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54
Figure 4-41 Advanced Security settings
¾
Packets Statistic interval (5 ~ 60) -
The default value is 10. Select a value between 5 and
60 seconds in the pull-down list. The
Packets Statistic interval
value indicates the time
section of the packets statistic. The result of the statistic used for analysis by
SYN Flood
,
UDP Flood
and
ICMP-Flood
.
¾
DoS protection -
Enable
or
Disable
the DoS protection function. Only when it is enabled,
will the flood filters be effective.
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 packets. When the current
ICMP-FLOOD
Packets numbers is beyond the
set value, the router will start up 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 50. Enter a value
between 5 ~ 3600 packets. When the current
UPD-FLOOD
Packets numbers is beyond the
set value, the router will start up 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 packets. When the current
TCP-SYN-FLOOD
Packets numbers is
beyond the set value, the router will start up the blocking function immediately.
¾
Ignore Ping Packet from WAN Port
-
Enable
or
Disable
ignore ping packet from WAN port.
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55
The default is disabled. If enabled, the ping packet from the Internet cannot access the
router.
¾
Forbid Ping Packet from LAN Port
-
Enable or Disable forbidding Ping Packet to access
the router from the LAN port. The default value is disabled. If enabled, the ping packet from
the LAN port cannot access the router. (Defends against some viruses)
Click the
Save
button to save the settings.
Click the
Blocked DoS Host Table
button to display the DoS host table by blocking. The page will
appear that shown in Figure 4-42:
Figure 4-42 Thwarted DoS Host Table
This page shows
Host IP Address
and
Host MAC Address
for each host blocked by the router.
¾
Host IP Address-
The IP address that blocked by DoS are displayed here.
¾
Host MAC Address -
The MAC address that blocked by DoS are displayed here.
To update this page and to show the current blocked host, click on the
Refresh
button.
Click the
Clear All
button to clear all displayed entries. After the table is empty the blocked host
will regain the capability to access Internet.
Click the
Return
button to return to the
Advanced Security
page.
4.9 Static Routing
A static route is a pre-determined path that network information must travel to reach a specific
host or network. To add or delete a route, work in the area under the Static Routing page (shown
in Figure 4-43).
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56
Figure 4-43
Static Routing
To add static routing entries:
1.
Click the
Add New
button. (pop-up Figure 4-44)
2.
Enter the following data:
¾
Destination IP Address
-
The
Destination IP Address
is the address of the network or host
that you want to assign to a static route.
¾
Subnet Mask
-
The
Subnet Mask
determines which portion of an IP Address is the network
portion, and which portion is the host portion.
¾
Gateway
-
This is the IP Address of the gateway device that allows for contact between the
router and the network or host.
3.
Select
Enabled
or
Disabled
for this entry on the
Status
pull-down list.
4.
Click the
Save
button to save it.
Figure 4-44
Add or Modify a Static Route 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.
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57
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.
4.10
IP QoS
IP QoS
helps you to arrange the network resources more reasonably. This function can
guarantee the minimum bandwidth or limit the maximum bandwidth for the specified IP address(or
IP range) to make full use of the supplied bandwidth. You can configure the
IP QoS
on this page,
shown as in Figure 4-45.
Figure 4-45
¾
Enable IP QoS
– Enable or disable IP QoS function. You can enable this function for better
performance and experience with online games and other interactive applications such as
VoIP. The following IP Range QoS configuration won’t be effective unless it is enabled.
¾
Choose Bandwidth Type
– Specifies your network connection type. Here you can select
either
ADSL
or
Other
.
ADSL
– Select if you are using a dial-up connection.
Other
– Select if you are using other connection types.
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58
¾
Bandwidth Apply
– Specifies the bandwidth you get from your ISP. If you are not clear about
that, please contact with your ISP for help.
¾
IP Range
– Specifies the IP range of this entry.
¾
Mode
– There are 2 types of mode:
Minimum Bandwidth Guarantee
and
Maximum
Bandwidth Limit
.
¾
Bandwidth
– Specifies the bandwidth you want to supply to this entry.
¾
Description
– Description of this entry.
¾
Enable
– Enable this entry. This entry won’t be effective unless you check the
Enable
box.
Click the
Delete
button to delete single entry.
Click the
Delete All
button to delete all entries.
Click the
Save
button to save all configuration.
For example
, we assume that PC A, B, C are sharing the Internet with 2Mbps bandwidth through
one router. PC A is often for VoIP or online games, to guarantee its better performance without
interference from PC B and C, you can specify the minimum bandwidth for PC A such as
100Kbps.
)
Note:
1.
The conversion relation of bandwidth: 1 Mbps = 1000Kbps.
2. Please choose the
Network Connection Type
and set the bandwidth according to your
Network. If you are not clear about that, please contact with your ISP for help.
3.
IP address range for different entries could not have intersection with each other.
4.
After the configuration, click the
Save
button for the change to take effect.
4.11
IP & MAC Binding Setting
Figure 4-46 the IP & MAC Binding menu

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