Tenda Router W330R User Manual

							
 Wireless-N Broadband Router   
WAN, which will bring 
communication halt. The 
port triggering is used to 
define triggering rules. So 
when clients have access 
to the server, the device 
will open the port through 
which the server sends the 
request to client. 
 
IP Range:  The internal IP 
address range for 
requesting external server 
application. 
 
Trigger Port:  The port 
range through which the 
internal clients send 
request traffics to external 
server with the range of 
1 ～65535. Note that the 
low number first and two 
blanks can keep the same 
number if needed. 
  
External Port:  The port 
range through which the 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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external server send 
request traffics to internal 
clients with the range of 
1～65535. Note that the 
low number first and two 
blanks can keep the same 
number if needed. 
  
Apply:  To enable or 
disable the rule. 
  
Add:  After edit the rule, 
click the “add” button to 
add the current entry to 
port triggering list. 
 
Apply:  Click “Apply” to 
activate the current rule. 
  
Cancel:  Click “Cancel” to 
drop all setting saved last 
time. 
It is allowed to delete or 
modify the previous rules 
in the list table. 
Note: 
The special 
application can be 
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 Wireless-N Broadband Router   
only used in one 
PC. If there is more 
than one PC to 
open the same 
triggering port, the 
external port will be 
connected to the 
last PC for the 
application.
 
 
ALG Service Settings 
 
ALG(Application Layer 
Gateway)In the context of 
computer networking, an 
ALG or application layer 
gateway consists of a 
security component that 
augments a firewall or 
NAT employed in a 
computer network. It 
allows customized NAT 
traversal filters to be 
plugged into the gateway 
to support address and  
 
 
 
 
 
 
 
 
 
 
 
 
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port translation for certain 
application layer 
control/data protocols 
such as FTP, BitTorrent, 
SIP, RTSP, file transfer 
applications etc.  
 
In order for these 
protocols to work through 
NAT or a firewall, either 
the application has to 
know about an 
address/port number 
combination that allows 
incoming packets, or the 
NAT has to monitor the 
control traffic and open up 
port mappings (firewall 
pinhole) dynamically as 
required. Legitimate 
application data can thus 
be passed through the 
security checks of the 
firewall or NAT that would 
have otherwise restricted 
the traffic for not meeting 
its limited filter criteria.   
 
 
 
 
 
 
 
 
 
 
 
 
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 Wireless-N Broadband Router   
Usually allowing client 
applications to use 
dynamic ephemeral TCP/ 
UDP ports to 
communicate with the 
known ports used by the 
server applications, even 
though a 
firewall-configuration may 
allow only a limited 
number of known ports. In 
the absence of an ALG, 
either the ports would get 
blocked or the network 
administrator would need 
to explicitly open up a 
large number of ports in 
the firewall; rendering the 
network vulnerable to 
attacks on those ports.   
 
In the default ALG 
settings, the following 
protocols have enabled. It 
is recommended to keep 
the settings unchanged.
1,FTP 
2,TFTP 
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 Wireless-N Broadband Router   
3,PPTP 
4,IPSec 
5,L2TP 
 
 
DMZ Settings   
 
The DMZ function is to 
allow one computer in 
LAN to be exposed to the 
Internet for a special- 
purpose service as 
Internet gaming or 
videoconferencing. 
 
DMZ Host IP Address:  
The IP address of the 
computer you want to 
expose.  
 
Enable:  Click the check- 
box to enable the DMZ 
host. 
 
IMPORTANT: 
     When enabled the 
DMZ host, the 
 
 
 
 
 
 
 
 
 
 
 
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firewall settings of 
the DMZ host will 
not function.
 
 
UPnP Settings   
 
It supports latest Universal 
Plug and Play. This 
function goes into effect 
on Windows XP or 
Windows ME or this 
function would go into 
effect if you have installed 
software that supports 
UPnP. With the UPnP 
function, host in LAN can 
request the router to 
process some special port 
switching so as to enable 
host outside to visit the 
resources in the internal 
host. 
 
Enable UPnP: Click the 
checkbox to enable the 
UPnP. 
 
 
 
 
 
 
 
 
 
 
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 Wireless-N Broadband Router   
Chapter 9: Traffic Control 
 
Traffic Control   
 
Traffic control is used to 
limit communication speed 
in the LAN and WAN. Up 
to 20 entries can be 
supported with the 
capability for at most 254 
PCs speed control, 
including for IP address 
range configuration. 
  
Enable Traffic Control: 
To enable or disable the 
internal IP bandwidth 
control. 
  
Interface: To limit the 
uploading and 
downloading bandwidth in 
WAN port. 
  
Service:  To select the 
controlled service type, 
such as HTTP service. 
IP Starting Address:  The 
 
 
 
 
 
 
 
 
 
 
 
 
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 Wireless-N Broadband Router   
first IP address for traffic 
control. 
  
IP Ending Address: The 
last IP address for traffic 
control. 
     
Uploading/Downloading:  
To specify the traffic 
heading way for the 
selected IP addresses: 
uploading or downloading.
  
Bandwidth:  To specify the 
uploading/downloading 
Min. /Max. Traffic speed 
(KB/s), which can not 
exceed the WAN speed. 
  
Apply:  To enable the 
current editing rule. If not, 
the rule will be disabled. 
  
Add:  After edit the rule, 
click the “add to list” button 
to add the current rule to 
rule list. 
Apply:  Click “Save” to 
 
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 Wireless-N Broadband Router   
activate the current rule. 
  
Cancel: Click “Cancel” to 
drop all setting saved last 
time. 
  
It is allowed to delete or 
modify the previous 
rules in the list table.   
 
 
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