DrayTek Vigor 2830 Router Manual PDF (Setup & Configuration Guide)

Page 191 / 357 Scroll up to view Page 186 - 190

Vigor2830 Series User’s Guide

179

The items categorized under

P2P -----

The items categorized under

Misc -----

Page 192 / 357

Vigor2830 Series User’s Guide

180

4.7.2 URL Content Filter Profile

To provide an appropriate cyberspace to users, Vigor router equips with

URL Content Filter

not only to limit illegal traffic from/to the inappropriate web sites but also prohibit other web

feature where malicious code may conceal.

Once a user type in or click on an URL with objectionable keywords, URL keyword blocking

facility will decline the HTTP request to that web page thus can limit user’s access to the

website. You may imagine

URL Content Filter

as a well-trained convenience-store clerk who

won’t sell adult magazines to teenagers. At office,

URL Content Filter

can also provide a

job-related only environment hence to increase the employee work efficiency. How can URL

Content Filter work better than traditional firewall in the field of filtering? Because it checks

the URL strings or some of HTTP data hiding in the payload of TCP packets while legacy

firewall inspects packets based on the fields of TCP/IP headers only.

On the other hand, Vigor router can prevent user from accidentally downloading malicious

codes from web pages. It’s very common that malicious codes conceal in the executable objects,

such as ActiveX, Java Applet, compressed files, and other executable files. Once downloading

these types of files from websites, you may risk bringing threat to your system. For example, an

ActiveX control object is usually used for providing interactive web feature. If malicious code

hides inside, it may occupy user’s system.

For example, if you add key words such as “sex”, Vigor router will limit web access to web

sites or web pages such as “www.sex.com”, ”www.backdoor.net/images/sex/p_386.html”. Or

you may simply specify the full or partial URL such as “www.sex.com” or “sex.com”.

Also the Vigor router will discard any request that tries to retrieve the malicious code.

Click

CSM

and click

URL Content Filter Profile

to open the profile setting page.

You can set eight profiles as URL content filter. Simply click the index number under Profile

to open the following web page.

Page 193 / 357

Vigor2830 Series User’s Guide

181

Profile Name

Type a name for the CSM profile.

Priority

It determines the action that this router will apply.

Both: Pass

– The router will let all the packages that match

with the conditions specified in URL Access Control and Web

Feature below passing through. When you choose this setting,

both configuration set in this page for URL Access Control

and Web Feature will be inactive.

Both:Block

–The router will block all the packages that match

with the conditions specified in URL Access Control and Web

Feature below. When you choose this setting, both

configuration set in this page for URL Access Control and

Web Feature will be inactive.

Either: URL Access Control First

– When all the packages

matching with the conditions specified in URL Access Control

and Web Feature below, such function can determine the

priority for the actions executed. For this one, the router will

process the packages with the conditions set below for URL

first, then Web feature second.

Either: Web Feature First

–When all the packages matching

with the conditions specified in URL Access Control and Web

Feature below, such function can determine the priority for the

actions executed. For this one, the router will process the

packages with the conditions set below for web feature first,

then URL second.

Log

None

– There is no log file will be recorded for this profile.

Page 194 / 357

Vigor2830 Series User’s Guide

182

Pass

– Only the log about Pass will be recorded in Syslog.

Block

– Only the log about Block will be recorded in Syslog.

All

– All the actions (Pass and Block) will be recorded in

Syslog.

URL Access Control

Enable URL Access Control

- Check the box to activate URL

Access Control. Note that the priority for

URL Access

Control

is higher than

Restrict Web Feature

. If the web

content match the setting set in URL Access Control, the

router will execute the action specified in this field and ignore

the action specified under Restrict Web Feature.

Prevent web access from IP address

- Check the box to deny

any web surfing activity using IP address, such as

http://202.6.3.2. The reason for this is to prevent someone

dodges the URL Access Control. You must clear your browser

cache first so that the URL content filtering facility operates

properly on a web page that you visited before.

Action

– This setting is available only when

Either : URL

Access Control First

or

Either : Web Feature First

is

selected.

Pass

-

Allow accessing into the corresponding

webpage with the keywords listed on the box below.

Block -

Restrict accessing into the corresponding webpage

with the keywords listed on the box below.

If the web pages do not match with the keyword set here, it

will be processed with reverse action.

Group/Object Selections

– The Vigor router provides several

frames for users to define keywords and each frame supports

multiple keywords. The keyword could be a noun, a partial

noun, or a complete URL string. Multiple keywords within a

frame are separated by space, comma, or semicolon. In

addition, the maximal length of each frame is 32-character

long. After specifying keywords, the Vigor router will decline

the connection request to the website whose URL string

matched to any user-defined keyword. It should be noticed that

the more simplified the blocking keyword list is, the more

efficiently the Vigor router performs.

Page 195 / 357

Vigor2830 Series User’s Guide

183

Web Feature

Enable Restrict Web Feature -

Check this box to make the

keyword being blocked or passed.

Action -

This setting is available only when

Either: URL

Access Control First

or

Either: Web Feature Firs

is

selected.

Pass

allows accessing into the corresponding

webpage with the keywords listed on the box below.

Pass

-

Allow accessing into the corresponding webpage with

the keywords listed on the box below.

Block

-

Restrict accessing into the corresponding webpage

with the keywords listed on the box below.

If the web pages do not match with the specified feature set

here, it will be processed with reverse action.

Cookie

-

Check the box to filter out the cookie transmission

from inside to outside world to protect the local user's privacy.

Proxy

-

Check the box to reject any proxy transmission. To

control efficiently the limited-bandwidth usage, it will be of

great value to provide the blocking mechanism that filters out

the multimedia files downloading from web pages.

File Extension Profile –

Choose one

of the profiles that you

configured in

Object Setting>> File Extension Objects

previously for passing or blocking the file downloading.

Rate

Popular DrayTek Models

Famous Router IPs

Famous Router Companies

Bookmark Our Site

Share