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4.1.2 Packet Filters

Packet Filter includes both outbound filter and inbound filter. And they have same

way to setting. It enables you to control what packets are allowed to pass the router.

Outbound filter applies on all outbound packets. However, inbound filter applies on

packets that destined to Virtual Servers or DMZ host only. You can select one of the

two filtering policies:

1. Allow all to pass except those match the specified rules.

2. Deny all to pass except those match the specified rules.

You can specify 8 rules for each direction: inbound or outbound. For each rule, you

can define the following:



Source IP address



Source port



Destination IP address

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

Destination port



Protocol: TCP or UDP or both.



Use Rule#

For source or destination IP address, you can define a single IP address (4.3.2.1) or

a range of IP addresses (4.3.2.1-4.3.2.254). An empty implies all IP addresses.

For source or destination port, you can define a single port (80) or a range of ports

(1000-1999). Add prefix "T" or "U" to specify TCP or UDP protocol. For example,

T80, U53, U2000-2999, No prefix indicates both TCP and UDP are defined. An

empty implies all port addresses. Packet Filter can work with

Scheduling Rules,

and give user more flexibility on Access control. For Detail, please refer to

Scheduling Rule.

Each rule can be enabled or disabled individually.

Afterwards, click on “Save” to store your settings or click “Undo” to give up the

changes.

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4.1.3 Domain Filters

Domain Filter prevents users under this device from accessing specific URLs.

1.

Domain Filter

: Check if you want to enable Domain Filter.

2.

Log DNS Query

: Check if you want to log the action when someone

accesses the specific URLs.

3.

Privilege IP Address Range

: Setting a group of hosts and privilege these

hosts to access network without restriction.

4.

Domain Suffix

: A suffix of URL can be restricted, for example, ".com",

"xxx.com".

5.

Action

: When someone is accessing the URL met the domain-suffix, what

kind of action you want.

Check “Drop” to block the access. Check “Log” to log these access.

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6.

Enable

: Check to enable each rule.

Afterwards, click on “Save” to store your settings or click “Undo” to give up

the changes.

4.1.4 URL Blocking

URL Blocking

will block LAN computers to connect with pre-define Websites. The

major difference between “Domain filter” and “URL Blocking” is Domain filter

requires user to input suffix (like .com or .org, etc), while URL Blocking requires user

to input a keyword only. In other words, Domain filter can block specific website,

while URL Blocking can block hundreds of websites by simply a keyword.

1.

URL Blocking

: Check if you want to enable URL Blocking.

2.

URL

: If any part of the Website's URL matches the pre-defined word, the

connection will be blocked. For example, you can use pre-defined word "sex" to

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block all websites if their URLs contain pre-defined word "sex".

3.

Enable

: Check to enable each rule.

Afterwards, click on “Save” to store your settings or click “Undo” to g

ive up

the changes.

4.1.5 MAC Control

MAC Address Control allows you to assign different access right for different users

and to assign a specific IP address to a certain MAC address.

1.

MAC Address Control:

Check “Enable” to enable the “MAC Address

Control”. All of the settings in this page will take effect only when “Enable” is

checked.

2.

Connection control:

Check "Connection control" to enable the controlling of

which wired and wireless clients can connect with this device. If a client is denied