In networking, the Point-to-Point Protocol, or PPP, is a data link protocol commonly used to establish a direct connection between two nodes over serial cable, phone line, trunk line, cellular telephone, specialized radio links, or fiber optic links. (read more on Wikipedia).
If you access the Internet through a Modem connected to a dial-up phone line (including mobile Modems), then the connection is negotiated using PPP.
A PPP interface is managed by the PPP daemon (pppd) with comes in the ppp package. Thus, for the user, configuring a PPP interface means configuring pppd.
See also
Configuration : DialupConf and wvdial
Sharing : Internet Connection Sharing
PPPoE PPP-Over-Ethernet (for DSL modems, etc.)
External links
- About PPP :
Wikipedia's Point-to-Point_Protocol page
How-Tos