Air 802 Linux USB?ADG?2 Spécifications télécharger pdf (Page 5)

PACKAGECONTENTS

•USBAdaptor

•Antenna(5dBigain)

•CD(Driver/Utility/User’sManual)

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CHAPTER2:NETWORKPLANNINGANDARCHITECTURE

AD‐HOCVERSUSINFRASTRUCTUREMODE

Wirelesslocalareanetworks(WLAN),asspecificedintheIEEE802.11b/gstandardshavetwo

differentconfigurationmodes:

•Ad‐Hoc

•Infrastructure

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Ad‐HocisagroupofcomputersequippedwitheitherWLANcardsorwirelessUSBadapters.

ThegroupofcomputersiscalledaBasicServiceSet(BSS).Theycommunicatewitheachother

eliminatingtheneedforanaccesspointorrouterdevice.ComputersinAd‐Hocmodecannot

communicatewithcomputersonawirednetworkorconnecttotheInternet.Inour

configurationsoftwareitisreferredtoas,“APmode”.Howeverthisdoesnotimplythatitisan

accesspointinthenormalsense.Ad‐Hocisshowninthediagramontheleftsidebelow.

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InfrastructureiswhereacomputerorothernetworkdeviceequippedwithwithWLANcardor

USBadaptercommunicatesdirectlywithanaccesspointorwirelessrouter.Infrastructure

modeisthenormalmodeofuseformostusers.Itisreferredtoas,“stationmode”inour

configurationsoftware.Aninfrastructureexampleisshowninthediagramontherightabove.

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Air 802 Linux USB?ADG?2 Spécifications Page 5