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Sierra Wireless 20070914 Modem User Manual

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IP Manager

Rev 3.0B Feb.08 62

• DynamicIPaddressesaregrantedonlywhenyourRaven

isconnectedandcanchangeeachtimethemodemrecon

‐

nectstothenetwork.

• StaticIPaddressesaregrantedthesameaddressevery

timeyourRavenisconnectedandarenotinusewhen

yourmodemisnotconnected.

Sincemanycellularproviders,likewire‐basedISPs,donot

offerstaticIPaddressesorstaticaddressaccountscosta

premiumvs.dynamicaccounts,SierraWirelessAirLink

SolutionsdevelopedIPManagertoworkwithaDynamicDNS

servertoreceivenotificationfromSierraWirelessAirLink

modemstotranslatethemodem’sdynamic

IPaddresstoa

fullyqualifieddomainname.Thus,youcancontactyour

RavendirectlyfromtheInternetusingadomainname.

Understanding Domain Names

AdomainnameisanameofaserverordeviceontheInternet

whichisassociatedwithanIPaddress.Similartohowthe

streetaddressofyourhouse isonewaytocontactyouand

yourphonenumberisanother,boththeIPaddressandthe

domainnamecan

beusedtocontactaserverordeviceonthe

Internet.Whilecontactingyouatyourhouseaddressorwith

yourphonenumberemploydifferentmethods,usinga

domainnameinsteadoftheIPaddressactuallyusesthesame

method,justawordbasednameiscommonlyeasierto

remember

formostpeoplethanastringofnumbers.

Understandingthepartsofadomainnamecanhelptounder‐

standhowIP Managerworksandwhatyouneedtobeableto

configurethemodem.Afullyqualifieddomainname(FQDN)

generallyhasseveralparts.

• TopLevelDomain(TLD):TheTLDistheendingsuffixfor

adomainname(.com,.net,.org,etc.)

• CountryCodeTopLevelDomain(ccTLD):Thissuffixis

oftenusedaftertheTLDformostcountriesexcepttheUS

(.ca,.uk,.au,etc.)

• Domainname:ThisisthenameregisteredwithICANN

(InternetCorporationforAssignedNamesandNumbers)

ortheregistryforathecountryoftheccTLD(i.e.ifa

domainispartofthe.caTLD,itwouldberegisteredwith

theCanadiandomainregistry).Itisnecessarytohave

a

nameregisteredbeforeitcanbeused.

• Sub‐domainorservername:Adomainnamecanhave

manysub‐domainorservernamesassociatedwithit.Sub‐

domainsneedtoberegisteredwiththedomain,butdonot

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