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Protocol (d):
If the service you need is not listed above, you can create a
new service on your own. Please select TCP or UDP, if
you’re not sure, please select ‘Both’.
Port Range (e):
Please input the port range of new service here. If you want
to specify port 80 to 90, please input ’80-90’; if you want to
apply this rule on a single port, just input the port number,
like ‘80’.
Add (f):
When you finish with all settings, please click ‘Add’ to save
settings, you’ll be brought back to previous menu, and the
rule you just set will appear in current IP filtering table.
If you want to remove all settings in this page, click ‘Reset’ button.
3-3-2 URL Blocking
If you want to prevent computers in a local network from accessing
certain website (like pornography, violence, or anything you want to
block), you can use this function to stop computers in a local network
from accessing the site you define here.
This function is useful for parents and company managers.
Please follow the following instructions to set URL blocking parameters:
Please click ‘Security’ tab at top of web management interface, then click
‘URL Blocking’, and the following message will be displayed on your
web browser:
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Here are descriptions of every setup items:
Enable URL
Check this box to enforce URL Blocking,
Blocking (1):
uncheck it to disable URL Blocking.
URL/Keyword (2):
Input the URL (host name or IP address of website, like
or
), or the
keyword which is contained in URL (like pornography,
cartoon, stock, or anything).
Add (3):
Click ‘Add’ button to add the URL / keyword to the URL /
Keyword filtering table.
Reset (4):
Click ‘Reset’ to remove the value you inputted in
URL/Keyword field.
Current URL
All existing URL/Keywords in filtering
Blocking Table (5):
table will be listed here.
Delete Selected (6):
If you want to delete a specific URL/Keyword entry, check
the ‘select’ box of the MAC address you want to delete, then
click ‘Delete Selected’ button. (You can select more than one
MAC addresses).
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Delete All (7):
If you want to delete all URL/Keyword listed here, please
click ‘Delete All’ button.
Reset (8):
You can also click ‘Reset’ button to unselect all
URL/Keywords.
After you finish with all settings, please click ‘Apply’ (9) button, and the
following message will be displayed on your web browser:
Please click ‘Continue’ to go back to previous setup menu; to continue on
other setup procedures, or click ‘Apply’ to reboot the router so the
settings will take effect (Please wait for about 30 seconds while router is
rebooting).
If you want to reset all settings in this page back to previously-saved
value, please click ‘Cancel’ button.
3-3-3 DoS Attack Prevention
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 of handling too much traffic.
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:
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Please click ‘Security’ tab at the top of web management interface, then
click ‘DoS’, and the following message will be displayed on your web
browser:
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
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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.
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 go back to previous setup menu; to continue on
other setup procedures, or click ‘Apply’ to reboot the router so the
settings will take effect (Please wait for about 30 seconds while router is
rebooting).
If you want to reset all settings in this page back to previously-saved
value, please click ‘Cancel’ button.
3-3-3-1 DoS - Advanced Settings
When you click ‘Advanced’ button in DoS menu, the following message
will be displayed on your web browser:

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