PPP - point-to-point protocol
RFCs

1471 - ppp's link control protocol
1547 - ppp requirements
1661 - point-to-point protocol
1332 - IP control protocol

HOWTOs
Linux PPP HOWTO - text
Linux PPP HOWTO - html

Software

Articles

Further Information
How to hook up ppp in linux
man page for pppd command



The point-to-point protocol is a data-link protocol. It is the protocol that provides dial-up modem connections from residential internet users to their ISPs.