DoS Attack Threshold. When the gateway suffers from a continuous attack from the Internet (Which are not normal connections, usually they are lost of connection requests in a short period of time to consume or exhaust the memory of the gateway.) The gateway will drop the traffics from the attack sources instead of treating them like normal traffics. Please select your own threshold bandwidth from the attack source on the Internet by clicking the radio button. (Normally when you have a smaller bandwidth to the Internet, you will have a correspondently smaller DoS Attack Threshold. Otherwise the DoS function will not work properly.)
Block Request from WAN Port. Block request from WAN port feature reinforces your network security by hiding your network ports; this makes it difficult for others to intrude into your network. This feature is enabled by default. If you host servers on your LAN, you cannot enable this function. Otherwise the users from the Internet cannot connect to your servers on the LAN.
Block Ping from WAN port. This feature can prevent your network from being “pinged”, or detected by other Internet users.
Block PPTP, L2TP, IPSec Request. This feature blocks all VPN connection requests from the hosts outside your network.
Use the DMZ host. The DMZ feature allows one local network user to be exposed to the Internet for use of a special-purpose service such as Internet gaming or videoconferencing. DMZ forwards all ports to this computer.