Prestige 334 User’s Guide
Appendix C PPTP
336
Figure 187
Example Message Exchange between Computer and an ANT
PPP Data Connection
The PPP frames are tunneled between the PNS and PAC over GRE (General Routing
Encapsulation, RFC 1701, 1702). The individual calls within a tunnel are distinguished using
the
Call ID
field in the GRE header.