Getnet Router GR-724W User Manual

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Chapter III    Advanced Functions 
 
3-1 Quality of Service (QoS) 
 
Quality of service provides an efficient way for computers on the network 
to share the internet bandwidth with a promised quality of internet service. 
Without QoS, all computers and devices on the network will compete 
with each other to get internet bandwidth, and some applications which 
require guaranteed bandwidth (like video streaming and network 
telephone) will be affected, therefore an unpleasing result will occur, like 
the interruption of video / audio transfer.   
 
With this function, you can limit the maximum bandwidth or give a 
guaranteed bandwidth for a specific computer, to avoid said unpleasing 
result from happening. 
 
3-1-1 Basic QoS Settings 
 
Please follow the following instructions to set QoS parameters: 
 
Please click ‘Qos’ menu on the left of web management interface and the 
following message will be displayed on your web browser: 
 
 
 
 
 
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Here are descriptions of every setting: 
 
Enable QoS (1):    Check this box to enable QoS function, unselect this 
box if you don’t want to enforce QoS bandwidth 
limitations. 
 
Total Download    You can set the limit of total download   
Bandwidth (2):    bandwidth in kbits. To disable download bandwidth 
limitation, input ‘0’ here. 
 
Total Upload      You can set the limit of total upload 
Bandwidth (3):    bandwidth in kbits. To disable upload bandwidth 
limitation, input ‘0’ here. 
 
Current QoS     All existing QoS rules will be displayed here. 
Table (4):   
 
Add (5):  Click ‘add’ button to add a new QoS rule, see 
section 3-1-2 ‘Add a new QoS rule’ below. 
 
Edit (6):    If you want to modify the content of a specific rule, 
please check the ‘select’ box of the rule you want to 
edit, then click ‘Edit’ button. Only one rule should 
be selected a time! If you didn’t select a rule before 
clicking ‘Edit’ button, you’ll be prompted to add a 
new rule. 
 
Delete (7):      You can delete selected rules by clicking this 
    button. You can select one or more rules to delete by 
check the ‘select’ the box of the rule(s) you want to 
delete a time. If the QoS table is empty, this button 
will be grayed out and can not be clicked. 
 
Delete All (8):    By clicking this button, you can delete all rules 
currently in the QoS table. If the QoS table is empty, 
this button will be grayed out and can not be 
clicked.  
						

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Move Up (9):    You can pull up the priority of the QoS rule you 
selected by clicking this button. 
 
Move Down (10):    You can lower the priority of the QoS rule you 
selected by clicking this button. 
 
After you finish with all settings, please click ‘Apply’ (11) button and the 
following message will be displayed on your web browser: 
 
 
 
Please click ‘Continue’ to 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. 
 
 
3-1-2 Add a new QoS rule 
 
After you click ‘Add’ button in QoS menu, the following message will 
appear:  
						

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Here are descriptions of every setup items: 
 
Rule Name (a):    Please give a name to this QoS rule (up to 15 
alphanumerical characters) 
 
Bandwidth (b):    Set the bandwidth limitation of this QoS rule. You 
have to select the data direction of this rule (Upload 
of 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        Specify the local (source) IP address 
Address (c):     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        Please input the range of local (source) 
Range (d):    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’. 
 a 
b 
c 
d 
e 
f 
g 
h 
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Remote IP        Specify the remote (destination) IP address 
Address: (e):    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      Please input the range of remote (destination) 
Range (f):  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 (g):    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 (h):      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 seems to work. 
 
After you finish with all settings, please click ‘save’ button (i), 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 address translations solve the problem if sharing a single IP 
address to multiple computers. 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 following instructions to set NAT parameters: 
 
 
3-2-1 Basic NAT Settings (Enable or disable NAT function) 
 
Please 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 
function’ (1); to disable, please select ‘Disable’. 
 
After you made the selection, please click ‘Apply’ button (2) and the 
following message will be displayed on your web browser: 
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Please click ‘Continue’ to 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 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 ‘NAT’ menu on the left of web management interface, then 
click ‘Port Forwarding’, and the following message will be displayed on 
your web browser: 
 
 
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Here are descriptions of every setup items: 
 
Enable Port      Check this box to enable port mapping, 
Forwarding (1):    and uncheck this box to disable port mapping. 
 
Private IP (2):    Input the IP address of the computer on local 
network which provides internet service. 
 
Computer Name (3): Pull down the menu and all the computers 
connected to the router will be listed here. You can 
easily to select the computer name without checking 
the IP address of the computer. 
 
Type (4):    Select the type of connection, TCP or UDP. If you’re 
not sure, please select ‘Both’. 
 
Port Range (5):    Input the starting port number in the left field, and 
input the ending port number in the right field. If 
you only want to redirect a single port number, just 
fill the port number in the left field. 
 
Comment (6):    Please input any text to describe this mapping, up to 
16 alphanumerical characters. 
 
Add (7):        Add the mapping to port forwarding table. 
 
Reset (8):        Remove all inputted values. 
 
Port Forwarding    All existing port forwarding mappings will 
Table (9):      be displayed here. 
 
Delete (10):      Please select a port forwarding mapping by 
    clicking the ‘Select’ box of the mapping, then click 
‘Delete Selected’ button to remove the mapping. If 
there’s no existing mapping, this button will be 
grayed out. 
  
						

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Delete All (11):     Delete all mappings existed in virtual server table. 
 
Reset (12):       Unselect all mappings. 
 
After you finish with all settings, please click ‘Apply’ (13) button and the 
following message will be displayed on your web browser: 
 
 
 
Please click ‘Continue’ to 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. 
 
 
3-2-3 Virtual Server 
 
This function allows you to redirect a port on Internet IP address (on 
WAN port) to a specified port of an IP address on local network, so you 
can setup an Internet service on the computer on local network, without 
exposing it on Internet directly. You can also build many sets of port 
redirection, to provide many different Internet services on different local 
computers via a single Internet IP address. 
 
Please click ‘NAT’ menu on the left of web management interface, then 
click ‘Virtual Server’, and the following message will be displayed on 
your web browser: 
  
						

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Here are descriptions of every setup items: 
 
Enable Virtual      Check this box to enable virtual server, 
Server (1):        and uncheck this box to disable virtual server. 
 
Private IP (2):      Input the IP address of the computer which 
     provides Internet service. 
 
Computer Name (3): Pull down the menu and all the computers 
connected to the router will be listed here. You can 
easily to select the computer name without checking 
the IP address of the computer. 
 
Private Port (4):    Input the port number of the IP address 
     which provides Internet service. 
 
Type (5):    Select the type of connection, TCP or UDP. If you’re 
not sure, please select ‘Both’. 
 
Public Port (6):    Please select the port number of Internet IP address 
which will be redirected to the port number of local 
IP address defined above. 
 
Comment (7):    Please input any text to describe this mapping, up to 
16 alphanumerical characters. 
 
Add (8):        Add the mapping to virtual server table. 
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