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YML725 Rev1 NB620W Super-G Wireless Broadband Gateway User Guide
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3.2.4 Advanced Setup >> Firewall
DoS Attack Threshold. When the gateway suffers a continuous attack from the Internet
(Which is considered an abnormal connection that makes many connection requests in a
limited time to consume or exhaust the memory of the gateway.), the gateway will drop this
traffic from the attack sources instead of responding to them like normal internet traffic. Please
select your own threshold bandwidth from the attack source on the Internet by clicking the
radio button (Normally when you have less bandwidth to the Internet, you will have a
correspondingly smaller DoS Attack Threshold.) Otherwise the DoS function will not work
properly.
Block Request from WAN Port. The block request from WAN port feature reinforces your
network security by hiding your network ports; this makes it difficult for others to intrude onto
your network. This feature is enabled by default. However, if you host servers on your LAN,
you cannot enable this feature since it will block users from the Internet from reaching servers
on your 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
hosts outside your network.
Use the DMZ host. The DMZ feature allows one local network user to be exposed to the
Internet to use special-purpose services, such as Internet gaming or videoconferencing. DMZ
forwards all the ports to this computer, exposing it entirely to the Internet. This is not recom-
mended for extended uses.