NetComm NB600W manual Advanced Setup Firewall

3.2.4 Advanced Setup > Firewall

Field	Description
DoS Attack Threshold	When the gateway suffers a continuous attack from
	the Internet (Which is considered an abnormal con-
	nection 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 thresh-
	old 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.
Block UPnP Request from WAN Port	This feature blocks all UPnP requests from hosts
	outside your network.

NB600W Super-G Wireless Broadband Gateway User Guide	YML775 Rev1
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