User's Manual

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10 SECURITY SETTINGS
There are two submenus under the Security menu: Basic Security, and
Advanced Security. Click any of them, and you will be able to configure the
corresponding function.
BASIC SECURITY
Choose menu “Security->Basic Security”, you can configure the basic
security in the following screen.
Figure 70: Basic Security Settings
◆ Firewall - A firewall protects your network from the outside world.
Here you can enable or disable the Router’s firewall.
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SPI Firewall - SPI (Stateful Packet Inspection, also known as
dynamic packet filtering) helps to prevent cyber attacks by tracking
more state per session. It validates that the traffic passing through
the session conforms to the protocol. SPI Firewall is enabled by
factory default. If you want all the computers on the LAN exposed
to the outside world, you can disable it.
◆ VPN - VPN Passthrough must be enabled if you want to allow VPN
tunnels using IPSec, PPTP, or L2TP protocols to pass through the
Router’s firewall.