Airlink101 AR685W user manual DoS Denial-of-Service

3.5.2 DoS (Denial-of-Service)

Denial of Service (DoS) is a common attack measure, by transmitting a great amount of data or request to your Internet IP address and server, the Internet connection will become very slow, and server may stop responding because it is not capable to handle too much traffics.

This router has a built-in DoS attack prevention mechanism; when you activate it, the router will stop the DoS attack for you.

Parameter	Description
Ping of Death	Set the threshold of when this DoS prevention mechanism will be
	activated. Please check the box of Ping of Death, and input the
	frequency of threshold (how many packets per second, minute,
	or hour), you can also input the “Burst” value, which means when
	this number of “Ping of Death” packet is received in very short
	time, this DoS prevention mechanism will be activated.
Discard Ping From WAN	Check the box to discard this ping request to the WAN IP
	address of the router.
Port Scan	Many kind of port scan methods are listed here, please check
	one or more DoS attack methods you want to prevent.
Sync Flood	Like Ping of Death, you can set the threshold of when this DoS
	prevention mechanism will be activated.
Advanced	Click this button and you can set advanced settings of the
Settings	DoS prevention method listed above, please see section 3.5.2.1
	‘DoS – Advanced Settings’ below.

3.5.2.1 DoS – Advanced Settings

When you click ‘Advanced Settings’ button in DoS page, the following page will be displayed on your web browser:

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