91Chapter 4 Problem, Meet Solution
Network Connections
MakesuretheEthernetcableispluggedintoyourcomputerandintothenetwork.
CheckthecablesandpowersuppliestoyourEthernethubsandrouters.
IfyouhavetwoormorecomputerssharinganInternetconnection,makesureyour
networkissetupproperly.YouneedtoknowifyourISPprovidesonlyoneIPaddress
orifitprovidesmultipleIPaddresses,oneforeachcomputer.
IfonlyoneIPaddressisused,thenyoumusthavearoutercapableofsharingthe
connection,alsoknownasnetworkaddresstranslation(NAT)or“IPmasquerading.”
Forsetupinformation,checkthedocumentationprovidedwithyourrouteroraskthe
personwhosetupyournetwork.YoucanuseanAirPortbasestationtoshareoneIP
addressamongmultiplecomputers.
ForinformationaboutusinganAirPortbasestation,searchfor“AirPort”intheHelp
CenterorseetheAirPortsupportwebsiteatwww.apple.com/support/airport.
Ifyoucannotresolvetheissueusingthesesteps,contactyourISPornetwork
administrator.
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