Chapter 3.

Content Filtering

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Mobile Broadband 11n Wireless Router MBR1210 User Manual

Blocking Sites and Keywords

The router provides a variety of options for blocking Internet-based content and

communications services. With its content filtering feature, the router prevents objectionable

content from reaching your PCs. You can control access to Internet content by screening for

keywords within Web addresses. Content filtering options include:

•

Keyword blocking of HTTP traffic.

•

Outbound service blocking. Limits access from your LAN to Internet locations or services

that you specify as off-limits.

•

Denial of service (DoS) protection. Detects and thwarts DoS attacks such as Ping of

Death, SYN flood, LAND attack, and IP spoofing.

•

Blocking unwanted traffic from the Internet to your LAN.

The router allows you to restrict access to Internet content based on Web addresses and

Web address keywords.

1.

Log in to the router as described in

Log In to Your Router

on page

12.

2.

On the main menu, select Block Sites to display the Block Sites screen:

3.

To enable keyword blocking, select one of the following:

•

Per Schedule

. Turn on keyword blocking according to the settings on the Schedule

screen.

•

Always

. Turn on keyword blocking all the time, independent of the setting in the

Schedule screen.

4.

Enter a keyword or domain in the

Keyword

field, click

Add Keyword

, and then click

Apply

.

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Chapter 3.

Content Filtering

Mobile Broadband 11n Wireless Router MBR1210 User Manual

Some examples of keyword applications are shown in the following chart.

Table 2.

Keyword

Result

XXX

Block the URL http://www.badstuf.com/xxx.html.

.com

Only websites with other domain suffixes (such as .edu or .gov) can be viewed.

. ( a period)

Block all Internet browsing access.

Up to 32 entries are supported in the Keyword list.

Note:

If you block sites, you can set up the router to log attempts to access

them. See

Viewing, Selecting, and Saving Logged Information

on

page

39.

5.

To delete a keyword or domain, select it from the list, click

Delete Keyword

, and then click

Apply

.

6.

To specify a trusted user, enter that computer’s IP address in the

Trusted IP Address

field,

and then click

Apply

.

You can specify one trusted user, which is a computer that will be exempt from blocking

and logging. Since the trusted user will be identified by an IP address, you should

configure that computer with a fixed IP address.

7.

Click

Apply

to save your settings.

Chapter 3.

Content Filtering

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Mobile Broadband 11n Wireless Router MBR1210 User Manual

Blocking Services

1.

Log in to the router as described in

Log In to Your Router

on page

12.

2.

In the main menu, under Content Filtering, select Block Services to display this screen:

Figure 2.

3.

Select one of the following:

•

Per Schedule

. Turn on keyword blocking according to the settings in the Schedule

screen.

•

Always

. Turn on keyword blocking all the time, independent of the Schedule screen.

4.

Click

Add

, and the following screen displays:

Figure 3.

5.

Either select a service from the

Service Type

drop-down list, or use the

Service/Type User

Defined

field to create a custom service.

6.

Click

Add

to create the service, and it will be listed in the Service Table on the Block

Services screen.

7.

Click

Apply

to save your settings.

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Mobile Broadband 11n Wireless Router MBR1210 User Manual

Scheduling

The router uses Network Time Protocol (NTP) to obtain the current time and date from one of

several network time servers on the Internet.

Setting Your Time Zone

To localize the time for your log entries, you must

specify your time zone:

1.

Log in to the router as described in

Log In to

Your Router

on page

12.

2.

On the main menu under Content Filtering,

select Schedule:

3.

Select your time zone. This setting will be used

for the blocking schedule according to your local

time zone and for time-stamping log entries.

If your time zone is currently in daylight savings

time, select the

Automatically adjust for

daylight savings time

check box.

4.

Click

Apply

to save your settings.

Scheduling Firewall Services

If you enabled service blocking in the Block Services screen or port forwarding in the Ports

screen, you can set up a schedule for when blocking occurs or when access is not restricted.

1.

Log in to the router as described in

Log In to Your Router

on page

12.

2.

On the main menu, select the Schedule. The Schedule screen appears.

3.

To block Internet services based on a schedule, select

Every Day

, or select one or more

days. If you want to limit access completely for the selected days, select

All Day

. Otherwise,

to limit access during certain times for the selected days, fill in the

Start Blocking

and

End

Blocking

fields.

4.

Enter the values in 24-hour time format. For example, 10:30 a.m. would be 10 hours and 30

minutes, and 10:30 p.m. would be 22 hours and 30 minutes. If you set the start time after the

end time, the schedule will be effective through midnight the next day.

5.

Click

Apply

to save your changes.

Chapter 3.

Content Filtering

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Mobile Broadband 11n Wireless Router MBR1210 User Manual

Enabling Security Event Email Notification

To set up the router so that you can receive

logs and alerts by email, select Email from the

router menu to display the following screen:

To receive alerts and logs by email:

1.

Select the

Turn Email Notification On

check box.

2.

Fill in the fields to send alerts and logs

through email.

•

Your Outgoing Mail Server

. Enter the

name or IP address of the outgoing

SMTP mail server of your ISP (such as

mail.myISP.com).

•

Send to This Email Address.

Enter

the e-mail address where you want to

send the alerts and logs. Use a full email address, such as [email protected].

•

My mail server requires authentication

. Select this check box if you need to log in

to your SMTP server to send email. If you select this feature, you must enter the user

name and password for the mail server.

Tip:

If you cannot remember this information, check the settings in your email

program.

3.

Specify when you want the alerts and logs to be sent:

•

Send alert immediately

. Select the corresponding check box if you would like

immediate notification of a significant security event, such as a known attack, port

scan, or attempted access to a blocked site.

•

Send logs according to this schedule

. Specifies how often to send the logs:

Hourly

,

Daily

,

Weekly

, or

When Full

.

-

Day for sending log

. Specifies which day of the week to send the log. Relevant when

the log is sent weekly.

-

Time for sending log

. Specifies the time of day to send the log. Relevant when the

log is sent daily or weekly.

If the

Weekly

,

Daily

, or

Hourly

option is selected and the log fills up before the specified

period, the log is automatically e-mailed to the specified email address. After the log is

sent, it is cleared from the router’s memory. If the router cannot e-mail the log file, the log

buffer might fill up. In this case, the router overwrites the log and discards its contents.

4.

Click

Apply

so that your changes take effect.