Agilent Technologies N8201A - Manual (Page 120)

116 Agilent N8201A Performance Downconverter Synthetic Instrument Module, 3 Hz to 26.5 GHz
7 Glossary
The subnet mask can be used with a device’s IP address to determine the address of the
subnet that the device is on. To do this, you perform a logical AND of the subnet mask and
the IP address. (A logical AND combines two binary numbers into a single number. The new
number contains 1s in positions where both numbers had 1s, and 0s everywhere else.)
For example, if a device has an IP address of 192.168.12.34 and the subnet mask
255.255.255.0
then:
The device is on the subnet with the 192.168.12.0 address.
A device with the IP address 192.168.12.100 is on the same subnet as the device
with the IP address 192.168.12.34 (the 192.168.12.0 subnet), but a device with
an IP address of 192.168.100.34 is on a different subnet (the 192.168.100.0
subnet).
192.168.12.34 = 11000000. 10101000. 00001100. 00100010
255.255.255.0 = 11111111. 11111111. 11111111. 00000000
Subnet Address = 11000000. 10101000. 00001100. 00000000
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