CNet Technology Internet Broadband Gateway CNIG904S Manuel D’Utilisation

CNet Technology Inc                                                                                                                          Introduction

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The firewall protection provided by the Broadband Router is an intrinsic side
effect of NAT (Network Address Translation). All users on the LAN share a
single external IP address. From the external viewpoint, there is no network, only
a single device.

For internal users, the Broadband Router acts as a “transparent proxy server”,
translating the multiple internal IP addresses into a single external IP address.

For external requests, any attempt to connect to local resources are blocked. The
Broadband Router will not “reverse translate” from a global IP address to a local
IP address.

This type of “natural” firewall provides an impregnable barrier against malicious
attacks.

The following items should be included:
•  The Broadband Router Unit
•  Power Adapter
•  Quick Installation Guide
•  CD-ROM containing the on-line manual.
If any of the above items are damaged or missing, please contact your dealer as soon as possi-
ble.