SMC Networks ADSL Barricade SMC7204BRA - Manual (Page 187)

Terminology
191
IP address (Internet Protocol address)
The address of a host (computer) on the Internet, consisting
of four numbers, each from 0 to 255, separated by periods,
e.g., 209.191.4.240. An IP address consists of a network ID that
identifies the particular network the host belongs to, and a host
ID uniquely identifying the host itself on that network. A network
mask is used to define the network ID and the host ID. Because
IP addresses are difficult to remember, they usually have an
associated domain name that can be specified instead. See
also domain name, network mask.
ISP (Internet Service Provider)
A company that provides Internet access to its customers,
usually for a fee.
LAN (Local Area Network)
A network limited to a small geographic area, such as a home,
office, or small building.
LED (Light Emitting Diode)
An electronic light-emitting device. The indicator lights on the
front of the ADSL Barricade are LEDs.
MAC address (Media Access Control address)
The permanent hardware address of a device, assigned by its
manufacturer. MAC addresses are expressed as six pairs of
characters.