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Page 81 / 143 Scroll up to view Page 76 - 80
TL-WDR3500
N600 Wireless Dual Band Router
- 71 -
There are four submenus under the Forwarding menu (shown in Figure 4-65):
Virtual Servers
,
Port Triggering
,
DMZ
and
UPnP
. Click any of them, and you will be able to configure the
corresponding function.
4.12.1 Virtual Servers
Choose menu “
Forwarding
→
Virtual Servers
”, and then you can view and add virtual servers in
the next screen (shown in
Figure 4-66
). Virtual servers can be used for setting up public services
on your LAN. A virtual server is defined as a service port, and all requests from Internet to this
service port will be redirected to the computer specified by the server IP. Any PC that was used
for a virtual server must have a static or reserved IP address because its IP address may change
when using the DHCP function.
Figure 4-66 Virtual Servers
Service Port
- The numbers of External Service Ports. You can enter a service port or a
range of service ports (the format is XXX – YYY; XXX is the Start port and YYY is the End
port).
Internal Port
- The Internal Service Port number of the PC running the service application.
You can leave it blank if the
Internal Port
is the same as the
Service Port
, or enter a
specific port number when
Service Port
is a single one.
IP Address
- The IP address of the PC running the service application.
Protocol
- The protocol used for this application, either
TCP
,
UDP
, or
All
(all protocols
supported by the Router).
Status
- The status of this entry, "Enabled" means the virtual server entry is enabled.
Common Service Port
- Some common services already exist in the drop-down list.
Modify
- To modify or delete an existing entry.
To setup a virtual server entry:
1.
Click the
Add New...
button. (pop-up
Figure 4-67)
Page 82 / 143
TL-WDR3500
N600 Wireless Dual Band Router
- 72 -
2.
Select the service you want to use from the
Common Service Port
list. If the
Common
Service Port
menu does not list the service that you want to use, enter the number of the
service port or service port range in the
Service Port
field.
3.
Enter the IP address of the computer running the service application in the
IP Address
field.
4.
Select the protocol used for this application in the
Protocol
drop-down list, either
TCP
,
UDP
,
or
All
.
5.
Select the
Enabled
option in the
Status
drop-down list.
6.
Click the
Save
button.
Figure 4-67 Add or Modify a Virtual Server Entry
Note:
It is possible that you have a computer or server that has more than one type of available service.
If so, select another service, and type the same IP address for that computer or server.
To modify or delete an existing entry:
1.
Find the desired entry in the table.
2.
Click
Modify
or
Delete
as desired on the
Modify
column.
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 to the
previous page.
Note:
If you set the service port of the virtual server as 80, you must set the Web management port on
System Tools
→
Remote Management
page to be any other value except 80 such as 8080.
Otherwise there will be a conflict to disable the virtual server.
Page 83 / 143
TL-WDR3500
N600 Wireless Dual Band Router
- 73 -
4.12.2 Port Triggering
Choose menu “
Forwarding
→
Port Triggering
”, you can view and add port triggering in the next
screen (shown in Figure 4-68). Some applications require multiple connections, like Internet
games, video conferencing, Internet telephoning and so on. Port Triggering is used for some of
these applications that cannot work with a pure NAT Router.
Figure 4-68 Port Triggering
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 4-69.
2.
Select a common application from the
Common Applications
drop-down list, then the
Trigger Port
field and the
Incoming Ports
field will be automatically 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.
Page 84 / 143
TL-WDR3500
N600 Wireless Dual Band Router
- 74 -
Figure 4-69 Add or Modify a Triggering Entry
Trigger Port
- The port for outgoing traffic. An outgoing connection using this port will trigger
this rule.
Trigger Protocol
- The protocol used for Trigger Ports, either
TCP
,
UDP
, or
All
(all
protocols supported by the Router).
Incoming Port
- 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 which
triggered this rule. You can input at most 5 groups of ports (or port sections). Every group of
ports must be separated with ",", for example, 2000-2038, 2046, 2050-2051, 2085,
3010-3030.
Incoming Protocol
- The protocol used for
Incoming Port
, either
TCP
,
UDP
, or
ALL
(all
protocols supported by the Router).
Status
- The status of this entry, Enabled means the Port Triggering entry is enabled.
Modify
- To modify or delete an existing entry.
Common Applications
- Some popular applications already listed in the drop-down list of
Incoming Protocol
.
To modify or delete an existing entry:
1.
Find the desired entry in the table.
2.
Click
Modify
or
Delete
as desired on the
Modify
column.
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
Once the Router is configured, the operation is as follows:
Page 85 / 143
TL-WDR3500
N600 Wireless Dual Band Router
- 75 -
1.
A local host makes an outgoing connection to an external host using a destination port
number defined in the
Trigger Port
field.
2.
The Router records this connection, opens the incoming port or ports associated with this
entry in the
Port Triggering
table, and associates them with the local host.
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.
Note:
1)
When the trigger connection is released, the corresponding opened ports will be closed.
2)
Each rule can only be used by one host on the LAN at a time. The trigger connection of other
hosts on the LAN will be refused.
3)
Incoming Ports
ranges cannot overlap each other.
4.12.3 DMZ
Choose menu “
Forwarding
→
DMZ
”, and then you can view and configure DMZ host in the screen
(shown in Figure 4-70).The DMZ host feature allows one local host to be exposed to the Internet
for a special-purpose service such as Internet gaming or videoconferencing. The Router forwards
packets of all services to the DMZ host. 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 be changed when using the DHCP function.
Figure 4-70 DMZ
To assign a computer or server to be a DMZ server:
1.
Click the
Enable
button.
2.
Enter the IP address of a local PC that is set to be DMZ host in the
DMZ Host IP Address
field.
3.
Click the
Save
button.
4.12.4 UPnP
Choose menu “
Forwarding
→
UPnP
”, and then you can view the information about
UPnP
in the
screen (shown in Figure 4-71). The
Universal Plug and Play (UPnP)
feature allows the devices,
such as Internet computers, to access the local host resources or devices as needed. UPnP
devices can be automatically discovered by the UPnP service application on the LAN.

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