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Macintosh MacTCP and FreePPP Setup

MacTCP is the older "classic" TCP/IP architecture supported by Apple. Apple has replaced MacTCP with Open Transport as of Mac OS 8.0. If you are still using an Apple OS that requires you to run MacTCP you should be using version 2.0.6 of MacTCP. You can find out if you have MacTCP installed by opening your Control Panels folder and looking for an icon named "MacTCP". Check the Apple website for more information.

Step 1 - Install MacTCP

MacTCP is for-sale System Software and included with System 7.x. If you are running MacOS 7.x and do not want to utilize Open Transport please ensure that you are running MacTCP version 2.0.6. You can download and install the MacTCP 2.0.4 and MacTCP 2.0.6 updaters from Follow the instructions (included from Apple) for installing MacTCP.

Step 2 - Download and Install FreePPP

Download and install FreePPP version 1.0.5. Follow the instructions (included) for installing FreePPP.

Step 3 - Configure MacTCP

Open your MacTCP Control Panel.
  • The PPP icon should be visible in the window; select it.

Click on the "More" button

  • Select "Server" in the "Obtain Address" area.
  • Add the following three entries in the Domain Name Server Information area:           Default

  • The subnet mask, class of address, and gateway address are obtained at the same time the Macintosh gets its IP address.
  • Close the MacTCP Control Panel by clicking the "OK" button.

Step 4 - Configure FreePPP

Open the Config PPP Control Panel

  • For "Port Name" select the port to which the modem is plugged in.
  • "Idle Timeout" should be set to "None".
  • "Echo Interval" should be "off".
  • "Disable Auto Connect" should be checked (FreePPP specific).
  • "Terminal Window" should not be checked.
  • "Hangup on Close" and "Quiet Mode" should be checked.
  • "Long Re-dial Delay" should not be checked (FreePPP specific).
  • Click on the "Config" button.

Configure the PPP Control Panel

  • Type "NetGate" in the "PPP Server Name:" field.
  • Set the "Port Speed" to the fastest DTE speed the modem supports. Usually 38400 or 57600.
  • Set "Flow Control:" to "CTS & RTS (DTR)".
  • Enter the phone number of your local access point in the "Phone num" field.
  • Set "Modem Init" according to "MacPPP Modem Initialization Strings" chart. If the modem is not on chart, the string needs to turn on hardware handshaking, error correction (V.42), data compression (V.42bis), and to assume DTR is on. AT&F&D0 or AT&F1&D0 often work when in doubt.
  • "Modem connect timeout:" should be set to 90 seconds

Click on the "Connect Script" button

  • The "Wait timeout:" should be set to 40 seconds.
  • Make sure all of the "Out" radio buttons are selected.
  • Make sure there is no text in any of the text fields.
  • Make sure none of the "<CR>" check boxes are checked.
  • Click on the "OK" button.

Click on the "Authentication" button

  • Put your username in the "Auth. ID:" field.
  • Put your password in the "Password:" field.
  • Click the "OK" button. Click the "Done" button.

Step 5 - Try to Connect to the Internet

  • Restart your Macintosh and try connecting.
  • Open the PPP Control Panel.
  • Click on the "Open" button to connect to NetGate.
  • Click on the "Close" button to disconnect from NetGate.