Dos (Denial-Of-Service) - Airlink101 AR660W3G User Manual

Parameter
IPsec pass through
PPTP pass through
L2TP pass through

3.5.3 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
Ping of Death
Discard Ping From WAN
Port Scan
Description
Check this box and the router will enable IPsec packets
pass through the router for VPN connection.
Check this box and the router will enable PPTP packets
pass through the router for VPN connection
Check this box and the router will enable L2TP packets
pass through the router for VPN connection.
Description
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.
Check the box to discard this ping request to the WAN IP
address of the router.
Many kind of port scan methods are listed here, please check
one or more DoS attack methods you want to prevent.
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