TP-Link Router TL-WR941N User Manual

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¾ Connect Manually  - You can configure the  router to make it connect or disconnect manually. 
After a specified peri od of inactivity (Max Idle Time), the router will disconnect your Internet 
connection, and not be able to re -establish your connection automatically as soon as you 
attempt to access the Internet again. To use th is option, click the radio button. If you want 
your Internet connection to remain active at all times, enter  0 in the  Max Idle Time  field. 
Otherwise, enter the number in  minutes that you wish to have the Internet connecting last 
unless a new link requested. 
)  Note: 
Sometimes the connection cannot be disconnec ted although you specify a time to Max Idle Time 
because some applications visit the Inte rnet continually in the background. 
4.3.3 Network service detection 
Choose menu “Network →Network service detection ”, you can Use WAN Network Service 
Detection feature on next screen, this router c an detect the Internet connection online or not.   
 
Figure 4-11 
¾  By Ping -  Detect whether Internet connecti on is online or not by Ping.   
¾  Destination IP Address for Ping  - Enter the correct IP address that really existed on the 
WAN network. For exam ple: 202.96.134.188. 
¾  By DNS Query  - Detect whether Internet connection is  online or not by sending query packet 
to DNS Server. 
¾  DNS Server IP Address  - Enter the correct DNS IP address that really existed on the WAN 
network. For exampl e: 202.96.134.133. 
4.3.4 MAC Clone 
Choose menu “ Network→MAC Clone”, you can configure the MA C address of the WAN on the 
screen below (shown in  Figure 4-12). 
Some ISPs require that you register the MAC address of your adapter, which is connected to your
  
cable, DSL modem or Ethernet during installati on. You do not generally need to change anything 
here.  
						

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Figure 4-12 
¾  WAN MAC Address -  This field displays the current  MAC address of the WAN port, which is 
used for the WAN port. If your ISP requires that  you register the MAC address, please enter 
the correct MAC address into this fiel d. The format for the MAC address is 
XX-XX-XX-XX-XX-XX (for example: 00-0A-EB- E6-B9-49). 
¾  Your PCs MAC Address -  This field displays the MAC addr ess of the PC that is managing 
the router. If the MAC address is required, you can click the  Clone MAC Address button 
and this MAC address will fill in  the “WAN MAC Address” field. 
) Note: 
1) Click  Restore Factory MAC  to restore the MAC address of WAN port to the factory 
default value. 
2)  Only the PC(s) on your LAN can use the MAC Address Clone  feature. 
3)  After you finish the  configuration, click the Save button, and the router  will prompt you to 
reboot. 
4.3.5  WAN Port Parameter 
Choose menu “ Network→WAN Port Parameter ”, you can view the information about the WAN 
ports in the next screen.  
						

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Figure 4-13 
¾  WAN Index -  This shows the Routers WAN ports. 
¾  Port Status -  This shows the ports current  status: Enabled or Disabled, the default status is 
Enabled. 
¾  Flow Control -  This displays whether the Flow Cont rol is Enabled, Enabled means the 
function is enabled, Disabled  means the function ist enabled. 
¾  Negotiation Mode -  The options are: Auto Negotiati on, 10M Half Duplex, 10M Full 
Duplex,100M Half Duplex,100M Full Duplex. 
¾  Ingress Limit Mode & Ingress Limit Speed  - Select the limit mode and limit speed for the 
WAN ports. 
¾  Egress Limit & Egress Limit speed  - Enable Egress Limit for WAN ports and select the limit 
speed for them. 
)  Note: 
Egress speed limit is designed for  controlling the broadcasting storm. When the current flux 
oversteps the setting value, the  overstepped datagrams will be discarded. 
4.4  DHCP 
Choose menu “DHCP”, you can see the subm enus under the main menu:  DHCP Settings, DHCP 
Clients List  and Address Reservation . 
 
Figure 4-14 
Click any of them, and you will be able to configure the corresponding  function. The detailed  
						

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explanations for each submenu are provided below. 
4.4.1 DHCP Settings 
Choose menu “ DHCP→DHCP Settings ”, you can configure the  DHCP in the next screen (shown 
in  Figure 4-15).   
The route
 r is set up by default as a DHCP (Dynamic Host Configuration Protocol) server, which 
provides the TCP/IP configurati on for all the PCs that are connec ted to the router on the LAN. 
 
Figure 4-15 
¾  DHCP Server - Enable  or disable the DHCP server. If you disable the Server, you must 
have another DHCP server within your network  or else you must manually configure the 
computer. 
¾  Start IP Address -  This field specifies the first addre ss in the IP address pool. The default 
address is 192.168.1.100. 
¾  End IP Address -  This field specifies the end address  in the IP address pool. The default 
address is 192.168.1.199. 
¾  Address Lease Time -  This is the amount of time in which a network user will be allowed 
connection to the router with t heir current dynamic IP address. Enter the amount of time (in 
minutes), the range of the time is 1 ~ 2 880 minutes. The default value is 120 minutes. 
¾  Default Gateway -  Suggest to input the IP address of  the LAN port of the router, default 
value is 192.168.1.1. (Optional) 
¾  Default Domain -  Input the domain name of your network. (Optional) 
¾  Primary DNS -  Input the DNS IP address provided by  your ISP. You can consult your ISP 
for it. (Optional) 
¾  Secondary DNS -  Input the IP address of another DNS serv er if your ISP provides two DNS 
servers. (Optional)  
						

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) Note: 
To use the DHCP server function of the router,  you must configure all computers on the LAN as 
Obtain an IP Address automatically mode. This function will take effect until the router reboots. 
4.4.2  DHCP Clients List 
Choose menu “DHCP →DHCP Clients List ”, you can view the info rmation about the clients 
attached to the router in the next screen (shown in  Figure 4-16). Click the Refr
 esh button to 
update the information. 
 
Figure 4-16 
¾  Client Name  -  This field displays the name of the DHCP client   
¾  MAC Address  -  This field displays the MA C address of the DHCP client   
¾  Assigned IP  -  This field displays the IP address that  the router has allocated to the DHCP 
client. 
¾  Lease Time  -  This field displays the time of the DHCP  client leased. Before the time is up, 
DHCP client will request to r enew the lease automatically. 
4.4.3 Address Reservation 
Choose menu “ DHCP→Address Reservation ”, you can view and add reserved addresses for 
clients via the next screen (shown in  Figure 4-17).   
If you 

specify a reserved IP address for a PC on the  LAN, that PC will always receive the same IP 
address each time when it accesses the DHCP  server. Reserved IP addresses should be 
assigned to servers that requi re permanent IP settings. 
 
Figure 4-17 
¾  MAC Address  -  This field displays the MAC address  of the PC for which you want to  
						

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reserve IP address. 
¾  Assigned IP Address -  This field displays the IP ad dress of the router reserved. 
¾  Status  - This field displays the status  of the virtual server entry. Enabled means that the 
entry will take effect,  Disabled means that the entry will not take effect. 
To add/modify a reserved IP address: 
Step 1:  Click Add New… /Modify  shown in  Figure 4-17, you will see a new screen shown in 
Figure 4-18. 
Step 2:  Enter the MAC addr

ess, IP address and select Status as shown in the screen below. 
 
Figure 4-18 
Step 3:  Click the  Save button when finished. 
) Note: 
4)  If you want to add more than one reserved IP, please go to  step 1 to continue. 
5)  The function wont take effe ct until the router reboots. 
Other configurations for the entries as shown in  Figure 4-17:  
C

lick the  Delete button to delete the entry. 
Click the  Enable All  button to enable all the entries. 
Click the  Disable All button to disable all the entries. 
Click the  Delete All button to delete all the entries. 
Click the  Previous  button to view the information in the previous screen,  click the  Next button to 
view the information in the next screen. 
4.5  Forwarding 
Choose menu “ Forwarding”, you can see the subm enus under the main menu:  Virtual Servers, 
Port Triggering , DMZ and UPnP .  
						

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Figure 4-19 
Click any of them, and you will be able to configure the corresponding  function. The detailed 
explanations for each submenu are provided below. 
4.5.1  Virtual Servers 
Choose menu “ Forwarding→Virtual Servers ”, you can view and add vi rtual servers in the next 
screen (shown in  Figure 4-20). 
Virtual servers 

can be used for setting up public se rvices on your LAN, such as DNS, Email and 
FTP. A virtual server is defined as a service port, an d all requests from Internet to this service port 
will be redirected to the computer  specified by the server IP. Any PC that was configured as a 
virtual server must have a static or a rese rved IP address because its IP address may change 
when using the DHCP function. 
 
Figure 4-20 
¾  Service Port  -  This field displays the numbers of External Ports. It can be a service port or a 
range of service ports (the format is XXX  - YYY, XXX is Start port, YYY is End port). 
¾  IP Address  -  This field displays the IP address of the PC running the service application. 
¾  Protocol  -  This field displays the protocol  used for this application, either TCP , UDP , or All 
(all protocols supported by the router). 
¾  Status  - This field displays the status  of the virtual server entry. Enabled means that the 
entry will take effect,  Disabled means that the entry will not take effect. 
To add/modify a virtual server entry:   
Step 1:  Click Add New… /Modify  shown in  Figure 4-17, you will see a new screen shown in 
Figure 4-21. 
Step 2:  Select the service yo

u want from the “Common Service Port”, then the port and 
protocol value will be added to the corres ponding field automatically, you only need to 
configure the IP address for the virtual server; If the “ Common Service Port” does not  
						

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contain the service that you want, please configure the Service Port, IP Address and 
Protocol manually. 
 
Figure 4-21 
Step 3:  After that, select  Enable to make the entry take effect. 
Step 4:  Click Save  button to save the configuration. 
) Note: 
6)  If you want to add more than one reserved IP, please go to  step 1 to continue. 
7)  It is possible that you confi gure more than one type of available service on a computer or 
server, it means the IP addresses  for the virtual servers are same.   
Other configurations for the entries as shown in Figure 4-21: 
C

lick the  Delete button to delete the entry. 
Click the  Enable All  button to enable all the entries. 
Click the  Disable All button to disable all the entries. 
Click the  Delete All button to delete all the entries. 
Click the  Previous  button to view the information in the previous screen,  click the  Next button to 
view the information in the next screen. 
)  Note: 
If you set the virtual server of the service por t as 80, you must set the web management port on 
System Tools –> Remote Management  screen to be any value except 80 such as 8080. Or else 
there will be a conflict to di sable the virtual server. 
4.5.2 Port Triggering 
Choose menu “ Forwarding→Port Triggering ”, you can view and add port triggerings in the next 
screen (shown in  Figure 4-22). 
Some applications requir
 e multiple connections, like Internet games, video conferencing, Internet 
calling and so on. These applications  cannot work with a pure NAT router. Port Triggering is used  
						

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for some of these applications that can work with an NAT router. 
 
Figure 4-22 
¾  Trigger Port  - This displays the port for outgoing traffic. An outgoing connection using this 
port will Trigger this rule. 
¾  Trigger Protocol  -  This displays the protocol used for Trigger Ports, either  TCP,UDP , or All 
(all protocols supported by the router). 
¾  Incoming Ports  -  This displays the port or port range  used by the remote system, they are 
used for responding to the outgoing request. A response using one of  these ports will be 
forwarded to the PC that triggered this rule. You can input at most 5 groups of ports (or port 
section). Every group of ports must be apart  with ,. For example, 2000-2038, 2050-2051, 
2085, 3010-3030. 
¾  Incoming Protocol  -  This displays the protocol used for Incoming Ports Range, either  TCP 
or  UDP , or ALL  (all protocols supported by the router). 
¾  Status  - This displays the status.  Enabled means that the rule will take effect,  Disabled 
means that the rule  will not take effect. 
Once configured, the oper ation for Port Triggering will proceed as follows:   
Step 1:  A local host makes an outgoing connection us ing a destination port number defined in 
the Trigger Port field. 
Step 2:  The router records this connec tion, opens the incoming port or ports associated with this 
entry in the Port Triggering table, and associates them with the local host. 
Step 3:  When necessary, the external host will be able to connect to the local host using one of 
the ports defined in the Incoming Ports  field. 
To add/modify a port triggering entry: 
Step 1:  Click Add New… /Modify  shown in  Figure 4-22, you will see a new screen shown in 
Figure 4-23. 
Step 2:  Select the a

pplication you want from the “ Common Applications ”, then the Trigger port 
and Incoming ports will be added to the corre sponding field automatically, you only need 
to configure the Trigger protocol and Incoming Protocol for the entry; If the “ Common 
Applications ” does not contain the app lications that you want, please configure these  
						

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options manually. 
 
Figure 4-23 
Step 3:  After that, select  Enabled to make the entry take effect. 
Step 4:  Click Save  button to save the configuration. 
) Note: 
1)  If you want to add more than one reserved IP, please go to  step 1 to continue. 
2)  When the trigger connection is released, the according opening ports will be closed. 
3)  Each rule allowed to be used only by one host on LAN synchronously. The trigger 
connection of other hosts  on LAN will be refused. 
4)  Incoming Port Range cannot overlap each other. 
Other configurations for the entries as shown in  Figure 4-23: 
C

lick the  Delete button to delete the entry. 
Click the  Enable All  button to enable all the entries. 
Click the  Disable All button to disable all the entries. 
Click the  Delete All button to delete all the entries. 
Click the  Previous  button to view the information in the previous screen,  click the  Next button to 
view the information in the next screen. 
4.5.3  DMZ 
Choose menu “ Forwarding→DMZ ”, you can view and configure  DMZ host in the screen (shown 
in  Figure 4-24). 
The DMZ ho
 st feature allows one local host to be  exposed to the Internet for a special-purpose 
service such as Internet gaming or videoconferen cing. DMZ host forwards all the ports at the 
same time. Any PC whose port is being forwarded must have its DHCP client function disabled 
and should have a new static IP  address assigned to it because its IP address may change when 
using the DHCP function.