D-Link DWL-1750 User Manual

D-Link AirPremier

DWL-1750

Outdoor 2.4 GHz Wireless Router/Bridge

Manual

This product should be installed ONLY by experienced, professional installers who are familiar with local building and safety codes, and wherever applicable, are licensed by the appropriate authorities. Failure to do so may void the warranty and may expose the user or the service provider to legal and financial liabilities.

Building Networks for People

Contents

Package Contents ............................................................................... 3

Introduction........................................................................................... 4

Connections......................................................................................... 5

Outdoor Installation............................................................................... 6

Grounding ............................................................................................ 6

Antenna ............................................................................................... 7

Features .............................................................................................. 8

Network Layout .................................................................................... 9

Using the Configuration Utility..............................................................11

Networking Basics ............................................................................. 33

Frequently Asked Questions............................................................... 48

Troubleshooting.................................................................................. 50

Appendix I: Telnet Configuration (optional) .......................................... 55

Appendix 2: Boot Code Firmware Upgrade........................................ 64

Technical Specifications ..................................................................... 76

Contacting Technical Support ............................................................. 79

Warranty and Registration .................................................................. 80

Package Contents

Contents of Package:

D-Link AirPremier DWL-1750

Outdoor 2.4GHz Wireless Bridge Inline Power Injector

5 6 7 8 9

If any of the above items are missing, please contact your reseller.

AC Power Cord MIL-C-5015 style RS232 Console Port Cable

Grounding Wire Crossover Ethernet Cable Reverse Polarity-N Female RF Cable 30M MIL-C-5015 style Ethernet Cable Wall Mounting Kit Mast Mounting Kit Manual on CD

Introduction

The DWL-1750 conforms to the 802.11 standard and covers a large operating distance, providing an 11Mbps outdoor WLAN which enables users to access the Internet or an organization network.s

The D-Link AirPremier DWL-1750 features a die-cast watertight housing and a built-in lightning protector to protect it from harsh environmental conditions, including extreme variance in temperature. It also includes Power over Ethernet (PoE) and a unique outdoor remote-mounted design for easy installation.

The DWL-1750 is suitable for manufacturing plants, industrial sites, military bases, universities, hotels, airports and golf courses.

With a built-in firewall, the DWL-1750 can operate as a NAT inbound virtual server and provides IP based access control. Denial of Service (DoS) protection is also included with the DWL-1750 to prevent the wireless network from being hacked. The DWL-1750 is easily managed via a web-based user interface, Telnet, or RS-232 console configuration. The DWL-1750 can also be managed remotely through SNMP (MIB I & MIB II) support.

System Requirements for Configuration:

Computers with Windows, Macintosh, or Linux-based

operating systems with an installed Ethernet adapter

Internet Explorer Version 6.0 or Netscape Navigator

Version 6.0 and Above

Connections

PoE Power Injector

Attach one end of the power cord to the power port; attach the other end to the wall outlet.

Special Ethernet Port

Connect one end of the MIL-C-5015 Ethernet Cable into this port; connect the other end into the Power and Data Output Port on the

Inline Power Injector.

Reverse Polarity

-N Type Connector for

connecting the antenna or RF cable.

Data Input Port

Connect one end of the cross-over Ethernet cable to this port; connect the other end to the Ethernet port on the computer.

Special serial port (optional)

Connect one end of the MIL-C-5015 style RS232 console port cable to this port; connect the other end to a Serial Port on a computer that is running a terminal emulation program. Set the terminal to 15200 Baud, No Parity, 8 data bits, 1 stopbit and ANSI compatible.

Note: This connection is optional. Use this console connection only if you are configuring the DWL-1750 via the console.

Power & Data Output Port

Attach one end of the special Ethernet cable to this port; attach the other end to the Special Ethernet Port on the DWL-1750.

Outdoor Installation

The DWL-1750 can be mounted on the side of a building or mounted to a mast as shown above. A wall mount is a convenient location if the roof overhang is not excessive and/or the location is high enough to provide a clear line of sight.

Grounding

A safety grounding system is necessary to protect your outdoor installation from lightning strikes and the build-up of static electricity. Direct grounding of the antenna mast and the DWL-1750 is very important. The grounding system must comply with the National Electrical Code and the safety standards that apply in your country. Always check with a qualified electrician if you do not know how to properly ground the DWL-1750.

Antenna Mast Requirements

To accommodate the outdoor antennas, the antenna mast must satisfy the following requirements:

The construction of the mast must be of a sturdy, weatherproof and

no corrosive material like examples of galvanized or stainless steel construction pipe.

Typical diameter of the mast should be between 35 mm (1.4 in.) and

41 mm (1.625 in.). Subjecting to the type of antenna that you intend to install other diameters may be possible as well.

The height of the antenna mast must be sufficient to allow the

antenna to be installed at least 1.5 m (5 ft.) above the peak of roof. If the roof is metal, then the height of the antenna should be a minimum of 3 m (10 ft) above the roof.

The mast or wall-bracket must be free from any substance that may

avoid a good electrical connection with the antenna; for example, paint.

Antenna Alignment

For optimal performance of your wireless link, make sure that the antennas are properly aligned (facing one another “eye-to-eye”). To align the antennas:

Use a pair of binoculars and/or a map of the area and compass to

point the antennas to one another. Use the Utility - “Wireless Link Info” in the Web Configure as

described in the “Utility” section to analyze the radio link quality. The “Wireless Link Info” will enable you to display the levels of signal strength and link quality. Looking at the Wireless Link Info screen, you can interactively optimize antenna alignment if required, by making small modifications in the antenna orientation.

Alternatively, consult a professional Antenna Installation Service to

optimize the antenna alignment. Omni-directional antennas are characterized by a wide radiation

pattern. Therefore alignment of this type of antennas is less critical than for directional antennas.

Features

Ideal for Internet Hotspots- Provides outdoor users with wireless Internet

Access Robust Outdoor Housing - Designed for harsh outdoor environments, with

die-cast, watertight housing and built-in lightning protector 2 Different Operation modes - Capable of operatingas either a Router or a

Bridge. Compatible with the 802.11b standard to provide a wireless data rate of up

to 11Mbps.

Better security

64/128 bit WEP

Built-in Firewall

Multiple Management options - Great for enterprise wireless

networkmanagement

Web-based configuration

Telnet

RS-232 Console configuration

SNMP (MIB I & MIB II) support

Operates in the 2.4GHz frequency range

Easy Installation with the Setup Wizard

Network Layout

Mount the DWL-1750 to an unobstructed wall or mast. Make sure that is is grounded.

Connect the DWL-1750 to the Inline Power Injector

Connect a Hub, Switch or Router to the Inline Power Injector

Connect a desktop computer to the router. You can use this Ethernet connected computer to configure and manage the DWL-1750

Network Layout (continued)

Upon completion of the installation, laptops, with wireless network cards installed, will be able to connect wirelessly to the DWL-1750 in order to surf the Internet.

For more information regarding installation, please see the sections on Ground- ing and Connections in this manual, and the Quick Installation Guide that came with your purchase.

Using the Configuration Utility

To configure the DWL-1750, use a computer which is connected to the DWL-1750 with an Ethernet cable (see the Network Layout diagram).

First, disable the Access the Internet using a proxy server function.

To disable this function, go to Control Panel > Internet Options > Connections > LAN Settings and uncheck the enable box.

Start your Microsoft Internet Explorer web browser program.

Type the IP Address and HTTP port of the DWL-1750 (the default port

is 2000; the IP is 192.168.0.50) in the address field (http://

192.168.0.50:2000/) and press Enter. Make sure that the IP Addresses of the DWL-1750 and your computer are in the same subnet.

http://192.168.0.50:2000/

Using the Configuration Utility (continued)

After the connection is established, you will see the user identification window as shown.

Note: if you have changed the default IP Address assigned to the DWL-1750, make sure to enter the correct IP Address.

Type admin in the User Name field

Click OK

The Home>Wizard screen will appear. Please refer to the

Quick Installation Guide for more infor-

mation regarding the Setup Wizard.

Connect to 192.168.0.1

Home > Wizard

Using the Configuration Utility (continued)

Home > Wireless

SSID-

Service Set Identifier (SSID) is the name designated for a specific wireless local area network (WLAN). The SSID’s factory default setting is default. The SSID can be easily changed to connect to an existing wireless network or to establish a new wireless network.

Channel- 6 is the default channel. All devices on the network must share the same

channel.

WEP-

Wired Equivalent Privacy (WEP) is a wireless security protocol for Wireless Local Area Networks (WLAN). WEP provides security by encrypting the data that is sent over the WLAN. Select Enabled or Disabled.

Disabled is the default setting. (Note: If you enable encryption on the DWL-1750 make sure to also enable encryption on all the wireless clients or wireless connection will not be established).

WEP Encryption- Select the level of encryption desired: 64-bit, or 128-bit

Key Type- Select HEX or ASCII Passphrase-

Hexadecimal digits consist of the numbers 0-9 and the letters A-F ASCII (American Standard Code for Information Interchange) is a code for representing

English letters as numbers from 0-127

Keys 1-4-

Apply- Click Apply to save the changes

Select HEX in the Key Type field and enter the passphrase here

Input up to 4 WEP keys; select the one you wish to use

Using the Configuration Utility (continued)

Home > Mode > Central Dynamic IP Router

Select Central Dynamic IP Router if you are locating the router in a central position to obtain an IP Address automatically from your ISP or corresponding wireless network. Most Cable Modem Users will select this option.

WAN - Ethernet

Host Name-

NAPT-

LAN - Wireless

IP Address-

Subnet Mask-

Apply-

You may enter the Host Name here (optional)

Select Disable or Enable. NAPT is a form of NAT; it provides a type of firewall by hiding internal IP Addresses and it works as an inbound virtual server, with IP based access control

Enter the wireless IP Address of the DWL-1750. The default IP Address is 192.168.1.50

Enter the subnet mask. All devices on your network should have the same subnet mask

Click Apply if you have made any changes

Using the Configuration Utility (continued)

Home > Mode > Central Static IP Router

Select Central Static IP Router mode if the DWL-1750 will be in a central location. In this mode you will enter the Static IP Address that is provided to you by your ISP.

WAN - Ethernet

IP Address-

Enter the IP Address assigned by your ISP

All devices in the network must have the same Subnet MaskSubnet Mask-

ISP Gateway Address-

DNS Server Address-

NAPT- Select Disable or Enable. NAPT is a form of NAT; it provides

LAN - Wireless

IP AddressSubnet Mask Apply-

Your ISP will provide this information

a type of firewall by hiding internal IP Addresses and it works as an inbound virtual server, with IP based access control

Enter the IP Address assigned by your ISP All devices in the network must have the same Subnet Mask

Click Apply if you have made any changes

Using the Configuration Utility (continued)

Home > Mode > Central PPPoE Router > Dynamic or Static PPPoE

Select Central PPPoE Router mode if your ISP uses PPPoE. Most DSL users will select this option.

WAN - PPPoE

Dynamic or Static PPPoE-

User NamePassword-

Retype Password-

Service Name -

IP Address-

Maximum Idle Time-

NAPT-

LAN - Wireless

IP Address-

Select the appropriate PPPoE used by your ISP The default User Name is user

Enter a password

Re-enter the password

This field is optional

For Static PPPoE, enter an IP Address, provided by your ISP

Select the maximum idle time

Select Disable or Enable. NAPT is a form of NAT; it provides a type of firewall by hiding internal IP Addresses and it works as an inbound virtual server, with IP based access control

Enter the IP Address assigned by your ISP

Subnet Mask-

Click Apply-

All devices in the network must have the same Subnet Mask Click Apply if you have made any changes

Using the Configuration Utility (continued)

Home > Mode > Remote Static IP Router

Select this option to input the Remote Static IP Address provided by your ISP

WAN - Wireless

Subnet Mask-

ISP Gateway Address-

DNS Server Address-

NAPT-

LAN - Ethernet

IP AddressSubnet Mask-

Click Apply-

Input the IP Address assigned by your ISPIP Address-

Input the Subnet Mask; all devices in the network must use the same Subnet Mask

Your ISP will provide this information

Select Disable or Enable. NAPT is a form of NAT; it provides a type of firewall by hiding internal IP Addresses and it works as an inbound virtual server, with IP based access control

The default IP Address of the Ethernet port is 192.168.0.50

All devices in the network must have the same Subnet Mask Click Apply if you have made any changes

Using the Configuration Utility (continued)

Home > Mode > Remote Bridge

Bridge IP

Subnet Mask-

ISP Gateway Address-

DNS Server Address-

Apply-

Input the IP Address assigned by your ISPIP Address-

Input the Subnet Mask; all devices in the network must use the same Subnet Mask

Your ISP will provide this information

Click Apply if you have made any changes

Using the Configuration Utility (continued)

Home > Mode > Central Bridge

Bridge IP

Subnet Mask-

ISP Gateway Address-

DNS Server Address-

Apply-

Input the IP Address assigned by your ISPIP Address-

Input the Subnet Mask; all devices in the network must use the same Subnet Mask

Your ISP will provide this information

Your ISP will provide this information Click Apply if you have made any changes

Using the Configuration Utility (continued)

Home > DHCP

DHCP stands for Dynamic Host Control Protocol. The DWL-1750 has a built-in DHCP server. The DHCP Server will automatically assign an IP Address to the computers on the LAN/private network. Be sure to set your computers to be DHCP clients by setting their TCP/IP settings to “Obtain an IP Address Automatically.” When you turn your computers ON, they will automatically load the proper TCP/IP settings provided by the DWL-1750. The DHCP Server will automatically allocate an unused IP Address from the IP Address pool to the requesting computer. You must specify the starting and ending address of the IP Address pool.

Trigger DHCP Service-

Default Gateway-

Net Mask- The subnet mask of the LAN interface

DHCP Start IP-

DHCP End IP- The ending IP Address for the DHCP server’s IP Assignment

Lease Time- The length of time for the DHCP lease Interface- Select Wireless or Ethernet

DHCP Client Table- Lists the DHCP clients connected to the DWL-1750. Click Re-

Apply-

Select Enable to use the DHCP feature of the DWL-1750. Select Disable to disable this function

Enter the wireless IP Address of the DWL-1750

The default subnet mask is 255.255.255.0 The starting IP Address for the DHCP server’s IP Assignment

fresh to update the list. The talbe will show the Host Name, IP Address, and MAC Address of the DHCP client computer.

Click Apply to save the changes.

Using the Configuration Utility (continued)

Advanced > Virtual Server

The DWL-1750 can be configured as a Virtual Server so that remote users accessing Web and FTP services via the public IP Address can be automatically redirected to local servers in the LAN (Local Area Network.) The DWL-1750 firewall feature filters out unrecognized packets to protect your LAN network so all computers networked with the DWL-1750 are invisible to the outside world. If you wish you can make some of the LAN computers accessible from the Internet by enabling Virtual Server. Each Virtual Service that is created will be listed at the bottom of the screen in the Virtual Servers List

NamePrivate IP-

Protocol Type-

The Name referencing the virtual service

The server computer in the LAN that will be providing virtual services The protocol used for the virtual service

Private PortPublic Port-

Schedule-

The port number of the service used by the Private IP computer The port number on the WAN side that will be used to access the

virtual service

Choose whether the service will be ON or OFF

Click Apply if you have made any changesApply-

Using the Configuration Utility (continued)

Advanced > Filters

Filters are used to deny or allow LAN computers from accessing the Internet using their MAC Addresses

Disable or Enable -

MAC Address - Enter the MAC Address of the wireless LAN user that will be

Apply-

MAC Address - Media Access Control Address

A unique hardware address that identifies a device on a network. It is assigned at the factory and cannot be changed. Usually you will find this address on a sticker on the device or packaging.

Click Enable to enable the MAC filter. By enabling the filter you allow access to the Internet to only those computers whose MAC Addresses are listed in the filter list. Computers not listed are blocked from the Internet.

allowed Internet access when the filter is enabled.

Click Apply if you have made any changes

Using the Configuration Utility (continued)

Advanced > Firewall

Firewall Rules is an advanced feature that is used to deny or allow traffic that passes through the DWL-1750. The Firewall Rules that you create will appear in the list at the bottom of the page. Please be sure to Click Apply, after you have made changes or additions.

Firewall Service-

Select Enabled to enable the Firewall Service feature

Rule NameSchedule-

ActionPriority-

Protocol-

IP-

Netmask-

Port-

Apply-

Enter the name for the Firewall Rule To schedule select OFF or ON

Choose to Accept or Deny the Firewall Rule Select the Priority status of the Firewall Rule

Select the Protocol of the Firewall Rule

Enter the IP Address of both the Source and the Destination of the Firewall Rule

Enter the Subnet Mask of both the Source and the Destination of the Firewall Rule

Enter the Port of both the Source and the Destination of the Firewall Rule

Click Apply if you have made any changes

Using the Configuration Utility (continued)

Advanced > Performance

Beacon Interval-

RTS Threshold-

Fragmentation-

SSID Broadcast- Enable the SSID Broadcast feature to announce the SSID across

Apply- Click Apply if you have made any changes.

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 250. If you encounter inconsistent data flow, only minor modifications should be made within the value range of 0-3000.

The fragmentation threshold, which is specified in bytes, determines whether packets will be fragmented. Packets exceeding the 1600 byte setting will be fragmented before transmission. 1600 is the default setting.

the network. Enabling this will allow you to use XP’s site survey tools. Disabling SSID Broadcast can be a useful security measure.

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