The basic PPP configuration involves a computer, a modem, and RS-232 telephone lines. However, before you configure, you need to verify whether the hardware you selected can support PPP. This section describes the hardware requirements for PPP.
Modem requirements - To run PPP, each endpoint machine must have a modem that supports at least 9600 bps or faster bidirectional connections. Such a modem implements the V.32 or V.32bis specification.
Serial port selection (for dial-in servers only) - You can configure either serial port A or serial port B on most CPUs for PPP usage. Use the Solaris Serial Port Manager to initialize the ports on the dial-in server. System Administration Guide contains instructions for selecting the appropriate port. If you have additional serial cards installed, you can also use their serial ports for PPP connections.
Disk space - You must have 300 Kbytes of free space in /usr to install PPP.