Moxa WAPA003 IEEE 802.11a/b/g miniPCI module User Manual WAPA003 UserMan 20100804

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AirWorks AWK-3121 User’s Manual Fifth Edition, May 2010 www.moxa.com/product © 2010 Moxa Inc. All rights reserved. Reproduction without permission is prohibited.

Table of Contents 1.Introduction ...................................................................................................................................... 1-1Overview ........................................................................................................................................... 1-2Package Checklist ............................................................................................................................... 1-2Product Features ................................................................................................................................ 1-2Product Specifications ......................................................................................................................... 1-3Functional Design ............................................................................................................................... 1-5LED Indicators ............................................................................................................................ 1-5Beeper ....................................................................................................................................... 1-6Reset Button ............................................................................................................................... 1-6Relay (Digital Output) .................................................................................................................. 1-62.Getting Started ................................................................................................................................. 2-1First-time Installation and Configuration ................................................................................................ 2-2Communication Testing ....................................................................................................................... 2-3Function Map ..................................................................................................................................... 2-53.Web Console Configuration ............................................................................................................... 3-1Web Browser Configuration .................................................................................................................. 3-2Overview ........................................................................................................................................... 3-3Basic Settings .................................................................................................................................... 3-4System Info Settings ................................................................................................................... 3-4Network Settings ......................................................................................................................... 3-5Time Settings ............................................................................................................................. 3-5Wireless Settings ................................................................................................................................ 3-7Operation Mode .................................................................................................................................. 3-7Basic Wireless Settings ........................................................................................................................ 3-8WLAN Security Settings ............................................................................................................. 3-10Advanced Wireless Settings ........................................................................................................ 3-16WLAN Certification Settings (for EAP-TLS in Client mode only) ........................................................ 3-19Advanced Settings ............................................................................................................................ 3-20Using Virtual LAN ...................................................................................................................... 3-20Configuring Virtual LAN .............................................................................................................. 3-21DHCP Server (for AP mode only) ................................................................................................. 3-22Packet Filters ............................................................................................................................ 3-23RSTP Settings (for AP mode only)................................................................................................ 3-25SNMP Agent ............................................................................................................................. 3-27Auto Warning Settings ....................................................................................................................... 3-29System Log .............................................................................................................................. 3-29Syslog ..................................................................................................................................... 3-30E-mail ...................................................................................................................................... 3-30Relay ....................................................................................................................................... 3-32Trap ........................................................................................................................................ 3-32Status ............................................................................................................................................. 3-33Associated Client List (for AP mode only)...................................................................................... 3-33DHCP Client List (for AP mode only) ............................................................................................ 3-34System Log .............................................................................................................................. 3-34Relay Status ............................................................................................................................. 3-35DI and Power Status .................................................................................................................. 3-35Wireless Status ......................................................................................................................... 3-35Maintenance .................................................................................................................................... 3-36Console Settings ....................................................................................................................... 3-36Ping ......................................................................................................................................... 3-36Firmware Upgrade ..................................................................................................................... 3-36Config Import Export ................................................................................................................. 3-37Load Factory Default .................................................................................................................. 3-37Password ................................................................................................................................. 3-37Misc. Settings ........................................................................................................................... 3-38Save Configuration ........................................................................................................................... 3-38Restart ............................................................................................................................................ 3-39Logout ............................................................................................................................................ 3-394.Software Installation and Configuration ........................................................................................... 4-1Overview ........................................................................................................................................... 4-2AWK Search Utility .............................................................................................................................. 4-2Installing AWK Search Utility ........................................................................................................ 4-2Configuring AWK Search Utility ..................................................................................................... 4-45.Other Console Considerations ........................................................................................................... 5-1RS-232 Console Configuration (115200, None, 8, 1, VT100) .................................................................... 5-2Configuration by Telnet and SSH Consoles ............................................................................................. 5-3Configuration by Web Browser with HTTPS/SSL ...................................................................................... 5-4

Disabling Telnet and Browser Access ..................................................................................................... 5-5A.References ........................................................................................................................................ A-1Wireless Distribution System (WDS) ..................................................................................................... A-2Beacon .............................................................................................................................................. A-3DTIM ................................................................................................................................................. A-3Fragment ........................................................................................................................................... A-3RTS Threshold .................................................................................................................................... A-3STP and RSTP .................................................................................................................................... A-4The STP/RSTP Concept ................................................................................................................ A-4Differences between RSTP and STP ................................................................................................ A-4B.Supporting Information .................................................................................................................... B-1About This User’s Manual ..................................................................................................................... B-2DoC (Declaration of Conformity) ........................................................................................................... B-2Federal Communication Commission Interference Statement ............................................................ B-2R&TTE Compliance Statement ....................................................................................................... B-3Firmware Recovery ............................................................................................................................. B-4

1 1. Introduction The AirWorks AWK-3121 enables wireless users to access network resources wirelessly. The AWK-3121 is rated to operate at temperatures ranging from 0 to 60°C for standard models and -40 to 75°C for wide temperature models, and is rugged enough for any harsh industrial environment. The following topics are covered in this chapter:  Overview  Package Checklist  Product Features  Product Specifications  Functional Design ¾ LED Indicators ¾ Beeper ¾ Reset Button ¾ Relay (Digital Output)

AirWorks AWK-3121 Introduction 1-2Overview The AWK-3121 Access-Point/Bridge and AP Client is ideal for applications that are hard to wire, too expensive to wire, or use mobile equipment that connects to a TCP/IP network. The AWK-3121 can operate at temperatures ranging from 0 to 60°C for standard models and -40 to 75°C for extended temperature models, and is rugged enough for any harsh industrial environment. Installation is easy, with either DIN-Rail mounting or wall mounting in distribution boxes. The DIN-Rail/wall mounting capability, wide operating temperature range, and IP30 housing with LED indicators make the AWK-3121 a convenient yet reliable solution for any industrial wireless application. Package Checklist Moxa’s AWK-3121 is shipped with the following items. If any of these items is missing or damaged, please contact your customer service representative for assistance. • 1 AWK-3121 • Swivel-type antennas (2dBi, RP-SMA, 2.4&5GHz) • Quick Installation Guide • Software CD • Moxa Product Warranty Card • Cable holder with 1 screw • Protective caps NOTE The above items come with the standard AWK-3121 model, but the package contents may vary for customized versions. Product Features • IEEE802.11a/b/g compliant • Three-in-one design (AP/Bridge/Client) • Advanced wireless security: ¾ 64-bit and 128-bit WEP/WPA/WPA2 ¾ SSID Hiding/IEEE 802.1X/RADIUS ¾ Packet access control & filtering • STP/RSTP support for network system redundancy • Long-distance transmission support • Turbo RoamingTM enables rapid handover (Client mode) • Dedicated antenna selection • Free firmware update for more advanced functions • RS-232 console management • 2DI+1DO for on-site monitoring and warnings • Wide -40 to 75°C operating temperature range (-T model) • Redundant 24 VDC power inputs or IEEE802.3af Power over Ethernet • DIN-Rail or wall mounting • IP30 protected high-strength metal housing

AirWorks AWK-3121 Introduction 1-3Product Specifications WLAN Interface Standards: IEEE 802.11a/b/g/h for Wireless LAN IEEE 802.11i for Wireless Security IEEE 802.3u for 10/100BaseT(X) IEEE 802.3af for Power-over-Ethernet IEEE 802.1D for Spanning Tree Protocol IEEE 802.1w for Rapid STP IEEE 802.1Q VLAN Spread Spectrum and Modulation (typical): • DSSS with DBPSK, DQPSK, CCK • OFDM with BPSK, QPSK, 16QAM, 64QAM • 802.11b: CCK @ 11/5.5 Mbps, DQPSK @ 2 Mbps, DBPSK @ 11 Mbps • 802.11a/g: 64QAM @ 54/48 Mbps, 16QAM @ 36/24 Mbps, QPSK @ 18/12 Mbps, BPSK @ 9/6 Mbps Operating Channels (central frequency): US: 2.412 to 2.462 GHz (11 channels) 5.18 to 5.24 GHz (4 channels) EU: 2.412 to 2.472 GHz (13 channels) 5.18 to 5.24 GHz (4 channels) JP: 2.412 to 2.472 GHz (13 channels, OFDM) 2.412 to 2.484 GHz (14 channels, DSSS) 5.18 to 5.24 GHz (4 channels for W52) Security: • SSID broadcast enable/disable • Firewall for MAC/IP/Protocol/Port-based filtering • 64-bit and 128-bit WEP encryption, WPA /WPA2-Personal and Enterprise (IEEE 802.1X/RADIUS, TKIP and AES) Transmission Rates: 802.11b: 1, 2, 5.5, 11 Mbps 802.11a/g: 6, 9, 12, 18, 24, 36, 48, 54 Mbps TX Transmit Power (for hardware revision 1.2): 802.11b: Typ. 23±1.5 dBm @ 1 to 11 Mbps 802.11g: Typ. 20±1.5 dBm @ 6 to 24 Mbps, Typ. 19±1.5 dBm @ 36 Mbps, Typ. 18±1.5 dBm @ 48 Mbps, Typ. 17±1.5dBm @ 54 Mbps 802.11a: Typ. 18±1.5 dBm @ 6 to 24 Mbps, Typ. 16±1.5 dBm @ 36 to 48 Mbps, Typ. 15±1.5 dBm @ 54 Mbps RX Sensitivity (for hardware revision 1.2): 802.11b: -97 dBm @ 1 Mbps, -94 dBm @ 2 Mbps, -92 dBm @ 5.5 Mbps, -90 dBm @ 11 Mbps 802.11g: -93 dBm @ 6 Mbps, -91 dBm @ 9 Mbps, -90 dBm @ 12 Mbps, -88 dBm @ 18 Mbps, -84 dBm @ 24 Mbps, -80 dBm @ 36 Mbps, -76 dBm @ 48 Mbps, -74 dBm @ 54 Mbps 802.11a: -90 dBm @ 6 Mbps, -89 dBm @ 9 Mbps, -89 dBm @ 12 Mbps, -85 dBm @ 18 Mbps, -83 dBm @ 24 Mbps, -79 dBm @ 36 Mbps, -75 dBm @ 48 Mbps, -74 dBm @ 54 Mbps

AirWorks AWK-3121 Introduction 1-4TX Transmit Power (for hardware revisions 1.0 and 1.1): 802.11b: Typ. 18±1.5 dBm @ 1 to 11 Mbps 802.11g: Typ. 18±1.5 dBm @ 6 to 24 Mbps, Typ. 16±1.5 dBm @ 36 to 48 Mbps, Typ. 15±1.5 dBm @ 54 Mbps 802.11a: Typ. 16±1.5 dBm @ 6 to 24 Mbps, Typ. 14±1.5 dBm @ 36 to 48 Mbps, Typ. 13±1.5 dBm @ 54 Mbps RX Sensitivity (for hardware revisions 1.0 and 1.1): 802.11b: -92 dBm @ 1 Mbps, -90 dBm @ 2 Mbps, -88 dBm @ 5.5 Mbps, -84 dBm @ 11 Mbps 802.11g: -87 dBm @ 6 Mbps, -86 dBm @ 9 Mbps, -85 dBm @ 12 Mbps, -82 dBm @ 18 Mbps, -80 dBm @ 24 Mbps, -76 dBm @ 36 Mbps, -72 dBm @ 48 Mbps, -70 dBm @ 54 Mbps 802.11a: -87 dBm @ 6 Mbps, -86 dBm @ 9 Mbps, -85 dBm @ 12 Mbps, -82 dBm @ 18 Mbps, -80 dBm @ 24 Mbps, -76 dBm @ 36 Mbps, -72 dBm @ 48 Mbps, -70 dBm @ 54 Mbps Protocol Support General Protocols: Proxy ARP, DNS, HTTP, HTTPS, IP, ICMP, SNTP, TCP, UDP, RADIUS, SNMP, PPPoE, DHCPAP-only Protocols: ARP, BOOTP, DHCP, dynamic VLAN-Tags for 802.1X-Clients, STP/RSTP (IEEE 802.1D/w)Interface Default Antenna: 2 dBi dual-band omni-directional antenna, RP-SMA (male) Connector for External Antennas: RP-SMA (female) LAN Ports: 1, 10/100BaseT(X), auto negotiation speed (RJ45-type) Console for External Antenna: RS-232 (RJ45-type) LED Indicators: PWR1, PWR2, PoE, FAULT, STATE, signal strength, CLIENT MODE, BRIDGE MODE, WLAN, 10M, 100M Alarm Contact: 1 relay output with current carrying capacity of 1 A @ 24 VDC Digital Inputs: 2 electrically isolated inputs • +13 to +30 V for state “1” • +3 to -30 V for state “0” • Max. input current: 8 mA Physical Characteristics Housing: Metal, providing IP30 protection Weight: 850 g Dimensions: 53.6 x 135 x 105 mm (2.11 x 5.31 x 4.13 in) Installation: DIN-Rail mounting, wall mounting (with optional kit) Environmental Limits Operating Temperature: Standard Models: 0 to 60°C (32 to 140°F) Wide Temp. Models: -40 to 75°C (-40 to 167°F) Storage Temperature: -40 to 85°C (-40 to 185°F) Ambient Relative Humidity: 5% to 95% (non-condensing) Power Requirements Input Voltage: 12 to 48 VDC, redundant dual DC power inputs or 48 VDC Power-over-Ethernet (IEEE 802.3af compliant) Connector: 10-pin removable terminal block Power Consumption: • 0.121 to 0.494 A @ 12 to 48 VDC • 0.3 A @ 24 VDC Reverse Polarity Protection: Present Regulatory Approvals Safety: EN60950-1, UL60950-1 Radio: EN300 328, EN301 893, ARIB STD-33/T66/T71 (Japan)

AirWorks AWK-3121 Introduction 1-5EMC: EN301 489-1/-17, FCC Part 15, EN55022/55024, IEC61000-6-2/-4 Transportation: EN50155 (Environmental), EN50121-1/-4 (Environmental), Directive 72/245/EEC (for e/E-mark) Hazardous Location: UL/cUL Class I, Div. 2; ATEX Class I, Zone 2 Note: Please check Moxa’s website for the most up-to-date certification status. Warranty Warranty Period: 5 years Details: See www.moxa.com/warranty ATTENTION • The AWK-3121 is NOT a portable mobile device and should be located at least 20 cm away from the human body. • The AWK-3121 is NOT designed for the general public. A well-trained technician should be enlisted to ensure safe deployment of AWK-3121 units, and to establish a wireless network. Functional Design LED Indicators The LEDs on the front panel of the AWK-3121 provide a quick and easy means of determining the current operational status and wireless settings. The FAULT LED indicates system failures and user-configured events. If the AWK-3121 cannot retrieve the IP address from a DHCP server, the FAULT LED will blink at one second intervals. The SIGNAL LEDs indicate signal strength, and only operate in Client mode. Signal StrengthLEDsFault LED The following table summarizes how to read the device’s wireless settings from the LED displays. More information is available in Chapter 3 in the “Basic Wireless Settings” section. Basic Wireless Settings LEDs Note Operation mode WDS CLIENT BRIDGE SIGNAL AP Disabled off off – AP mode AP Enabled off on – Bridge mode: WDS is enabled Client – on off 0 Client mode: no association Client – on off 1 Client mode: associated, poor signal Client – on off 2-5 Client mode: associated, good signal

AirWorks AWK-3121 Introduction 1-6 ATTENTION The FAULT, SIGNAL, CLIENT, BRIDGE, and WLAN LEDs lighting up simultaneously and blinking at one-second intervals indicates that the system has failed to boot. This may be due to improper operation or an uncontrollable factor, such as an unexpected shutdown during firmware update. Instructions on how to recover the firmware can be found in Chapter 6 in the “Firmware Recovery” section. Beeper The beeper emits two short beeps when the system is ready. Reset Button The RESET button is located on the top panel of the AWK-3121. You can reboot the AWK-3121 or reset it to factory default settings by pressing the RESET button with a pointed object such as an unfolded paper clip. • System reboot: Hold the RESET button down for under 5 seconds and then release. • Reset to factory default: Hold the RESET button down for over 5 seconds until the STATE LED starts blinking green. Release the button to reset the AWK-3121. Relay (Digital Output) The AWK-3121 has one relay output consisting of the 2 terminal block contacts on the top panel, as shown below. These relay contacts are used to forward system failures and user-configured events. The two wires attached to the relay contacts form an open circuit when a user-configured event is triggered. If a user-configured event does not occur, the relay circuit will remain closed. For safety reasons, the relay circuit is kept open when the AWK-3121 is not powered up. Summary of the AWK-3121’s Relay Status Power Status Event Relay Off – Open On Yes Open No Short

2 2. Getting Started This chapter explains how to install Moxa’s AirWorks AWK-3121 for the first time, and quickly set up your wireless network and test whether the connection is running well. The function guide provides a convenient means of determining which functions you need to use. The following topics are covered in this chapter:  First-time Installation and Configuration  Communication Testing  Function Map

AirWorks AWK-3121 Getting Started 2-2First-time Installation and Configuration Before installing the AWK-3121, make sure that all items in the Package Checklist are in the box. You will need access to a notebook computer or PC equipped with an Ethernet port. The AWK-3121 has a default IP address that must be used when connecting to the device for the first time. • Step 1: Select the power source. The AWK-3121 can be powered by a DC power input or PoE (Power over Ethernet). The AWK-3121 will use whichever power source you choose. • Step 2: Connect the AWK-3121 to a notebook or PC. Since the AWK-3121 supports MDI/MDI-X auto-sensing, you can use either a straight-through cable or crossover cable to connect the AWK-3121 to a computer. The LED indicator on the AWK-3121’s LAN port will light up when a connection is established. • Step 3: Set up the computer’s IP address. Choose an IP address on the same subnet as the AWK-3121. Since the AWK-3121’s default IP address is 192.168.127.253, and the subnet mask is 255.255.255.0, you should set the IP address of the computer to 192.168.127.xxx. NOTE After you select Maintenance Æ Load Factory Default and click the Submit button, the AWK-3121 will be reset to factory default settings and the IP address will be reset to 192.168.127.253. • Step 4: Use the web-based manager to configure the AWK-3121 Open your computer’s web browser and type http://192.168.127.253 in the address field to access the homepage of the web-based Network Manager. Before the homepage opens, you will need to enter the user name and password as shown in the following figure. For first-time configuration, enter the default user name and password and then click on the Login button: NOTE Default user name and password: User Name: admin Password: root For security reasons, we strongly recommend changing the default password. To do so, select Maintenance Æ Password, and then follow the on-screen instructions to change the password.

AirWorks AWK-3121 Getting Started 2-3NOTE After you click Submit to apply changes the web page will refresh (Updated) will appear on the page and a blinking reminder will be shown on the upper-right corner of the web page: To activate the changes click Restart and then Save and Restart after you change the settings. About 30 seconds are needed for the AWK-3121 to complete the reboot procedure. • Step 5: Select the AWK-3121 operation mode. By default, the AWK-3121’s operation mode is set to AP. You can change to Client mode in Wireless Settings Æ Basic Wireless Settings. Detailed information about configuring the AWK-3121’s operation can be found in Chapter 3. • Step 6: Test communications. In the following sections we describe two test methods that can be used to ensure that a network connection has been established. Communication Testing After installing the AWK-3121 you can run a sample test to make sure the AWK-3121 and wireless connection are functioning normally. Two testing methods are described below. Use the first method if you are using only one AWK-3121 device, and use the second method if you are using two or more AWK-3121 units. How to Test One AWK-3121 If you are only using one AWK-3121, you will need a second notebook computer equipped with a WLAN card. Configure the WLAN card to connect to the AWK-3121 (NOTE: the default SSID is MOXA), and change the IP address of the second notebook (Notebook B) so that it is on the same subnet as the first notebook (Notebook A), which is connected to the AWK-3121. After configuring the WLAN card, establish a wireless connection with the AWK-3121 and open a DOS window on Notebook B. At the prompt, type ping <IP address of notebook A> and then press Enter (see the figure below). A “Reply from IP address …” response means the communication was successful. A “Request timed out.” response means the communication failed. In this case, recheck the configuration to make sure the connections are correct.

AirWorks AWK-3121 Getting Started 2-4How to Test Two or More AWK-3121 Units If you have two or more AWK-3121 units, you will need a second notebook computer (Notebook B) equipped with an Ethernet port. Use the default settings for the first AWK-3121 connected to notebook A and change the second or third AWK-3121 connected to notebook B to Client mode, and then configure the notebooks and AWK-3121 units properly. After setting up the testing environment, open a DOS window on notebook B. At the prompt, type: ping <IP address of notebook A> and then press Enter. A “Reply from IP address …” response means the communication was successful. A “Request timed out” response means the communication failed. In this case, recheck the configuration to make sure the connections are correct.

AirWorks AWK-3121 Getting Started 2-5Function Map Basic settings for administering the AWK-3121 Essential settings related to establishing a wireless network Advanced features to support additional network management and secure wired and wireless communication Note: These advanced functions are all optional. Application-oriented device management functions to set up events, traps, and reactions via relay warning, e-mail, and SNMP notification Note: These functions are all optional. Real-time status information for monitoring wired/wireless network performance, advanced services, and device management functions. Functions for maintaining the AWK-3121, and for diagnosing the network. On-demand functions to support the web-based console management operation. Quick overview of the AWK-3121’s status

3 3. Web Console Configuration In this chapter, we explain all aspects of web-based console configuration. Moxa’s easy-to-use management functions help you set up your AWK-3121 and make it easy to establish and maintain your wireless network. The following topics are covered in this chapter:  Web Browser Configuration  Overview  Basic Settings ¾ System Info Settings ¾ Network Settings ¾ Time Settings  Wireless Settings  Operation Mode  Basic Wireless Settings ¾ WLAN Security Settings ¾ Advanced Wireless Settings ¾ WLAN Certification Settings (for EAP-TLS in Client mode only)  Advanced Settings ¾ Using Virtual LAN ¾ Configuring Virtual LAN ¾ DHCP Server (for AP mode only) ¾ Packet Filters ¾ RSTP Settings (for AP mode only) ¾ SNMP Agent  Auto Warning Settings ¾ System Log ¾ Syslog ¾ E-mail ¾ Relay ¾ Trap  Status ¾ Associated Client List (for AP mode only) ¾ DHCP Client List (for AP mode only) ¾ System Log ¾ Relay Status ¾ DI and Power Status ¾ Wireless Status  Maintenance ¾ Console Settings ¾ Ping ¾ Firmware Upgrade ¾ Config Import Export ¾ Load Factory Default ¾ Password ¾ Misc. Settings  Save Configuration  Restart  Logout

AirWorks AWK-3121 Web Console Configuration 3-2Web Browser Configuration Moxa AWK-3121’s web browser interface provides a convenient way to modify its configuration and access the built-in monitoring and network administration functions. The recommended web browser is Microsoft® Internet Explorer 7.0 or 8.0 with JVM (Java Virtual Machine) installed. NOTE To use the AWK-3121’s management and monitoring functions from a PC host connected to the same LAN as the AWK-3121, you must make sure that the PC host and the AWK-3121 are on the same logical subnet. Similarly, if the AWK-3121 is configured for other VLAN settings, you must make sure your PC host is on the management VLAN. The Moxa AWK-3121’s default IP is 192.168.127.253. Follow these steps to access the AWK-3121’s web-based console management interface. 1. Open your web browser (e.g., Internet Explorer) and type the AWK-3121’s IP address in the address field. Press Enter to establish the connection. 2. The Web Console Login page will open. Enter the password (default Username = admin; default Password = root) and then click Login to continue. 3. You may need to wait a few moments for the web page to download to your computer. Note that the Model name and IP address of your AWK-312 are both shown in the title bar of the web page. This information can be used to help you identify multiple AWK-3121 units.

AirWorks AWK-3121 Web Console Configuration 3-34. Use the menu tree on the left side of the window to open the function pages to access each of the AWK-3121’s functions. In the following paragraphs, we describe each AWK-3121 management function in detail. A quick overview is available in this manual in the “Function Map” section of Chapter 2. NOTE The model name of the AWK-3121 is shown as AWK-3121-XX, where XX indicates the country code. The country code indicates the AWK-3121 version and which bandwidth it uses. We use AWK-3121-US as an example in the following figures. (The country code and model name that appears on your computer screen may be different than the one shown here.) NOTE For security reasons, you will need to log back into the AWK-3121 after a 5-minute time-out. Overview The Overview page summarizes the AWK-3121’s current status. The information is categorized into several groups: System info, Device info, and 802.11 info.

AirWorks AWK-3121 Web Console Configuration 3-4Click on SSID for more detailed 802.11 information, as shown in the following figure. NOTE The 802.11 info that is displayed may be different for different operation modes. For example, “Current BSSID” is not available in Client mode, and “Signal strength” is not available in AP mode. Basic Settings The Basic Settings group includes the most commonly used settings required by administrators to maintain and control the AWK-3121. System Info Settings The System Info items, especially Device name and Device description, are displayed and included on the Overview page, in SNMP information, and in alarm emails. Setting System Info items makes it easier to identify the different AWK-3121 units connected to your network. Device name Setting Description Factory Default Max. 31 of characters This option is useful for specifying the role or application of different AWK-3121 units. AWK-3121_<Serial No. of this AWK-3121> Device location Setting Description Factory Default Max. of 31 characters Specifies the location of different AWK-3121 units. None Device description Setting Description Factory Default Max. of 31 characters Use this space to record amore detailed description of the AWK-3121 None

AirWorks AWK-3121 Web Console Configuration 3-5Device contact information Setting Description Factory Default Max. of 31 characters Provides information about whom to contact in order to resolve problems. Use this space to record contact information of the person responsible for maintaining this AWK-3121. None Network Settings The Network Settings configuration panel allows you to modify the usual TCP/IP network parameters. An explanation of each configuration item is given below. IP configuration Setting Description Factory Default DHCP The AWK-3121’s IP address will be assigned automatically by the network’s DHCP server Static Static Set up the AWK-3121’s IP address manually. IP address Setting Description Factory Default AWK-3121’s IP address Identifies the AWK-3121 on a TCP/IP network. 192.168.127.253 Subnet mask Setting Description Factory Default AWK-3121’s subnet mask Identifies the type of network to which the AWK-3121 is connected (e.g., 255.255.0.0 for a Class B network, or 255.255.255.0 for a Class C network). 255.255.255.0 Gateway Setting Description Factory Default AWK-3121’s default gateway The IP address of the router that connects the LAN to an outside network. None Primary/ Secondary DNS server Setting Description Factory Default IP address of the Primary/Secondary DNS server The IP address of the DNS Server used by your network. After entering the DNS Server’s IP address, you can input the AWK-3121’s URL (e.g., http://ap11.abc.com) in your browser’s address field instead of entering the IP address. The Secondary DNS server will be used if the Primary DNS server fails to connect. None Time Settings The AWK-3121 has a time calibration function based on information from an NTP server or user specified Date and Time information. Functions such as Auto warning can add real-time information to the message.

AirWorks AWK-3121 Web Console Configuration 3-6 The Current local time shows the AWK-3121’s system time when you open this web page. You can click on the Set Time button to activate the updated date and time parameters. An “(Updated)” string will appear to indicate that the change is complete. Local time settings will be immediately activated in the system without running Save and Restart. NOTE The AWK-3121 has a built-in real time clock (RTC). We strongly recommend that users update the Local time for the AWK-3121 after the initial setup or a long-term shutdown, especially when the network does not have an Internet connection for accessing the NTP server or there is no NTP server on the LAN. Current local time Setting Description Factory Default User adjustable time The date and time parameters allow configuration of the local time, with immediate activation. Use 24-hour format: yyyy/mm/dd hh:mm:ss None Time zone Setting Description Factory Default User selectable time zone The time zone setting allows conversion from GMT (Greenwich Mean Time) to local time. GMT (Greenwich Mean Time) ATTENTION Changing the time zone will automatically adjust the Current local time. You should configure the Time zone before setting the Current local time. Daylight saving time Setting Description Factory Default Enable/ Disable Daylight saving time (also know as DST or summer time) involves advancing clocks (usually 1 hour) during the summer time to provide an extra hour of daylight in the afternoon. Disable When Daylight saving time is enabled, the following parameters will be shown: • Starts at: The date that daylight saving time begins. • Stops at: The date that daylight saving time ends. • Time offset: Indicates how many hours forward the clock should be advanced. Time server 1/2 Setting Description Factory Default IP/Name of Time Server 1/2 IP or Domain name of the NTP time server. The 2nd NTP server will be used if the 1st NTP server fails to connect. None

AirWorks AWK-3121 Web Console Configuration 3-7Query period Setting Description Factory Default Query period time (1 to 9999 seconds) This parameter determines how often the time is updated from the NTP server. 600 (seconds) Wireless Settings The essential settings for wireless networks are presented in this function group. Settings must be properly set before establishing your wireless network. Familiarize yourself with the following terms before starting the configuration process: AP/Bridge: This mode provides both Access Point and Static LAN-to-LAN Bridging functionality. The static LAN-to-LAN bridging function is supported by the Wireless Distribution System (WDS). AP Client: This mode is for Dynamic LAN-to-LAN Bridging or Device-to-LAN scenarios. The AP Client automatically establishes bridge links with other APs. In either AP/Bridge or AP Client mode, the AWK-3121 forwards packets between its Ethernet interface (LAN) and wireless interface (WLAN) to connect wired hosts on the Ethernet side with wireless host(s) on the wireless side. There are two types of wireless links are specified by the IEEE802.11 standard: • STA-AP: This type of wireless link is established between an IEEE802.11 Station (STA) and an IEEE802.11 Access Point (AP). An STA is usually a client computer (PC or PDA) with a WLAN network interface card (NIC). The Client mode is actually an STA. • WDS: This type of wireless link is established between two IEEE802.11 APs. Wireless packets transmitted along the WDS link comply with the IEEE802.11 WDS (Wireless Distribution System) format at the link layer. Refer to the “Wireless Distribution System (WDS)” section in Chapter 5 for details. Keep in mind that WPA/WPA2 CANNOT be supported in WDS. To establish a static bridge link based on the WDS, the APs at both end of the WDS link must be configured manually with each other’s MAC addresses. To establish a dynamic bridge link between an AP and a Client, both devices must be configured with the same channel, and security settings (see “WLAN Security Settings” for details). Moreover, the same SSID is also needed for clients that roam the APs in Bridge mode. The AP Client automatically scans for any AP that is using the matched SSID and establishes a bridge link with the scanned AP. When the AWK-3121 is configured for Client mode, it can be used as an Ethernet-to-wireless (or LAN-to-WLAN) network adapter. For example, a notebook computer equipped with an Ethernet adaptor but no wireless card can be connected to this device with an Ethernet cable to provide wireless connectivity to another AP. NOTE Although it is more convenient to use dynamic bridging, there is a limitation—the AP Client can only transmit IP-based packets between its wireless interface (WLAN) and Ethernet interface (LAN); other types of traffic (such as IPX and AppleTalk) are not forwarded. Operation Mode The AWK-3121 supports two main operation modes—Client and AP—each of which plays a distinct role on the wireless network.

AirWorks AWK-3121 Web Console Configuration 3-8Wireless Enable Setting Description Factory Default Enable/Disable The RF (Radio Frequency) module can be manually turned on or off. This function is available in AP operation mode only. Enable Operation Mode Setting Description Factory Default AP The AWK-3121 plays the role of wireless AP/Bridge AP Client The AWK-3121 plays the role of wireless AP Client Basic Wireless Settings The “WLAN Basic Setting Selection” panel is used to add and edit SSIDs. An SSID is a unique identifier that wireless networking devices use to establish and maintain wireless connectivity. Multiple access points on a network or sub-network can use the same SSIDs. You can configure your AWK to use up to 9 SSIDs, and configure each SSID differently. All of the SSIDs are active at the same time; that is, client devices can use any of the SSIDs to associate with the access point. Click on Add SSID to create more SSIDs. Click on Edit to assign different configuration settings to each SSID. The configuration panel appears as follows:

AirWorks AWK-3121 Web Console Configuration 3-9 NOTE When you switch to Client mode, a Site Survey button will be available on the Basic Wireless Settings panel. Click the “Site Survey” button to view information about available APs, as shown in the following figure. You can click on the SSID of an entity and bring the value of its SSID onto the SSID field of the Basic Wireless Settings page. Click the Refresh button to re-scan and update the table. NOTE If the Gateway field in Basic Settings Æ Network Settings is empty, a warning message will appear, reminding you to set the default gateway when Client mode is enabled. You can ignore this message if you are only planning a local network and packets will not be sent outside the network. RF type Setting Description Factory Default A Supports IEEE802.11a standard only B/G Mixed B Supports IEEE802.11b standard only G Supports IEEE802.11g standard only B/G Mixed Supports both of IEEE802.11b/g standards, but 802.11g can be slowed down when 802.11b clients are on the network Channel (for AP mode only) Setting Description Factory Default Available channels vary with RF type AWK-3121 plays a role of wireless AP. 6 (in B/G Mixed mode) SSID Setting Description Factory Default Max. of 31 characters The SSID of a client and the SSID of the AP must be identical for the client and AP to be able to communicate with each other. MOXA

AirWorks AWK-3121 Web Console Configuration 3-10SSID broadcast (for AP mode only) Setting Description Factory Default Enable/ Disable SSID can be broadcast or not Enable NOTE The AWK-3121-JP (for Japanese frequency bands) only connects SSID-hidden APs in all IEEE802.11a channels and IEEE802.11g channels 1 to 11. The AWK-3121-EU (for European frequency bands) only connects SSID-hidden APs in all IEEE802.11b/g channels. WDS (for AP mode only) Setting Description Factory Default Enable/Disable AWK-3121 supports WDS or not. Disable NOTE When WDS is enabled, you can use a pure point-to-point WDS link by disabling AP functionality. The AWK-3121 provides 8 entities for WDS settings and can support up to 8 WDS links to other APs or wireless bridges. The list appears when WDS Enable is checked. Enter the MAC address to set up a WDS link. Remember to activate a WDS link by checking the Active check box. WLAN Security Settings The AWK-3121 provides four standardized wireless security modes: Open, WEP (Wired Equivalent Privacy), WPA (Wi-Fi Protected Access), and WPA2. Several security modes are available in the AWK-3121 by selecting Security mode and WPA type: • Open: No authentication, no data encryption. • WEP: Static WEP (Wired Equivalent Privacy) keys must be configured manually. • WPA/WPA2-Personal: Also known as WPA/WPA2-PSK. You will need to specify the Pre-Shared Key in the Passphrase field, which will be used by the TKIP or AES engine as a master key to generate keys that actually encrypt outgoing packets and decrypt incoming packets. • WPA/WPA2-Enterprise: Also called WPA/WPA2-EAP (Extensible Authentication Protocol). In addition to device-based authentication, WPA/WPA2-Enterprise enables user-based authentication via IEEE802.1X. The AWK-3121 can support three EAP methods: EAP-TLS, EAP-TTLS, and EAP-PEAP.

AirWorks AWK-3121 Web Console Configuration 3-11Security mode Setting Description Factory Default Open No authentication Open WEP Static WEP is used WPA* WPA is used WPA2* Fully supports IEEE802.11i with “TKIP/AES + 802.1X” *WPA and WPA2 are not supported in WDS (Bridge) mode. Open For security reasons, you should NOT set security mode to Open System, since authentication and data encryption are NOT performed in Open System mode. WEP According to the IEEE802.11 standard, WEP can be used for authentication and data encryption to maintain confidentiality. Shared (or Shared Key) authentication type is used if WEP authentication and data encryption are both needed. Normally, Open (or Open System) authentication type is used when WEP data encryption is run with authentication. When WEP is enabled as a security mode, the length of a key (so-called WEP seed) can be specified as 64/128 bits, which is actually a 40/104-bit secret key with a 24-bit initialization vector. The AWK-3121 provides 4 entities of WEP key settings that can be selected to use with Key index. The selected key setting specifies the key to be used as a send-key for encrypting traffic from the AP side to the wireless client side. All 4 WEP keys are used as receive-keys to decrypt traffic from the wireless client side to the AP side. The WEP key can be presented in two Key types, HEX and ASCII. Each ASCII character has 8 bits, so a 40-bit (or 64-bit) WEP key contains 5 characters, and a 104-bit (or 128-bit) key has 13 characters. In hex, each character uses 4 bits, so a 40-bit key has 10 hex characters, and a 128-bit key has 26 characters. Authentication type Setting Description Factory Default Open Data encryption is enabled, but without authentication Open Shared Data encryption and authentication are both enabled. Key type Setting Description Factory Default HEX Specifies WEP keys in hex-decimal number form HEX ASCII Specifies WEP keys in ASCII form Key length Setting Description Factory Default 64 bits Uses 40-bit secret keys with 24-bit initialization vector 64 bits 128 bits Uses 104-bit secret key with 24-bit initialization vector Key index Setting Description Factory Default 1-4 Specifies which WEP key is used Open

AirWorks AWK-3121 Web Console Configuration 3-12WEP key 1-4 Setting Description Factory Default ASCII type: 64 bits: 5 chars 128 bits: 13chars HEX type: 64 bits: 10 hex chars 128 bits: 26 hex chars A string that can be used as a WEP seed for the RC4 encryption engine. None WPA/WPA2-Personal WPA (Wi-Fi Protected Access) and WPA2 represent significant improvements over the WEP encryption method. WPA is a security standard based on 802.11i draft 3, while WPA2 is based on the fully ratified version of 802.11i. The initial vector is transmitted, encrypted, and enhanced with its 48 bits, twice as long as WEP. The key is regularly changed so that true session is secured. Even though AES encryption is only included in the WPA2 standard, it is widely available in the WPA security mode of some wireless APs and clients as well. The AWK-3121 also supports AES algorithms in WPA and WPA2 for better compatibility. Personal versions of WPA/WPA2, also know as WPA/WPA-PSK (Pre-Shared Key), provide a simple way of encrypting a wireless connection for high confidentiality. A Passphrase is used as a basis for encryption methods (or cipher types) in a WLAN connection. The passphrases should be complicated and as long as possible. There must be at least 8of ASCII characters in the Passphrase, and it could go up to 63. For security reasons, this passphrase should only be disclosed to users who need it, and it should be changed regularly. WPA type Setting Description Factory Default Personal Provides Pre-Shared Key-enabled WPA and WPA2 Personal Enterprise Provides enterprise-level security for WPA and WPA2 Encryption method Setting Description Factory Default TKIP Temporal Key Integrity Protocol is enabled TKIP AES Advance Encryption System is enabled Mixed* Provides TKIP broadcast key and TKIP+AES unicast key for some legacy AP clients. This option is rarely used. *This option is available in AP mode only, and does not support AES-enabled clients. Passphrase Setting Description Factory Default 8 to 63 characters Master key to generate keys for encryption and decryption None Key renewal (for AP mode only) Setting Description Factory Default 60 to 86400 seconds (1 minute to 1 day) Specifies the time period of group key renewal 3600 (seconds)

AirWorks AWK-3121 Web Console Configuration 3-13 NOTE The key renewal value dictates how often the wireless AP encryption keys should be changed. The security level is generally higher if you set the key renewal value to a shorter number, which forces the encryption keys to be changed more frequently. The default value is 3600 seconds (6 minutes). Longer time periods can be considered if the line is not very busy. WPA/WPA2-Enterprise (for AP mode) By setting WPA type to Enterprise, you can use EAP (Extensible Authentication Protocol), a framework authentication protocol used by 802.1X to provide network authentication. In these Enterprise-level security modes, a back-end RADIUS (Remote Authentication Dial-In User Service) server is needed if IEEE 802.1X functionality is enabled in WPA /WPA2. The IEEE 802.1X protocol also offers the possibility of carrying out an efficient connection authentication on a large-scale network. It is not necessary to exchange keys or passphrases. WPA type Setting Description Factory Default Personal Provides Pre-Shared Key-enabled WPA and WPA2 Personal Enterprise Provides enterprise-level security for WPA and WPA2 Encryption method Setting Description Factory Default TKIP Temporal Key Integrity Protocol is enabled TKIP AES Advance Encryption System is enabled Mixed* Provides TKIP broadcast key and TKIP+AES unicast key for some legacy AP clients. This option is rarely used. *This option is available in AP mode only, and cannot support AES-enabled clients. Primary/Secondary RADIUS server IP Setting Description Factory Default The IP address of RADIUS server Specifies the delegated RADIUS server for EAP None Primary/Secondary RADIUS port Setting Description Factory Default Port number Specifies the port number of the delegated RADIUS server 1812 Primary/ Secondary RADIUS shared key Setting Description Factory Default Max. of 31 characters The secret key shared between AP and RADIUS server None Key renewal Setting Description Factory Default 60 to 86400 seconds (1 minute to 1 year) Specifies the time period of group key renewal 3600 (seconds)

AirWorks AWK-3121 Web Console Configuration 3-14WPA/WPA2-Enterprise (for Client mode) When used as a client, the AWK-3121 can support three EAP methods (or EAP protocols): EAP-TLS, EAP-TTLS, and EAP-PEAP, corresponding to WPA/WPA-Enterprise settings on the AP side. Encryption method Setting Description Factory Default TKIP Temporal Key Integrity Protocol is enabled TKIP AES Advance Encryption System is enabled EAP Protocol Setting Description Factory Default TLS Specifies Transport Layer Security protocol TLS TTLS Specifies Tunneled Transport Layer Security PEAP Specifies Protected Extensible Authentication Protocol, or Protected EAP Before choosing the EAP protocol for your WPA/WPA2-Enterpise settings on the client end, please contact the network administrator to make sure the system supports the protocol on the AP end. Detailed information on these three popular EAP protocols is presented in the following sections. EAP-TLS TLS is the standards-based successor to Secure Socket Layer (SSL). It can establish a trusted communication channel over a distrusted network. TLS provides mutual authentication through certificate exchange. EAP-TLS is also secure to use. You are required to submit a digital certificate to the authentication server for validation, but the authentication server must also supply a certificate. You can use Basic Wireless Settings Æ WLAN Certificate Settings to import your WLAN certificate and enable EAP-TLS on the client end. You can check the current certificate status in Current Status if it is available. • Certificate issued to: Shows the certificate user • Certificate issued by: Shows the certificate issuer • Certificate expiration date: Indicates when the certificate has expired EAP-TTLS It is usually much easier to re-use existing authentication systems, such as a Windows domain or Active Directory, LDAP directory, or Kerberos realm, rather than creating a parallel authentication system. As a result, TTLS (Tunneled TLS) and PEAP (Protected EAP) are used to support the use of so-called “legacy authentication methods.” TTLS and PEAP work in a similar way. First, they establish a TLS tunnel (EAP-TLS for example), and validate whether the network is trustworthy with digital certificates on the authentication server. This step establishes

AirWorks AWK-3121 Web Console Configuration 3-15a tunnel that protects the next step (or “inner” authentication), and consequently is sometimes referred to as “outer” authentication. The TLS tunnel is then used to encrypt an older authentication protocol that authenticates the user for the network. As you can see, digital certificates are still needed for outer authentication in a simplified form. Only a small number of certificates are required, which can be generated by a small certificate authority. Certificate reduction makes TTLS and PEAP much more popular than EAP-TLS. The AWK-3121 provides some non-cryptographic EAP methods, including PAP, CHAP, MS-CHAP, and MS-CHAP-V2. These EAP methods are not recommended for direct use on wireless networks. However, they may be useful as inner authentication methods with TTLS and PEAP. Because the inner and outer authentications can use distinct user names in TTLS and PEAP, you can use an anonymous user name for the outer authentication, with the true user name only shown through the encrypted channel. Keep in mind that not all client software supports anonymous alteration. Confirm this with the network administrator before you enable identity hiding in TTLS and PEAP. TTL Inner Authentication Setting Description Factory Default PAP Password Authentication Protocol is used MS-CHAP-V2 CHAP Challenge Handshake Authentication Protocol is used MS-CHAP Microsoft CHAP is used MS-CHAP-V2 Microsoft CHAP version 2 is used Anonymous Setting Description Factory Default Max. of 31 characters A distinct name used for outer authentication None User name & Password Setting Description Factory Default User name and password used in inner authentication None PEAP There are a few differences in the TTLS and PEAP inner authentication procedures. TTLS uses the encrypted channel to exchange attribute-value pairs (AVPs), while PEAP uses the encrypted channel to start a second EAP exchange inside of the tunnel. The AWK-3121 provides MS-CHAP-V2 merely as an EAP method for inner authentication.

AirWorks AWK-3121 Web Console Configuration 3-16Inner EAP protocol Setting Description Factory Default MS-CHAP-V2 Microsoft CHAP version 2 is used MS-CHAP-V2 Anonymous Setting Description Factory Default Max. of 31 characters A distinct name used for outer authentication None User name & Password Setting Description Factory Default User name and password used in inner authentication None Advanced Wireless Settings Additional wireless-related parameters are presented in this section to help you set up your wireless network in detail. Transmission Rate Setting Description Factory Default Auto The AWK-3121 senses and adjusts the data rate automatically Auto Available rates Users can manually select a target transmission data rate Transmission Power Setting Description Factory Default Auto Specifies wireless signal coverage by automatically selecting the strength of Tx power Full Full Equivalent to 0 dBm of maximum Tx power High Equivalent to -5 dBm of maximum Tx power Medium Equivalent to -10 dBm of maximum Tx power Low Equivalent to -15 dBm of maximum Tx power NOTE Tx power at “Full” • US model: 17 dBm • EU model: 16 dBm • JP model: 18 dBm

AirWorks AWK-3121 Web Console Configuration 3-17RF type = A (Channel 36 ~ 48) Setting Description Factory Default Auto Specifies wireless signal coverage by automatically selecting the strength of Tx power Full Full Equivalent to 0 dBm of maximum Tx power High Equivalent to -4 dBm of maximum Tx power Medium Equivalent to -8 dBm of maximum Tx power Low Equivalent to -12 dBm of maximum Tx power NOTE Tx power at “Full” • US model: 14 dBm • EU model: 16 dBm • JP model: 14 dBm Beacon Interval (for AP mode only) Setting Description Factory Default Beacon Interval (40 to 1000 ms) Indicates the frequency interval of the beacon 100 (ms) DTIM Interval (for AP mode only) Setting Description Factory Default Data Beacon Rate (1 to 15) Indicates how often the AWK-3121 sends out a Delivery Traffic Indication Message 1 Fragmentation threshold Setting Description Factory Default Fragment Length (256 to 2346) Specifies the maximum size a data packet before splitting and creating another new packet 2346 RTS threshold Setting Description Factory Default RTS/CTS Threshold (256 to 2346) Determines how large a packet can be before the Access Point coordinates transmission and reception to ensure efficient communication 2346 NOTE You can refer to the related glossaries in Chapter 5 for detailed information about the above-mentioned settings. By setting these parameters properly, you can better tune the performance of your wireless network. Transmission distance Setting Description Factory Default Distance or max. range for transmission (500 to 10000 m) Specifies the transmission distance or max. range between two AWK devices. This parameter should be set properly, especially for long-distance communication. 500 Noise protection Setting Description Factory Default Enable/Disable Adjusts the interference coping capability of the wireless signal. This option should be enabled for communication distance under 500 meters, and should be disabled for communication distances over 500 meters. Enable

AirWorks AWK-3121 Web Console Configuration 3-18Transmission enhancement Setting Description Factory Default Enable/Disable This setting can enhance communication by strengthening the AWK-3121’s transmission power. It is quite useful for long-distance transmission or countering environmental interference. The user must carefully evaluate and measure the transmission power of the entire system to ensure it stays below the regulative limit. In addition, that RF type 802.11a mode cannot be used if this function is enabled. Disable NOTE When Transmission enhancement is enabled, the Tx Power is at “Full” RF type = B/G/Mixed (Channel1~13) • US model: 22 dBm • EU model: 20 dBm • JP model: 20 dBm RF type = A (Channel 36 ~ 48) • US model: 17 dBm • EU model: 17 dBm • JP model: 17 dBm NOTE Make sure the same Transmission distance parameters are set in both AP and Client sides, and both Bridges. When this parameter is greater than 500, an optimal algorithm will be enabled to support long-distance transmission. Note that Transmission enhancement only supports 802.11b/g mode; 802.11a mode is not supported. Transmission enhancement is also recommended to enable communication at both ends when long-distance transmission is required. A high-gain antenna installed at a fixed antenna connector can also improve performance. (Select Antenna at MAIN or AUX.) Antenna Setting Description Factory Default Auto The AWK-3121 uses two antennas (MAIN and AUX) and enables the diversity function for reducing multipath effect. Auto MAIN Diversity function is disabled. Only MAIN antenna is in use. AUX Diversity function is disabled. Only AUX antenna is in use. EAPOL Version Setting Description Factory Default 1 EAPOL version 1 was standardized in the 2001 version of 802.1X, which is much more commonly implemented. 1 2 EAPOL version 2 was specified in 802.1X-2004. WMM Setting Description Factory Default Enable/Disable WMM is a QoS standard for WLAN traffic. Voice and video data will be given priority bandwidth when enabled with WMM supported wireless clients. Disable Full 11a channel support Setting Description Factory Default Enable/Disable “Full 11a channel support” allows users to select one channel from 802.11a, including channels in licensed and unlicensed bands. Disable

$AirWorks AWK-3121 Web Console Configuration 3-19 READ THIS BEFORE CHANGING THE DFS SETTING \nDFS (Dynamic Frequency Selection) is a mechanism to allow unlicensed wireless devices to share spectrum with existing radar systems by detecting radar systems and avoid causing interference with them. The current versions of Moxa AWK series products do not support DFS, so only U-NII Low channels (36, 40, 44, and 48) are supported by default. If you want to enable the “Full 11a channel support” option, keep in mind that your wireless devices may interfere with radar systems, which may violate local laws. If you are not sure about this, we recommend that you keep this option disabled. Updated firmware that supports DFS will be available soon. Turbo Roaming (for Client mode only) Setting Description Factory Default Enable/ Disable Moxa’s Turbo Roaming can enable rapid handover when the AWK-3121, as a client, roams among a group of APs. Disable When Turbo Roaming is enabled, the RF type, AP alive check, and Scan channels will be shown as follows. RF type shows the current RF type that this client is using. AP alive check will check if the AP connection is still available. When this function is enabled, a check will be done every 10 ms. You can set up Scan channels for the APs among which this client is going to roam. There are three Scan channels available. Note that the Scan channels may need to be modified when the RF type is changed. (For example, channel 36 is not available in B, G, or B/G Mix mode.) WLAN Certification Settings (for EAP-TLS in Client mode only) When EAP-TLS is used, a WLAN Certificate will be required at the client end to support WPA/WPA2-Enterprise. The AWK-3121 can support the PKCS #12, also known as Personal Information Exchange Syntax Standard, certificate formats that define file formats commonly used to store private keys with accompanying public key certificates, protected with a password-based symmetric key. Current Status displays information for the current WLAN certificate, which has been imported into the AWK-3121. Nothing will be shown if a certificate is not available. Certificate issued to: Shows the certificate user Certificate issued by: Shows the certificate issuer Certificate expiration date: Indicates when the certificate has expired You can import a new WLAN certificate in Import WLAN Certificate by following these steps, in order: 1. Input the corresponding password (or key) in the Certificate private password field and then click Submit to set the password. 2. The password will be displayed in the Certificate private password field. Click on the Browse button in Select certificate/key file and select the certificate file.$