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ZyXEL Communications Parental Control Gateway HS100/HS100W User Manual

Page 321

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HomeSafe User’s Guide

PPTP C-3

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.