ASUS 4G-N12 Router Manual PDF (Setup & Configuration Guide)

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4.4.2 MAC Filter

When MAC Filter is enabled, only those MAC addresses in the list

are allowed or denied access to your network.

To set up a MAC ﬁlter:

1. From the navigation panel, go to

Advanced Settings

Firewall

MAC Filter

tab.

2. On the

Enable MAC Filter

ﬁeld, select

Enable

3. Enter an MAC address and click the

button.

4. Click

Apply

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4.4.3 Intrusion Detection

Intrusion Detection blocks and prevents malicious attacks or

intrusions from harming your network and the devices connected

to it. Your wireless router prevents Dos attachs such as IP Spooﬁng,

Ping of Death, IP with Zero Length, Smurf Attack, UDP port

loopback, Snork Attack, TCP null scan, and TCP SYN ﬂoodng.

Intrusion Detection Feature

SPI and Anti-DoS ﬁrewall protection

: When this item is enabled,

all the incoming packets from the WAN services are blocked

except for those types selected in the Stateful Packet Inspection

(SPI) section.

RIP defect

: When this item is enabled, the router will not block RIP

request packets from the WAN services, preventing the overﬂow

of input queues due to packet accumulation.

Stateful Packet Inspection

Select

Yes

to allow the speciﬁc type of traﬃc to pass through the

ﬁrewall or

to block the type of traﬃc.

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4.4.4 Access Control

Access Control allows you to specify the clients or services that are

allowed or blocked to the WAN port service. The access control

rules are executed with the speciﬁed schedules.

To set up a network service ﬁlter:

1. From the navigation panel, go to

Advanced Settings

Firewall

Access Control

tab.

2. On the

Enable Filtering Function

ﬁeld, select

Enable

3. Click the

button to launch the Add New Rule screen.

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4. Enter a description of the clients.

5. Enter the clients’ IP range to block the speciﬁed clients.

6. Deﬁne a scheduling rule. You can select Always Blocking or

specify the day and time when the ﬁlters will be active.

7. To specify a network service to ﬁlter, select a network service

and check

Blocking

Client PC Service

to block the pre-

deﬁned network service.

8. On the

User-deﬁned services

ﬁeld, select a protocol type and

enter the clients’ IP ranges to manually deﬁne the clients that

will be blocked.

9. Click

Apply

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4.4.5 URL Filter

You can specify keywords or web addresses to prevent access to

speciﬁc URLs.

NOTE:

The URL Filter is based on a DNS query. If a network client has

already accessed a website such as http://www.abcxxx.com, then the

website will not be blocked (a DNS cache in the system stores previously

visited websites). To resolve this issue, clear the DNS cache before

setting up the URL Filter.

To set up a URL ﬁlter:

1. From the navigation panel, go to

Advanced Settings

Firewall

URL Filter

tab.

2. Enter a URL keyword.

3. Click

Apply

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