Advanced Setup; Firewall - Billion BiPAC 5200W User Manual

4.3 Advanced Setup

4.3.1 Firewall

Your router includes a firewall for controlling Internet access from your LAN and helping to prevent
attacks from hackers. In addition to this, when using NAT (Network Address Translation) the router
acts as a "natural" Internet firewall, since all PCs on your LAN use private IP addresses that cannot be
directly accessed from the Internet.
Firewall: to automatically detect and block Denial of Service (DoS) attacks, such as Ping of Death,
SYN Flood, Port Scan and Land Attack.
Enabled: Set in default setting, it activates your firewall function.
Disabled: It disables the firewall function.
SPI: If you enabled SPI, all traffics initiated from WAN would be blocked, including DMZ, Virtual
Server, and ACL WAN side.
Enabled: Set in default setting, it activates your SPI function.
Disabled: It disables the SPI function.
Press SAVE to apply your settings.
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