Internet address
<networking> (IP address) The 32-bit number uniquely identifying a node
on a network using Internet Protocol, as defined in STD 5, RFC 791. An IP
address is represented in dotted decimal notation, e.g. 128.121.4.5.
The address can be split into a network number (or network address) and a host
number unique to each host on the network and sometimes also a subnet address.
The way the address is split depends on its "class", A, B or C (but see also
CIDR). The class is determined by the high address bits:
Class A - high bit 0, 7-bit network number, 24-bit host number. n1.a.a.a 0 <= n1
<= 127
Class B - high 2 bits 10, 14-bit network number, 16-bit host number. n1.n2.a.a
128 <= n1 <= 191
Class C - high 3 bits 110, 21-bit network number, 8-bit host number. n1.n2.n3.a
192 <= n1 <= 223
DNS translates a node's fully qualified domain name to an Internet address which
ARP (or constant mapping) translates to an Ethernet address.
[Jargon File]
(2006-01-27)
Nearby terms:
internet « Internet Access Provider « Internet
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Internet address » internet address » Internet
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