Home Station ADSL ADB P.DG A4001N 99
LAN
Local Area Network. A network of end stations (such as PCs, printers, servers) and network devices (hubs and
switches) that cover a relatively small geographic area (usually not larger than a floor or building). LANs are charac-
terized by high transmission speeds over short distances (up to 1000 metres).
MAC
Media Access Control. A protocol specified by the IEEE for determining which devices have access to a network at
any one time.
MAC Address
Media Access Control Address. Also called the hardware or physical address. A layer 2 address associated with a
particular network device. Most devices that connect to a LAN have a MAC address assigned to them as they are
used to identify other devices in a network. MAC addresses are 6 bytes long.
Mbps
Megabits per second.
MDI/MDIX
In cable wiring, the concept of transmit and receive are from the perspective of the PC, which is wired as a Media
Dependant Interface (MDI). In MDI wiring, a PC transmits on pins 1 and 2. At the hub, switch, router, or access
point, the perspective is reversed, and the hub receives on pins 1 and 2. This wiring is referred to as Media Depend-
ant Interface - Crossover (MDI-X).
NAT
Network Address Translation. NAT enables all the computers on your network to share one IP address. The NAT
capability of the Router allows you to access the Internet from any computer on your home network without hav-
ing to purchase more IP addresses from your ISP.
Network
A Network is a collection of computers and other computer equipment that are connected for the purpose of ex-
changing information or sharing resources. Networks vary in size, some are within a single room, others span con-
tinents.
Network Interface Card (NIC)
A circuit board installed into a piece of computing equipment, for example, a computer, that enables you to con-
nect it to the network. A NIC is also known as an adapter or adapter card.
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