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Page 51 / 77 Scroll up to view Page 46 - 50
TD-8840T
ADSL2+ Modem Router User Guide
45
If you select
MAC Address
, the screen shown is Figure 4-38.
Figure 4-38
1)
In
Description
field, create a unique description for the host (e.g. Host_1).
2)
In
MAC Address
field, enter the MAC address.
If you select
URL Address
, the screen shown is Figure 4-39.
Figure 4-39
1)
In
Description
field, create a unique description for the host (e.g. Host_1).
2)
Enter the URL address in the
Add URL Address
field, and then click the
Add
button. The
URL address will be shown in the
Detail
table. If you click the
Delete
button, the existing URL
address in the
Detail
table can be deleted.
3.
Click the
Save
button to complete the settings.
4.9.4 Schedule
Choose menu “
Firewall
”
→
“
Schedule
”, and then you can view and set a Schedule list in the
next screen as shown in Figure 4-40.
Figure 4-40
¾
Description
: Here displays the description of the schedule and this description is unique.
¾
Edit
: Here you can modify an existing schedule.
Page 52 / 77
TD-8840T
ADSL2+ Modem Router User Guide
46
To add a new schedule, follow the steps below:
1. Click
Add New
button and the next screen will pop-up as shown in Figure 4-41.
2. In
Description
field, create a unique description for the schedule (e.g. Schedule_1).
3. In
Apply To
field, select the day or days you need.
4.
In time field, you can select all day-24 hours or you may enter the
Start Time
and
Stop Time
in the corresponding field.
5. Click
Save
to complete the settings.
Click the
Clear Schedule
button to clear your settings in the table.
Figure 4-41
Click the
Delete Selected
button to delete the slected entries in the table.
4.9.5 DDoS
Choose menu “
Firewall
”
→
“
DDoS
”, and then you can protect the Modem Router from being
attacked by TCP-SYN Flood, UDP Flood and ICMP-Flood in the screen as shown in Figure 4-42.
Page 53 / 77
TD-8840T
ADSL2+ Modem Router User Guide
47
Figure 4-42
¾
DoS protection -
Denial of Service protection. Check the Enable or Disable button to enable
or disable the DoS protection function. Only when it is enabled, will the flood filters be
enabled.
)
Note:
Dos Protection will take effect only when the
Traffic Statistics
in “
System Tool
→
Traffic
Statistics
” is enabled.
¾
Enable ICMP-Flood Attack Filtering
-
Enable or Disable the ICMP-Flood Attack Filtering.
¾
ICMP-Flood Packets Threshold (5~3600)
-
The default value is 50. Enter a value between
5
~
3600. When the current ICMP-Flood Packets number is beyond the set value, the Router
will startup the blocking function immediately.
¾
Enable UDP-Flood Filtering
-
Enable or Disable the UDP-Flood Filtering.
¾
UDP-Flood Packets Threshold (5~3600)
-
The default value is 500. Enter a value between 5
~
3600. When the current UPD-Flood Packets number is beyond the set value, the Router will
startup the blocking function immediately.
¾
Enable TCP-SYN-Flood Attack Filtering
-
Enable or Disable the TCP-SYN-Flood Attack
Filtering.
¾
TCP-SYN-Flood Packets Threshold (5~3600)
-
The default value is 50. Enter a value
between 5
~
3600. When the current TCP-SYN-Flood Packets numbers is beyond the set
value, the Router will startup the blocking function immediately.
¾
Forbid ping packet from LAN port
-
Enable or Disable Forbid ping packet from LAN port.
The default setting is disabled. If enabled, the ping packet from LAN cannot access the
Router. This function can be used to defend against some viruses.
Click the
Save
button to save the settings.
Click the
Blocked DoS Host List
button to display the DoS host table by blocking.
Page 54 / 77
TD-8840T
ADSL2+ Modem Router User Guide
48
4.10 Bandwidth Control
Choose menu “
Bandwidth Control
”, and then you can configure the Upstream Bandwidth and
Downstream Bandwidth in the next screen. The values you configure should be less than
100000Kbps. For optimal control of the bandwidth, please select the right Line Type and ask your
ISP for the total bandwidth of the egress and ingress.
Figure 4-43
¾
Enable Bandwidth Control:
Check this box so that the Bandwidth Control settings can take
effect.
¾
Line Type:
Select the right type for you network connection. If you don’t know how to choose,
please ask your ISP for the information.
¾
Total Upstream Bandwidth
- The upload speed through the WAN port
.
¾
Total Downstream Bandwidth -
The download speed through the WAN port.
Bandwidth Control Rules:
¾
Description:
This is the information about the rules such as address range.
¾
Upstream bandwidth:
This field displays the max and mix upload bandwidth through the
WAN port, the default is 0.
¾
Downstream bandwidth:
This field displays the max and mix download bandwidth through
the WAN port, the default is 0.
¾
Edit:
Click
Edit
to modify the rule.
To add/modify a Bandwidth Control rule, follow the steps below.
1.
Click
Add New
shown in Figure 4-43, you will see a new screen shown in Figure 4-44.
2.
Enter the information like the screen shown below.
Page 55 / 77
TD-8840T
ADSL2+ Modem Router User Guide
49
Figure 4-44
3.
Click the
Save
button.
4.11 IP&MAC Binding
There are two submenus under the IP &MAC Binding menu:
Binding Settings
and
ARP List
.
Click any of them, and you will be able to scan or configure the corresponding function. The
detailed explanations for each submenu are provided below.
4.11.1 Binding Settings
This page displays the
IP & MAC Binding Setting
table; you can operate it in accord with your
desire (shown in
Figure 4-45).
Figure 4-45
¾
MAC Address:
The MAC address of the controlled computer in the LAN.
¾
IP Address:
The assigned IP address of the controlled computer in the LAN.
¾
Bound:
Check this option to enable ARP binding for a specific device.
¾
Edit:
To modify or delete an existing entry.

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