X7968r / X7967r / X7927r / X7922r
User
’
s Guide
89
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 device 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.
Network
A group of computers that are connected together,
allowing them to communicate with each other and
share resources, such as software, files, etc. A
network can be small, such as a LAN, or very
large, such as the Internet.
