Tenda Router W311R User Manual

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Appendix 1 Glossary 
 
Channel:     
An instance of medium use for the purpose of passing 
protocol data units (PDUs) that may be used 
simultaneously, in the same volume of space, with other 
instances of medium use(on other channels) by other 
instances of the same physical layer (PHY),with an 
acceptably low frame error ratio(FER) due to mutual 
interference. 
 
SSID:        
SSID(Service Set Identifier) is the network name 
shared by all devices in a wireless network. Your 
network’s SSID should be unique to your network and 
identical for all devices within the network. It is 
case-sensitive and must not exceed 20 characters (use 
any of the characters on the keyboard).Make sure this 
setting is the same for all devices in your wireless 
network. 
 
WEP:        
Wired Equivalent Privacy (WEP) is the method for 
secure wireless data transmission.  WEP adds data 
encryption to every single packet transmitted in the 
wireless network.   The 40bit and 64bit encryption are 
the same because of out 64 bits, 40 bits are  
						

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private.  Conversely, 104 and 128 bit are the 
same.  WEP uses a common KEY to encode the 
data.    Therefore, all devices on a wireless network must 
use the same key and same type of encryption.   There 
are 2 methods for entering the KEY; one is to enter a 
16-bit HEX digit.   Using this method, users must enter 
a 10-digit number (for 64-bit) or 26-digit number (for 
128-bit) in the KEY field.   Users must select the same 
key number for all devices.  The other method is to 
enter a text and let the computer generate the WEP key 
for you.  However, since each product use different 
method for key generation, it might not work for 
different products.   Therefore, it is NOT recommended 
using.  
 
WPA/WPA2 Encryption:   
A security protocol for wireless networks that builds on 
the basic foundations of WEP. It secures wireless data 
transmission by using a key similar to WEP, but the 
added strength of WPA is that the key changes 
dynamically. The changing key makes it much more 
difficult for a hacker to learn the key and gain access to 
the network.WPA2 is the second generation of WPA 
security and provides a stronger encryption mechanism 
through Advanced Encryption Standard (AES), which is 
a requirement for some government users.  
						

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Appendix 2 Questions and Answers   
In this part some questions and problems shown during 
the Router’s usage and installation will be given 
suggesting answers. If your problems are not in the list, 
please log into our website www.tenda.cn
 or send an 
E-mail to [email protected]
, and we will reply you in 
the first time. 
   
 
1. Can not login to the Web interface of the Router after 
you enter the IP address in the address field? 
 
Step 1: check the Router if it works well. Once the 
device is powered on for a few seconds, the SYS 
indicator on the panel will be turned on. If it is not, 
please contact us.   
   
Step 2: check the network cables if it is good and the 
corresponding indicator is “Always ON”. Sometimes, the 
indicator is “Always ON”, but it does not mean it gets 
through.  
 
Run “Ping” command and check if it can ping the 
Router’s LAN IP address 192.168.0.1. If it is OK, please 
make sure your browser does not access the Internet by 
proxy server. If the ping fails, you can press the “RESET” 
button for 7 seconds to restore to default settings. And  
						

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then repeat the ping operation. If it still does not work, 
please contact us. 
 
2.Forget the login password and can not enter the 
setting page. What can I do? 
 
Press the “RESET” button for 7 seconds to restore the 
Router to default settings. 
 
 
3.The computer connected with the Router shows IP 
address conflict. What can I do? 
 
Check if there are other DHCP servers in the LAN. If 
there have, disable them. The default IP address of the 
Router is 192.168.0.1 and please maker sure the 
address is not occupied by other devices. If there are 
two computers with the same IP addresses, please 
modify one. 
 
4.I can not use E-mail and access the Internet. What 
can I do? 
 
It happens in ADSL connection and Dynamic IP users. 
And you need modify the default MTU value (1492). 
Please in the “WAN Setting” modify the MTU value with 
the recommended value as 1450 or 1400.  
						

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5.How can I configure and access the Internet via 
Dynamic IP? 
 
In Setup Wizard of the Web utility interface, select 
“Dynamic IP” connection type and click “Save” to 
activate it. As some ISPs bind the user computer’s MAC 
address, you need to clone the Router’s WAN MAC 
address to the bind21ing PC’s MAC address. Select 
“MAC Address Clone” in “Advanced Setting” to input 
your computer’s MAC address and click “Apply” to 
activate it. 
 
6.How to share my computer’s source with other users 
in Internet? 
 
If you want Internet users to access the internal server 
via the Router such as e-mail server, Web, FTP, you can 
configure the “Virtual Server” to come true. 
Step 1: create your internal server, make sure the LAN 
users can access these servers and know related service 
port. For example, Web server’s port is 80; FTP is 21; 
SMTP is 25 and POP3 is 110. 
Step 2: in the Router’s web click “Virtual Server” and 
select “Single Port Forwarding”. 
Step 3: input the external service port given by the 
Router, for example, 80. 
Step 4: input the internal Web service port, for example,  
						

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80. 
Step 5: Input the internal server’s IP address. If your 
Web server’s IP address is 192.168.0.10, please input 
it. 
Step 6: select the communication protocol used by your 
i n t e r n a l  h o s t :  T C P,  U D P,  I C M P.  
Step 7: click “Apply” to activate the settings. 
The following table has listed the well-known 
application and service port:   
 
Server Protocol Service Port 
WEB Server  TCP  80 
FTP Server  TCP  21 
Telnet TCP 23 
NetMeeting TCP  1503.1720 
MSN 
Messenger TCP/UDP 
File 
Send:6891-6900(TCP) 
Voice:1863.6901(TCP) 
Voice:1863.5190(UDP) 
PPTP VPN  TCP  1723 
Iphone5.0 TCP  22555 
SMTP TCP 25 
POP3 TCP 110