How Ip Addresses Work - 3Com OfficeConnect 3C16710 User Manual

16710.bk : IPADDRES.FRM Page 3 Tuesday, October 7, 1997 11:38 AM
Asia Pacific Network Information Centre
(APNIC-DOM)
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Admin. Contact:
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Conrad, David (DC396)
+81 3 3580 3781
or +81 3 3580 3784
+81 3 3580 3782
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How IP Addresses Work

To make internet addressing easier to understand, IP
addresses are written in dotted decimal notation, for
example:
191.0.0.72
(10111111.00000000.00000000.01001000 in binary)
The IP address field is affected by:
Classes
Subnets
Classes
Depending on the Class (or type) of the IP address,
there are many ways that the address field can be
divided into a network number and a device number.
The number used to convey how an IP address is
divided is determined by the most significant bits in
the 32-bit address field.
There are four classes of IP addresses. Each address
class begins with a unique bit pattern, which is used
by the Internet software residing on your devices to
identify the address class.
IP Addresses B-3