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Page 46 / 77 Scroll up to view Page 41 - 45
TD-8840T
ADSL2+ Modem Router User Guide
40
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.
4.7.4 UPnP
Choose menu “
Forwarding
→
UPnP
”, and then you can view the information about
UPnP
in the
screen (shown in Figure 4-31). 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.
Figure 4-31
¾
Current UPnP Status:
UPnP can be enabled or disabled by clicking the
Enable
or
Disable
button. This feature is enabled by default.
¾
Current UPnP Settings List:
This table displays the current UPnP information.
•
App Description
: The description about the application which initiates the UPnP
request.
•
External Port
: The port which the Modem Router opened for the application.
•
Protocol
: The type of protocol which is opened.
•
Internal Port
: The port which the Modem Router opened for local host.
•
IP Address
: The IP address of the local host which initiates the UPnP request.
•
Status
: Either Enabled or Disabled. "Enabled" means that the port is still active;
otherwise, the port is inactive.
Click the
Enable
button to enable UPnP.
Click the
Disable
button to disable UPnP.
Click the
Refresh
button to update the Current UPnP Settings List.
4.8 Parent Control
Choose menu “
Parent Control
”, and you can configure the parent control in the screen as shown
in Figure 4-32. The Parent Control function can be used to control the internet activities of the child,
limit the child to access certain websites and restrict the time of surfing.
Page 47 / 77
TD-8840T
ADSL2+ Modem Router User Guide
41
Figure 4-32
¾
Enable Parental Control:
Check the box if you want this function to take effect. This function
is disabled by default.
¾
MAC Address of Parental PC:
In this field, enter the MAC address of the controlling PC, or
you can make use of the
Copy To Above
button below.
¾
MAC Address of Current PC:
This field displays the MAC address of the PC that is
managing this Modem Router. If the MAC Address of your adapter is registered, you can click
the Copy To Above button to fill this address to the MAC Address of Parental PC field above.
¾
Add URL:
Here you can input the net addresses which the child is allowed to access.
Click the
Save
button to save your settings.
Page 48 / 77
TD-8840T
ADSL2+ Modem Router User Guide
42
4.9 Firewall
There are five submenus under the Firewall menu:
Rule
,
LAN
Host
,
WAN
Host
,
Schedule
and
DDoS
. Click any of them, and you will be able to configure the corresponding function.
4.9.1 Rule
Choose menu “
Firewall
”
→
“
Rule
”, and then you can view and set the rules in the screen as
shown in Figure 4-33.
Figure 4-33
¾
Enable Firewall:
Select the check box to enable the Firewalll function, so the Default Filtering
Rules can take effect.
¾
Description:
Here displays the description of the rule and this name is unique.
¾
LAN Host:
Here displays the host selected in the corresponding rule.
¾
Target:
Here displays the target selected in the corresponding rule.
¾
Schedule:
Here displays the schedule selected in the corresponding rule.
¾
Status:
Here displays the status of the rule, enabled or not.
¾
Edit:
Here you can edit or delete an existing rule.
¾
Add New:
Click the
Add New
button to add a new rule entry.
¾
Enable Selected:
Click the
Enable Selected
button to enable the selected rules in the list.
¾
Disable Selected:
Click the
Disable Selected
button to disable the selected rules in the list.
Page 49 / 77
TD-8840T
ADSL2+ Modem Router User Guide
43
¾
Delete Selected:
Click the
Delete Selected
button to delete the selected entries in the table.
The methods to add a new rule:
1.
Click the
Add New
button and the next screen will pop up as shown in Figure 4-34.
2.
Give a name (e.g. Rule_1) for the rule in the
Description
field.
3.
Select a host from the
LAN
Host
drop-down list or choose “
Add LAN Host
”.
4.
Select a target from the
WAN Host
drop-sown list or choose “
Add WAN Host
”.
5.
Select a schedule from the
Schedule
drop-down list or choose “
Add Schedule
”.
6.
In the
Action
field, select
Deny
or
Allow
to deny or allow your entry.
7.
In the
Status
field, select
Enabled
or
Disabled
to enable or disable your entry.
8.
In the
Direction
field, select
IN
or
OUT
from the drop-down list for the direction.
9.
In the
Protocol
field, here are four options, All, TCP, UDP, and ICMP. Select one of them
from the drop-down list for the target.
10. Click the
Save
button.
Figure 4-34
4.9.2 LAN Host
Choose menu “
Firewall
”
→
“
LAN
Host
”, and then you can view and set a Host list in the screen
as shown in Figure 4-35.
Figure 4-35
¾
Description:
Here displays the description of the host and this description is unique.
¾
Address Info:
Here displays the information about the host. It can be IP or MAC.
¾
Edit:
To modify an existing entry.
Page 50 / 77
TD-8840T
ADSL2+ Modem Router User Guide
44
To add a new entry, please follow the steps below.
1.
Click the
Add New
button.
2.
In the
Mode
field, select IP Address or MAC Address.
z
If you select IP Address, please follow the steps below:
1) In
Description
field, create a unique description for the host (e.g. Host_1).
2) In
IP Address
field, enter the IP address.
z
If you select MAC Address, please follow the steps below:
1) In
Description
field, create a unique description for the host (e.g. Host_1).
2) In
MAC Address
field, enter the MAC address.
3.
Click the
Save
button to complete the settings.
Click the
Delete Selected
button to delete the selected entries in the table.
4.9.3 WAN Host
Choose menu “
Firewall
”
→
“
WAN
Host
”, and then you can view and set a Host list in the screen
as shown in Figure 4-36.
Figure 4-36
¾
Description:
Here displays the description about the WAN and this description is unique.
¾
Details:
The details can be IP address, port, or domain name.
¾
Edit:
To modify an existing entry.
To add a new entry, please follow the steps below.
1.
Click the
Add New
button.
2.
In Mode field, select
IP Address
,
MAC Address
or
URL Address
.
If you select
IP Address
, the screen shown is Figure 4-37.
Figure 4-37
1)
In
Description
field, create a unique description for the host (e.g. Host_1).
2)
In
IP Address
field, enter the IP address.

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