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Page 31 / 101 Scroll up to view Page 26 - 30
31
DI-724U User’s Manual
D-Link Systems, Inc.
Using the Configuration Menu
Use MAC (Media Access Control) Filters to allow or deny LAN (Local Area Network)
computers by their MAC addresses from accessing the Network. You can either manually
add a MAC address or select the MAC address from the list of clients that are currently
connected to the Broadband Router.
Advanced > Filters > MAC Filters
IP Filters:
Filters
MAC Filters
MAC Filters:
The MAC address filter section controls access to the LAN (and
therefore to the Internet) by computers or other network devices. This
feature is most useful to prevent unauthorized wireless devices from
connecting to your network. LAN computers are indentified by the
unique MAC addresses of their network adapters. A MAC address is
a unique ID assigned by the manufacturer of the network adapter.
The Filters section allows you to control access in and out of devices
on your network. Use this feature as Parental Controls to only grant
access to approved sites, limit web access based on time or dates,
and/or block access from applications such as peer-to-peer utilities
or games.
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Page 32 / 101
32
DI-724U User’s Manual
D-Link Systems, Inc.
Using the Configuration Menu
URL Blocking is used to deny LAN computers from accessing all websites except for
permitted domains. A URL is a specially formatted text string that defines a location
on the Internet. If any part of the URL contains the allowed word, the website will be
accessible to LAN computers. To use this feature, enter the text string to be allowed
and click
Apply
.
The text to be allowed will appear in the list. To delete the text, just
highlight it and click
Delete
.
Parental Control
URL Blocking
Advanced > Parental Control > URL Blocking
Parental Control:
The Parental Controls section controls access to Web sites
from computers on the LAN.
Domain Blocking:
When “enabled”, access is permitted only to web sites listed in
the “Allowed Web Site List”. When “disabled”, access is permitted
to all web sites.
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Page 33 / 101
33
DI-724U User’s Manual
D-Link Systems, Inc.
Using the Configuration Menu
Firewall
Firewall Rules is an advanced feature used to deny or allow traffic from passing through
the DI-724U. It works in the same way as IP Filters with additional settings. You can
create more detailed access rules for the DI-724U. Firewall Rules contain all network
firewall rules pertaining to IP (Internet Protocol).
In the Firewall Rules List at the bottom of the screen, the priorities of the rules are from
top (highest priority) to bottom (lowest priority).
Note: The DI-724U MAC Address filtering rules have precedence over the Firewall
Rules.
Advanced > Firewall
Name:
Enter a name for the rule that is meaningful to you.
Action:
The rule can either Allow or Deny messages.
Source IP Range:
Define the range of Internet addresses this rule applies to.
The router automaticcally logs(records) events of possible interest in its internal memory.
If there is not enough internal memory for all events, logs of older events are deleted, but
logs of the latest events are retained.
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Page 34 / 101
34
DI-724U User’s Manual
D-Link Systems, Inc.
Using the Configuration Menu
If you have a client PC that cannot run Internet applications properly from behind the
DI-724U, then you can set the client up for unrestricted Internet access. It allows a
computer to be exposed to the Internet. This feature is useful for gaming purposes.
Enter the IP address of the internal computer that will be the DMZ host. Adding a client
to the DMZ (Demilitarized Zone) may expose your local network to a variety of security
risks, so only use this option as a last resort.
DMZ
Advanced > DMZ
IP Address:
DMZ:
DMZ means “Demilitarized Zone.” If an application has trouble
working from behind the router, you can expose one computer
to the Internet and run the application on that computer.
Specify the IP address of the computer on the LAN that you want
to have unrestricted Internet communication. If this computer
obtains its address Automatically using DHCP, then you may
want to make a static reservation on the
Home
->
DHCP
page,
so that the IP address of the DMZ machine does not change.
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Page 35 / 101
35
DI-724U User’s Manual
D-Link Systems, Inc.
Using the Configuration Menu
Performance
Advanced > Performance
RTS Threshold:
This setting should remain at its default value of 2346. If you
encounter inconsistent data flow, only minor modifications to
the value range between 1 and 2346 are recommended.
Fragmentation:
This setting should remain at its default value of 2346. Setting the
Fragmentation value too low may result in poor performance.
DTIM Interval:
A DTIM is a countdown for informing clients of the next window
for listening to broadcast and multicast messages. When the
wireless router has buffered broadcast or multicast messages for
associated clients, it sends the next DTIM with a DTIM Interval
value. Wireless clients detect the beacons and awaken to receive
the broadcast and multicast messages. The default value is 1.
Valid settings are between 1 and 255.
Transmit Power:
Normally the wireless transmitter operates at 100% power. In
some circumstances, however, there might be a need to isolate
specific frequencies to a smaller area. By reducing the power of
the radio, you can prevent transmissions from reaching beyond
your corporate/home office or designated wireless area.
Beacon Interval:
Beacons are packets sent by a wireless router to synchronize
wireless devices. Specify a Beacon Interval value between 20
and 1000 milliseconds. The default value is 100 milliseconds.
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