Installation manual

Chapter 7: Glossary
Page 81
Hub A hub is a place of convergence where data arrives from one or more
directions and is forwarded out in one or more directions. It connects an
Ethernet bridge/router to a group of PCs on a LAN and allows
communication to pass between the networked devices.
ICMP Internet Control Message Protocol
An Internet protocol used to report errors and other network-related
information. The ping command makes use of ICMP.
IEEE The Institute of Electrical and Electronics Engineers is a technical
professional society that fosters the development of standards that often
become national and international standards.
Internet The global collection of interconnected networks used for both private and
business communications.
intranet A private, company-internal network that looks like part of the Internet
(users access information using web browsers), but is accessible only by
employees.
IP See TCP/IP.
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
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 or small
office.
LED Light Emitting Diode
An electronic light-emitting device. The indicator lights on the front of the
CopperJet 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 hex characters,
with each pair separated by colons. For example; NN:NN:NN:NN:NN:NN.
mask See network mask.
Mbps Abbreviation for Megabits per second, or one million bits per second.
Network data rates are often expressed in Mbps.
NAT Network Address Translation
A service performed by many routers that translates your network’s
publicly known IP address into a private IP address for each computer on
your LAN. Only your router and your LAN know these addresses; the
outside world sees only the public IP address when talking to a computer
on your LAN.