Appendix D IP Addresses and Subnetting
MAX318M2W User’s Guide
242
The following figure shows the company network after subnetting. There are now
two sub-networks, A and B.
Figure 154
Subnetting Example: After Subnetting
In a 25-bit subnet the host ID has 7 bits, so each sub-network has a maximum of
2
7
– 2 or 126 possible hosts (a host ID of all zeroes is the subnet’s address itself,
all ones is the subnet’s broadcast address).
192.168.1.0 with mask 255.255.255.128 is subnet A itself, and 192.168.1.127
with mask 255.255.255.128 is its broadcast address. Therefore, the lowest IP
address that can be assigned to an actual host for subnet A is 192.168.1.1 and
the highest is 192.168.1.126.
Similarly, the host ID range for subnet B is 192.168.1.129 to 192.168.1.254.
Example: Four Subnets
The previous example illustrated using a 25-bit subnet mask to divide a 24-bit
address into two subnets. Similarly, to divide a 24-bit address into four subnets,
you need to “borrow” two host ID bits to give four possible combinations (00, 01,
10 and 11). The subnet mask is 26 bits
(11111111.11111111.11111111.11000000) or 255.255.255.192.
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Страница 10: ...Contents Overview MAX318M2W User s Guide 10...
Страница 16: ...Table of Contents MAX318M2W User s Guide 16...
Страница 17: ...17 PART I User s Guide...
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Страница 24: ...Chapter 1 Getting Started MAX318M2W User s Guide 24...
Страница 57: ...57 PART II Technical Reference...
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Страница 62: ...Chapter 5 System Status MAX318M2W User s Guide 62...
Страница 84: ...Chapter 6 WiMAX MAX318M2W User s Guide 84...
Страница 126: ...Chapter 7 Network Settings MAX318M2W User s Guide 126...
Страница 132: ...Chapter 8 Security MAX318M2W User s Guide 132...
Страница 226: ...Appendix B Setting Up Your Computer s IP Address MAX318M2W User s Guide 226...
Страница 236: ...Appendix C Pop up Windows JavaScript and Java Permissions MAX318M2W User s Guide 236...
Страница 280: ...Appendix E Importing Certificates MAX318M2W User s Guide 280...
Страница 294: ...Index MAX318M2W User s Guide 294...