6. 6 6. Command Command Line Interface Line Interface In this chapter, we will explain commands that are available through Telnet or SSH interface. We will provide descriptions for the commands, example settings and the AirMax5’s response. The purpose for this chapter is to introduce available CLI commands only. For detail descriptions on the concept and application of the settings, please refer to chapter 4 and chapter 5. Before reading this chapter, please go through Section 3.3 of Chapter 3.
6. Command Line Interface change password Purpose: Change login password Example: Command> change password 123 password is set to: 123 ftptest 11a Purpose: Test if a SSID’s connection is okay Example: Command> ftptest airlive 11a 40 Set SSID : airlive , mode = 11a , channel = 40 ok ! save config Purpose: save configuration file.
6. Command Line Interface Command> site survey Please wait a moment for site survey...
6. Command Line Interface z_debug add ssid Purpose: This command will replace the default ssid with the new one. It will not add an additional SSID. We recommend to use the following commands instead: add ssid broadcast (enable/disable) to add a new SSID set ssid to replace the current ssid name with a new one Example: Command> z_debug add ssid air1 z_debug reboot Purpose: reboot your AirMax5 Example: Command> z_debug reboot Rebooting...
6. Command Line Interface show http Purpose: Show HTTP service settings Example: Command> show http HTTP service port: 80 HTTP session timeout: 10 minutes show upnp Purpose: Show UPnP information Example: Command> show upnp UPnP is disabled show mac Purpose: show the MAC address table in MAC filter mode.
. Command Line Interface show mac filter Purpose: show mac filter status with the filter name Example: Command> show mac filter hello Filter Name MAC address --------------------------------------------------hello 00-4f-62-24-12-34 show community string read Purpose: Show SNMP community string Example: Command> show community string read SNMP Community String (read-only): public show snmp Purpose: Show whether SNMP is enable or disabled Example: Comm
6. Command Line Interface show radius server Purpose: Show radius server settings Example: Command> show radius server RADIUS Server State IP/Port ---------------------------------------------------------------------------------------Primary Disabled 0.0.0.0/1812 Secondary Disabled 0.0.0.
6. H/W Version: System LAN MAC: Wireless MAC: WMAC-0: Command Line Interface S0A 00-4F-79-90-00-16 00-4F-79-90-00-15 00-4F-79-90-00-15 show snmp statistics Purpose: Show SNMP satistics Example: Command> show snmp statistics Timeout: No Response from 192.168.1.
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6. Command Line Interface show antenna Purpose: Check antenna polarization Example: Command> show antenna Antenna setting is Vertical; show ratemode Purpose: Show whether the AirMax is using 5MHz, 10MHz, or 20MHz channel width Example: Command> show ratemode Ratemode is Full(20Mhz); show noise immunity Purpose: Show the noise immunity setting Example: Command> show noise immunity Noise immunity is enable 6.
6. Command Line Interface set system name Purpose: Set system’s name Example: Command> set system name airlive System Name: airlive set mac filter mode Purpose: Set MAC filter mode or disable MAC filtering.
6. Command Line Interface set telnet port Purpose: change the telnet port numer Example: Command> set telnet port 23 Changing telnet port may cause current telnet connections to be lost. Are you sure ? ( y/n ) : y Telnet port number: 23 set telnet timeout Purpose: Set Telnet management timeout Example: Command> set telnet timeout 10 Changing telnet timeout may cause current telnet connections to be lost.
6. Command Line Interface set operation mode Purpose: set or change operation mode Example: Command> set operation mode AP Operation mode is already setting! Command> set operation mode wds_bridge System should be reboot...
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6. Command Line Interface set rts threshold Purpose: set rts threshold. For explanation on advance wireless parameters, please refer to section 4.2.14 Example: Command> set rts threshold 2347 Radio1 RTS threshold: 2347 set fragmentation Purpose: set fragmentation value. For explanation on advance wireless parameters, please refer to section 4.2.
6. Command Line Interface set data rate Purpose: To set the date rate. For example, 54mbps, 36mbps….
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6. Command Line Interface ( enable/disable ): upnp Purpose: To enable or disable UPnP Example: Command>enable upnp (Upnp)descDocName: BD.xml UPnP Daemon: Intializing UPnP with descDocUrl=http://192.168.1.1:80/BD.xml UPnP Daemon: ipaddress=192.168.1.1 port=80 UPnP Daemon: conf_dir_path=/var/upnp Initializing UPnP SDK ... UPnP SDK Successfully Initialized. Setting the Web Server Root Directory to /var/upnp Succesfully set the Web Server Root Directory.
6. Command Line Interface Example: Command> enable radius server primary Invalid configuration specified. Command> enable radius server secondary Invalid configuration specified. 6.
6. Command Line Interface Command> delete mac filter aaa /etc/wlan/ap_service: 17: uname: not found killall: wpa_supplicant: no process killed /etc/wlan/ap_service: 17: uname: not found Using /lib/modules/2.4.25-LSDK-5.1.0.42/wlan/ath_hal.o Using /lib/modules/2.4.25-LSDK-5.1.0.42/wlan/ath_rate_atheros.o Using /lib/modules/2.4.25-LSDK-5.1.0.42/wlan/ath_dfs.o Using /lib/modules/2.4.25-LSDK-5.1.0.42/wlan/ath_ahb.
6. Command Line Interface Using /lib/modules/2.4.25-LSDK-5.1.0.42/wlan/ath_dfs.o Using /lib/modules/2.4.25-LSDK-5.1.0.42/wlan/ath_ahb.
6. Command Line Interface add radius server secondary successfully add wds Purpose: to add a WDS Link Example: Command> add wds bridge 00-4f-60-52-12-34 add wds successful! add ssid broadcast Purpose: to add a new ssid (AP and AP Router mode) to the multiple SSID list.
7. Antenna Alignment 7 7. Antenna Alignment It is important to align your antenna correctly with the remote device to get the best signal and performance. The AirMax5 is equipped with a 14dBi antenna with dual diversity. In this chapter, we will first explain the design and function of the built-in antenna. Then we will talk about 2 different ways for antenna alignment: Using the LED Indicators: The AirMax5 has 2 LED indicators to show the current signal strength of the connection.
7. Antenna Alignment E-Plane Coverage Angle: 30 degree forward 7.1.1 Polarization The AirMax5 is equipped with 2 x 14dBi patch antennas; one antenna in horizontal polarization and one in vertical polarization. For 2 wireless devices to connect, their antennas must use the same polarization. Vertical: AirMax5. Horizontal: The polarization of the antenna is horizontal, 90 degree from the direction of the case.
7. Antenna Alignment Please make sure there is no polarization mismatch when settings up the wireless link Antenna Settings: You can change the settings for the antenna from “Operation Modes -> Setup -> Advance Settings” menu. 7.1.2 Mounting Adjustment The degree you can adjust the AirMax5’s antenna depends on what mounting kit you use: Standard Mounting: The standard strap mount allows you to rotate the CPE in the horizontal plane only.
7. Antenna Alignment mounting kit allow the AirMax5 to rotate in both horizontal (pole mount only) and vertical direction. It is recommended to use this mounting kit when there is a big elevation difference between 2 sides of the wireless connection. 7.2 About RSSI Signal Level The RSSI level is used to indicate the signal strength of the remote wireless device. Therefore, the idea is to adjust the antenna until the RSSI level is at the highest. The unit used by RSSI is in dB or dBm.
7. Antenna Alignment 7.4 Antenna Alignment using RSSI LED There are 2 LED indicators on the side of the AirMax5 that is dedicated to display the RSSI signal strength. They are in bright blue and green color so you can see the difference in signal far away from the CPE. By varying the states of the LED, the AirMax5 can display 4 different levels of signal strength. About the Signal Threshold There are total of 4 signal levels in AirMax5: No Signal, Weak Signal, Strong Signal, Full Signal.
7. Antenna Alignment RSSI LED Table LED Status Signal Level Description No Signal When signal strength is less -80dB than “Weak Signal Threshold” . (Weak Both LED are off. Signal Threshold) -85dB Weak Signal When signal strength is greater -80dB or equal than the “Weak Signal Threshold”. Only the Blue LED is on. -75dB Strong Signal When signal strength is greater -60dB or equal than the “Strong Signal Threshold”. Only the Green LED is on.
7. Antenna Alignment Antena Alignment Procedures using RSSI LED SSID: airlive3 Encryption: WPA-PSK 3 km The RSSI LED will only function when the wireless link is established. Therefore, you should enter all the wireless settings correctly before installation. So the connection will establish while doing antenna adjustment.
7. Antenna Alignment Step 3 Enter the Networks SSID and distance information on the page. Click on “Apply” button, and then press “Setup” button on Security Setting. Step 4 Enter the security policy key information, then click on “Apply” button Step 5 Go back to the wireless settings page and click on “RSSI LED Threshold” button.
7. Antenna Alignment Step 6 Now, you can take the AirMax5 to the installation site and adjust the antenna by looking at the LED indicator. You might never get the full signal, but you can find the best position where the signal is strongest.
7. Antenna Alignment 7.5 Antenna Alignment using Signal Survey Signal Survey function can display the RSSI value in real time to help you with antenna alignment. Because Signal Survey is a subnet of the Site Survey function, you do not need to enter the wireless settings in advance. Please follow the example below to complete antenna alignment using Signal Survey function.
7. Antenna Alignment Step 3 Enter the “Distance” information and then click on Apply button. Then select “Site Survey” to scan for available Access Point in the area. Step 4 The following Site Survey screen will appear. press the “Signal Survey” button Step 5 The signal survey screen will appear. The RSSI value will refresh itself every second.
7. Antenna Alignment Step 6 Once the antenna position founds its strongest signal; go back to Site Survey page. Select “airlive3”, and then press “associate” to connect. Step 7 If the network you selected needs encryption, the following page will pop-up. Please enter the correct encryption key and press “Apply” to finish Step 8 The system will pop up a message telling you configuration is successful.
8. Application Example: Infrastructure 8 8. Application Example: Infrastructure In this chapter, you will learn how to utilize AirMax5’s Access Point mode, Client Infrastructure Mode, and Bridge Infrastructure mode in one application example. In addition, you will also learn how to configure multiple SSID and bandwidth control. 8.1 Application Environment In this application example, an AirMax5 in Access Point mode is in the center of an infrastructure topology with two virtual wireless networks.
8. Application Example: Infrastructure Device B: AirMax5 in Bridge Infrastructure Mode Using Total bandwidth Control to limit the Bridge traffic to 10Mbps both way. Use Site Survey wizard to make the connection in a simple one stop process. Device C: AirMax5 in Client Infrastructure Mode Connect to the Access Point using Client Infrastructure Multiple User mode. Use Site Survey to connect and associate with the AP. 8.
8. Application Example: Infrastructure 8.2.1 Device A Wireless Settings Step 1 Click on “setup” button on the “Operation Mode” page Step 2 On the wireless setting page, please enter the SSID, Channel, and distance. Then press “Apply” to make changes.
8. Application Example: Infrastructure Step 3 Click on the “Security Settings”. Then choose “WPA-PSK” Policy. “airliveclientkey” as the pre-share key. Enter the airliveclientkey Step 4 Go back to the wireless setting page and click on “Multiple SSID” button 100 2000 Step 5 Follow the procedure below to create a new SSID “bridgeinf” 1. Enter the SSID name “bridgeinf” 2. Select WPA-PSK as the security policy 3. Enter the pre-share key as “bridgeinfkey” 4.
8. Application Example: Infrastructure 1 2 3 4 8.2.2 Device A Bandwidth Management This purpose is to limit the bandwidth of each wireless client in “airliveclient” network to have a download bandwidth of 2048kbps and upload speed of 512kbps. We should set the policy as followed. Set the Per-User Bandwidth Control by “IP Segment”. The IP segment here has address of 192.168.1.100 with subnet mask of 255.255.255.248. The available host IP addresses will be 192.168.1.96 to 192.168.1.02.
8. Application Example: Infrastructure 2. Select “Per-User Bandwidth Control. 3. Enter “for client” in description 4. Select “IP Segment. subnet mask. Enter 192.168.1.100 for IP, and “255.255.255.248” for 5. Enter 2048 for downlink and 512 for uplink 6. Click on “Add” to add the bandwidth policy.
8. Application Example: Infrastructure 8.3 Device B: Bridge Infrastructure Mode SSID: airliveclient Encryption: WPA-PSK Distance: 2000m SSID: bridgeinf Encryption: WPA-PSK2 Distance: 2000m The configuration settings on the Device B will be as followed Set it to “Bridge Infrastructure Mode” Use “Site Survey” function to associate and connect with the Device A. Set “Total Bandwidth Control” to limit the bandwidth to 10Mbps both upstream and downstream 8.3.
8. Application Example: Infrastructure Step 2 Enter the Network ID(SSID) and distance information. Then click on “Apply” Step 3 Click on “Site Survey” in wireless settings page and the following screen will appear. Select “Bridgeinf”, then press “ASSOCIATE” button to connect. Step 4 The AirMax5 will prompt you to enter security policy information. WPA2-PSK and enter “bridgeinfkey” for Pre-Shared Key.
8. Application Example: Infrastructure Step 3 Click on “Apply”. After a few seconds, the following screen will appear to show successful connection. 8.3.2 Device B Total Bandwidth Control Step 1 Select “Bandwidth Control” from the wireless setting page. Step 2 Enable Bandwidth Control, then select Total Bandwidth Control. Enter 10000Kbps (10Mbps) for both downlink and uplink bandwidth. Click on Apply to finish.
8. Application Example: Infrastructure 8.4 Device C: Client Infrastructure Mode SSID: airliveclient Encryption: WPA-PSK Distance: 2000m SSID: bridgeinf Encryption: WPA-PSK2 Distance: 2000m Device C: AirMax5 in Client Infrastructure Mode Set device IP to 192.168.1.100 with subnet mask of 255.255.255.248 Connect to the Access Point using Client Infrastructure Multiple User mode. Use Site Survey to connect and associate with the AP. 8.4.
8. Application Example: Infrastructure 8.4.2 Device C Wireless Settings Step 1 Go to “Operation Mode” menu. Select “Client Infrastructure”, and then click on “Change Mode” button. 1 2 Step 2 Press “Setup” to enter the wireless settings page. information and click on “APPLY” button.
8. Application Example: Infrastructure Step 3 Press “Site Survey” button, the following page should appear. “airliveclient” and press “Associate” button to connect Select Step 4 The AirMax5 will prompt you to enter security policy information. WPA-PSK and enter “airliveclientkey” for Pre-Shared Key. Select Step 5 Click on “Apply”. After a few seconds, the following screen will appear to show successful connection.
9. Application Example2: Bridge Network 9 9. Application Example 2: Bridge Network Before reading this chapter, please read section 4.3 first on WDS settings. In this chapter, you will learn to how to build a WDS Bridge network by following our step by step example. In addition, we will talk about the general concepts and knowledge about building a long distance connection. This chapter is divided into 3 sections 9.
9. Application Example2: Bridge Network More than 60% of First Fresnel Zone must be cleared for acceptable performance. 6. Secured Mounting is important If the mounting is not secured and shakes during wind, the performance might be drastically reduced. 7. Remember to set correct Distance for long distance connection Without setting the correct distance parameter (or ACKtimeout), the Bridge might not even transmit data at all. 8.
9. Application Example2: Bridge Network 11. For multi-point connection, use bandwidth control to manage the variable distance problem Using ACKtimeout for point-to-point connection is no problem. However, for point to multi-point connection, it becomes a problem at the center point. In the diagram below, the AirMax5 at point A is the center hub. While wireless clients at B, C,and D can set correct ACKtimeout values to point A, the center AP can set only one Acktimeout value.
9. Application Example2: Bridge Network Bridge Infrastructure: Bridge Infrastructure mode connects to AP mode to form a star topology. Bridge Infrastructure mode can not make a Point-to-Point connection. However, it works with WPA-PSK and WPA2-PSK encryption. This mode is also unknown as Client Mode with MAC Address Transparency. When to use which bridge mode: WDS Bridge Mode: When you making point-to-point connection.
9. Application Example2: Bridge Network 9.3 WDS Bridge Network Example In this WDS Bridge example, you will learn how to: Setup the WDS settings Set to use different encryption key for different Link SSID’s function for WDS bridge PING watchdog to maintain the WDS Link. There are total of 3 bridges; with Bridge1 in the middle of Bridge 2 and Bridge 3. The link between Bridge 1 and Bridge 3 will be using WEP Key 1 with SSID airlive1-3.
9. Application Example2: Bridge Network case, the Link between Bridge 1 and 3 is using Key1. Click on “Add” to add the WDS Link. 1 2 3. Adding the second WDS Link to WDS Bridge 2 Name: WDS2 SSID: airlive1-2 MAC address: please enter the MAC address of WDS Bridge2: 00-4f-79-90-00-14 Select Security Policy: Select “WEP” encryption. The AirMax5 will ask you to select which key to use. The Link between Bridge 1 and 3 is using Key2. Click on “Add” to add the WDS Link.
9. Application Example2: Bridge Network The following table will be displayed to show the added WDS links: 4. Setup the PING watchdog. Ping watchdog will reboot or reconnect the AirMax5 when the remote device does not respond to PING command. It helps maintain the WDS Link. Please setup the PING watchdog according to graphic below: 192 192 168 168 1 1 2 3 . WDS Bridge 2 Settings 1. Enter the WEP Encryption Keys.
9. Application Example2: Bridge Network case, the Link between Bridge 1 and 2 is using Key2. Click on “Add” to add the WDS Link. 1 2 3. Setup the PING watchdog. below: Please setup the PING watchdog according to graphic 192 168 .
9. Application Example2: Bridge Network WDS Bridge 3 Settings 1. Enter the WEP Encryption Keys. In this example, we have 4 WEP keys with WEP152-HEX, WEP152-ASCII, WEP128-ASCII, and WEP64-ASCII. Click on “Apply” after entering the keys. 2. Adding the WDS Link to WDS Bridge 1 Name: WDS1 SSID: airlive1-3 MAC address: you should enter the MAC address of WDS Bridge 1: 00-4f-79-90-00-0b Select Security Policy: Select “WEP” encryption. The AirMax5 will ask you to select which key to use.
9. Application Example2: Bridge Network 1 2 4. Setup the PING watchdog. below: Please setup the PING watchdog according to graphic 192 168 1 1 . After the above settings, the 3 WDS bridges should connect properly. Be sure to set the Distance parameter for long distance connection.
10. Application Example3: Routers and Repeater 10 10. Application Example 3: Router and Repeater In this chapter, you will learn how to use Repeater mode and WISP Router mode in one network example. In addition, some router settings such as how to setup virtual server will also be demonstrated. 10.1 Application Environment In the following application, the network is consisted of an Outdoor AP in the center, an AirMax5 in WISP Router mode on the left, and a AirMax5 in Repeater mode on the right. 192.
10. Application Example3: Routers and Repeater 10.2 AirMax5 in WISP Router Mode The following is the configuration procedure for the AirMax5 in WISP Router Mode: Change the AirMax5 to WISP Router Mode Change the LAN IP subnet to 192.168.2.X Change the WAN port IP Use Site Survey to connect with the Outdoor AP Open Virtual Server to FTP server on the LAN side 192.168.1.100 192.168.1.254 192.168.1.1 SSID: OutdoorAP Encryption: WPA-PSK FTP Server: 192.168.2.100 10.2.
10. Application Example3: Routers and Repeater Step 2 Go to “System Configurations -> Device IP settings”. Change the LAN IP address to “192.168.2.1”. Changing this IP address will also change the DHCP IP range to 192.168.2.x subnet. Note: Please make sure your PC’s IP address is also changed to 192.168.2.x subnet in order to configure the AirMax5. Step 3 Go to “Operation Mode -> Setup” to enter the wireless settings.
10. Application Example3: Routers and Repeater Step 5 Click on “Apply”. After a few seconds, the following screen will appear to show successful connection. 10.2.2 WISP Router: WAN Port and Virtual Server Objective: 1. Change WAN port’s IP address to 192.168.1.100 2. open a virtual server port to the FTP server at 192.168.2.100. Step 1 Go to “Operation Mode” menu, click on “Setup” button. page, selecct “WAN port” button.
10. Application Example3: Routers and Repeater Step 2 On the WAN port setting pave, Enter the Static IP information as bellowed: Step 3 Go to “Operation Mode” menu, click on “Setup” button. page, choose “Virtual Server” button.
10. Application Example3: Routers and Repeater Step 4 Select “FTP” for Service Name. Enter 192.168.2.100 for the FTP server’s IP address. Then click on “Add” to finish Step 5 Once the virtual server is added, it will be displayed in the boxed area.
10. Application Example3: Routers and Repeater 10.3 AirMax5 in Repeater Mode The following is the configuration procedure for the AirMax5 in Repeater: Change the AirMax5 to Repeater Mode Use “Site Survey” function to find remote AP with SSID “OutdoorAP”, then establish connection The local wireless network’s SSID is airlive. 192.168.1.100 192.168.1.254 192.168.1.1 SSID: OutdoorAP Encryption: WPA-PSK FTP Server: 192.168.2.100 10.3.
10. Application Example3: Routers and Repeater Step 2 Click on the “Setup” button and the wireless setting page will appear. Please take a look at the description on the graphic below Enter the SSID of the remote AP that you want AirMax5 to repeat Local wireless LAN’s SSID. This can be the same or different from the remote AP’s SSID. In this example, please enter airlive for local SSID.
10. Application Example3: Routers and Repeater Step 5 Click on “Apply”. After a few seconds, the following screen will appear to show successful connection. Now you should have established successful WISP Router and Repeater connections.
11. Emergency Firmware Recovery 11 11. Emergency Firmware Recovery The AirMax5 features an Emergency Recovery function in the bootloader to recovery the AP in case of a firmware crashed. When you can’t access the AirMax5, please first try to repower the CPE or restore the settings to default. You should find the CPE at 192.168.1.1. If it still can not solve the problem, you can try to recover the CPE using the method described in this chapter. Do not power off the AirMax5 or your PC during process.
11. Emergency Firmware Recovery 2. Set the PC as TFTP server, IP address of PC is 192.168.1.254, subnet mask is 255.255.255.0. 3. We recommend the freeware of tftp server, such as “tftpd32”. 4. Run the TFTP server application. Fig. tftpd32 application main window and setting window. 5. Assign the tftp folder in the tftp server. Click on “browse” the folder to select the directory Fig. tftpd32 application: Click on “browse” the folder to select the directory 6.
11. Emergency Firmware Recovery 8. Power on the AIRMAX5 again. If firmware crashed, the device will scan the 192.168.1.254 for TFTP server and read the tftp upload file. 9. Wait for about 20 seconds, a pop-up window shows the firmware repair progress screen.(Shown as Fig. 3) Fig.. Tftpd32 show at the beginning of firmware repair progress. Do not power off the PC or the AirMax5 during this process! Any disconnection or interruption can damage the AirMax5 permanently. 10.
12. Frequent Asked Questions 12 12. Frequent Asked Questions In this chapter, we will address some frequent asked questions about AirMax5 Question: I forgot my password or the IP address of AirMax5. Answer: Please restore your settings to default by press the reset button for more than 5 seconds. You should be able to find your AirMax5 at 192.168.1.1 with password “airlive”.
12. Frequent Asked Questions ==================================================================== Question: I heard AirMax5 can limit the bandwidth of BitTorrent and eDonkey traffic. But I don’t see the option on the Bandwidth Control. Answer: The option to limit bandwidth by application or port is available only on WISP router and AP Router modes.
12. Frequent Asked Questions Question: I tried the Emergency Upgrade procedure. But it doesn’t work, why? Answer: Please make sure the firmware file is renamed to “zImage” without any file extension. The file name has to match exactly with the big capital “I”.
12. Frequent Asked Questions ==================================================================== Question: When do I use Per-User Bandwidth Control by IP, MAC, or IP segment? Answer: In general, IP address control limits the devices on the end node (i.e. PC and WISP router). MAC address control can limit the traffic of a AP/CPE in wireless client mmode. IP address: When you want to limit the bandwidth of a single notebook computer, PC, or WISP router.
13. Specifications 13 13. Specifications The specification of AirMax5 is subject to change without notice. information with caution. Please use the 13.1 Hardware Features 13.1.1 General Hardware Feature Atheros AR-2313 + AR-5112 chipset 802.11a/Super A/Turbo-A mode support (Atheros Proprietary) 8MB Flash, 32MB SDRAM RoHS compliant One 10/100 Mbps Ethernet Port / PoE Port with Auto MDI/MDI-X support 12V Passive PoE (accept up to 24V) 802.
13. Specifications 13.1.4 Dimension and Weight Dimension: 210 x 100 x 32 mm Package Weight: 750g 13.2 Radio Specifications 13.2.1 Frequency Band 5.15 to 5.25GHz: U-NII Low and ETSI Band1 5.25 to 5.35GHz: U-NII Mid and ETSI Band2 5.47 to 5.725GHz: U-NII World Wide and ETSI Band3 5.745 to 5.825GHz, U-NII Upper Band 13.2.2 Rate and Modulation Data Rate : Modulation: Orthogonal Frequency Division Multiplexing (OFDM) 6, 9, 12, 18, 24, 36, 48, 54Mbps 13.2.
13. Specifications 36Mbps @ -79 dBm 48Mbps @ -73dBm 54Mbps @ -71dBm 13.2.5 Supported WLAN Mode 11a mode SuperA without Turbo SuperA with Dynamic Turbo SuperA with Static Turbo 13.3 Software Feature 13.3.1 Operation Mode Access Point Mode (AP mode) Client Infrastructure Mode Client Adhoc Mode WDS Bridge Mode Bridge Infrastructure Mode Repeater Mode WISP Router Mode AP Router Mode 13.3.
13. Specifications IEEE802dot11 MIB Private MIB 13.3.3 Channel Width (Rate Mode) Full: 20 MHz (default) Half: 10 MHz Quarter: 5 MHz 13.3.4 Advance Functions Site Survey with RSSI Signal Survey Total Bandwidth and Per-User Bandwidth Management Noise Immunity Multiple SSID and Tag VLAN QoS (802.
14. Wireless Network Glossary 14 14. Wireless Network Glossary The wireless network glossary contains explanation or information about common terms used in wireless networking products. Some of information in this glossary might be outdated, please use with caution. 802.11a An IEEE specification for wireless networking that operates in the 5 GHz frequency range (5.15 GHz to 5.850 GHz) with a maximum of 54 Mbps data transfer rate. The 5 GHz frequency band is not as crowded as the 2.4 GHz band.
14. Wireless Network Glossary 802.11d Also known as “Global Roaming”. 802.11d is a standard for use in countries where systems using other standards in the 802.11 family are not allowed to operate. 802.11e The IEEE QoS standard for prioritizing traffic of the VoIP and multimedia applications. The WMM is based on a subset of the 802.11e. 802.11g A standard provides a throughput up to 54 Mbps using OFDM technology. It also operates in the 2.4 GHz frequency band as 802.11b. 802.
14. Wireless Network Glossary Adhoc A Peer-to-Peer wireless network. An Adhoc wireless network do not use wireless AP or router as the central hub of the network. Instead, wireless client are connected directly to each other. The disadvantage of Adhoc network is the lack of wired interface to Internet connections. It is not recommended for network more than 2 nodes. Access Point (AP) The central hub of a wireless LAN network.
14. Wireless Network Glossary Bootloader Bootloader is the under layering program that will start at the power-up before the device loads firmware. It is similar to BIOS on a personal computer. When a firmware crashed, you might be able to recover your device from bootloader. Bridge A product that connects 2 different networks that uses the same protocol. Wireless bridges are commonly used to link network across remote buildings. For wireless application, there are 2 types of Bridges.
14. Wireless Network Glossary for hosting Internet Server. A DDNS service provides each user account with a domain name. A router with DDNS capability has a built-in DDNS client that updates the IP address information to DDNS service provider whenever there is a change. Therefore, users can build website or other Internet servers even if they don't have fixed IP connection. DHCP Dynamic Hosting Configuration Protocol. A protocol that enables a server to dynamically assign IP addresses.
14. Wireless Network Glossary ESSID (SSID) The identification name of an 802.11 wireless network. Since wireless network has no physical boundary liked wired Ethernet network, wireless LAN needs an identifier to distinguish one network from the other. Wireless clients must know the SSID in order to associate with a WLAN network. Hide SSID feature disable SSID broadcast, so users must know the correct SSID in order to join a wireless network.
14. Wireless Network Glossary Hotspot A place where you can access Wi-Fi service. The term hotspot has two meanings in wireless deployment. One is the wireless infrastructure deployment, the other is the Internet access billing system. In a hotspot system, a service provider typically need an authentication and account system for billing purposes, and a wireless AP network to provide access for customers.
14. Wireless Network Glossary The 802.3ad Link Aggregation standard defines how to combine the several Ethernet ports into one high-bandwidth port to increase the transmission speed. It is also known as port trunking. Both device must set the trunking feature to work. MAC Media Access Control. MAC address provides layer-2 identification for Networking Devices. Each Ethernet device has its own unique address. The first 6 digits are unique for each manufacturer.
14. Wireless Network Glossary Packet A unit of data sent over a network. Passphrase Used much like a password, a passphrase simplifies the WEP encryption process by automatically generating the WEP encryption keys for the company products. POE Power over Ethernet. A standard to deliver both power and data through one single Ethernet cable (UTP/STP). It allows network device to be installed far away from power ource.
14. Wireless Network Glossary Preamble Type Preamble are sent with each wireless packet transmit for transmission status. Use the long preamble type for better compatibility. Use the short preamble type for better performance Rate Control Ethernet switches' function to control the upstream and downstream speed of an individual port. Rate Control management uses "Flow Control" to limit the speed of a port. Therefore, the Ethernet adapter must also have the flow control enabled.
14. Wireless Network Glossary functions of wireless Access Point and the IP sharing router. RSSI Receiver Sensitivity Index. RSSI is a value to show the Receiver Sensitivity of the remote wireless device. In general, remote APs with stronger signal will display higher RSSI values. For RSSI value, the smaller the absolute value is, the stronger the signal. For example, “-50db” has stronger signal than “-80dB”. For outdoor connection, signal stronger than -60dB is considered as a good connection.
14. Wireless Network Glossary begins, the server sends its public key to the browser. The browser then sends a randomly generated secret key back to the server in order to have a secret key exchange for that session. SSL VPN is also known as Web VPN. The HTTPS and SSH management interface use SSL for data encryption. Subnet Mask An address code mask that determines the size of the network. An IP subnet are determined by performing a BIT-wise AND operation between the IP address and the subnet mask.
14. Wireless Network Glossary TX Output Power Transmit Output Power. The TX output power means the transmission output power of the radio. Normally, the TX output power level limit for 2.4GHz 11g/b is 20dBm at the antenna end. The output power limit for 5GHz 802.11a is 30dBm at the antenna end.. UDP User Datagram Protocol. A layer-4 network protocol for transmitting data that does not require acknowledgement from the recipient of the data.
14. Wireless Network Glossary port on the network device means the port (or wireless connection) that is connected to the Internet side of the network topology. WEP Wired Equivalent Privacy. A wireless encryption protocol. WEP is available in 40-bit (64-bit), 108-bit (128-bit) or 152-bit (Atheros proprietary) encryption modes. Wi-Fi Wireless Fidelity. An interoperability certification for wireless local area network (LAN) products based on the IEEE 802.11 standards.
14. Wireless Network Glossary as traditional IP data over the AP. WMS Wireless Management System. An utility program to manage multiple wireless AP/Bridges. WPA Wi-Fi Protected Access. It is an encryption standard proposed by WiFi for advance protection by utilizing a password key (TKIP) or certificate. It is more secure than WEP encryption. The WPA-PSK utilizes pre-share key for encryption/authentication. WPA2 Wi-Fi Protected Access 2. WPA2 is also known as 802.11i.
