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IP Addressing

A-10 Vipersat SLM-5650A User Guide

Figure A-7

ANDing an IP address and a subnet mask

A free calculator, available from SolarWinds, performs these IP and subnet

mask calculations and can be found at:

www.solarwinds.com/products/freetools/

Network Segments

A “Network Segment” is a portion of a network that is bordered by two router

interfaces as shown in Figure A-8.

Figure A-8

Network Segments

Each network segment must either be on a different network or a different

subnet. For example, if you have a single IP address available, you can change

the default mask from 255.255.255.0 to 255.255.255.192. The resulting calcula-

tion yields four subnets:

• 192.168.100.0

• 192.168.100.64

• 192.168.100.128

• 192.168.100.192

ANDing Result

Subnet Mask

IP Address

11000000.10101000.00000010.00000000192.168.2.0

11111111.11111111.11111111.00000000255.255.255.0

11000000.10101000.00000010.01000010192.168.2.66

Binary Values

Dotted Decimal

Address