TP-Link Router TL-WR740N User Manual

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3. Select Enabled or Disabled  for this entry on the  Status pull-down list. 
4. Click the  Save button to save this entry. 
To modify or delete an existing entry: 
1. Click the  Modify in the entry you want to modify. If  you want to delete the entry, click the  
Delete. 
2.  Modify the information.   
3. Click the  Save button. 
Click the  Enable All  button to make all entries enabled 
Click the  Disabled All  button to make all entries disabled. 
Click the  Delete All  button to delete all entries. 
Click the  Next button to go to the next page. 
Click the  Previous  button to return to the previous page. 
For example:  If you desire that the wireless station A with MAC address 00-0A-EB-B0-00-0B and 
the wireless station B with MAC address 00-0A-EB-00-07-5F are able to access the Router, but all 
the other wireless stations cannot access the Router, you can configure the  Wireless MAC 
Address Filtering  list by following these steps: 
1. Click the  Enable button to enable this function. 
2.  Select the radio button “Deny  the stations not specified by any enabled entries in the list to 
access” for  Filtering Rules . 
3.  Delete all or disable all entries if there are any entries already. 
4. Click the
 Add New... button.  
1)   Enter the MAC address
 00-0A-EB-B0-00-0B/00-0A-EB-00-07-5F in the MAC Address  field. 
2)   Enter wireless station A/B in the  Description field. 
3)  Select  Enabled in the Status  pull-down list. 
4)  Click the  Save button. 
5)  Click the  Back button. 
The filtering rules that configured s hould be similar to the following list: 
  
						

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4.6.4 Wireless Advanced 
Choose menu “ Wireless → Wireless Advanced ”, you can configure the advanced settings of 
your wireless network. 
 
Figure 4-23 Wireless Advanced 
¾  Transmit Power -  Here you can specify the  transmit power of Router. You can select High, 
Middle or Low which you would like. High  is the default setting and is recommended. 
¾ Beacon Interval - Enter a value between 20-1000 milliseconds for Beacon Interval here. 
The beacons are the packets  sent by the Router to synchronize a wireless network. Beacon 
Interval value determines the time interval  of the beacons. The default value is 100.   
¾ RTS Threshold -  Here you can specif y the RTS (Request to Send) Threshold. If the packet 
is larger than the specified RTS Threshold  size, the Router will send RTS frames to a 
particular receiving station and negotiate the s ending of a data frame. The default value is 
2346.  
¾  Fragmentation Threshold -  This value is the maximum size determining whether packets 
will be fragmented. Setting the Fragmentation Thre shold too low may result in poor network 
performance because of excessive packe ts. 2346 is the default setting and is 
recommended.  
¾  DTIM Interval -  This value determines the interval of  the Delivery Traffic Indication Message 
(DTIM). A DTIM field is a countdown field informing clients of the next window for listening to 
broadcast and multicast messages . When the Router has buffered broadcast or multicast 
messages for associated clients,  it sends the next DTIM with a DTIM Interval value. You can  
						

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specify the value between 1-255 Beacon Intervals. The default value is 1, which indicates 
the DTIM Interval is the same as Beacon Interval.   
¾  Enable WMM - WMM  function can guarantee the packets  with high-priority messages being 
transmitted preferentially. It  is strongly recommended.   
¾ Enable Short GI -  This function is recommended for it  will increase the data capacity by 
reducing the guard interval time
.  
¾  Enabled AP Isolation -  This function can isolate wireless stations on your network from 
each other. Wireless devices will be able to communi cate with the Router but not with each 
other. To use this function, check this  box. AP Isolation is disabled by default.
 
) Note:  
If you are not familiar with the setting items  in this page, its strongly recommended to keep 
the provided default values; otherwise it may re sult in lower wireless network performance. 
4.6.5 Wireless Statistics 
Choose menu “ Wireless → Wireless Statistics ”, you can see the MAC A ddress, Current Status, 
Received Packets and Sent Packets for each connected wireless station. 
 
Figure 4-24 Wireless Statistics 
¾  
MAC Address -  The connected wireless stations MAC address 
¾ Current Status  - The connected wireless stat ions running status, one of STA-AUTH / 
STA-ASSOC / STA-JOINED / WPA / WPA-PSK  / WPA2 / WPA2-PSK / AP-UP / AP-DOWN / 
Disconnected
 
¾  Received Packets  -  Packets received by the station 
¾  Sent Packets  -  Packets sent by the station 
You cannot change any of the values on this page. To update this page and to show the current 
connected wireless stations, click on the  Refresh button.   
If the numbers of connected wireless st ations go beyond one page, click the Next button to go to 
the next page and click the  Previous button to return the previous page.  
						

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) Note:  
This page will be refreshed autom atically every 5 seconds. 
4.7  DHCP 
 
Figure 4-25    The DHCP menu 
There are three submenus unde r the DHCP menu (shown in Figure 4-25), DHCP Settings , 
DHCP Clients List  and Address Reservation.  Click any of them, and you will be able to 
configure the corre sponding function. 
4.7.1 DHCP Settings 
Choose menu “ DHCP → DHCP Settings ”, you can configure the  DHCP Server on the page as 
shown in  Figure 4-26 .The Router is set up by default as  a DHCP (Dynamic Host Configuration 
Protocol) server, which provides  the TCP/IP configuration for all the PC(s) that are connected to 
the Router on the LAN.   
 
Figure 4-26 DHCP Settings 
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 configure the computer 
manually. 
¾  Start IP Address -  Specify an IP address for the DHCP Server to start with when assigning 
IP addresses. 192.168.1.100 is the default start address.  
						

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¾ End IP Address -  Specify an IP address for the DHCP Server to end with when assigning IP 
addresses. 192.168.1.199 is  the default end address. 
¾ Address Lease Time -  The Address Lease Time  is the amount of time a network user will 
be allowed connection to the Rout er with their current dynamic IP Address. Enter the 
amount of time in minutes and t he user will be leased this dynamic IP Address. After the 
time is up, the user will be  automatically assigned a new dynam ic IP address. The range of 
the time is 1 ~ 2880 minutes. The default value is 120 minutes. 
¾  Default Gateway -  (Optional.) It is suggested to  input the IP address of the LAN port of the 
Router. The default va lue is 192.168.1.1. 
¾ Default Domain -  (Optional.) Input the domai n name of your network. 
¾ Primary DNS -  (Optional.) Input the DNS IP address pr ovided by your ISP or consult your 
ISP. 
¾  Secondary DNS -  (Optional.) Input the IP address of  another DNS server if your ISP 
provides two DNS servers. 
)  Note: 
To use the DHCP server function  of the Router, you must configure all computers on the LAN as 
Obtain an IP Address automatically. 
4.7.2  DHCP Clients List 
Choose menu “ DHCP →  DHCP Clients List ”, you can view the information about the clients 
attached to the Router in the screen as shown in  Figure 4-27. 
 
Figure 4-27    DHCP Clients List 
¾ Client Name  -  The name of the DHCP client   
¾  MAC Address  -  The MAC address of the DHCP client   
¾  Assigned IP  -  The IP address that the Router  has allocated to the DHCP client 
¾ Lease Time  -  The time of the DHCP cli ent leased. After the dynami c IP address has expired, 
a new dynamic IP address will be autom atically assigned to the user.      
						

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You cannot change any of the values on this page. To update this page and to show the current 
attached devices, click the  Refresh button. 
4.7.3 Address Reservation 
Choose menu “ DHCP → Address Reservation ”, you can view and add a reserved address for 
clients via the next screen (shown in  Figure 4-28).When 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 the servers that require permanent 
IP settings.   
 
Figure 4-28  Address Reservation 
¾  MAC Address -  The MAC address of the PC for which you want to reserve an IP address. 
¾ Reserved IP Address -  The IP address reserved for the PC by the Router. 
¾ Status  -  The status of this entry, either  Enabled or Disabled. 
To Reserve an IP address:   
1. Click the  Add New… button. Then  Figure 4-29 will pop-up. 
2.  Enter the MAC address (in XX-XX-XX-XX-XX-XX  format.) and IP address (in dotted-decimal 
notation) of the computer for which yo u want to reserve an IP address.   
3. Click the  Save button.   
 
Figure 4-29    Add or Modify an Address Reservation Entry  
						

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To modify or delete an existing entry: 
1. Click the Modify in the entry you want to modify. If  you want to delete the entry, click the  
Delete. 
2.  Modify the information.   
3. Click the  Save button. 
Click the  Enable/Disabled All  button to make all entries enabled/disabled 
Click the  Delete All  button to delete all entries. 
Click the  Next button to go to the next page and Click the  Previous button to return the previous 
page.  
4.8  Forwarding 
 
Figure 4-30 The Forwarding menu 
There are four submenus under the Forwarding menu (shown in  Figure 4-30): Virtual Servers , 
Port Triggering , DMZ  and  UPnP . Click any of them, and you will be able to configure the 
corresponding function. 
4.8.1  Virtual Servers 
Choose menu “ Forwarding → Virtual Servers ”, you can view and add virtual servers in the 
screen as shown in  Figure 4-31. Virtual servers can be used for setting up public services on 
your LAN, such as DNS, Email and FTP. A virtual server is defined as a service port, and all 
requests from the Internet to th is service port will be redirected to the computer specified by the 
server IP. Any PC that was used for a virtual se rver must have a static or reserved IP Address 
because its IP Address may be changed when using the DHCP function.   
 
Figure 4-31   Virtual Servers  
						

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¾ Service Port - The numbers of External Ports. You can type a service port or a range of 
service ports (in XXX – YYY format, XXX is  the start port number, YYY is the end port 
number).  
¾  IP Address -  The IP Address of the PC pr oviding the service application. 
¾ Protocol -  The protocol used for th is application, either TCP, UDP , or All (all protocols 
supported by the Router). 
¾  Status -  The status of this entry, either  Enabled or Disabled. 
To setup a virtual server entry:   
1. Click the  Add New… button, the next screen will pop-up as shown in  Figure 4-32. 
2.  Select the service port you want to use from the  Common Service Port list. If the Common 
Service Port  list does not have the service that you  want to use, type the service port 
number or service port range in the  Service Port box. 
3.  Type the IP Address of the computer in the  IP Address box.  
4.  Select the protocol used  for this application, either TCP, UDP , or All . 
5. Select the  Enable to enable the virtual server. 
6. Click the  Save button.   
 
Figure 4-32    Add or Modify a Virtual Server Entry 
) Note: 
If your computer or server has more than one ty pe of available service, please select another 
service, and enter the same IP Addr ess for that computer or server. 
To modify or delete an existing entry: 
1. Click the  Modify in the entry you want to modify. If  you want to delete the entry, click the  
Delete. 
2.  Modify the information.    
						

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3. Click the Save button. 
Click the  Enable/Disabled All  button to make all entries enabled/disabled. 
Click the  Delete All  button to delete all entries. 
Click the  Next button to go to the next page and click the  Previous button to return the previous 
page.  
) Note: 
If you set the service port of the virtual server as 80, you must set the Web management port on 
“ Security  → Remote Management ” page to be any other value except 80 such as 8080. 
Otherwise there will be a conflict  to disable the virtual server. 
4.8.2 Port Triggering 
Choose menu “ Forwarding → Port Triggering ”, you can view and add port triggering in the 
screen as shown in  Figure 4-33. Some applications require mult iple connections, like Internet 
games, video conferencing, Inte rnet calling and so on. These app lications cannot work with a 
pure NAT Router. Port Triggering is used for some of these applicati ons that can work with an NAT 
Router. 
 
Figure 4-33   Port Triggering 
Once the Router is configured,  the operation is as follows:   
1.  A local host makes an outgoing connection us ing a destination port number defined in the 
Trigger Port field.   
2.  The Router records this connection, opens t he incoming port or ports associated with this 
entry in the Port Triggering table, and a ssociates them with the local host.   
3. When necessary ，  the external host will be able to connec t to the local host using one of the 
ports defined in the  Incoming Ports field. 
¾ Trigger Port -  The port for outgoing traffic. An outgoi ng connection using this port will trigger 
this rule. 
¾  Trigger Protocol -  The protocol used for Trigger Ports, either  TCP, UDP , or  All (all 
protocols supported by the Router).  
						

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¾ Incoming Ports Range -  The port or port range used by the remote system when it 
responds 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 sections). 
Every group of ports must be set apart with  ,. For example, 2000-2038, 2050-2051, 2085, 
3010-3030. 
¾  Incoming Protocol -  The protocol used for Incoming Ports Range, either  TCP or UDP , or 
ALL  (all protocols support ed by the Router). 
¾ Status -  The status of this entry, either  Enabled or Disabled. 
To add a new rule, follow the steps below.   
1. Click the  Add New… button, the next screen will pop-up as shown in  Figure 4-34. 
2.  Select a common application from the  Common Applications drop-down list, then the 
Trigger Port field and the  Incoming Ports field will be automatic ally filled. If the Common 
Applications  do not have the application you need, enter the  Trigger Port and the 
Incoming Ports  manually. 
3.  Select the protocol used  for Trigger Port from the Trigger Protocol drop-down list, either 
TCP , UDP , or All . 
4.  Select the protocol used  for Incoming Ports from the Incoming Protocol drop-down list, 
either  TCP or UDP , or All. 
5. Select  Enable in Status  field.   
6. Click the  Save button to save the new rule. 
 
Figure 4-34    Add or Modify a Port Triggering Entry 
To modify or delete an existing entry: 
1. Click the  Modify in the entry you want to modify. If  you want to delete the entry, click the  
Delete. 
2.  Modify the information.