Setting up PPP and KPPPD

“PPP (Point to Point Protocol) is used to connect the Red hat Linux system to the ISP through the modem. PPP is faster and
more efficient. It uses the TCP/IP network protocol. SLIP(Serial Line Interface Protocol) is also used as the replacement but
it is not as successful as PPP. Most of the ISP’s prefer PPP.” More at FreeOS.com.