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Mac OS X: How to connect to the Internet with PPP and a modem  

Mac OS X: How to connect to the Internet with PPP (dial-up access) and a modem
Get this information from your Internet service provider (DSLExtreme):
  • Username and password (unless you chose them yourself)
  • Dial-up access phone number(s)
  • Domain Name System (DNS) server addresses
  • Whether you should choose to configure IP information via PPP or manually. If you don't know, assume you'll use PPP. Manual IP configuration is uncommon for dial-up connections.
Important : Write down the information that DSLExtreme gives you and keep it in a safe place. You'll probably need it again. Apple does not keep a record of the settings DSLExtreme gives to you.
Configure Mac OS X for Dialup
  1. From the Apple menu, choose System Preferences .
  2. From the View menu, choose Network .
  3. Choose Internal Modem from the Show pop-up menu (or the " Configure " pop-up menu prior to Mac OS X 10.1). If your computer does not have a built-in modem, select your external modem.
  4. Click the PPP tab.
  5. Type the information DSLExtreme gave you into the matching fields. Your username goes in the Account Name field. If you want the other users of this computer to use the same connection, select the "Save password" option.
  6. Click the TCP/IP tab.
  7. Choose either PPP or Manually from the Configure pop-up menu. If configuring manually, type the IP address in the matching field.
  8. Type the DNS addresses in their field.
  9. Click Apply Now.
Connect and verify
  1. Open Internet Connect. It's in the Applications folder.
  2. Be sure the Configuration pop-up menu is set to your modem.
  3. Click the Connect button.
  4. Once Internet Connect says you're connected, open a Web browser or other Internet (TCP/IP) application to make sure your connection works.
Mac OS X: How to Disable or Enable Automatic Modem (PPP) Connections
To turn on or turn off automatic dial-up (PPP) Internet connections
  1. Choose System Preferences from the Apple menu.
  2. Click Network.
  3. Choose your modem or other dial-up device from the Show pop-up menu.
Note: The Show menu is named "Configure" prior to Mac OS X 10.1.
  1. Click the PPP tab.
  2. Click PPP Options.
  3. Click the checkbox to select or deselect the "Connect automatically when starting TCP/IP applications" option.
  4. Click OK.
  5. Click Save. 
With automatic connection disabled, Mac OS X will prompt you to connect to the Internet when necessary. You then connect using the Internet Connect application.
Additional steps for AirPort
  1. Disconnect from the Internet.
  2. Unplug the phone line from your computer and connect it to the base station's modem port.
  3. Use the AirPort Setup Assistant utility (/Applications/Utilities/) to copy the computer's settings to the base station.


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