Configuring the Point-to-Point Protocol (PPP)

Configuring PPP asynchronous serial driver support

To implement PPP support for a third-party smart serial device on an existing system:

Log in as root.
Create an /etc/pppstack file (see the new pppstack(SFF) manual page) that defines the third-party vendor's driver and associated STREAMS module(s).
When the PPP daemon (see pppd(ADMN)) configures a PPP interface, it will configure the PPP stack to use the third-party driver and modules defined in /etc/pppstack. If a serial device does not have an entry in /etc/pppstack, the PPP daemon uses the SCO PPP stack instead.
Send a SIGHUP signal to the PPP daemon to make it re-read its configuration files:

kill -HUP `cat /etc/pppd.pid`

NOTE: The installation procedure for the third-party driver and PPP stack software may perform some or all of these steps for you. Refer to the documentation that was provided with the smart serial port device hardware for more information.