Internet Protocol (IP) Definition/Meaning:
1. The DARPA internet protocol, which links
defense-research centers in the US and Europe using underlying networks such as
the ARPANET, satellite networks, and many different local area networks. Host addresses use a 32-bit field, which is broken into one, two, or three octets of network numbers, with the remainder of the 32-bits being used for addressing within networks. The IP protocol provides a uniform datagram network service on top of a heterogeneous underlying network
2. The Xerox internet protocol, which
provides datagram network service on top of heterogeneous underlying networks,
using a 32-bit network address and a 48-bit host address that is independent of
the network. See also internetworking.