What is CCP?
CCP stands for Compression Control Protocol which fits into a super-class of PPP protocols known as NCP (Network Control Protocol). CCP is used for establishing, configuring, and disabling data compression algorithms that compress the data payloads within PPP frames. It is defined in RFC 1962.
CCP uses the same packet exchange mechanism as the Link Control Protocol (LCP). Within each of these control frames, theere can be a number of types operations that deal with making configuration requests, ACKs, NAKs, etc. Here is a chart of well-defined compression formats that can be specified. These values go into the option field of a CCP configuration request (see the original RFC to see how this is accomplised):
0x1 Predictor type 1
0x2 Prefictor type 2
0x3 Puddle Jumper
0x10 Hewlett-Packard PPC
0x11 LZS, PPP Stac LZS Compression Protocol
0x12 MPPC, Microsoft Point-To-Point Compression Protocol
MPPE, Microsoft Point-To-Point Encryption Protocol
0x13 FZA, PPP Gandalf FZA Compression Protocol
0x14 V.42bis compression
0x15 BSD, PPP BSD Compression Protocol
0x18 MVRCA, PPP Magnalink Variable Resource Compression Algorithm
0x19 DCE, Data Compression in Data Circuit-Terminating Equipment
0x1A Deflate, PPP Deflate Protocol