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National Instruments NI WAP-3701 User Manual

802.11g/b wireless ap/bridge/client
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NI WAP-3701/3711
User's Manual
First Edition, Sept 2007

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Summary of Contents for National Instruments NI WAP-3701

  • Page 1 NI WAP-3701/3711 User’s Manual First Edition, Sept 2007...

  • Page 2: Copyright Notice

    All rights reserved. Reproduction without permission is prohibited. Trademarks National Instruments or NI is a registered trademark of National Instruments Corporation. All other trademarks or registered marks in this manual belong to their respective manufacturers. Disclaimer Information in this document is subject to change without notice and does not represent a commitment on the part of NI.

  • Page 3: Table Of Contents

    Chapter 1 Introduction ...1-1 Overview ... 1-2 Package Checklist... 1-2 Product Features ... 1-2 Product Specifications ... 1-2 Chapter 2 Getting Started ...2-1 First-Time Installation and Configuration ... 2-2 Deploying the Access Point (AP) ... 2-5 Setting up Client Computers... 2-5 Configuring IEEE 802.11g-related Settings...
  • Page 4 Appendix C Regulatory Statement ... C-1 Appendix D Technical Support and Professional Services ... D-1...

  • Page 5: Chapter 1 Introduction

    The NI WAP-3701/3711 enables wireless users to access network resources wirelessly. The NI WAP-3701/3711 can authenticate and authorize wireless users by IEEE 802.1X and RADIUS, and communicate with a back-end RADIUS (Remote Authentication User Dial-In Service) server to determine if a wireless user is allowed to access the wireless network..

  • Page 6: Overview

    Industrial Wireless application. Package Checklist The NI WAP-3701/3711 is shipped with the following items. If any of these items is missing or damaged, please contact your customer service representative for assistance. 1 × NI WAP-3701/3711 802.11g/b Wireless AP/Bridge/Client 2 ×...
  • Page 7 NI WAP-3701/3711 User’s Manual Software Features Protocols Configuration Client OS Support Interface Antenna RJ45 port LED Indicators Power Input Voltage Input Current (@24V) Connection Overload Current Protection Reverse Polarity Protection Mechanical Casing Installation Environment Operating Temperature Storage Temperature Ambient Relative Humidity...

  • Page 8: Chapter 2 Getting Started

    This chapter explains how to install the NI WAP-3701/3711 for the first time. The following topics are covered: First-Time Installation and Configuration Deploying the Access Point (AP) Setting up Client Computers Configuring IEEE 802.11g-related Settings Configuring TCP/IP-related Settings Confirming the Settings of the AP and Client Computers Checking if the IEEE 802.11g-related Settings Work...

  • Page 9: First-Time Installation And Configuration

    Checklist are in the box. In addition, you will need access to a notebook computer or PC equipped with an Ethernet port. The NI WAP-3701/3711 has a default IP address that you must use when connecting to the NI WAP-3701/3711 for the first time.
  • Page 10 Step 5: Select the Operational Mode for NI WAP-3701/3711 By default, the NI WAP-3701/3711’s operation mode is set to AP/Bridge. If you want to change the setting, click on General operation mode, and then click on Save to activate the change.
  • Page 11 The number of available RF channels depends on local regulations; therefore, you will need to choose an appropriate regulatory domain to comply with local regulations. The SSID of a wireless client computer and the SSID of the NI WAP-3701/3711 must be identical for them to be able to communicate with each other.

  • Page 12: Deploying The Access Point (Ap)

    Connect the AP to an Ethernet LAN through an Ethernet switch or hub. If you are configuring a pair of NI WAP-3701/3711 units for AP mode for a dynamic or static bridging application and external high-gain directional antennas are used, it is difficult to adjust alignments of the antennas when the two devices are separated by a long distance.

  • Page 13: Configuring Tcp/Ip-Related Settings

    1. Launch the configuration/monitoring utility provided by the vendor of the installed WLAN NIC. 2. Check if the client computer is associated to an NI WAP-3701/3711. If the check fails, see Appendix B, “Wireless Settings Problems,” to troubleshoot the problem.
  • Page 14 NI WAP-3701/3711 User’s Manual 3. Type “ping default_gateway”, where default_gateway is the IP address of the default gateway of the wireless client computer, and then press Enter. If the gateway responds, go to the next step; otherwise, see Appendix B, “TCP/IP Settings Problems,” to troubleshoot the problem.

  • Page 15: Web Console Configuration

    Web Console Configuration Chapter 3 In this chapter, we will explain each Web management page of the Web-based Network Manager. The following topics are covered in this chapter: Overview Menu Structure Save, Save & Restart, and Cancel Buttons Home and Refresh Buttons Viewing Status Associated Wireless Clients Current DHCP Mappings...

  • Page 16: Overview

    DHCP Mappings. Current IP-MAC address mappings of the built-in DHCP server. System Log. System events log. Link Monitor. When the NI WAP-3701/3711 is in AP Client mode, this page shows the signal strength and link quality of the wireless link to its associated access point.

  • Page 17: Save, Save & Restart, And Cancel Buttons

    There are three buttons at the bottom of each page for configuring settings—Save, Save & Restart, and Cancel. Clicking Save stores changes to the NI WAP-3701/3711’s memory and returns you to the home page. Clicking Save & Restart stores the changes to the NI WAP-3701/3711’s memory and restarts the NI WAP-3701/3711 to activate the new settings.

  • Page 18: Current Dhcp Mappings

    Link Monitor (AP Client mode only) When the NI WAP-3701/3711 is in AP Client mode, you can use the Link Monitor status page to monitor the link quality and signal strength sensed by its RF module. Larger values mean better wireless connectivity to the associated Access Point.

  • Page 19: General Operations

    This mode is for Dynamic LAN-to-LAN Bridging. The AP Client automatically establishes bridge links with APs from any vendor. In either mode, the NI WAP-3701/3711 forwards packets between its Ethernet interface and wireless interface for wired hosts on the Ethernet side and wireless host(s) on the wireless side.

  • Page 20: Administrative Password

    (note that the default user Name and Password or “admin” and “root,” respectively). Managing the Firmware Firmware management operations for the NI WAP-3701/3711 include “Firmware Upgrade,” “Configuration Backup,” “Configuration Restore,” and “Configuration Reset (Factory Defaults).” Firmware upgrade, configuration backup, and configuration restore can be achieved via HTTP or TFTP.

  • Page 21: Backing Up And Restoring Configuration Settings By Http

    NI WAP-3701/3711 User’s Manual Backing up and Restoring Configuration Settings by HTTP To back up the configuration of the NI WAP-3701/3711 by HTTP (i.e., export the configuration to a file): 1. Click on Back Up 2. You will be prompted to open or save the configuration file. Click on Save.
  • Page 22 After the firmware is upgraded, be sure to delete the contents of the Web browser cache so that the Web management pages can be shown correctly. A failed upgrade may corrupt the firmware and cause the NI WAP-3701/3711 to fail. When this occurs, contact NI technical support for assistance.

  • Page 23: Backing Up And Restoring Configuration Settings By Tftp

    2. Connect the computer and one of the LAN Ethernet switch ports with a normal Ethernet cable. 3. Configure the IP address of the computer so that the computer and the NI WAP-3701/3711 are on the same IP sub-net.

  • Page 24: Configuring Tcp/Ip-Related Settings

    DHCP server on the LAN (Obtain from a DHCP Server). If you are manually setting the IP address, Subnet mask, and Default gateway settings, set them appropriately, so that they comply with your LAN environment. In addition, you can specify the Host name and Domain (DNS suffix) of the NI WAP-3701/3711. Web Console Configuration 3-10...

  • Page 25: Dhcp Server (Ap/Bridge Modes Only)

    DHCP Server (AP/Bridge modes only) Basic The NI WAP-3701/3711 can assign IP addresses to client computers automatically by DHCP. In this section of the management page, you can specify the Default gateway, Subnet mask, Primary DNS server, and Secondary DNS server settings that will be sent to a client at its request.

  • Page 26: Configuring Ieee 802.11G-Related Settings

    If you experience RF interference, you may want to reduce the Data rate to ensure a more reliable wireless transmission. In most cases, leave the setting at Auto. The transmit power of the RF module on the NI WAP-3701/3711 can be adjusted so that the RF coverage of the NI WAP-3701/3711 can be changed.

  • Page 27: Association Control

    NI WAP-3701/3711. If the traffic load of the NI WAP-3701/3711 exceeds the load specified in the Block clients if traffic load exceeds setting, no more wireless clients can associate with the NI WAP-3701/3711.
  • Page 28 The NI WAP-3701/3711 can have up to 6 WDS links to other APs or wireless bridges. To enable a WDS link: 1. Specify the MAC address of the NI WAP-3701/3711 at the other end of the WDS link. 2. Select the corresponding Enabled check box.

  • Page 29: Security

    NI WAP-3701/3711 User’s Manual WARNING Be sure to eliminate loops from networks that consist of wireless bridges, Ethernet switches, Ethernet links, and WDS links. If any loops exist, packets will circle around the loops and network performance will be seriously degraded.
  • Page 30 NI WAP-3701/3711 User’s Manual STA 1 AP 1 WCI: This AP Only Behavior of the “This AP Only” wireless client isolation option STA 1 AP 1 WCI: All APs in This Subnet Behavior of the “All APs on This Subnet” wireless client isolation option When AP 1 and AP 2 are using the “This AP Only”...
  • Page 31 NI WAP-3701/3711 User’s Manual A total of 7 security modes are available with the different NI WAP-3701/3711 models: Open System. No authentication, no data encryption. Static WEP. WEP (Wired Equivalent Privacy) keys must be configured manually. Static TKIP (WPA-PSK). Only TKIP (Temporal Key Integrity Protocol) mechanism of WPA (Wi-Fi Protected Access) is enabled.
  • Page 32 With MAC-Address-Based Access Control, you can specify the wireless client computers that are permitted or not permitted to associate with the NI WAP-3701/3711. When the table type is set to inclusive, entries in the table are permitted to associate with the NI WAP-3701/3711. When the table type is set to exclusive, entries in the table are not permitted to associate with the NI WAP-3701/3711.

  • Page 33: Ieee 802.1X/Radius (Ap Mode Only)

    NI WAP-3701/3711 User’s Manual Sample MAC ACL file To download a MAC ACL file from a TFTP server: 1. Specify the IP address of the TFTP server in the TFTP server IP address text box. 2. Specify the name of the MAC ACL file on the TFTP server in the MAC ACL file name text box.
  • Page 34 NI WAP-3701/3711 User’s Manual Web Console Configuration IEEE 802.1X-Compliant Wireless Client Wireless AP user authentication Internet Wireless AP RADIUS User Server Database user authentication IEEE 802.1X and RADIUS An access point supporting IEEE 802.1X can be configured to communicate with two RADIUS servers.

  • Page 35: Configuring Advanced Settings

    NI WAP-3701/3711 User’s Manual Configuring Advanced Settings Packet Filters The NI WAP-3701/3711 provides layer 2 (Ethernet Type Filters), layer 3 (IP Protocol Filters), and layer 4 (TCP/UDP Port Filters) filtering capabilities. The configuration processes for the filters are similar. Functionality: whether this filtering capability is enabled or disabled.

  • Page 36: Management

    HTTP. When the UPnP functionality is enabled, you can see the AP in My Network Places of Windows XP. The NI WAP-3701/3711 can be given a friend name that will be shown in My Network Places. Double-clicking the icon in My Network Places that stands for the AP will launch the default Web browser for you to configure the NI WAP-3701/3711.
  • Page 37 NI WAP-3701/3711 User’s Manual NOTE The SNMP Authentication Failure trap is issued when using an incorrect community string to manage the AP via SNMP and the SNMP MIB II OID, snmpEnableAuthenTraps, is enabled (disabled by default). SNMP The SNMP (Simple Network Management Protocol) functionality can be disabled, and you can specify the name (used as a password) of the read-only and read-write community.

  • Page 38: Appendix A Default Settings

    Press the Reset (SF-Reset, or Soft-Reset) switch on the housing of a powered-on AP to reset the configuration settings to factory-default values. Setting Name Global User Name Password IEEE 802.11g Regulatory Domain Channel Number SSID SSID Broadcasts Transmission Rate Transmit Power MAC Address Security Mode Selected WEP Key...
  • Page 39 NI WAP-3701/3711 User’s Manual LAN Interface Method of obtaining an IP Address IP Address Subnet Mask Default Gateway DHCP Server Management UPnP System Log SNMP SNMP read community SNMP write community TELNET Set manually 192.168.127.253 255.255.255.0 0.0.0.0 Disabled Enabled Local Log...

  • Page 40: Appendix B Troubleshooting

    Is the wireless client set in infrastructure mode? Check the operating mode of the WLAN NIC. Is the SSID of the WLAN NIC identical to that of the prospective NI WAP-3701/3711? Check the SSID setting of the WLAN NIC and of the NI WAP-3701/3711.

  • Page 41: Tcp/Ip Settings Problems

    NI WAP-3701/3711 User’s Manual TCP/IP Settings Problems IEEE 802.11g Stage A Client Computer Communication stages for a client to reach its correspondent host For a wireless client computer to communicate with a host on the Internet by the host’s domain name (e.g., http://www.wi-fi.com), it first sends a DNS request to a DNS server on the Internet.

  • Page 42: Unknown Problems

    NI WAP-3701/3711 User’s Manual Make sure the wireless settings of the wireless client computer and of the AP match. Are the IP address of the client computer and the IP address of the AP on the same IP subnet? Use WinIPCfg.exe or IPConfig.exe to see the current IP address of the client computer.
  • Page 43 NI WAP-3701/3711 User’s Manual The NI WAP-3701/3711 stops working and does not respond to Web management requests. The firmware of the AP may be stuck in an incorrect state. Unplug the power connector from the power jack, and then re-plug the connector to restart the AP.

  • Page 44: Federal Communication Commission Interference Statement

    Federal Communication Commission Interference Statement This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiated radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
  • Page 45 NI WAP-3701/3711 User’s Manual Regulatory Statement Safety This equipment is designed with the utmost care for the safety of those who install and use it. However, special attention must be paid to the dangers of electric shock and static electricity when working with electrical equipment.
  • Page 46 Technical Support and Professional Appendix D Visit the following sections of the National Instruments Web site at ni.com for technical support and professional services: Support— Online technical support resources at ni.com/support include the following: Self-Help Resources— For answers and solutions, visit the award-winning National...
  • Page 47 Turkey 90 212 279 3031, United Kingdom 44 (0) 1635 523545 For further support information, refer to the Cross referenceolor:Blueparatext appendix. To comment on National Instruments documentation, refer to the National Instruments Web site at ni.com/info and enter the info code feedback.

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