ZyXEL p-320w 用户指南
P-320W User’s Guide
Appendix E PPTP
193
Figure 137 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.
Encapsulation, RFC 1701, 1702). The individual calls within a tunnel are distinguished using
the Call ID field in the GRE header.