User's Manual

User’s Manual
75
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.
Please follow the following instructions to set DoS prevention parameters:
Please click ‘Firewall’ menu on the left of web management interface, then click ‘DoS’, and
the following message will be displayed on your web browser:
Ping of Death:
Ping of Death is a special packet, and it will cause certain computer to stop responding.
Check this box and the router will filter this kind of packet out.
Discard Ping From WAN:
Ping is a common and useful tool to know the connection status of a specified remote
network device, but some malicious intruder will try to fill your network bandwidth with a lot
of PING request data packet, to make your internet connection become very slow, even
unusable. Check this box and the router will ignore all inbound PING request, but when you
activate this function, you will not be able to ping your own router from internet, too.
Port Scan:
Some malicious intruder will try to use a ‘port scanner’ to know how many ports of your
Internet IP address are open, and they can collect a lot of valuable information by doing so.
Check this box and the router will block all traffics which are trying to scan your Internet IP
address.