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Askey Computer WLC3030 Скачать руководство пользователя страница 31

Chapter 3 Wireless LAN Monitor Utility

31

Screen Item

Description

Channel

Select the channel (1 ~ 11) for your wireless network (Ad-Hoc mode
ONLY).

If you are using Infrastructure mode, your Wireless LAN Card will
automatically use the channel specified by the AP. You don’t need to
set up this item.

Power Saving

Specifies the power save mode to be used in order to extend the

battery life of your notebook.

!

Disabled – The wireless adapter receives full power from the

PC. The Power Save function is disabled.

!

Normal – The driver turns off power to the wireless adapter for
short periods over briefly short time intervals.

!

Maximum – The driver turns off power to the wireless adapter
for longer periods over more long spaced time intervals.

Encryption

Encryption technology is used to enhance wireless media security. Your encryption settings
must match those used by the Access Points or wireless stations (Ad-hoc mode) in your
network, or your computer will be unable to communicate with others through the network.

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Содержание WLC3030

Страница 1: ...802 11 b g Wireless LAN Card User s Manual ...

Страница 2: ...er provides this documentation without warranty term or condition of any kind The seller may make improvements or changes in the product s and or the program s described in this documentation at any time Other product and company names herein may be trademarks of their respective owners 2003 All rights reserved Rev 1 0 Mini PCI MAC 009096 522627 Driver 2 4 0 71 Utility 1 03 00 CardBus MAC FFFFFF F...

Страница 3: ... 10 Roaming 12 802 11b and 802 11g 13 Chapter 2 Installing the Wireless LAN Card 15 System Requirements 15 Installing Wireless LAN Card Driver and Software 16 General Guidelines for OS Specific Situations 22 Chapter 3 Wireless LAN Monitor Utility 25 Accessing the Wireless LAN Monitor Utility 25 Note to Windows XP Users 26 Status Tab 28 ...

Страница 4: ...tions 47 Chapter 5 Windows XP Wireless Zero Configuration Utility 49 Connecting to an Access Point or Wireless LAN Card 49 Viewing Wireless Connection Status 51 Configuring Your Wireless Properties 52 Chapter 6 Disabling Uninstalling the Wireless LAN Card 59 Disabling the Wireless LAN Card 60 For Windows 98 Me 60 For Windows 2000 XP 60 Uninstalling the Wireless LAN Card Software 61 Chapter 7 Updat...

Страница 5: ...re 71 Wireless LAN Software 72 Appendix B Regulatory Compliance 73 FCC Part 15 Declaration of Conformity DoC 73 FCC Rules and Regulations Part 15 74 Appendix C Setting Up TCP IP 77 For Windows 98 ME 77 For Windows 2000 XP 79 Appendix D Specifications 81 Glossary 83 ...

Страница 6: ...figuration Tab 37 Figure 3 5 Profile Tab 38 Figure 3 6 Site Monitor Tab 42 Figure 3 7 About Tab 43 Figure 5 1 Windows XP Configuration Utility Connect to Wireless Network 50 Figure 5 2 Windows XP Connection Status 52 Figure 5 3 Windows XP Connection Properties General 53 Figure 5 4 Windows XP Connection Properties Wireless Networks 54 Figure 5 5 Windows XP Add Preferred Networks 55 Figure 5 6 Wind...

Страница 7: ...less adapter 32 bit CardBus Adapter Mini PCI Adapter For brevity throughout this manual Wireless LAN Card is used to indicate both adapters Also the following terms abbreviations are used interchangeably Access Point AP Peer to Peer Ad Hoc Wireless LAN WLAN Ethernet network LAN network ...

Страница 8: ...ion Note Contains related information text that corresponds to a topic Caution Represents essential steps actions or messages that should not be ignored This User s Manual contains information on how to install and configure your Wireless LAN Card From now on we will guide you through the correct configuration steps to get your device up and run ...

Страница 9: ...ompatible with IEEE 802 11 standards which means it can interoperate with devices from other vendors that also follow this standard The 802 11b g Wireless LAN Card can transmit data up to 54 Mbps The 802 11b g products are backward compatible with 802 11b devices Since the 802 11b standard has been widely adopted in many devices and hotspots you will still be able to be connected wherever you go ...

Страница 10: ... and peripheral devices such as printers The Wireless LAN Card allows you to interact with other computers without having to run cables normally associated with networks This lets you move your computer around while staying connected to your network There are two ways to use the Wireless LAN Card One way is to connect directly to one or more Wireless LAN Card equipped computers forming an Ad Hoc P...

Страница 11: ...cation between computers within range that have compatible wireless adapters installed This mode is typically used in a relatively small network A typical Ad Hoc network may look like Figure 1 1 where all the wireless stations use the same Service Set Identity SSID channel WEP settings if enabled Figure 1 1 Ad Hoc Mode ...

Страница 12: ...ructure Mode An Infrastructure network uses an Access Point or several Access Points as a gateway linking the wireless network to a wired LAN As a result portable workstations or desktops on your wireless network have access to all of the features of your wired LAN including e mail Internet access network printers and files server To successfully associate with an Access Point the wireless station...

Страница 13: ...rd is set to use Infrastructure mode Your 802 11b g card cannot connect to an 802 11a Access Point since 802 11a devices are not compatible with 802 11b g devices Operating in 802 11b g mode you can connect to 802 11b or 802 11g compatible Access Point Figure 1 2 Infrastructure Mode ...

Страница 14: ... coverage area for seamless wireless access Within an extended service area all Access Points and wireless clients must have the same Service Set Identity SSID Roaming among different Access Points is controlled automatically to maintain the wireless connectivity at all times Figure 1 3 Roaming Across Multiple Access Points ...

Страница 15: ...f 1 2 5 5 and 11 Mbps This standard employs Direct Sequence Spread Spectrum DSSS technologies 802 11g This standard is a new emerged wireless networking standard It provides data transfer of up to 54 Mbps up to 5 times faster than 802 11b Since 802 11g operates on the same frequency of 2 4 GHz as 802 11b it is backwards compatible with existing 802 11b devices The benefit is that you can preserve ...

Страница 16: ...igure and monitor your Wireless LAN Card After completing the steps listed above if you need to set up the TCP IP protocol for the Wireless LAN Card to communicate with your network refer to Appendix C Setting Up TCP IP for details System Requirements To use the Wireless LAN Card your computer must meet the following minimum requirements Pentium class PC 300MHz or better recommended 64 Mbytes reco...

Страница 17: ...Wireless LAN Card and its driver and software properly installed If this is the case ignore this chapter and proceed with the configuration steps in the next chapter b If your system has not been installed with the driver the Windows PnP function will detect the wireless adapter and issue a dialog box requesting for its driver Click Cancel to quit the wizard at this point For CardBus adapter Do no...

Страница 18: ...lity CD into your CD ROM drive and select Utility Driver Or run Setup exe from D Utility Driver folder of the Software Utility CD where D is the drive letter When the welcome screen pops up click Next 3 For quick installation select Typical and click Next Then skip to step 10 For custom installation to select the parameters that you would like to use select Custom and click Next to go to next step...

Страница 19: ...efault destination folder click Next If you are to install the software to a different folder click Browse to select another folder and then click Next 5 If required you may type a new folder name for the program icons to be added to the Program Folder Then click Next to continue ...

Страница 20: ...Chapter 2 Installing the Wireless LAN Card 19 6 Select the network type you prefer and then click Next 7 Enter the SSID of the wireless network you wish to connect to Then click Next ...

Страница 21: ...d User s Manual 20 8 This step is for Ad Hoc network type only For Ad Hoc mode network specify a channel 1 11 for the Wireless LAN Card 9 If the settings listed are correct click Next Otherwise click Back to modify your settings ...

Страница 22: ...LAN Card 21 10 For CardBus adapter only The following screen will pop up asking you to insert your wireless adapter into the PCMCIA slot of your computer Please do as the dialog request 11 When the following screen appears click Finish ...

Страница 23: ... SE CD ROM click OK Then enter the path to your Windows 98 SE original files and click OK If Windows 98 SE original files are not on your computer you will need to remove the Software Installation CD and then insert your Windows 98 SE installation CD Otherwise just locate the Windows 98 CAB files on your computer When prompted to restart your computer click Yes For Windows Me If prompted to restar...

Страница 24: ...Install the software automatically and click Next Note If you need to set up the TCP IP address or the subnet mask refer to Appendix C Setting Up TCP IP for details Now you are done with the installation procedure You should be able to see the Wireless LAN Monitor icon appearing on the right side of the taskbar Proceed to next chapter to configure or fine tune your Wireless LAN Card settings ...

Страница 25: ...ink test See the appropriate subsection as required Accessing the Wireless LAN Monitor Utility The Wireless LAN Monitor Utility is launched automatically with its monitor icon located on the system tray If the utility is not launched manually start it by selecting Start Programs IEEE 802 11g Wireless LAN IEEE 802 11g Wireless LAN Utility To access the Wireless LAN Monitor Utility you can take any ...

Страница 26: ...can find the following buttons in any tab which perform the self explanatory tasks Radio Enable Disable Allows to enable disable the RF signal Exit Hides the Wireless LAN Monitor Utility user interface Note to Windows XP Users Under Windows XP if you are launching the Wireless LAN Monitor Utility for the first time you will find that you are only allowed to view the Status and About tabs This is b...

Страница 27: ...Wireless Networks tab uncheck the Use Windows to configure my wireless network settings box and click OK If you need to revert back to using Windows XP Wireless Zero Configuration Utility just go to the Wireless Networks tab and check the Use Windows to configure my wireless network settings box and click OK For information on using Windows XP Wireless Zero Configuration Utility refer to Chapter 5...

Страница 28: ...ofile Name of your current settings SSID Displays the name of the wireless network your station is currently connected to Network Mode Infrastructure or Ad Hoc peer to peer Channel Shows which channel is currently in use Tx Rate Transmission rate at which data is transferred Privacy WEP enabled or disabled Power Saving Displays whether power consumption is enabled by the Wireless LAN Card to exten...

Страница 29: ...Item Description Received Number of packets received Link Status Displays whether your Wireless LAN Card is connected or disconnected Signal Strength Displays the signal strength in dbm and in graphic only in infrastructure mode Figure 3 2 Status Tab ...

Страница 30: ...Hoc network must be same For Infrastructure mode Enter the Network Name you wish to join in If this field is left blank or using the special SSID any your Wireless LAN Card will connect to the first compatible and open AP with the best signal strength within the connection range It allows your Wireless LAN Card to wander across networks with different SSID Network Name Operating Mode Select your o...

Страница 31: ...ok Disabled The wireless adapter receives full power from the PC The Power Save function is disabled Normal The driver turns off power to the wireless adapter for short periods over briefly short time intervals Maximum The driver turns off power to the wireless adapter for longer periods over more long spaced time intervals Encryption Encryption technology is used to enhance wireless media securit...

Страница 32: ...alid key length for each encryption type is as below HEX Format ASCII Format 64 Bit 10 hexadecimal digits 5 ASCII characters 128 Bit 26 hexadecimal digits 13 ASCII characters 3 From the Default Key drop down menu select one of the entered keys to encrypt the data you are going to transmit 4 From the Type drop down menu select Auto Open System or Shared System Open System If your targeted wireless ...

Страница 33: ... configuring WEP settings please note the following Your authentication type and WEP key table must be identical to those used by your target wireless network When selecting a key to transmit your outgoing data you may optionally use a key different from the target AP s or wireless client But it must be one of the defined keys ...

Страница 34: ...802 11b g Wireless LAN Card User s Manual 34 Figure 3 3 Configuration Tab ...

Страница 35: ...he short preamble This Wireless LAN Card supports the short preamble The default Short Long option allows communication with other 802 11b devices that support short preamble to boost the throughput If your device is having trouble to communicate with other 802 11b devices you may try to select the Long Only option Wireless Mode Specifies the wireless operation mode The Wireless LAN Card will scan...

Страница 36: ...ecifies whether to use 11 Mbps mode for 802 11b radio space 2 4 GHz 54 Mbps Specifies whether to use 54 Mbps mode for 802 11g radio space Note Subject to the wireless adapter type some radio space option will not be available Once the options on the Advanced page has been defined click the OK button to save the settings The Wireless LAN Monitor will take you back to the Configuration tab ...

Страница 37: ...Chapter 3 Wireless LAN Monitor Utility 37 Figure 3 4 Advanced section under Configuration Tab ...

Страница 38: ... each place you may roam Selecting a profile from the Existing Profile list can display the corresponding parameters on the bottom of this tab Figure 3 5 Profile Tab To create a new profile click the New button If you need to customize the settings for certain profile you must highlight the profile from the Existing Profile list box and click the Modify ...

Страница 39: ... following screen will appear If you are creating a new profile enter an appropriate name for the new profile in the Profile Name field For instructions on configuration please consult the previous section describing the Configuration tab Activating a Desired Profile ...

Страница 40: ...on newly established Deleting a Profile If you wish to delete an existing profile do the following 1 Make sure the profile is not currently in use If it is in use the Delete button will not be accessible 2 In the Existing Profile list box highlight the profile name and click the Delete button Site Monitor Tab Site Monitor scans the wireless network searching for available Access Points and wireles...

Страница 41: ...eceived by your Wireless LAN Card It helps you optimize the placement of your wireless station when roaming throughout the wireless network environment Network Address For an Infrastructure network it shows the MAC address of the AP For Ad Hoc network a MAC address randomly generated will be displayed Scan This button allows you to update the monitor list Connecting to Desired Site by Site Monitor...

Страница 42: ...802 11b g Wireless LAN Card User s Manual 42 Figure 3 6 Site Monitor Tab ...

Страница 43: ...ity 43 About Tab The About tab displays the basic information about the device including the Driver Application version and the MAC address of your Wireless LAN Card Click Exit button if you wish to exit the utility Figure 3 7 About Tab ...

Страница 44: ...d Whenever you start Windows you should be able to find the wireless monitor icon loaded in the system tray located near the clock on the task bar While connected you can place your cursor over the icon to see the pop up text that gives link information about the SSID and the speed ...

Страница 45: ...ake are described in the table below Color Description Excellent signal strength Your Wireless LAN Card has an excellent radio connection with the network Low signal strength The radio signal is very weak Save your profiles and move closer to the target Access Point Your Wireless LAN Card has been set to operate in Ad Hoc mode or it indicates good signal strength in Infrastructure mode Disconnect ...

Страница 46: ...t click the icon displays the menu as shown below Each item on the context menu is described as below Status Configuration Setting Profile Setting Site Monitor About Pops up the Wireless LAN Utility in its respective tab EXIT Shuts down the Wireless LAN Monitor Utility ...

Страница 47: ...indows XP Wireless Zero Configuration utility This section only provides the essential instructions on using Windows XP wireless utility to get your wireless network established For more information please refer to Windows XP on line help Connecting to an Access Point or Wireless LAN Card To connect to an existing Access Point Wireless LAN Card take out the following steps 1 Right click the Wirele...

Страница 48: ...Network window pops up you will see all the Access Points or Wireless LAN Cards that are available in the air Select the wireless network you want to connect to Figure 5 1 Windows XP Configuration Utility Connect to Wireless Network 3 If the target Access Point Wireless LAN Card has been set with WEP key you must enter the same WEP key in the Network key field Otherwise leave it blank ...

Страница 49: ...and then click Properties Go to Authentication tab first to make sure that you use the correct authentication type for the Wireless LAN Card For more information refer to Authentication on page 57 Viewing Wireless Connection Status After you successfully connect to the Access Point or Wireless LAN Card double click the icon in the system tray again This will open the Wireless Network Connection St...

Страница 50: ...s open the Wireless Network Connection Status window as described above and then click the Properties button This will open the Wireless Network Connection Properties window that allows you to configure more detailed items of the Wireless LAN Card The following describes each tab of the properties window to help you do more settings of the Wireless LAN Card ...

Страница 51: ...ed with your Wireless LAN Card The network policy depends on your wireless network For TCP IP protocol you should configure its properties as instructed by your network administrator For more information on TCP IP setting please refer to Appendix C Setting Up TCP IP on page 77 Figure 5 3 Windows XP Connection Properties General ...

Страница 52: ...networks and Preferred networks described as below Under Available networks section you can also see all the Access Points and Wireless LAN Cards available in the air Clicking Refresh will update the list of Access Points and Wireless LAN Cards Figure 5 4 Windows XP Connection Properties Wireless Networks ...

Страница 53: ...s or Wireless LAN Cards to the list After you click the Add button the Wireless Network Properties window pops up Type your network name SSID and if needed the wireless network WEP settings Once the Access Point or Wireless LAN Card that you want to connect to has been set with WEP key you must type the same WEP key as the Access Point s or Wireless LAN Card s Figure 5 5 Windows XP Add Preferred N...

Страница 54: ...tworks tab Figure 3 12 to open the Advanced window You can choose to connect to the following networks Any available network access point preferred Access point infrastructure Computer to computer Peer to Peer Group The default network type is Any available network access point preferred In this network type your device will connect to any Access Points or Wireless LAN Cards available in the air b...

Страница 55: ... most important setting for the Wireless LAN Card is to disable Enable network access control using IEEE802 1X to ensure successful connection between the Wireless LAN Cards and Access Points or other Wireless LAN Cards You must disable this function for any reason Otherwise there may be some problems happening during connection For other settings we recommend you keep the default settings to mini...

Страница 56: ... g Wireless LAN Card User s Manual 58 Figure 5 7 Windows XP Connection Properties Authentication Make sure to clear the Enable network access control using IEEE802 1X check box to ensure successful connection ...

Страница 57: ... device is still present in your laptop Even wireless software removal is performed Windows PnP capability still detects the wireless adapter and requests for its driver Therefore if you want to stop the device from working you should disable the device instead of uninstalling it The removal procedure is used in the occasion when a newer version driver is available and you want to upgrade the driv...

Страница 58: ...e Device usage section on the General tab check the Disable in this hardware profile box Click OK A red X is appended to the adapter icon to indicate that the device has been disabled For Windows 2000 XP 1 Under Control Panel click System Hardware Device Manager 2 In Device Manager window double click Network adapters to display the target wireless adapter 3 Right click the target wireless adapter...

Страница 59: ... to remove your old driver first Note Before uninstalling the Wireless LAN Card software please disable the utility by right clicking the utility tray icon and select EXIT from the context menu The icon will disappear to indicate that the utility is not in operation 1 Close all programs that are currently running 2 Click the Windows Start Programs IEEE 802 11g Wireless LAN Uninstall IEEE 802 11g W...

Страница 60: ...802 11b g Wireless LAN Card User s Manual 62 3 Click OK to proceed with the software removal procedure 4 Click Finish Subject to your Wireless LAN adapter the Windows OS may reboot to enable the changes ...

Страница 61: ...river upgrades When you have finished the download procedure please follow as below to update the device driver 1 Uninstall the Wireless LAN Card as described in Chapter 6 Follow the steps to remove the Wireless LAN Card and then uninstall the software 2 Install the new driver you have downloaded Refer to Chapter 2 for detailed instructions Once you finish installing the new driver the updating is...

Страница 62: ...ice Manager as below For Windows 98 Me Under Control Panel click System Device Manager For Windows 2000 XP Under Control Panel click System Hardware Device Manager 2 In the Device Manager window double click Network adapters to display your wireless adapter 3 Without an exclamation mark next to the wireless adapter your wireless device is working properly otherwise you will need to remove and re i...

Страница 63: ...ireless computers and the device causing the radio interference Plug the computer equipped with the Wireless LAN Card into an outlet on a different branch circuit from that used by the affecting device Consult the dealer or an experienced radio technician for help Keep the computer with the Wireless LAN Card away from the microwave oven and large metal objects when operating in 802 11b g networks ...

Страница 64: ...due to one of the following reasons Incorrect SSID Make sure the SSID is the same for all computers that have a Wireless LAN Card Your computer is not recognizing changes Restart your computer If using Ad Hoc mode make sure the Log on to Windows NT domain check box is not selected in the Client for Microsoft Networks Properties dialog box in the Network Configuration tab Incorrect IP address or su...

Страница 65: ...dy been used by another Access Point or another Ad Hoc mode wireless network nearby This helps to prevent the turbulence on the same channel Cannot Connect to an Access Point If you cannot make a connection to the Access Point it could be due to one of the following reasons Make sure the Access Point have no physical connection problems Make sure the SSID for the Wireless LAN Card is the same as t...

Страница 66: ...ting 69 The Access Point has reached its maximum number of supported clients If MAC address access control is enabled on the Access Point make sure the MAC address of your Wireless LAN Card is not among the deny access list ...

Страница 67: ...sole obligation under this express warranty shall be at the seller s option and expense to repair the defective product or part deliver to Customer an equivalent product or part to replace the defective item or if neither of the two foregoing options is reasonably available The seller may in its sole discretion refund to the Customer the purchase price paid for the defective product All products t...

Страница 68: ...to applicable seller published specifications Customer assumes responsibility for the selection of the appropriate application programs and associated reference materials The seller makes no warranty or representation that its software products will meet Customer s requirements or work in combination with any hardware or software applications products provided by third parties that the operation o...

Страница 69: ...e Wireless LAN Card is herewith confirmed to comply with the requirements of FCC Part 15 rules The operation is subject to the following two conditions 1 This device may not cause harmful interference and 2 This device must accept any interference received including interference that may cause undesired operation ...

Страница 70: ...ith the instruction manual may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try and correct the interference by one or more of the fo...

Страница 71: ...th for an uncontrolled environment End users must follow the specific operating instructions for satisfying RF exposure compliance This transmitter must not be co located or operating in conjunction with any other antenna or transmitter Information to User The users manual or instruction manual for an intentional or unintentional radiator shall caution the user that changes or modifications not ex...

Страница 72: ...eless network You should configure your TCP IP protocol as instructed by your network administrator For Windows 98 ME 1 Double click the Network icon on the Control Panel 2 Click the Configuration tab of the Network dialog box 3 In the network components list select the TCP IP protocol of your Wireless LAN Card e g TCP IP Wireless PC Card Model xxxx and then click Properties ...

Страница 73: ... Subnet Mask box enter a valid four component IP address Then select the Gateway tab and enter your gateway information Option B Select Obtain an IP address automatically Then an IP address will be automatically assigned to your computer 5 Click OK to return to Network dialog box and click OK again to finish configuration If your TCP IP properties have been modified you will be prompted to restart...

Страница 74: ...0 XP 1 Double click Network Dial up Connections Windows 2000 or Network Connections Windows XP on Control Panel 2 Right click the Local Area Connection icon corresponding to your wireless adapter e g Wireless PC Card Model xxxx and click Properties ...

Страница 75: ...tion A Use fixed IP address Enable the Use the following IP Address option Enter the IP address Subnet Mask and Default gateway Then click OK Option B Use dynamic IP address Select Obtain an IP address automatically 4 Close the Local Area Connection Properties window For Windows 2000 if prompted click Yes to restart your computer ...

Страница 76: ... Interface 32bit CardBus Mini PCI spec V1 0 Form Factor CardBus type Mini PCI type IIIB Chipset CardBus Atheros AR5212 AR5112 Mini PCI Atheros AR5212 AR2112 Network Standard IEEE 802 11b 802 11g Security Encryption Encryption AES TKIP WEP Authentication 802 1x Network Architectures Ad hoc and Infrastructure ...

Страница 77: ...ogy OFDM CCK DSSS Media Access Technique CSMA CA Supported Data Rates IEEE 802 11b g Standard Mode 1 54Mbps Antenna type Mini PCI Internal diversity with connectors CardBus Two internal diversity antennas OS Compatibility Windows 98se Me 2000 XP The current driver utility versions only support WEP encryption ...

Страница 78: ...in which devices or stations communicate directly with each other without the use of an Access Point AP Ad hoc mode is useful for establishing a network where wireless infrastructure does not exist or where wired network services are not required Ad hoc mode is also referred to as peer to peer mode or an Independent Basic Service Set IBSS Bit A bit short for binary digit is the smallest unit of da...

Страница 79: ...decrypt it Ethernet The most widely used medium access method which is defined by the IEEE 802 3 standard Ethernet is normally a shared media LAN i e all the devices on the network segment share total bandwidth Ethernet networks operate at 10Mbps using CSMA CD to run over 10BaseT cables Gateway A network component that interconnects networks with different incompatible communications protocols IEE...

Страница 80: ...which can be a server or a workstation within that network LAN Local Area Network A communication network that serves users within a defined geographical area The benefits include the sharing of Internet access files and equipment such as printers and storage devices Special network cabling such as 10BaseT is often used to connect the PCs together MAC Address The MAC Media Access Control Address i...

Страница 81: ...SSID A device will not be permitted to join the BSS unless it can provide the unique SSID An SSID is also referred to as a Network Name because essentially it is a name that identifies a wireless network Subnet Mask A value that defines whether your computer communicates only within your LAN or communicates outside of your LAN where it is routed out to the rest of the Internet A Subnet Mask that h...

Страница 82: ... by their structure having some or all part of the network inside a building protected from unauthorized access WLANs which are over radio waves do not have the same physical structure and therefore are more vulnerable to tampering WEP aims to provide security by encrypting data over radio waves so that it is protected as it is transmitted from one end point to another WLAN Wireless Local Area Net...

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