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Page 101 / 144 Scroll up to view Page 96 - 100
DG-BR4000NG User Manual
101
3-1-2 Add a new QoS rule
After you click ‘Add’ button in QoS menu, the following message will appear:
Here is the description of every setup item:
Parameter
Description
Rule Name
Please give a name to this QoS rule (upto
15 alphanumerical characters)
Bandwidth
Set the bandwidth limitation of this QoS
rule. You have to select the data direction
of this rule (Upload or Download), and
the speed of bandwidth limitation in
Kbps, then select the type of QoS:
‘guarantee’ (guaranteed usable
bandwidth for this rule) or ‘max’ (set the
maximum bandwidth for the application
allowed by this rule).
Local IP Address
Specify the local (source) IP address
that will be affected by this rule. Please
input the starting IP address in the left
field, and input the end IP address in the
right field to define a range of IP
addresses, or just input the IP address in
the left field to define a single IP
address.
Local Port Range
Please input the range of local (source)
port number that will be affected by this
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rule. If you want to apply this rule on
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’.
Remote IP Address:
Specify
the
remote
(destination)
IP
address that will be affected by this rule.
Please input the starting IP address in the
left field, and input the end IP address in
the right field to define a range of IP
addresses, or just input the IP address in
the left field to define a single IP
address.
Remote Port Range
Please input the range of remote
(destination) port number that will be
affected by this rule. If you want to
apply this rule on 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’.
If
the
remote
(destination) IP address and /or port
number is universal, just leave it blank.
Traffic Type
Please select the traffic type of this rule,
available
options
are
None,
SMTP,
HTTP, POP3 and FTP. You can select a
specific traffic type for this rule, if you
want to make this rule as a IP address
based rule (Apply the limitation on all
traffics from / to the specified IP address
/ port number), select ‘None’.
Protocol
Please select the protocol type of this
rule, available options are TCP and UDP.
If you don’t know what protocol your
application uses, please try ‘TCP’ first,
and switch to ‘UDP’ if this rule doesn’t
seem to work.
After you finish with all settings, please click ‘save’ button , you’ll be brought back
to previous menu, and the rule you just set will appear in current QoS table; if you
did anything wrong, you’ll get an error message when you click ‘Save’ button,
please correct your input by the instructions given by the error message.
If you want to erase all values you just entered. Click ‘Reset’
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3-2 Network Address Translation (NAT)
Network addresses translations means sharing a single IP address to multiple
computers in a network. Without NAT, all computers must be assigned with a valid
Internet IP address to get connected to Internet, but Internet service providers only
provide very few IP addresses to every user. Therefore it’s necessary to use NAT
technology to share a single Internet IP address to multiple computers on local
network, so everyone can get connected to Internet.
Please follow the instructions mentioned below to set NAT parameters:
3-2-1 Basic NAT Settings (Enable or disable NAT function)
Please click ‘General Setup’ menu on the left of web management interface, then
click ‘NAT’ menu on the left of web management interface, and the following
message will be displayed on your web browser
To enable NAT function, please select ‘Enable’ for enable ‘NAT Module’; to disable
the module, please select ‘Disable’.
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After you make the selection, please click ‘Apply’ 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).
3-2-2 Port Forwarding
This function allows you to redirect a single port or consecutive ports of Internet IP
address to the same port of the IP address on a local network. The port number(s) of
Internet IP address and private IP address (the IP address on local network) must be
the same. If the port number of Internet IP address and private IP address is
different, please use ‘Virtual Server’ function, described in next section.
Please click ‘Port Forwarding’ menu on the left of web management interface, under
the ‘NAT’ tab and the following message will be displayed on your web browser
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105
Here is the description of every setup item:
Parameter
Description
Enable Port Forwarding
Check this box to enable port mapping,
and uncheck this box to disable port
mapping.
Private IP
Input the IP address of the computer on
local network which provides internet
service.
Computer Name
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.
Type
Select the type of connection, TCP or
UDP. If you’re not sure, please select
‘Both’.
Port Range
Input the starting port number in the
upper field, and input the ending port
number in the bottom field. If you only
want to redirect a single port number,
just fill the port number in the upper
field.
Comment
Please input any text to describe this
mapping, up to 16 alphanumerical
characters.
Add
Add the mapping to port forwarding
table.
Reset
Remove all inputted values.
Current Port Forwarding Table
All existing port forwarding mappings
will be displayed here.
Delete
Please select a port forwarding mapping
by clicking the ‘Select’ box of the
mapping, then click ‘Delete ’
button to remove the mapping. If there’s
no existing mapping, this button will be
grayed out.
Delete All
Deletes all mappings existing in the
current port forwarding table.
Reset
Unselect all mappings.

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