ...
Страница 130: ...130 ...
Страница 134: ...Chapter 14 Static Route P 320W v3 User s Guide 134 ...
Страница 140: ...Chapter 15 Remote Management P 320W v3 User s Guide 140 ...
Страница 154: ...Chapter 16 Universal Plug and Play UPnP P 320W v3 User s Guide 154 ...
Страница 155: ...155 PART V Maintenance and Troubleshooting System 157 Logs 163 Product Specifications 193 ...
Страница 156: ...156 ...
Страница 178: ...Chapter 18 Logs P 320W v3 User s Guide 178 ...
Страница 184: ...Chapter 19 Tools P 320W v3 User s Guide 184 ...
Страница 192: ...Chapter 20 Troubleshooting P 320W v3 User s Guide 192 ...
Страница 196: ...Chapter 21 Product Specifications P 320W v3 User s Guide 196 ...
Страница 198: ...198 ...
Страница 260: ...Index P 320W v3 User s Guide 260 ...
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