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Page 56 / 133 Scroll up to view Page 51 - 55
USB Storage
56
N300 Wireless ADSL2+ Modem Router DGN2200v4
3.
To add a folder, click
Create Network Folder
.
If the Add a Network Folder screen does not display, your web browser might be blocking
pop-ups. If it is, then change the browser settings to allow pop-ups.
4.
In the Folder field, browse and select the folder.
5.
Fill in the Share Name field.
6.
In the Read Access list and the Write Access list, select the setting that you want.
The user name (account name) for All – no password is guest. The password for admin is
the same one that is used to log in to the modem router. By default, it is password.
7.
Click
Apply
.
The folder is added on the USB device.
To edit a network folder:
1.
Select
Advanced > ReadySHARE
.
2.
Click the
Edit
button.
The Edit Network Folder screen displays the same settings shown in the Add a Network
Folder screen.
3.
Change the settings in the fields as needed.
4.
Click
Apply
.
Your changes are saved.
Page 57 / 133
USB Storage
57
N300 Wireless ADSL2+ Modem Router DGN2200v4
Specify Approved USB Devices
For more security, you can set up the modem router to share only approved USB devices.
To set up approved USB devices:
1.
Select
Advanced > Advanced Setup > USB Settings.
2.
Click the Approved Devices
button.
This screen shows the approved USB devices and the available USB devices. You can
remove or add approved USB devices.
3.
In the Available USB Devices list, select the drive that you want to approve.
4.
Click
Add
.
5.
Select the
Allow only approved devices
check box.
6.
Click
Apply.
Your change takes effect.
If you want to work with another USB device, first click the
Safely Remove USB Device
button for the currently connected USB device. Connect the other USB device, and repeat
this process.
Page 58 / 133
58
6
6.
Security
This chapter explains how to use the basic firewall features of the modem 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
•
Set Up Firewall Rules to Control Network Access
•
Port Triggering to Open Incoming Ports
•
Port Forwarding to Permit External Host Communications
•
How Port Forwarding Differs from Port Triggering
•
Set Up Port Forwarding to Local Servers
•
Set Up Port Triggering
•
Schedule When to Block the Internet
•
Security Event Email Notifications
Page 59 / 133
Security
59
N300 Wireless ADSL2+ Modem Router DGN2200v4
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.
To set up keyword blocking:
1.
Select
Advanced > Security >
Block Sites
.
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.
3.
Click Apply.
Your changes are saved.
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
.
Your changes are saved.
Page 60 / 133
Security
60
N300 Wireless ADSL2+ Modem Router DGN2200v4
Set Up Firewall Rules to Control Network Access
Your modem router has a firewall that blocks unauthorized access to your wireless network
and permits authorized inbound and outbound communications. Authorized communications
are established according to inbound and outbound rules. The firewall has the following two
default rules
•
Inbound
. Block all access from outside except responses to requests from the LAN side.
•
Outbound
. Allow all access from the LAN side to the outside.
You can add rules to further restrict the outbound communications or more widely open the
inbound communications. Exceptions can be based on the service or application, source or
destination IP addresses, and time of day. You can log traffic that matches or does not match
the rule and change the order of rule precedence.
Traffic attempting to pass through the firewall is subjected to the rules in the order shown in
the Rules table from the top (highest precedence) to the bottom. In some cases, the order of
precedence determines which communications are allowed into or out of the network.
To set up firewall rules:
1.
Select
Advanced > Security >
Firewall Rules
.
2.
You can add, edit, or delete a rule.
•
To add an outbound rule, click
Add
under Outbound Services.
•
To edit or delete a rule, select its button on the left side and click
Edit
or
Delete
.
3.
(Optional) Change the order of precedence:
a.
Select the button on the left side of the rule and click
Move
.
b.
At the prompt, enter the number of the new position and click
OK
.
4.
(Optional) To open or close instant messaging, select one of the following radio buttons:
•
Close IM Ports
. Disables instant messaging traffic.
•
Open IM Ports
. Enables instant messaging traffic. IM ports are open by default.
5.
Click
Apply.
Your changes are saved.

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