Appendix A IP Addresses and Subnetting
X2002 User’s Guide
510
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 298
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 207
IP Address Network Number and Host ID Example
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
Network Number
11000000 10101000 00000001
Host ID
00000010
Содержание X2002
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Страница 24: ...Table of Contents X2002 User s Guide 24...
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Страница 40: ...Chapter 2 How It Works X2002 User s Guide 40...
Страница 99: ...99 PART II Technical Reference...
Страница 100: ...100...
Страница 124: ...Chapter 5 Network Deployment X2002 User s Guide 124...
Страница 166: ...Chapter 7 Auto Provision X2002 User s Guide 166...
Страница 170: ...Chapter 8 QoS X2002 User s Guide 170...
Страница 248: ...Chapter 16 Click To Talk Group X2002 User s Guide 248...
Страница 252: ...Chapter 17 Group Access Code X2002 User s Guide 252...
Страница 304: ...Chapter 19 Auto Attendant X2002 User s Guide 304...
Страница 312: ...Chapter 20 LCR X2002 User s Guide 312...
Страница 346: ...Chapter 22 Call Services X2002 User s Guide 346...
Страница 380: ...Chapter 25 Status Observation X2002 User s Guide 380...
Страница 402: ...Chapter 27 Call Detail Record CDR X2002 User s Guide 402...
Страница 410: ...Chapter 28 ACD Logs X2002 User s Guide 410...
Страница 416: ...Chapter 29 Administrator Accounts X2002 User s Guide 416...
Страница 424: ...Chapter 30 Diagnostics X2002 User s Guide 424...
Страница 426: ...Chapter 31 X2002 User s Guide 426...
Страница 446: ...Chapter 32 Remote Management X2002 User s Guide 446...
Страница 448: ...Chapter 33 TFTP Management X2002 User s Guide 448...
Страница 462: ...Chapter 35 License Control X2002 User s Guide 462...
Страница 482: ...Chapter 36 Web Portal X2002 User s Guide 482...
Страница 508: ...Chapter 39 Product Specifications X2002 User s Guide 508...
Страница 548: ...Appendix C Legal Information X2002 User s Guide 548...
Страница 562: ...Index X2002 User s Guide 562...