ZyWALL 5/35/70 Series User’s Guide

Figure 444 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.

Appendix G PPTP

702