Billion BIPAC-7500GL User Manual page 61

Billion BIPAC-7500G / 7500GL 802.11g ADSL VPN Firewall Router with 3DES Accelerator
MAC Filter rules: To prevent unauthorized computers accessing the Internet.
URL Filter: To block PCs on your local network from unwanted websites.
You can find six items under the Firewall section: General Settings, Packet Filter, Intrusion
Detection, MAC Address Filter, URL Filter and Firewall Log.
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Chapter 4:Configuration