Point-to-Point Protocol
PPP was devised to fix some of the limitations of SLIP. The major distinctions are that PPP contains a frame-check sequence and it also defines a conversational exchange between two peers before they may exchange data frames. PPP is really a set of protocols supporting remote access. Included in the PPP protocol suite is a Link Control Protocol (RFC1661), authentication, and a network control protocol. A PPP connection is established in three steps:
1. |
Link Establishment. Here the connection is made and a number of parameters are exchanged, including the maximum transfer unit size (1500 bytes by default), authentication type, and bits specifying whether protocol field compression should be used.
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2. | Authentication. PPP ... |
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