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Page 81 / 146 Scroll up to view Page 76 - 80
ReadySHARE Printer
81
CENTRIA WNDR4700/WNDR4720
Control Center Configuration
Select
Tools > Configuration
to display the following screen:
Automatically execute when logging on Windows
. Enable this utility to start automatically
when you are logged in to Windows.
Timeout
. Specify the time-out value for holding the USB resource when it is not in use.
Language
. Select the display language for this utility.
USB Printer
The first time you use a printer, click
Connect
. You might be asked to install the driver for this
printer. After the driver is installed, the printer status changes to Available.
Note:
Some USB printers (for example: HP and Lexmark printers) request
that you do not connect the USB cable until their installation
software prompts you to do so.
If the USB printer is detected and connected automatically, you need to disconnect the
printer, and then wait for the prompt asking you to click
Connect
.
Page 82 / 146
ReadySHARE Printer
82
CENTRIA WNDR4700/WNDR4720
Once the printer shows Available status, it is no longer grayed out in a Paused state in the
Windows Printers window.
This USB printer is ready. The utility does not need to hold the connection of this USB printer.
Once there is any print job for this printer, the USB utility connects to this USB printer and
prints. After the print job is done, the printer status returns to the Paused state.
Scan with a Multifunction Printer
You can use the scan feature of a multifunction printer.
1.
Make sure that the printer status shows as Available.
2.
Click the
Network Scanner
button.
This activates the scanner window to perform scans.
Page 83 / 146
83
7
7.
Security
Keeping unwanted content out of your network
This chapter explains how to use the basic firewall features of the router to prevent objectionable
content from reaching the computers and devices on your network.
This chapter includes the following sections:
•
Keyword Blocking of HTTP Traffic
•
Block Services (Port Filtering)
•
Schedule Blocking
•
Security Event Email Notifications
Page 84 / 146
Security
84
CENTRIA WNDR4700/WNDR4720
Keyword Blocking of HTTP Traffic
Use keyword blocking to prevent certain types of HTTP traffic from accessing your network.
The blocking can be always or according to a schedule.
1.
Select
Advanced > Security >
Block Sites
to display the following screen:
2.
Select one of the keyword blocking options:
•
Per Schedule
. Turn on keyword blocking according to the Schedule screen settings.
•
Always
. Turn on keyword blocking all the time, independent of the Schedule screen.
3.
In the keyword field, enter a keyword or domain, click
Add Keyword
, and click
Apply
.
The keyword list supports up to 32 entries. Here are some sample entries:
•
•
Specify .com if you want to allow only sites with domain suffixes such as .edu or .gov.
•
Enter a period (
.
) to block all Internet browsing access.
To delete a keyword or domain:
1.
Select the keyword you want to delete from the list.
2.
Click
Delete Keyword
and then
Apply
to save your changes.
To specify a trusted computer:
You can exempt one trusted computer from blocking and logging. The computer you exempt
has to have a fixed IP address.
1.
In the Trusted IP Address field, enter the IP address.
2.
Click
Apply
to save your changes.
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Security
85
CENTRIA WNDR4700/WNDR4720
Block Services (Port Filtering)
Services are functions that server computers perform at the request of client computers. For
example, web servers serve web pages, time servers serve time and date information, and
game hosts serve data about other players’ moves. When a computer on the Internet sends
a request for service to a server computer, the requested service is identified by a service or
port number. This number appears as the destination port number in the transmitted IP
packets. For example, a packet that is sent with the destination port number 80 is an HTTP
(web server) request.
The service numbers for many common protocols are defined by the Internet Engineering
Task Force (IETF at
) and published in RFC1700, “Assigned Numbers.”
Service numbers for other applications are typically chosen from the range 1024 to 65535 by
the authors of the application. Although the router already holds a list of many service port
numbers, you are not limited to these choices. Usually, you can determine this information by
contacting the publisher of the application or the relevant user groups or news groups.
The Block Services screen lets you add and block specific Internet services by computers on
your network. This is called service blocking or port filtering. To add a service for blocking,
first determine which port number or range of numbers the application uses.
To block services:
1.
Select
Advanced > Security > Block Services
to display the following screen:
2.
Select either
Per Schedule
or
Always
to enable service blocking, and click
Apply
. If you
selected Per Schedule, specify a time period in the Schedule screen as described in
Schedule Blocking
on page
87.

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