EnGenius ENH200 - Page 98

thathavetheirMACaddressesaddedtothatnetwork'sMACtablecanaccessthenetwork.
NetworkAddressTranslation(NAT)
AnInternetstandardthatletsaLANuseonesetofIPaddressesforinternaltrafficandasecond
setofaddressesforexternaltraffic.
NetworkTimeProtocol(NTP)
Aprotoc olthatletsdevicessynchronizetheirtimewithatimeserver.NTPusesTCPorUDPport
123bydefault.
Passphrase
AtextstringthatautomaticallygeneratesWEPkeysonwirelessclientadapters.
PowerOverEthernet(PoE)
APoEprovidespowertoPoE‐enableddevicesusingan8‐pinCAT5Ethernetcable,eliminatingthe
needforapowersource.
Preamble
Synchroniz e stransmissionsinaWLAN.ThepreambletypedefinesthelengthoftheCyclic
RedundancyCheckblockforcommunicationbetweenadeviceandroamingwirelessstations.
ProtectedExtensibleAuthenticationProtocol(PEAP)
AuthenticationprotocolofIEEE802.1xusedtosendauthenticationdataandpasswordsover
802.11WLANs.
QualityofService(QoS)
Anetwork’sabilitytodeliverdatawithminimumdelay.QoSalsoref erstothenetworking
methodsusedtoprovidebandwidthforreal‐timemultimediaapplications.
RemoteAuthenticationDial‐InUserService(RADIUS)
Networkingpr otocolthatprovidescentralizedauthentication,authorization,andaccounting
managementforcomputerstoconnectanduseanetworkservice.Becauseofitsbroadsupport
andubiquitousnature,theRADIUSprotocolisoftenusedbyISPsandenterprisestomanage
accesstotheInternetorinternalnetwork s,WLANs,andintegratede‐mailservices.
ServiceSetIdentifier(SSID)
NameofaWLAN.AllwirelessdevicesonaWLANmustusethesameSSIDtocommunicatewith
eachother.
SimpleNetworkManagementProtocol(SNMP)
AnInternet‐standardprotocolformanagingdevicesonIPnetworks.
Snooping
Passivelywatchinganetworkfordata,suchaspassw ords,thatcanbeusedtobenefitahacker.
TemporalKeyIntegrityProtocol(TKIP)
Anencryptionpr otocolthatuses128‐bitkeys.Keysaredynamicallygeneratedanddistributedby
theauthenticationserver.TKIPregularlychangesandrotatesencryptionkeys,withanencryption
keyneverbeingusedtwice.
TransmissionControlProtocol/InternetProtocol(TCP/IP)
Aprotoc olthatallowscommunicationsoverandbetweennetworks.TCP /IPisthebasisfor
Internetcommunications.
WeightedFairQueuing(WFQ)