Network Router User Manual

77
AppendixC–Glossary
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AccessPoint
A base station in a WLAN that act as a central transmitter and receiver of WLAN radio signals.
AdHocNetwork
Ad hoc network refers to a short-term WLAN framework created between two or more WLAN
adapters, without going through an Access Point. An ad hoc network allows computers to "talk"
(send data) directly to and from one another. For an ad hoc network to work, each computer on the
network needs a WLAN card installed configured for Ad Hoc mode.
Antenna
A device that transmits and receives radio-frequency (RF) signals. Often camouflaged on existing
buildings, trees, water towers or other tall structures, the size and shape of antennas are generally
determined by the frequency of the signal they manage.
Authentication
A process that verifies the identity of a wireless device or end-user. One of the most common
forms of authentication is to verify identities by checking a user name and password to allow
network access.
Backbone
Ahigh‐speedlineorseriesofconnectionsformingamajorpathwaywithinanetwork.
Bandwidth
Theportionofthefrequencyspectrumrequiredtotransmitdesiredinformation.Eachradio
channelhasacenterfrequencyandadditionalfrequenciesaboveandbelowthiscarrier
frequencywhichisusedtocarrythetransmittedinformation.Therangeoffrequenciesfromthe
lowesttothehighestusediscalledthebandwidth.
Bridge
A wireless device that connects multiple networks that are physically separate or use different
media, but which use similar standards.
BridgeMode
AnAccessPointyinbridgemodecanoperateasaWLANbridgethatconnectstwowirednetwork
segments.Thepeerdevicealsomustbeinbridgemode.Thiswirelessbridgeconnectionis
equivalenttoaWirelessDistributionSystem(WDS).
CHAP
ChallengeHandshakeAuthenticationProtocolisanalternativeprotocolthatavoidssending
passwordsoverthewirebyusingachallenge/responsetechnique.
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Collision
Interference that occurs when two network devices transmit data at the same time. The network
detects the collision of the two transmitted packets and discards both of them.