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: As 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: As set in default setting, it activates your SPI function.
~ Disabled: It disables the SPI function.
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