SECURE INTERNET COMPATIBLE BI-DIRECTIONAL COMMUNICATION SYSTEM AND USER INTERFACE

摘要

A system including a modem prevents unauthorized Internet access by validating authorization of a User command and inhibiting (425, 430) Internet access by limiting bridging communication between a first port and a second port in response to the validated (410, 415) User command. The system maintains communication with a remote device on a first link via a first port using a plurality of communication protocol layers during a period in which bridging communication is inhibited. The system also prevents Internet access by inhibiting (425, 430) Internet access on a first communication protocole layer of a plurality of protocole layers. The system maintains communication with a remote device on a different second communication protocol layer of the plurality of protocol layers during a period in which communication on the first protocol layer is inhibited.