8 C HAPTER 1: B EFORE YOU B EGINhard disk space; (2) applications running simultaneouslywith the modem which use varying amounts of yourcomputer’s resources; (3) the capacity of the Internetservice you order from your provider; (4) changing networktraffic levels depending when and where you go online.Contacting Your Local Cable ProviderIn order to use your cable modem, you need to set up anInternet access account with your local cable provider.Before contacting your cable provider to setup an account,have the following information handy:n The modem’s serial number, model number, and MediaAccess Control (MAC) address. The serial numberappears on the white bar code label on the back of themodem and consists of 10 characters preceded by thetext “SN=”. In the following example label image, theserial number is 6LZ1377410. Your cable modem’smodel number is 3CR29220. In the following examplelabel image, the model number is 20-0591-000. TheMAC address appears on the white bar code label onthe back of the modem and consists of 12 characterspreceded by the text “EA =”. In the following examplelabel image, the MAC address is 00104B377410. Writeall three of these numbers in the following blanks forfuture reference.Serial number: SN= __________________Model number: 3CR29220MAC address: EA = __________________You should now contact your local cable provider and verifythe following:n The cable service to your home supports two-way cablemodem access. If your cable company does not provide