Sierra Wireless PinPoint X Guía de usuario descargar pdf (Pagina 14)

Introduction to the PinPoint X

Rev 4.0 Oct.09 8

Virtual serial port

ThePinPointXsupportsonevirtualserialport overUSB.This

VSPcanbeused,forexample,tosendATcommands,ortorun

manyserialbasedapplicationssuchasHyperTerminal

Networking

IPSec

TheIPprotocolthatdrivestheInternetisinherentlyinsecure.

InternetProtocolSecurity(IPSec),whichisastandards‐based

protocol,securescommunicationsofIPpacketsoverpublic

networks.

IPSecisacommonnetworklayersecuritycontrolandisused

tocreateavirtualprivatenetwork(VPN).

TheadvantagesoftheIPSecfeatureincludes:

• DataProtection:DataContentConfidentialityallowsusers

toprotecttheirdatafromanyunauthorizedview,because

thedataisencrypted(encryptionalgorithmsareused).

• AccessControl:AccessControlimpliesasecurityservice

thatpreventsunauthorizeduseofaSecurityGateway,a

networkbehindagatewayorbandwidthonthatnetwork.

• DataOriginAuthentication:DataOriginAuthentication

verifiestheactualsender,thu seliminatingthepossibility

offorgingtheactualsender’sidentificationbyathird‐

party.

• DataIntegrity:DataIntegrityAuthenticationallowsboth

endsofthecommunicationchanneltoconfirmthatthe

originaldatasenthasbeenreceivedastransmitted,

withoutbeingtamperedwithintransit.Thisisachieved

byusingauthenticationalgorithmsandtheiroutputs.

TheIPSecarchitecturemodelincludestheSierraWireless

AirLinkgatewayasaremotegatewayatoneendcommuni

‐

cating,throughaVPNtunnel,withaVPNgatewayatthe

otherend.TheremotegatewayisconnectedtoaRemote

networkandtheVPNisconnectedtotheLocalnetwork.The

communicationofdataissecurethroughtheIPSecprotocols.

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Sierra Wireless PinPoint X Guía de usuario Pagina 14