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When you finished with the settings in this page, you can click ‘Apply’ button to save
changes you made in this page, or you can click ‘Cancel’ to discard changes. After you click
‘Apply’ button, you’ll see the following message:
Please click ‘Apply’ to save changes you made and restart the broadband router, this
requires about 30 seconds and the broadband router will stop responding (this is normal
and is not malfunction). You can reconnect to this broadband router and continue on other
settings later.
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3
6
2 URL Blocking
If you want to prevent computers in local network from accessing certain website (like
pornography, violence, or anything you want to block), you can use this function to stop
computers in local network from accessing the site you defined here.
This function is useful for parents and company managers.
Here are descriptions of every setup item:
Item Name
Description
Enable URL Blocking
Check this box to enforce URL Blocking,
uncheck it to disable URL Blocking.
URL/Keyword
Input the URL (host name or IP address of
website, like
http://www.blocked
site.com
or
), or the keyword which is
contained in URL (like pornography, cartoon,
stock, or anything).
Add
Click ‘Add’ button to add the URL / keyword to
the URL / Keyword filtering table.
Reset
Click ‘Reset’ to remove the value you inputted
in URL/Keyword field.
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All existing URLs will be displayed in ‘Current URL Blocking Table’:
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 URL/Keyword). If you want to delete all URL/Keyword listed here, please click ‘Delete
All’ button, or you can also click ‘Reset’ button to unselect all URL/Keywords.
When you finished with the settings in this page, you can click ‘Apply’ button to save
changes you made in this page, or you can click ‘Cancel’ to discard changes. After you click
‘Apply’ button, you’ll see the following message:
Please click ‘Apply’ to save changes you made and restart the broadband router, this
requires about 30 seconds and the broadband router will stop responding (this is normal
and is not malfunction). You can reconnect to this broadband router and continue on other
settings later.
Page 169 / 190
3
6
3 DoS
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:
Here lists four kinds of DoS attacks, please select the type of DoS attack you wish this
broadband router to protect, and you can select multiple types of attacks.
The descriptions of every DoS attack is listed below:
Item Name
Description
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
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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.
Sync Flood
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.
If you need to specify the details of every DoS attack, please click ‘Advanced Settings’
button, and the following settings will appear:

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