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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:

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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.

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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:

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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.

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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.