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9. Wireless Network Glossary

AirLive AirMax5X User’s Manual

WPA2

Wi-Fi Protected Access 2. WPA2 is also known as 802.11i. It improves on the WPA security
with CCMP and AES encryption. The WPA2 is backward compatible with WPA.
WPA2-PSK utilizes pre-share key for encryption/authentication.

Содержание AirMax5X Series

Страница 1: ...AirMax5X Series 5G High Throughput Outdoor CPE with PoE Pass through User s Manual ...

Страница 2: ...visLink Corp has made the best effort to ensure the accuracy of the information in this user s guide However we are not liable for the inaccuracies or errors in this guide Please use with caution All information is subject to change without notice This product requires professional installation Please do not attempt to install the device without the necessary knowledge in regards to your country s...

Страница 3: ... is connected Consult the dealer or an experienced radio TV technician for help FCC Caution To assure continued compliance any changes or modifications not expressly approved by the party responsible for compliance could void the user s authority to operate this equipment Example use only shielded interface cables when connecting to computer or peripheral devices FCC Radiation Exposure Statement T...

Страница 4: ... 1 6 3 WDS AP Mode WDS AP 5 1 6 4 Client Infrastructure Mode 6 1 6 5 Wireless ISP Mode 6 1 6 6 AP Router Mode 7 2 Installing the AirMax5X 8 2 1 Before You Start 8 2 2 Package Content 9 2 3 Knowing your AirMax5X 10 2 4 Hardware Installation 11 2 4 1 Standard Pole Mount 12 2 5 Restore Settings to Default 13 3 Configuring the AirMax5X 14 3 1 Important Information 14 3 2 Prepare your PC 14 3 3 Managem...

Страница 5: ...AP Router Mode Setting 35 4 2 5 1 WAN Port Settings 36 4 2 5 2 Dynamic DNS Settings 36 4 2 5 3 Remote Management Settings 37 4 2 5 4 DHCP Server 37 4 2 5 5 DMZ 38 4 2 5 6 Virtual Server Settings 38 4 2 5 7 IP Filtering Settings 39 4 2 5 8 MAC Filtering Settings 39 4 2 5 9 Port Filtering Settings 40 4 2 5 10 Bandwidth Control 40 4 2 6 Wireless ISP Mode Setting 41 4 2 6 1 Remote AP SSID and Site sur...

Страница 6: ...unting Adjustment 54 6 2 Preparation before Installation 54 6 3 Antenna Alignment using Signal Survey 54 6 4 Antenna Alignment using RSSI LED 56 7 Application Example Infrastructure 58 7 1 Application Environment 58 7 2 Central AP Access Point Mode 59 7 2 1 AP Wireless Settings 60 7 3 Client Client Mode 62 7 3 1 Device IP Address 63 7 3 2 Client Wireless Settings 63 7 4 WDS AP Mode and WDS Station...

Страница 7: ...n 5 GHz radio technologies When installed in upright position it is rain and splash proof It features an integrated 14dBi patch antenna and passive POE to simplify the installation The built in antenna can provide up to 20km of distance depending on conditions The firmware of the AP provides up to 6 operations modes to satisfy different application environments ...

Страница 8: ...plains the usage of each wireless operation mode It is a must read Chapter 2 This chapter is about hardware installation You should read through the entire chapter Chapter 3 3 1 Important Information This section has default settings information such as IP password SSID and recommended browser 3 3 Management Interface This section introduces Web Telnet and configurations 3 4 Introduction to Web Ma...

Страница 9: ...system crash 5 3 PoE Pass through Power up another device Chapter 7 Application Example Infrastructure In this chapter you will learn how to use AP mode Client Infrastructure Mode and Bridge Infrastructure mode in one application example In addition you will also learn how to make multiple SSID and bandwidth control Chapter 9 Wireless Network Glossary Explanations on wireless network technical ter...

Страница 10: ...epeater Bridge Client Router WISP Modes Passive 48V PoE Powered PoE Power Pass through Reset button on the POE Injector Support Wireless Access Control Client Isolation 1 6 Wireless Operation Modes The AirMax5X can perform as a multi function wireless device Through the AirLive web interface users can easily select which wireless mode they wish the AirMax5X to perform The AirMax5X can be configure...

Страница 11: ...oint it is necessary to use the WDS AP mode for remote side AirMax5X and another AirMax5X running for WDS station 1 6 3 WDS AP Mode WDS AP In WDS Access Point mode the AirMax5X functions similar as Access Point In this mode the remote client must have WDS Wireless Distribution System capability If you require the PC s or client s MAC addresses to be preserved when the data pass through the Access ...

Страница 12: ...puter or a router to the LAN port of AirMax5X to get network access This mode is often used by WISP on the subscriber s side 1 6 5 Wireless ISP Mode In Wireless ISP Mode AirMax5X connects to the remote Access Point as in Client Infrastructure Mode On the LAN side it acts like a wired router for IP sharing function This mode is best used for IP sharing application for WISP subscribers In this mode ...

Страница 13: ...e a wireless router The non PoE port of the AirMax5X will become WAN port Both the wireless and the passive PoE port of AirMax5X becomes the LAN side User can manage the AirMax5X through the wireless or passive PoE port And if the remote management is opened user can also get to manage AirMax5X via the WAN side ...

Страница 14: ...art installation with exception of the PoE Ethernet Cable You can use a good quality CAT 5E outdoor graded Ethernet cable shielded with anti UV according to the length you need The AirMax5X must be installed in the upright position if the unit is located in outdoor or wet environments The use of 5GHz spectrum the allowed channels can be very in different country Please consult with your country s ...

Страница 15: ...e contains the following items One AirMax5X main unit One 48V 1A DC power adapter Passive PoE DC Injector 1 x Plastic Straps User s Guide CD Quick Start Guide The PoE Ethernet cable is not included in the package You may choose an outdoor specification Ethernet cable according to the length you need ...

Страница 16: ...t LED Behavior LED Indicator State Description ON The AirMax5X is powered ON 1 PWR LED Off The AirMax5X is powered Off ON Port linked Off No link 2 Secondary Port LED Data is transmitting or receiving on the LAN interface Flashing ON Port linked Off No link 3 Main Port LED Data is transmitting or receiving on the LAN interface Flashing ...

Страница 17: ...rdware Installation Please prepare a screw driver and an outdoor graded PoE Ethernet cable with adequate length according to your need 1 Push the button in the side to remove upper housing 2 Pass through Ethernet cable from the hole insert the cable to Secondary port ...

Страница 18: ...housing and make sure the housing is well installed 4 Install POE Injector 2 4 1 Standard Pole Mount Your AirMax5X comes standard with 1 plastic straps for pole mounting Please follow the procedure below to install 1 Put the plastic strap through the holes on the Pole Mount holders ...

Страница 19: ...tighten the strap around the pole as tightly as possible 2 5 Restore Settings to Default If you have forgotten your AirMax5X s IP address or password you can restore your AirMax5X to the default settings by pressing on the reset button for more than 5 seconds The reset button is located on the PoE Kit Please see diagram below for details ...

Страница 20: ...0 The default user s name is admin The default password is airlive The default wireless mode is Access Point mode After power on please wait for 2 minutes for AirMax5X to finish boot up Please remember to click on Apply for new settings to take effect 3 2 Prepare your PC The AirMax5X can be managed remotely by a PC through either the wired or wireless network The default IP address of the AirMax5X...

Страница 21: ...web interfaces Web Management HTTP You can manage your AirMax5X by simply typing its IP address in the web browser Most functions of AirMax5X can be accessed by web management interface We recommend using this interface for initial configurations To begin simply enter AirMax5X s IP address default is 192 168 1 1 on the web browser The default username is admin and password is airlive ...

Страница 22: ...o Web Management 3 4 1 Welcome Screen and Login After the procedure above the Welcome Screen will appear Welcome Screen gives a brief introduction of the AirMax5X s main function category By click on the function category it will direct you to the corresponding web management menu ...

Страница 23: ...ic functions are also in this menu category For explanation of different wireless modes please refer to Chapter 1 System Configuration All non wireless and router mode settings are in this category The system configurations including changing password upload firmware backup configuration settings PING watchdog and setting management interface Device Status This section for monitoring the status of...

Страница 24: ...gement interface to get an overall picture of the functions and interface Below are the recommended initial configurations for first time login 3 5 1 Choose the wireless Operation Modes The wireless settings of AirMax5X are dependent on the wireless operation mode you choose Therefore the first step is to choose the operation mode For explanation on when to use what operation mode please refer to ...

Страница 25: ...t Wireless Mode Click to configure wireless settings 1 2 3 5 2 Change the Device s IP Address The default IP address is at 192 168 1 1 You should change it to the same subnet as your network Also if you want to manage AirMax5X remotely you have to set the Gateway and DNS server information To setup the IP settings for AirMax5X please select System Configuration Device IP Settings After entering th...

Страница 26: ...at the system log will record the correct date and time information Please go to System Configuration Time Settings We recommend you choose Enable NTP so the time will be keep even after reboot If your AirMax5X is not connected to Internet please enter the time manually Please remember to select your local time zone and click Apply to finish 1 2 3 1 5 3 2 4 6 ...

Страница 27: ...ing the AirMax5X AirLive AirMax5X User s Manual 21 3 5 4 Change Password You should change the password for AirMax5X at the first login To change password please go to System Configuration Password Settings menu ...

Страница 28: ...layed in Top Menu Bar Within each main menu category there are sub menu options which are displayed on the Side Menu Bar Operation Mode This menu is where you will find wireless and WAN settings The AirMax5X s wireless settings are dependent on the wireless operation mode you choose only the applicable wireless settings for selected operation mode are shown For example WAN port setting is availabl...

Страница 29: ...on mode you choose Therefore the first step is to choose the operation mode For explanation on when to use what operation mode please refer to Chapter 1 When you select Wireless Settings in the welcome screen or click on the Operation Mode on the top menu the following screen will appear Configure Wireless and WAN Settings This tells you what the Current Operation Mode is Select one of the wireles...

Страница 30: ...ure network Other AirMax5X or 802 11a n CPE can connect to AP mode through Client Infrastructure Mode In this mode normally your AirMax5x will not provide the IP to the client Notebook or PC Please make sure that there are another DHCP server which can provide the IP in the network or all of the wireless cards clients are set the difference IP manually All of the Ethernet Ports are LAN ports in Ac...

Страница 31: ...he SSID will be hidden only users who know the SSID can associate with this network 4 2 1 3 Radio Mode AirMax5X is 802 11n 2T2R wireless outdoor CPE but it is backward compatible with 802 11a The default radio mode is auto select however you can fix at 11n mode or 11 a mode 4 2 1 4 Channel The channel is to select the wireless channel for AirMax5X The channel which can be selected is difference in...

Страница 32: ...entication and or data encryption The AirMax5X features various security policies including WEP 802 1x WPA RADIUS WPA PSK WPA2 RADIUS WPA2 PSK and WPA PSK Please note not all security policies are available in all operation modes All wireless devices on the same network must use the same security policy We recommend using WPA PSK or WPA2 PSK whenever possible For WDS Bridge we recommend using AES ...

Страница 33: ...eld then it is necessary to fill WEP Key 1 The restriction to the Key length is depending on the Key type you selected Hex The Key length can be 10 or 26 character to Hex Key type and the character can be 1 0 and A F If the Key length is not 10 nor 26 the alert message should pop up as below ASCII The Key length can be 5 or 13 character to ASCII Key type and the character can be any ASCII characte...

Страница 34: ...ndard and the CCMP AES Encryption ll 2 requires a RADIUS server available in order to do authentication same as 802 1x thus there is no shared key required Encryption Type There are two encryption types TKIP and AES CCMP While AES provides better security than TKIP some wireless client stations may not be equipped with the hardware to support it You can select TKIP AES to allow TKIP clients and AE...

Страница 35: ...s is an ASCII string with 8 to 63 characters Please make sure that both the AirMax5X and the wireless client stations use the same key Encryption Type There are two encryption types TKIP and AES CCMP While AES provides better security than TKIP some wireless client stations may not be equipped with the hardware to support it You can select TKIP AES to allow TKIP clients and AES clients to connect ...

Страница 36: ...re Km for transmit distance For example if the distance between AP and Client is 10Km it is better to set the transmit distance to 12Km 4 2 1 9 DFS Control DFS dynamic frequency selection is required to operate WiFi devices in 5GHz Before you disable the DFS please make sure your country s regulatory is not violated 4 2 1 10 Advanced Setting Operation Mode Setup Advance Settings This page includes...

Страница 37: ...reshold value we can get varying fragment sizes Aggregation A part of the 802 11n standard that allows sending multiple frames per single access to the medium by combining frames together into one larger frame It creates the larger frame by combining smaller frames with the same physical source destination end points and traffic class QoS into one large frame with a common MAC header Aggregated Fr...

Страница 38: ...e MAC Address and then click Add The table lists all configured MAC Filter entries To delete entries check the corresponding Select boxes and then press Delete Selected 4 2 2 Client infrastructure mode setting This mode is also known as Client mode In Client Infrastructure mode the AirMax5X acts as a wireless adapter to connect with a remote Access Point Users can attach a computer or a router to ...

Страница 39: ...SID and Site Survey In Client mode you need to decide which remote AP that he she want to associate User can entry the SSID by themselves or click the site survey button the AirMax5X will scan the available AP After click the site survey button the available AP will pop up in other page as below ...

Страница 40: ... Then Click Save Buttom If the key is correct the AirMax5X will ask users to reboot the device After reboot is finished the AirMax5X is connected with another remote AP It is important that AirMax5X need to set the transmit distance If the AirMax5X can not connected with remote AP please change the setting of transmit distance Detail of the setting please refer the chapter 4 2 2 2 Tips Even the IP...

Страница 41: ... AirMax5X functions as a WDS bridge with Access Point Mode For WDS Access Point it can be connected by other AirMax5X which using the WDS station In this mode the setting is same as Access Point Mode Please refer chapter 4 2 1 for the detail setting 4 2 4 WDS Station Mode setting In WDS Station mode the AirMax5X functions as a client which can connect with remote WDS Access Point In this mode the ...

Страница 42: ... not provide the IP the client needs to assign the IP by themselves 4 2 5 1 WAN Port Settings Operation Mode Setup WAN Port Settings The AirMax5X support different authentication and IP assignment standards for the WAN port It includes fixed IP DHCP PPPoE PPTP and L2TP protocols Please consult with your ISP about what authentication type is used for the WAN port connection 4 2 5 2 Dynamic DNS Sett...

Страница 43: ... Web Server Access You can enable or disable HTTP service from WAN side Response to WAN ping You can disable or enable whether AirMax5X will response to PING command 4 2 5 4 DHCP Server Operation Mode Setup DHCP Server Settings DHCP Server Settings is to assign private IP address to the devices in your local area network LAN The default LAN IP address of AirMax5X is 192 168 1 1 changing AirMax5X s...

Страница 44: ...erver is selected Internet traffic not destined for a valid virtual server is redirected to this privately addressed LAN client This can be used together with a separate firewall device to perform additional security functions 4 2 5 6 Virtual Server Settings Operation Mode Setup Virtual Setting This allows you to specify one or more applications running on server computers on the LAN that may be a...

Страница 45: ... restrict data transmission Port Range Fill in the start port and end port number of source to restrict data transmission Dest IP Address Fill in the IP address of destination to restrict data transmission ource IP Address Fill in the IP address of source to restrict data transmission Protocol Select the protocol that you want to restrict There are four options None TCP UDP and ICMP Comment Make a...

Страница 46: ... the maximum speed of individual device It is also known as Traffic Shaping The AirMax5X provides Per IP Bandwidth Control for both uplink and downlink speed It controls the speed of both wireless and wired interface To configure please click on the Bandwidth Control button under wireless settings The following screen will appear Enable Select to enable Bandwidth Control The default value is disab...

Страница 47: ...P sharing application for WISP subscribers In this mode the WAN is the wireless client side the LAN is the wired side Once you click on the Setup page the wireless settings will appear 4 2 6 1 Remote AP SSID and Site survey In Wireless ISP mode you need to decide which remote AP that you want to associate User can entry the SSID by themselves or click the site survey button the AirMax5X will scan ...

Страница 48: ... connected with another remote AP The rest of the setting in wireless ISP is same as the AP Router mode Please refer the chapter 4 2 5 Add to WDS Please choose a SSID before click on this button This button is available only in Client WDS or WDS AP modes Once you click on this button AirMax5X will attempt to make a connection with the selected network If there is encryption needed the AirMax5X wil...

Страница 49: ...l Configurations first 5 1 System Configuration When you click on the System Configuration menu on the top menu bar the following screen will appear The system configuration includes all non wireless settings We will explain their functions here 5 1 1 Device IP Settings System Configurations Device IP Settings The Device IP Settings screen allows you to configure the IP address and subnet of the d...

Страница 50: ...slates logical names such as www yahoo com to IP addresses like 66 218 71 80 In order to do this a query is made by the requesting device to a DNS server to provide the necessary information If your system administrator requires you to manually enter the DNS Server addresses you should enter them here Click Save and Restart to go to the next screen 5 1 2 Time Settings System Configuration Time Set...

Страница 51: ...Settings menu 5 1 4 System Management System Configuration System Management In this page administrator can change the management parameters and disable enable management interface PoE Pass Through To Enable PoE Pass Through The detail introduction of PoE Pass Through please refer the chapter 5 3 UPnP Administrator can enable or disable the UPnP function here Syslog To enable or disable the syslog...

Страница 52: ...ING failed For example 2 means the CPE will reconnect if the PING doesn t respond for 2 times When you set the Ping Frequency to every 120 seconds and Fail Tries to 2 It means the CPE will ping every 120 seconds after the second failure it will reconnect Actions Reboot the AirMax5X will do a power recycle after Ping Failed 5 1 6 Firmware Upgrade System Configuration Firmware Upgrade You can upgrad...

Страница 53: ... the new firmware take effect Do not power off the device while upgrading the firmware It is recommended that you do not upgrade your AirMax5X unless the new firmware has new features you need or if it has a fix to a problem that you ve encountered For the data structure might be change after firmware upgrade it s better for the administrator to reset the device to factory default for cleaning the...

Страница 54: ...te the configuration file and then click the RESTORE button to restore the system configuration from the specified file 5 1 8 Factory Default System Configuration Factory Default You can reset the configuration of your AirMax5X to the factory default settings Step 1 Select Factory Default from the System Configuration menu Step 2 Click YES to go ahead and restore the configuration to the factory d...

Страница 55: ...N IP MAC in router modes Gateway IP in router modes DNS IP etc Below are some additional explanations on some status information of this page CPU Loading Display the CPU usage Memory Information Display how much memory is used and free Firmware version Shows the current firmware version installed in this AirMax5X Wireless MAC This is the wireless MAC address BSSID of this AiMax5N Uptime This is th...

Страница 56: ...ion about wireless status such as current operation mode wireless traffic error packets device s BSSD connecting State channel and encryption used 5 2 3 Internet Information This page shows the information about WAN port of the AirMax5X It includes the type of WAN port authentication used and the IP address information about the WAN port ...

Страница 57: ... information about wireless clients that are associated with AirMax5X It includes signal strength TX and RX data rate MAC address and the state 5 2 5 System Log The System Log displays the system activities login and system error report If you need to report a problem to Air Live please be sure to send us the System Log information also ...

Страница 58: ...t default settings Before enable the PoE Pass through function please make sure the device you want to power up is connect to the secondly port and the device can accept 48V input To enable the PoE pass through please follow below steps 1 Connect the AirMax5X s mainly port to PoE injector s PoE port 2 Connect the PC NB in PoE injector s LAN port 3 Connect the device you want to power up to the sec...

Страница 59: ...ifferent angle coverage is required In this chapter we will first explain the design and function of the built in antenna We will provide instructions on the two alignment methods later in this chapter 6 1 About AirMax5X s Antenna The AirMax5X s built in 2T2R antenna has the following characteristics Gain 14dBi Type Patch Antenna Vertical Coverage Angle 20 degree forward Horizontal Coverage Angle ...

Страница 60: ...it find remote AP The correct way is to use a Graphic Information System GIS program such as Google Earth to find the locations of the installation site and the nearest AP Bridge Then measure the approximate direction and angle It will also help to bring a pair of hi power binocular for sight survey 6 3 Antenna Alignment using Signal Survey Signal Survey function can display the Signal Strength va...

Страница 61: ...trength of the desired AP For identify the AP quicker we suggest you to written the MAC address of the desired AP and using the MAC to filter out your target Step 3 If the Signal Strength is too weak to make a connection please adjust the antenna Step 4 Refresh the Site Survey page and check the Signal Strength again ...

Страница 62: ...refore you should enter all the wireless settings correctly before installation So the connection will establish while doing antenna adjustment Below table is RSSI Level for AirMax 5X s LED Number of LED lighting RSSI Level dBm 3 35 60 2 65 75 1 75 95 Non 35 or 95 6 4 2 Antenna Alignment Procedures using RSSI LED At the first please configure the Airmax 5x into client mode or WDS station mode Plea...

Страница 63: ...6 Antenna Alignment AirLive AirMax5X User s Manual 57 ...

Страница 64: ...tion mode in one application example 7 1 Application Environment In this application example an AirMax5X in Access Point mode is in the center of an infrastructure topology with two virtual wireless networks Each wireless network has its own SSID security Policy and Bandwidth policy Below is the general description about the devices of the network 7 7 Application Example Infrastructure ...

Страница 65: ...rLive01 and share the bandwidth to remote LAN 7 2 Central AP Access Point Mode The configuration of Central AP involves the followings Set SSID to Airlive Set the Transmit Distance to the longest distance between AP to the Client For example There are two Clients One is 5Km away the central AP the other is 1Km Please set the Transmit Distance longer than 5Km ...

Страница 66: ...AirMax5X in AP Mode Set device IP to 192 168 1 1 with subnet mask of 255 255 255 248 Connect to the Access Point using AP mode Step 1 Click on setup button on the Operation Mode page Step 2 On the wireless setting page please enter the SSID Channel and Transmit distance then press Apply to make changes ...

Страница 67: ...7 Application Example Infrastructure AirLive AirMax5X User s Manual 61 Step 3 Go to the Security Setting and set the security policy separately ...

Страница 68: ...7 3 Client Client Mode Client AirMax5X 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 mode Use Site Survey to connect and associate with AP Set the transmit distance to correct value ...

Страница 69: ...elect Assign Static IP to this device Then enter the IP address and Subnet Mask as bellowed Click Apply when finished 7 3 2 Client Wireless Settings Step 1 Go to Operation Mode menu Select Client and then click on Change Mode button Step 2 Press Setup to enter the wireless settings page Click on the Site Survey button for searching the remote AP 1 2 ...

Страница 70: ... s Manual 64 Step 3 After pressing Site Survey button the following page should appear Select AirLive01 and press Associate button to connect Step 4 The AirMax5X will prompt you to enter security policy information Select WPA PSK and enter your Pre Shared Key ...

Страница 71: ...d Client modes 7 4 WDS AP Mode and WDS Station Mode If you require the PC s or client s MAC addresses to be preserved when the data pass through the Access Point it is necessary to use the WDS AP mode for remote side AirMax5X and another AirMax5X running for WDS station in Client side To set the AirMax5X it is very simple All of the setting is same as the access point mode and client mode Please r...

Страница 72: ... Max limited according to regulations in EU and U S AP Client Router WISP Modes WDS AP WDS Station Passive 48V PoE Powered PoE Pass Through Support Wireless Access Control Client Isolation 8 2 Specifications Hardware 2T2R Wireless 802 11 a n Standard 2 x 10 100 Ethernet Port 48V Passive PoE accept from 24V 48V Reset Button on PoE Injector and AirMax5X Antenna Built in Directional Antenna 14dBi Fre...

Страница 73: ...s 802 11a up to 27 1 dBm 802 11n up to 22 1 dBm Mode AP Client Router WISP Modes WDS AP WDS Station Security 64 128bit WEP WPA TKIP with IEEE 802 11x WPA2 AES with IEEEE 802 11x Software Site Survey with RSSI Signal Survey User Friendly Web Management Channel list selection Support adjustable output power WEP over WDS support AP Client Router WISP Modes WDS AP WDS Station Support DHCP Server Clien...

Страница 74: ...s AirLive AirMax5X User s Manual 68 QoS bandwidth management Firewall IP Port MAC filtering Firmware upgrade and configuration backup via Web UI Certificate FCC CE Product Size L x W x H mm 254 1mm X 127 1mm X 64 0mm ...

Страница 75: ...en comparing to 802 11g 802 3ad 802 3ad is an IEEE standard for bonding or aggregating multiple Ethernet ports into one virtual port also known as trunking to increase the bandwidth 802 3af This is the PoE Power over Ethernet standard by IEEE committee 803 af uses 48V POE standard that can deliver up to 100 meter distance over Ethernet cable 802 11b International standard for wireless networking t...

Страница 76: ...th a significant increase in the maximum data rate from 54 Mbps to 600 Mbps 802 11n standardized support for multiple input multiple output MIMO and frame aggregation and security improvements 802 1Q Tag VLAN In 802 1Q VLAN the VLAN information is written into the Ethernet packet itself Each packet carries a VLAN ID called Tag as it traveled across the network Therefore the VLAN configuration can ...

Страница 77: ...tting is too high then throughput will be lost due to waiting for the Ack Window to timeout on lost packets If the ACK setting is too low then the ACK window will have expired and the returning packet will be dropped greatly lowering throughput By having the ability to adjust the ACK setting we can effectively optimize the throughput over long distance links This is especially true for 802 11a and...

Страница 78: ...e calculation For example if the cable and connector loss is 3dBm and the output power is 20dBm the output power at the cable end is only 17dBm Client Client means a network device or utility that receives service from host or server A client device means end user device such as wireless cards or wireless CPE CPE Devices CPE stands for Customer Premises Equipment A CPE is a device installed on the...

Страница 79: ...ted by dots In www airlive com the airlive com is the domain name DoS Attack Denial of Service A type of network attack that floods the network with useless traffic Many DoS attacks such as the Ping of Death and Teardrop attacks exploit limitations in the TCP IP protocols Encryption Encoding data to prevent it from being read by unauthorized people The common wireless encryption schemes are WEP WP...

Страница 80: ... core routers that connect networks in different IP subnet together In a LAN environment with an IP sharing router the gateway is the router In an office environment gateway typically is a multi function device that integrates NAT firewall bandwidth management and other security functions Hotspot A place where you can access Wi Fi service The term hotspot has two meanings in wireless deployment On...

Страница 81: ...rt mode encrypts only the data of each packet but leaves the header untouched The more secure Tunnel mode encrypts both the header and the payload On the receiving side an IPSec compliant device decrypts each packet LACP 802 3ad Trunking 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...

Страница 82: ...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 A POE system typically compose of 2 main component DC Injector Base Unit and Splitter Terminal Un...

Страница 83: ...e 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 One way to force the adapter s flow control on is to set a port to half duplex mode RADIUS Remote Authentication Dial In User Service An authentication an...

Страница 84: ...mit The computer will wait for a CTS Clear To Send message before sending data RTS Threshold RTS Request to Send The RTS CTS clear to send packet will be send before a frame if the packet frame is larger than this value Lower this value can improve the performance if there are many clients in your network You can try 1500 1000 or 500 when there are many clients in your AP s network SNMP Simple Net...

Страница 85: ... Each individual wireless LAN will probably use the same subnet for all the local computers it talks to Super A Super A is an Atheros proprietary turbo mode to increase speed over standard 802 11a mode It adds Bursting and Compression to increase the speed If you live in countries that prohibit the channel binding technology i e Europe you should choose Super A without Turbo if you need more speed...

Страница 86: ...rease the security of information transferred over the Internet VPN creates a private encrypted tunnel from the end user s computer through the local wireless network through the Internet all the way to the corporate network Walled Garden On the Internet a walled garden refers to a browsing environment that controls the information and Web sites the user is able to access This is a popular method ...

Страница 87: ...s Mobility is allowed up to 40 mph WDS Wireless Distribution System WDS defines how multiple wireless Access Point or Wireless Router can connect together to form one single wireless network without using wired uplinks WDS associate each other by MAC address each device WLAN Wireless Local Area Network A type of local area network that uses high frequency radio waves rather than wires to communica...

Страница 88: ...5X User s Manual 82 WPA2 Wi Fi Protected Access 2 WPA2 is also known as 802 11i It improves on the WPA security with CCMP and AES encryption The WPA2 is backward compatible with WPA WPA2 PSK utilizes pre share key for encryption authentication ...

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