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49

shown in Figure 4-38:

Figure 4-38

Add or Modify a MAC Address Filtering entry

To add or modify a MAC Address Filtering entry, follow these instructions:

1.

Enter the appropriate MAC Address into the

MAC Address

field. The format of the MAC

Address

is

XX-XX-XX-XX-XX-XX

(X

is

any

hexadecimal

digit).

For

example:

00-0E-AE-B0-00-0B.

2.

Type the description of the PC in the

Description

field. Fox example: John’s PC.

3.

Status

- Select

Enabled

or

Disabled

for this entry on the

Status

pull-down list.

4.

Click the

Save

button to save this entry.

To add additional entries, repeat steps 1-4.

When finished, click the

Return

button to return to the

MAC Address Filtering

page.

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.

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

Click the

Next

button to go to the next page and click the

Previous

button to return to the

previous page.

Fox example:

If you want to block the PC with MAC addresses 00-0A-EB-00-07-BE and

00-0A-EB-00-07-5F to access the Internet, first, enable the

Firewall

and

MAC Address Filtering

on the

Firewall

page, then, you should specify the Default MAC Address Filtering Rule "

Deny

these PC(s) with effective rules to access the Internet

" on the Firewall page and the following

MAC address filtering list on this page:

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4.8.5 Advanced Security

Using Advanced Security page (shown in Figure 4-39), you can protect the router from being

attacked by TCP-SYN Flood, UDP Flood and ICMP-Flood from LAN.

Figure 4-39

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

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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.

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 4-40:

Figure 4-40

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 4-41).

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Figure 4-41

Static Routing

To add static routing entries:

1.

Click the

Add New

button. (pop-up Figure 4-42)

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 4-42

Add or Modify a Static Route Entry

To modify or delete an existing entry:

¾

Click the

Modify

in the entry you want to modify. If you want to delete the entry, click the

Delete

.

¾

Modify the information.

¾

Click the

Save

button.

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.

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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 4-43

Figure 4-43

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.

¾

Bandwidth Apply

– Specifies the bandwidth you get form 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