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2-8 Firewall

A

firewall

is designed to permit or deny network transmissions based upon a set of rules

and is frequently used to protect networks from unauthorized access while permitting

legitimate communications to pass. The firewall can also block users from accessing the

specific URL.

Please click ‘

Firewall

’ menu on the left of web management interface, and the following

screen will be displayed on your web browser.

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2-8-1 QoS (Quality of Service)

You may setup rules to provide Quality of Service guarantees for specific applications.

To set QoS settings, Please click ‘

QoS BwLimit’

menu on the left of web management

interface, under the ‘

Firewall

’ tab and following screen will be displayed.

If you are finish with the settings, please click ‘

Submit’

button to continue with setup

procedure.

2-8-2 TCP/IP Filter

In this section you can setup firewall rules using MAC/IP/Port Filtering to restrict certain

types of data packets from your local network to Internet through the router.

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Please click ‘

TCP/IP Filter

menu on the left of web management interface, under the

‘

Firewall

’ tab and the following screen will be displayed on your web browser.

By default, the MAC/IP/Port Filtering feature is disabled.

Note : When Access Control is disabled, every device on the LAN has unrestricted

access to the Internet. However, if you enable Filtering, Internet access is restricted /

allowed for those devices that have an Access Control Policy configured for them.

All other devices will match with default policy and will be dropped or allowed as

per the default policy configured.

Here are the descriptions of every setup item.

Parameter

Description

Source MAC Address

Enter the Source MAC Addres.

Dest IP Address

Enter the Dest IP Address.

Source IP Address

Enter the Soure IP Address.

Protocol

Enter the Protocol TCP/UDP/ICMP.

Dest Port Range

Enter Destination port range.

Source Port Range

Enter Source port range.

Action

Enter the Action either Accept or Reject.

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When you finish with all settings, please click ‘

Apply

’ button to continue with other

setup procedures. If you want to reset the setting click on ‘

Reset

’.

2-8-3 URL Filter

URL Filter is a web solution that blocks web-sites access according the URL Filter

String.

Please click ‘

URL Filter

’ menu on the left of web management interface, under the

‘

Firewall

’ tab and the following screen will be displayed on your web browser.

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Here is the description of every setup items:

Parameter

Description

Web Content Filter

There are 3 options. When this options are checked

it will filter objects supporting proxy, java and

active X.

Web URL Filter

URL Filter blocks web-sites access according to

the URL Filter String.

Web Host Filter

URL Filter blocks web-sites access according to

the Keyword String.

Click on ‘

Add

’ to add the URL strings for filtering. If you want to delete any of the URL

string click ‘

Delete

’ button.

When you finish with all settings, please click ‘

Apply

’ button to continue with other

setup procedures. If you want to reset the setting click on ‘

Reset

’.