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CNet Technology Inc Introduction
3
NAT Firewall Protection
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.
Package Contents
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.