Section 3 - Configuration
Firewall Settings
A firewall protects your network from the outside world. The
Enable SPI: 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.
Enable DMZ: If an application has trouble working from behind the router, you can expose one computer to the Internet and run the application on that computer.
Note: Placing a computer in the DMZ may expose that computer to a variety of security risks. Use of this option is only recommended as a last resort.
DMZ IP Address: Specify the IP address of the computer on the LAN that you want to have unrestricted Internet communication. If this computer obtains its IP address automatically using DHCP, be sure to make a static reservation on the Setup > Network Settings page so that the IP address of the DMZ machine does not change.
PPTP: Allows multiple machines on the LAN to connect to their corporate network using PPTP protocol.
IPSEC (VPN): Allows multiple VPN clients to connect to their corporate network using IPSec. Some VPN clients support traversal of IPSec through NAT. This ALG may interfere with the operation of such VPN clients. If you are having trouble connecting with your corporate network, try turning this ALG off. Please check with the system administrator of your corporate network whether your VPN client supports NAT traversal.
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