Specifications

59Chapter 4 Problem,MeetSolution
4 ChooseaninterfaceforthePPPoEservicefromtheEthernetpop-upmenu.Choose
Ethernetifyouareconnectingtoawirednetwork,orAirPortifyouareconnectingtoa
wirelessnetwork.
5 Entertheinformationyoureceivedfromyourserviceprovider,suchastheaccount
name,password,andPPPoEservicename(ifyourserviceproviderrequiresit).
6 ClickApplytomakethesettingsactive.
Network Connections
MakesuretheEthernetcableisconnectedtoyourMacBookProandtothenetwork.
CheckthecablesandpowersuppliestoyourEthernethubsandrouters.
IfyouhavetwoormorecomputerssharinganInternetconnection,besurethatyour
networkissetupproperly.YouneedtoknowifyourISPprovidesonlyoneIPaddress
orifitprovidesmultipleIPaddresses,oneforeachcomputer.
IfonlyoneIPaddressisprovided,thenyoumusthavearoutercapableofsharingthe
connection,alsoknownasnetworkaddresstranslation(NAT)or“IPmasquerading.”
Forsetupinformation,checkthedocumentationprovidedwithyourrouterorask
thepersonwhosetupyournetwork.YoucanuseanAirPortbasestationtoshare
oneIPaddressamongmultiplecomputers.ForinformationaboutusinganAirPort
basestation,checkMacHelporgototheAppleAirPortwebsiteat
www.apple.com/support/airport.
Ifyoucannotresolvetheissueusingthesesteps,contactyourISPornetwork
administrator.