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Page 86 / 117 Scroll up to view Page 81 - 85
TD-W8980
N600 Wireless Dual Band Gigabit ADSL2+ Modem Router User Guide
77
¾
Trigger Protocol
: The protocol used for Trigger Ports, either
TCP
,
UDP
, or
All
(all protocols
supported by the modem router).
¾
Open 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.
¾
Open Protocol
: The protocol used for
Incoming Port
, either
TCP
,
UDP
, or
ALL
(all
protocols supported by the modem router).
¾
Status
: The status of this entry, Enabled means the Port Triggering entry is enabled.
¾
Common Service Port
: Some popular applications already listed in the drop-down list of
Open Protocol
.
To modify or delete an existing entry:
1.
Find the desired entry in the table.
2.
Click
Edit
as desired on the
Edit
column.
Click the
Enable/ Disabled Selected
button to make selected entries enabled/ disabled.
Click the
Delete Selected
button to delete selected entries.
Once the modem router is configured, the operation is as follows:
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 modem 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.
Open 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 4-68).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 modem 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.
Page 87 / 117
TD-W8980
N600 Wireless Dual Band Gigabit ADSL2+ Modem Router User Guide
78
Figure 4-68
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 4-69). 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 4-69
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.
Page 88 / 117
TD-W8980
N600 Wireless Dual Band Gigabit ADSL2+ Modem Router User Guide
79
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.
4.13 Parental Control
Choose menu “
Parental Control
”, and you can configure the parental control in the screen as
shown in Figure 4-70. The Parental 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.
Figure 4-70
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 89 / 117
TD-W8980
N600 Wireless Dual Band Gigabit ADSL2+ Modem Router User Guide
80
4.14 IPv4 Firewall
There are four submenus under the Firewall menu:
Rule
,
LAN
Host
,
WAN
Host
and
Schedule
.
Click any of them, and you will be able to configure the corresponding function.
4.14.1 Rule
Choose menu “
Firewall
”
→
“
Rule
”, and then you can view and set Access Control rules in the
screen as shown in Figure 4-71.
Figure 4-71
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.
¾
Delete Selected:
Click the
Delete Selected
button to delete the selected entries in the table.
Page 90 / 117
TD-W8980
N600 Wireless Dual Band Gigabit ADSL2+ Modem Router User Guide
81
The methods to add a new rule:
1.
Click the
Add New
button and the next screen will pop up as shown in Figure 4-72.
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 4-72
4.14.2 LAN Host
Choose menu “
Firewall
”
→
“
LAN
Host
”, and then you can view and set a Host list in the screen
as shown in Figure 4-73.
Figure 4-73
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.

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