Manufacturer/Support Merit Network, Inc. Available from nic.merit.edu/internet.tools/ppp/mac/ MacPPP for the Macintosh: Introduction MacPPP is a Macintosh System Extension, which enables you to use Point- to-Point Protocol(PPP) to connect and transfer data to and from an internet provider. It is not a stand-alone application, but a utility that enables your other software, such as FTP or Web software, to link your Macintosh to servers on the internet. It requires System 6.0.5 or higher, and MacTCP 1.1(another net-related utility) or higher. It consists primarily of two files: PPP, which goes in your Extensions folder(if you have System 7.0 or higher) and ConfigPPP, which goes in your Control Panels folder(again, with 7.0). Configuring To configure MacPPP, open the Control Panels and select ConfigPPP. Here you can select the port that the modem is attached to and the inactivity timer(Idle Timeout). You can add a new server, or delete or configure the current one. If you click on New, all it will do is ask you for a name for the server. Clicking on Delete asks you if you want to delete this server. Init String and Port Rate These are the recommended settings for using MacPPP with our modems. The Modem Initialization string should be set to AT&F&B1&H1&R2&D0. You will need a hardware handshaking cable to successfully use this init string, otherwise the program will not work correctly. You can not use software(XON/XOFF) flow control with MacPPP. The only flow control settings allowable are None, CTS Only, RTS(DTR) only, and CTS & RTS (DTR). If you choose to use no flow control, which is not suggested, change the Flow Control parameter to None and change the Modem Init String to AT&F&B1&D2. Lastly, the Port Speed settings primarily depend upon your particular machine. If you have an older Macintosh and see errors when setting the Port Speed to 57,600(the maximum allowable setting), then try reducing it to 38,400 or 19,200. Most of the other parameters are dependent upon your individual internet provider's configuration.