The Point to Point Protocol for Linux
The ppp package contains the PPP (Point-to-Point Protocol) daemon,
pppd, additional PPP utilities, documentation, and sample files. PPP
provides a method for transmitting IP and IPX datagrams over serial
point-to-point links, for example over a modem. The PPP daemon handles
the details of setting up a PPP link including configuring the network
interface and performing the PPP negotiations.