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Page 36 / 104 Scroll up to view Page 31 - 35
36
D-Link DIR-300 User Manual
Section 3 - Configuration
Application Rules
Some applications require multiple connections, such as Internet gaming, video conferencing, Internet telephony and others. These
applications have difficulties working through NAT (Network Address Translation). Special Applications makes some of these
applications work with the DIR-300.
Check the box to enable the rule.
Enter a name for the rule.
This is the port used to trigger the application. It can
be either a single port or a range of ports.
This is the port number on the WAN side that will
be used to access the application. You may define a
single port or a range of ports. You can use a comma
to add multiple ports or port ranges.
Select
TCP
,
UDP
, or
Any
.
Rule:
Name:
Trigger Port:
Firewall Port:
Traffic Type:
Page 37 / 104
3´
D-Link DIR-300 User Manual
Section 3 - Configuration
Access Control
Select
Turn MAC Filtering OFF
,
Turn MAC
Filtering ON and ALLOW computers listed to access
the network
, or
Turn MAC Filtering ON and DENY
computers listed to access teh network
.
Enter the MAC address you would like to filter.
To find the MAC address on a computer, please refer
to the Networking Basics section in this manual.
Select a DHCP client from the drop-down menu and
click the arrow to copy that MAC Address.
The schedule of time when the network filter will be
enabled. The schedule may be set to Always, which
will allow the particular service to always be enabled.
You can create your own times in the
Maintenance
>
Schedules
section.
Configure MAC
Filter:
MAC Address:
DHCP Client
List:
Schedule:
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.
Page 38 / 104
38
D-Link DIR-300 User Manual
Section 3 - Configuration
Check this to enable SPI.
Check this box to enable DMZ.
Enter the IP address of the computer you would like
to open all ports to.
Choose a name for the firewall rule.
Select to
Allow
or
Deny
transport of the data packets
according to the criteria defined in the rule.
The Source/Destination is the TCP/UDP port on
either the LAN or WAN side.
Click
Add New
to access the Schedules window. See
Maintenance>Schedules
for more information.
Enter a beginning and ending IP address.
Select the transport protocol that will be used for
the filter rule.
Enter the desired port range for the filter rule.
Enable DMZ
Host:
DMZ IP Address:
Name:
Action:
Source/Dest:
Schedule:
IP Address:
Protocol:
Port Range:
Firewall & DMZ
This section will allow you to set up a DMZ host and to set up firewall rules.
If you have a client PC that cannot run Internet applications properly from behind the DIR-300, 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.
Enable SPI:
Page 39 / 104
3µ
D-Link DIR-300 User Manual
Section 3 - Configuration
Set the transmit power of the antennas.
Beacons are packets sent by an Access Point to synchronize a
wireless network. Specify a value.
100
is the default setting and
is recommended.
This value should remain at its default setting of
2346
. If
inconsistent data flow is a problem, only a minor modification
should be made.
The fragmentation threshold, which is specified in bytes,
determines whether packets will be fragmented. Packets exceeding
the ±3²6 byte setting will be fragmented before transmission.
2346
is the default setting.
(Delivery Traffic Indication Message)
1
is the default setting. A
DTIM is a countdown informing clients of the next window for listening to broadcast and multicast messages.
Select Short or Long Preamble. The Preamble defines the length of the CRC block (Cyclic Redundancy Check is a common technique
for detecting data transmission errors) for communication between the wireless router and the roaming wireless network adapters. Auto
is the default setting. Note: High network traffic areas should use the shorter preamble type.
CTS (Clear To Send) is a function used to minimize collisions among wireless devices on a wireless local area network
(LAN). CTS will make sure the wireless network is clear before a wireless client attempts to send wireless data. Enabling
CTS will add overhead and may lower wireless through put.
None:
CTS is typically used in a pure 80±.11g environment. If
CTS is set to “None” in a mixed mode environment populated by 80±.11b clients, wireless collisions may occur frequently.
Always:
CTS will always be used to make sure the wireless LAN is clear before sending data.
Auto:
CTS will monitor the wireless
network and automatically decide whether to implement CTS based on the amount of traffic and collisions that occurs on the wireless
network.
Tick this checkbox to restrict access to 80±.11g devices only.
Transmit Power:
Beacon
interval:
RTS Threshold:
Fragmentation:
DTIM Interval:
Preamble Type:
CTS Mode:
802.11g Only
Mode:
Advanced Wireless
This window allows you to change the behavior of the 80±.11g wireless radio from the standard settings. Please be aware that any
changes to the factory default settings may adversely affect the behavior of your network.
Page 40 / 104
²0
D-Link DIR-300 User Manual
Section 3 - Configuration
To use the Universal Plug and Play (UPnP
™
)
feature tick this checkbox. UPNP provides
compatibility with networking equipment, software
and peripherals.
Unchecking the box will not allow the DIR-300 to
respond to Pings. Blocking the Ping may provide
some extra security from hackers. Tick this
checkbox to allow the WAN port to be “Pinged”.
You may set the port speed of the WAN port to
10Mbps
,
100Mbps
, or
10/100Mbps Auto
. Some
older cable or DSL modems may require you to
set the port speed to 10Mbps.
Gaming mode allows a form of pass-through for
certain Internet Games. If you are using Xbox,
Playstation± or a PC, make sure you are using the
latest firmware and Gaming Mode is enabled. To
utilize Gaming Mode, click the box. If you are not
using a Gaming application, it is recommended that
you Disable Gaming Mode.
Enable UPnP:
Enable WAN
Ping Respond:
WAN Port
Speed:
Enable Gaming
Mode:
Advanced Network
This window allows you to change the LAN settings. Please be aware that any changes to the factory default settings may affect
the behavior of your network.

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