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browser:
Here are descriptions of each setup item:
Ping of Death (1):
Ping of Death is a special packet, and it will cause
certain computers 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 intruders will try to fill your
network bandwidth with a lot of PING request data
packets to make your internet connection become very
slow, even unusable. Check this box and the router will
ignore all inbound PING requests (but when you activate
this function, you will not be able to ping your own
router from Internet either).
Port Scan (3):
Some malicious intruder may 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 trying to scan your Internet IP address.
Sync Flood (4):
This is another kind of attack, which uses a lot of fake
connection requests to consume the memory of your
server and try to make your server become unusable.
Check this box and the router will filter out this kind of
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traffic.
Advanced
Click this button and you can set the advanced
Settings (5):
settings of the DoS prevention method listed above
(please see section 9.3.3.1 ‘DoS – Advanced Settings’
below).
After you finish with all settings, please click ‘Apply’ (6) button and the
following message will be displayed on your web browser:
Please click ‘Continue’ to return to the previous setup menu and continue with
other setup procedures, or click ‘Apply’ to reboot the router so the settings will
take effect (Please wait about 40 seconds for router to reboot).
If you want to reset all settings on this page back to their previously-saved
values, please click the ‘Cancel’ button.
9.3.3.1 DoS
Advanced Settings
When you click the ‘Advanced Settings’ button in the DoS menu, the
following message will be displayed on your web browser:
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Here are descriptions of each setup item:
Ping of Death (a):
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
Check the box to activate this DoS
From WAN (b):
prevention mechanism.
Port Scan (c):
Many kinds of port scan methods are listed here; please
check one or more DoS attack methods you want to
prevent.
Sync Flood (d):
Like Ping of Death, you can set the threshold of when
this DoS prevention mechanism will be activated.
After you finish with all settings, please click ‘Apply’ (e) button and the
following message will be displayed on your web browser:
a
b
c
d
e
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Please click ‘Continue’ to return to the previous setup menu and continue with
other setup procedures, or click ‘Apply’ to reboot the router so the settings will
take effect (Please wait about 40 seconds for router to reboot).
If you want to reset all settings on this page back to their previously-saved
values, please click the ‘Cancel’ button.
9.3.4 Demilitarized Zone (DMZ)
Demilitarized Zone (DMZ) refers to a special area in your local network. All
computers in this area use private IP addresses, too. But these private IP
addresses are mapped to a certain Internet IP address, so that other people on
Internet can fully access those computers in DMZ.
Please follow these instructions to set DMZ parameters:
Please click ‘Firewall’ menu on the left of the web management interface, then
click ‘DMZ’, and the following message will be displayed on your web
browser:
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Here are descriptions of each setup item:
Enable DMZ (1):
Check this box to enable DMZ function, uncheck this box
to disable DMZ function.
Public IP
You can select ‘Dynamic IP’ or ‘Static IP’ here.
address (2):
If you select ‘Dynamic IP’, you have to select an Internet
connection session from the dropdown menu; if you
select ‘Static IP’, please input the IP address that you
want to map to a specific private IP address.
Client PC IP
Please input the private IP address that the
address (3):
Internet IP address will be mapped to.
Computer Name (4): Pull down the menu and all the computers connected to
the router will be listed here. You can easily select the
computer name without checking the IP address of the
computer.
Add (5):
Click ‘Add’ button to add the public IP address and
associated private IP address to the DMZ table.
Reset (6):
Click ‘Clear’ to remove the value you inputted in Public
IP address and Client PC IP address field.
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