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Page 46 / 149 Scroll up to view Page 41 - 45
N600 Wireless Dual Band Router WNDR3400 User Manual
Protecting Your Network
3-2
v1.0, August 2010
Changing the Built-In Password
1.
Log in to the wireless router at its default LAN address of
with
its default user name of
admin
, default password of
password
, or using whatever password
and LAN address you have chosen for the wireless router.
2.
From the main menu, under the Maintenance heading, select
Set Password
to display the Set
Password screen:
3.
To change the password, first enter the old password, and then enter the new password twice.
4.
Click
Apply
to save your changes.
Restricting Access by MAC Address
For increased security, you can restrict access to the wireless network to allow only specific PCs
based on their MAC addresses. You can restrict access to only trusted PCs so that unknown PCs
cannot wirelessly connect to the WNDR3400 router. MAC address filtering adds an obstacle
against unwanted access to your network, but the data broadcast over the wireless link is fully
exposed.
To restrict access based on MAC addresses:
1.
Log in to the wireless router at its default LAN address of
with
its default user name of
admin
, and default password of
password
, or using whatever
password and LAN address you have chosen for the wireless router.
Note:
After changing the password, you must log in again to continue the
configuration. If you have backed up the wireless router settings previously,
you should do a new backup so that the saved settings file includes the new
password.
Note:
If you configure the router from a wireless computer, add your computer’s
MAC address to the access list. Otherwise you will lose your wireless
connection when you click Apply. You must then access the wireless router
from a wired computer, or from a wireless computer that is on the access
control list, to make any further changes.
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Page 47 / 149
N600 Wireless Dual Band Router WNDR3400 User Manual
Protecting Your Network
3-3
v1.0, August 2010
2.
From the main menu, select , and then click
Setup Access List
to display the Wireless Card
Access List screen.
3.
Click
Add
to add a wireless device to the wireless access control list. The Wireless Card
Access Setup screen opens and displays a list of currently active wireless cards and their
Ethernet MAC addresses.
4.
Adjust the list as needed for your network. You can add devices using either of the following
methods:
•
If the computer is in the Available Wireless Cards table, select the radio button of that
computer to capture its MAC address.
Figure 3-1
Figure 3-2
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Page 48 / 149
N600 Wireless Dual Band Router WNDR3400 User Manual
Protecting Your Network
3-4
v1.0, August 2010
•
Use the
Add
button to enter the MAC address of the device to be added. The MAC
address can usually be found on the bottom of the wireless device.
5.
Click
Add
, and then click
Apply
to save these settings. Now, only devices on this list will be
allowed to wirelessly connect to the router.
Blocking Access to Internet Sites
The WNDR3400 router allows you to restrict access based on Web addresses and Web address
keywords. Up to 255 entries are supported in the Keyword list.
Keyword application examples:
•
If the keyword
XXX
is specified, the URL www.zzzyyqq.com/xxx.html is blocked.
•
If the keyword
.com
is specified, only websites with other domain suffixes (such as .edu, .org,
or .gov) can be viewed.
To block access to Internet sites:
1.
Select
Block Sites
under Content Filtering in the main menu. The Block Sites screen displays.
Note:
If no device name appears when you enter the MAC address, you can type a
descriptive name for the computer that you are adding.
Figure 3-3
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Page 49 / 149
N600 Wireless Dual Band Router WNDR3400 User Manual
Protecting Your Network
3-5
v1.0, August 2010
2.
Enable keyword blocking by selecting either
Per Schedule
or
Always
.
To block by schedule, be sure to specify a time period in the Schedule screen. For information
about scheduling, see
“Scheduling Blocking” on page 3-8
.
Block all access to Internet browsing during a scheduled period by entering a dot (
.
) as the
keyword, and then set a schedule in the Schedule screen.
3.
Add a keyword or domain by entering it in the keyword field and clicking
Add Keyword
. The
keyword or domain name then appears the
Block sites containing these keywords or domain
names
list.
Delete a keyword or domain name by selecting it from the list and clicking
Delete Keyword
.
4.
You can specify one trusted user, which is a computer that is exempt from blocking and
logging. Specify a trusted user by entering that computer’s IP address in the
Trusted IP
Address
fields.
Since the trusted user is identified by IP address, you should configure that computer with a
fixed IP address.
5.
Click
Apply
to save all your settings in the Block Sites screen.
Blocking Access to Internet Services
The wireless router allows you to block the use of certain Internet services by computers on your
network. This is called service blocking or port filtering. Services are functions performed by
server computers 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 your network sends a request for service to a server computer on the
Internet, 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
destination port number 80 is an HTTP (Web server) request.
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Page 50 / 149
N600 Wireless Dual Band Router WNDR3400 User Manual
Protecting Your Network
3-6
v1.0, August 2010
To block access to Internet services:
1.
Select
Block Services
under Content Filtering in the main menu. The Block Services screen
displays.
2.
Enable service blocking by selecting either
Per Schedule
or
Always
, and then click
Apply
.
To block by schedule, be sure to specify a time period in the Schedule screen. For information
about scheduling, see
“Scheduling Blocking” on page 3-8
.
3.
Specify a service for blocking by clicking
Add
. The Block Services Setup screen displays.
Figure 3-4
Figure 3-5
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