What is SLIP/PPP?
SLIP and PPP are protocols, or sets of rules, that support TCP/IP over
serial cables such as telephone lines. (TCP/IP is the set of protocols used on the
Internet). Therefore, SLIP and PPP are two ways to connect to the Internet.
SLIP stands for Serial Line Internet Protocol and PPP stands for Point-to-Point Protocol.
SLIP is the earlier technology; PPP is newer and has more capabilities. However, they
are similar in how they work, and the two protocols are often referred to together -
SLIP/PPP - where the "/" implies an "or".