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Here are descriptions of every setup items:
Ping of Death (1): 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 Ping is a common and useful tool to know
From WAN (2): 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 (3): 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.
Sync Flood (4): This is another kind of attack, which uses a lot of fake
connection request to consume the memory of your
server, and try to make your server become unusable.
Check this box and the router will filter this kind of traffic
out.
Advanced Click this button and you can set advanced
Settings (5): settings of the DoS prevention method listed above,
please see section 3-3-3-1 ‘DoS – Advanced Settings’
below.
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