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DI-624M 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-624M. It works in the same way as IP Filters with additional settings. You can

create more detailed access rules for the DI-624M. When virtual services are created

and enabled, it will also display in Firewall Rules. 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-624M MAC Address filtering rules have precedence over the Firewall Rules.

Enable

or

disable

the Firewall.

Enter the name.

Select

Allow

or

Deny

.

Enter the

IP Address range

.

Enter the

IP Address range

, the

Protocol

, and the

Port Range

.

Select

Always

or enter the

Time Range

.

Firewall Rules:

Name:

Action:

Source:

Destination:

Schedule:

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DI-624M 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-624M, 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

or

Disable

the DMZ. The DMZ (Demilitarized Zone)

allows a single computer to be exposed to the internet.

By

default

the DMZ is

disabled

.

Enter the

IP Address

of the computer to be in the

DMZ

.

DMZ

IP Address:

DMZ:

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DI-624M User’s Manual

D-Link Systems, Inc.

Using the Configuration Menu

Performance

Auto

is the default selection. Select from the drop down menu.

100%

is the default selection. Select from the drop down menu.

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 2432. 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 2346 byte setting will be fragmented before

transmission. 2346 is the default setting.

TX Rate:

Transmit Power:

RTS Threshold:

Beacon Interval:

Fragmentation:

Note: These features will be available in future firmware releases.

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DI-624M User’s Manual

D-Link Systems, Inc.

Using the Configuration Menu

(Delivery Traffic Indication Message)

3

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.

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 throughput.

None: CTS is typically used in a pure 802.11g environment. If

CTS is set to “None” in a mixed mode environment populated

by 802.11b 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.

CTS Mode:

Preamble Type:

DTIM Interval:

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DI-624M User’s Manual

D-Link Systems, Inc.

Using the Configuration Menu

At this page, the DI-624M administrator can change the system password. There are

two accounts that can access the Broadband Router’s Web-Management interface. They

are admin and user. Admin has read/write access while user has read-only access.

User can only view the settings but cannot make any changes.

Admin

Tools

The Advanced tab provides the following options: Admin, Time, System, Firmware,

and Misc.