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Sierra Wireless 2170042 Modem User Manual

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IP Manager

3 2170042

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

timeyourmodem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,AirLinkdevelopedIP

ManagertoworkwithaDynamicDNSservertoreceivenotifi

‐

cationfromSierraWirelessAirLinkmodemstotranslatethe

modem’sdynamicIPaddresstoafullyqualifieddomain

name.Thus,youcancontactyourALEOSpoweredAirLink

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

Fully Qualified Domain Name

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

needtoberegisteredwithICANNoranyotherregistry.It

istheresponsibilityofadomaintokeep

trackofitsown

subs.

car54.mydomain.com

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