Buffalo WLI2-PCI-G54S User Manual page 37

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