
IP A ddr ess ing MN/22137, rev 1
A-10 Vipersat CDD-56X Series User Guide
Figure A-7
ANDing an IP address and a subnet mask
A calculator, available from SolarWinds, performs these IP and subnet mask
calculations and can be found at:
http://www.solarwinds.com/products/freetools/index.aspx
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
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
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