XL-12000S
MANAGED,HIGH-SPEED NETWORK MODEM USER GUIDE
66 TUT SYSTEMS APPENDIX D: SUBNET MASK TABLE
Appendix D: Subnet Mask Table
Below is a subnet mask table, which provides the following
information:
1. Subnet mask expressed as a dotted decimal.
2. The number of total subnets along with the number of total
hosts per subnet.
3. The network number, the IPaddress range, and the corresponding
broadcast address.
This netmask table only shows possible subnets of a Class C
address. For more information about TCP/IP and IP routing we
recommend “Internetworking with TCP/IP” by Douglas Comer,
Prentice Hall, 1995.
Table D.1 Subnet Mask Tables
Subnet Mask: 255.255.255.0 Total of Subnets:1 Subnet Hosts:254
Network Address IP Address Range Broadcast Address
.0 .1-.254 .255
Subnet Mask: 255.255.255.128 Total of Subnets: 2 Subnet Hosts: 126
Network Address IP Address Range Broadcast Address
.0 .1-.126 .127
.128 .129-.254 .255
Subnet Mask: 255.255.255.192 Total of Subnets: 4 Subnet Hosts: 62
Network Address IP Address Range Broadcast Address
.0 .1-.62 .63
.64 .65-.126 .127
.128 .129-.190 .191
.192 .193-.254 .255
Subnet Mask: 255.255.255.224 Total of Subnets: 8 Subnet Hosts: 30
Network Address IP Address Range Broadcast Address
.0 .1-30 .31
.32 .33-.62 .63
.64 .65-.94 .95
.96 .97-.126 .127
.128 .129-.158 .159
.160 .161-.190 .191
.192 .193-.222 .223
.224 .225-.254 .255
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