|  | 4.1 | PPP
| 4.1.1 | The need for PPP

In the late 1980s, Serial Line Internet Protocol (SLIP) was limiting the Internet's growth. PPP was created to solve remote Internet connectivity problems. Additionally, PPP was needed to be able to dynamically assign IP addresses and allow for use of multiple protocols. PPP provides router-to-router and host-to-network connections over both synchronous and asynchronous circuits. PPP is the most widely used and most popular WAN protocol because it offers all the following features: Control of data link setup Provides for dynamic assignment of IP addresses Network protocol multiplexing Link configuration and link quality testing Error detection Negotiation options for capabilities such as network-layer address negotiation and data compression negotiations
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