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Glossary – Buffalo Technology WLI2-CB-G54L User Manual

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NAT (Network Address Translation): An inter-

net standard that enables a LAN to use one set

of IP addresses for internal traffic and a second

set for external traffic.
NIC (Network Interface Card): An expansion

card connected to a computer so the computer

can be connected to a network.
Packet: A block of data that is transferred as a

single unit, also called a frame or a block.
Packet Filtering: Discarding unwanted net-

work traffic based on its originating address or

its type.
PCI (Peripheral Component Interconnect): A

bus that is connected directly to the CPU.
PCMCIA (Personal Computer Memory Card

International Association) Card: Remov-

able module that adds features to a portable

computer.
Ping (Packet Internet Groper): An Internet

utility used to determine whether a particular IP

address is online.

Plug and Play: Hardware that, once in-

stalled (“plugged in”), can immediately be

used (“played”), as opposed to hardware that

requires manual configuration.
PoE (Power over Ethernet): A mechanism

to send DC power to a device using a CAT5

Ethernet cable.
PPPoE (Point-to-Point Protocol over Ether-

net): A specification for connecting users on an

Ethernet line to the Internet through a common

broadband medium.
Protocol: A standard way of exchanging infor-

mation between computers.
RADIUS (Remote Authentication Dial In User

Service): A server that issues authentication

key to clients.
RAM (Random Access Memory): Non-perma-

nent memory.
Repeater Hub: A device that collects, strength-

ens and transmits information to all connected

Glossary