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A wireless infrastructure can be used for access to a central database, or for
connection between mobile workers, as shown in the following figure.

I

NFRASTRUCTURE

W

IRELESS

LAN

FOR

R

OAMING

W

IRELESS

PC

S

The Basic Service Set (BSS) is the communications domain for each access point.
For wireless PCs that do not need to support roaming, set the domain identifier
(SSID) for the wireless card to the SSID of the access point to which you want
to connect. A wireless infrastructure can also support roaming for mobile
workers. More than one access point can be configured to create an Extended
Service Set (ESS). By placing the access points so that a continuous coverage area
is created, wireless users within this ESS can roam freely.

File

Server

Switch

Desktop PC

Access Point

Wired LAN Extension

to Wireless Adapters

PC with Wireless
PCI Adapter

Notebook with Wireless
PC Card Adapter

File

Server

Switch

Desktop PC

Access Point

<BSS2>

Notebook with Wireless
PC Card Adapter

Seamless Roaming

<ESS>

Switch

Access Point

<BSS1>

PC with Wireless
PCI Adapter

Notebook with Wireless
PC Card Adapter

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Содержание WL-463

Страница 1: ...m http www 3com com support en_US productreg frontpg User Guide Wireless LAN Access Points 8250 8750 8850 3CRWE825075A 3CRWE875075A 3CRWE885075A Models WL 450 WL 463 WL 464 Part No DUA82507 5AAA01 Published April 2005 ...

Страница 2: ...copy will be provided to you UNITED STATES GOVERNMENT LEGEND If you are a United States government agency then this documentation and the software described herein are provided to you subject to the following All technical data and computer software are commercial in nature and developed solely at private expense Software is delivered as Commercial Computer Software as defined in DFARS 252 227 701...

Страница 3: ...AN for Roaming Wireless PCs 8 Advanced Network Configuration and Planning 9 Public Private Access Point Service 9 Remote Building Wireless Access with the AP8850 9 Remote Building Wireless Access with the AP8250 and 802 11g Upgrade Kit 11 Terminology 13 2 Installing the Access Point Installation Requirements 15 Power Requirements 16 Safety Information 16 Deciding Where to Place Equipment and Perfo...

Страница 4: ...Wizard 31 Configuration Login 31 Setting the Country Code 31 Basic Setup 32 Advanced Setup 33 Identification 33 TCP IP Settings 33 DHCP Client 33 Web Servers 34 Smart Monitor 34 RADIUS 35 Authentication 37 Filter Control 40 Filtering by VLAN 40 Enabling VLAN Filtering 40 Security Filters 41 Client List Timeout 41 Uplink Port MAC Address Filtering 41 Filtering by Ethernet Protocol Type 42 SNMP 43 T...

Страница 5: ...ling Virtual Access Point VAP 54 Changing Radio Settings 56 Security 58 Selecting a Virtual Access Point VAP 58 Configuring Authentication 58 Configuring Encryption 58 WPA Configuration 59 WEP Configuration 60 How to setup the access point for RADIUS authentication 61 How to setup the access point for WPA with 802 1x Session keys 62 How to setup the access point for WPA with Pre Shared PSK Key 63 ...

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Страница 7: ...r providing wireless network access in remote buildings With their flexibility and unfettered access wireless LANs are changing the way people work Now with 3Com s enterprise class wireless access points you can build a cost effective reliable secure wireless network that provides users with seamless connectivity to the Internet company intranet and the wired corporate network from anywhere they h...

Страница 8: ... enterprise class access point in an 802 11g and an 802 11a WDS bridge SECURITY 3Com offers one of the most robust suite of standards based security on the market today To protect sensitive data broadcast over the wireless LAN 3Com supports the Advanced Encryption Standard AES 3Com strengthens this basic security mechanism with additional security features including MAC address access control list...

Страница 9: ...al G Radio Support Dual G Radio support allows you to install two 802 11g radios in the same device providing local access point service on one radio and a full bandwidth WDS bridge on the other radio This configuration is ideal for providing wireless network access in remote buildings Virtual Access Point VAP Support Virtual Access Point VAP support allows an access point radio to operate as two ...

Страница 10: ...inconvenience that may hinder wire installations A WDS link can be used in a simple point to point link a complex point to multipoint link or a multilayer topology Point to Point WDS Link The following example shows a point to point WDS link configured between two access points Point to Multipoint WDS Link The following example shows point to multipoint WDS links configured between multiple access...

Страница 11: ...to simplify bulk updates With Power over Ethernet PoE support the same Category 5 cable that connects your access point to the data network also provides its power A single cable installation dramatically improves your choice of mounting configurations because you no longer need to consider AC power outlet locations PoE support makes it easier than ever to overcome installation problems with diffi...

Страница 12: ...it is at an entirely different radio spectrum it is not compatible with 802 11g The higher spectrum provides about 50 meters 164 feet of coverage about half what 802 11g offers Consider 802 11a when you need high throughput in a confined space and you are Running high bandwidth applications like voice video or multimedia over a wireless network that can benefit from a fivefold increase in data thr...

Страница 13: ...for a branch office or SOHO operation INFRASTRUCTURE WIRELESS LAN The access point can also provide access to a wired LAN for wireless workstations An integrated wired wireless LAN is called an infrastructure configuration A Basic Service Set BSS consists of a group of wireless PC users and an access point that is directly connected to the wired LAN Each wireless PC in this BSS can talk to any com...

Страница 14: ... connect A wireless infrastructure can also support roaming for mobile workers More than one access point can be configured to create an Extended Service Set ESS By placing the access points so that a continuous coverage area is created wireless users within this ESS can roam freely File Server Switch Desktop PC Access Point Wired LAN Extension to Wireless Adapters PC with Wireless PCI Adapter Not...

Страница 15: ...cess Point is configured to support one SSID that is broadcast with no security The second Virtual Access Point is configured with a different private SSID that is not broadcast The private SSID should be assigned to a separate VLAN and use 802 1x authentication with either TKIP or AES encryption to a RADIUS server REMOTE BUILDING WIRELESS ACCESS WITH THE AP8850 This installation scenario describe...

Страница 16: ...75A Ultra Low Loss Cable 3CWE580 or 3CWE581 or 3CWE582 6 8 Dual Band Omnidirectional Antenna 3CWE591 Each Remote Location Child Bridge 802 11a g Bridging Access Point 3CRWE885075A Ultra Low Loss Cable 3CWE580 or 3CWE581 or 3CWE582 8 10 dBi Dual Band Panel Antenna 3CWE598 or one 18 20 dBi Dual Band Panel Antenna 3CWE596 Child Bridge 1 Child Bridge 2 Root Bridge TM TM TM TM TM Note For instructions ...

Страница 17: ...ntenna The remote bridges are configured as Child Bridges and use an 8 dBi directional antenna 3CWE495 which is aimed at the Root Bridge Because the WDS radio and the local access point radio are operating in approximately the same frequency range the following guidelines must be followed for successful installation The WDS link should be configured on Channel 2 or Channel 10 The access point radi...

Страница 18: ...WE825075A or 3CRWE725075A Ultra Low Loss Cable 3CWE580 or 3CWE581 or 3CWE582 8 dBi Omnidirectional Antenna 3CWE491 Each Remote Location Child Bridge AP8250 3CRWE825075A 802 11g Upgrade Kit 3CRWEGMOD75A Ultra Low Loss Cable 3CWE580 or 3CWE581 or 3CWE582 8 dBi Panel Antenna 3CWE498 or 13 dBi Panel Antenna 3CWE495 ...

Страница 19: ...CSMA CA Carrier Sense Multiple Access with Collision Avoidance EAP Extensible Authentication Protocol which provides a generalized framework for several different authentication methods ESS Extended Service Set More than one BSS is configured to become an ESS LAN mobile users can roam between different BSSs in an ESS ESS ID SSID Ethernet A popular local area data communications network which accep...

Страница 20: ...s of hosts that are on physically different segments but that communicate as though they were on the same segment WEP Wired Equivalent Privacy is based on the use of security keys and the popular RC4 encryption algorithm Wireless devices without a valid WEP key will be excluded from network traffic WDS Wireless Distribution System WPA Wi Fi Protected Access ...

Страница 21: ...c anchors for drywall mounting If you do not have IEEE 802 3af power over Ethernet LAN equipment use the 3Com Integrated Power over Ethernet power supply that comes with the access point If your LAN equipment complies with the IEEE 802 3af power over Ethernet standard you can connect directly to the equipment and the 3Com power supply is not needed Standard category 5 straight 8 wire Ethernet cabl...

Страница 22: ...this document refer to equipment that meets these requirements Because the power supply plug is the only means of disconnecting the access point from power make sure the power outlet is accessible See Using the Power Supply on page 21 and Using a Power Over Ethernet LAN Port on page 21 SAFETY INFORMATION This equipment must be installed in compliance with local and national building codes regulato...

Страница 23: ...int provides coverage at distances of up to 100 Meters 300 Feet Signal loss can occur if metal concrete brick walls floors or other architectural barriers block transmission If your location includes these kinds of obstructions you may need to add additional access points to improve coverage CAUTION To avoid possible injury or damage to equipment you must use either the provided power supply or IE...

Страница 24: ...enna Model on page 25 before selecting the final location and be sure to allow for routing the antenna cable as required For optimal performance ensure the access point operates in temperature ranges between 0 C to 40 C 14 F to 104 F BEFORE YOU BEGIN Record the access point MAC address in a safe place before the access point is installed in a hard to reach location The MAC address is printed on th...

Страница 25: ...0 Position the antennas so they turn out and away from the access point at a 45 degree angle After network startup you may need to adjust the antennas to fine tune coverage in your area Depending on the coverage required for your site you may want to replace the standard detachable antennas with one of the external antennas available for use with the access point See Selecting and Connecting a Dif...

Страница 26: ... Integrated Power over Ethernet power supply In this case you need to supply a second Ethernet cable to connect to the wired LAN Connect the access point directly to your own power over Ethernet hub or switch which must also comply with the IEEE 802 3af standard If you supply your own Ethernet cable for connecting power be sure that it is standard category 5 straight through 8 wire cable that has ...

Страница 27: ...To Access Point on the power supply 3 Connect the power cord to the power supply and plug the cord into a power outlet 4 To link the access point to your Ethernet network plug one end of another Ethernet cable into the port labeled To Hub Switch on the power supply and plug the other end into a LAN port on a hub or in a wall USING A POWER OVER ETHERNET LAN PORT If your LAN equipment complies with ...

Страница 28: ...links red to indicate radio activity Faster blinking indicates more activity Power LED lights green when operational code is running Reset Button Press this button and hold for 15 seconds to restore the factory defaults Ethern et LED lights yellow when Ethernet link is established LED blinks to indicate activity on the Ethernet Faster blinking indicates more activity Radio LED blinks red to indica...

Страница 29: ...unting plate as a template for vertical alignment as shown at right in the illustration above Use a 5 mm 3 16 in drill bit if using the plastic anchors provided For drywall mounts you can route the cable through either a side or center opening for a seamless appearance using one of the methods illustrated below Alternatively you can simply attach the Ethernet cable to the side of the unit allowing...

Страница 30: ...you choose a flat surface mount select a location that is clear of obstructions and provides good reception Hold the access point at an angle Turn clockwise to engage and secure it on the mounting plate Leave at least 13 cm 5 in length Ethernet cable may be routed through center opening or through the side Center opening Side opening Hook for securing the cable Connect Ethernet cable Rotate for be...

Страница 31: ...ector on the antenna To ensure the physical safety of anyone near the antenna and to prevent damage to the access point follow the building codes for antenna installations in your area Use the antenna port that is closest to the LEDs 1 Position the antenna so that there are minimal obstacles between it and any client with which it will communicate While maintaining a direct line of sight between t...

Страница 32: ...ning arrestor POWER SETTINGS ON THE EXTERNAL ANTENNAS The following tables describe the power settings for the 802 11g radio on the AP8250 and AP8750 USA European Community Note The power settings for the 802 11a radio on the AP8850 were unavailable at the time of publication Please check the 3Com web site or the Release Notes included with the access point for the appropriate power levels 2 5dBi ...

Страница 33: ...isor Click on this link to download the 3Com Network Supervisor 3NS The 3Com 3NS graphically discovers maps and displays network links and IP devices including 3Com wireless access points It is not required for access point management 3Com Site Survey Tool This utility assists in selecting the best location for your access point before installing the device permanently Use the Site Survey Tool to ...

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Страница 35: ...stalled ensure that the device to be configured is either wired to the network associating with the wireless network or connected directly to the computer and connected to power If more than one device using the factory default name is connected make a note of the MAC address of the device you want to select so that you can identify it in the device manager LAUNCHING A WIRELESS DEVICE CONFIGURATIO...

Страница 36: ...e will then reside on the same subnet as your computer You can accept the suggested settings or change them as required For more information see Using the Pre IP Configuration Wizard on page 31 The next window prompts for an administrative password to allow the new IP address to be set When the units are shipped from the factory there is no administration password and you should leave the password...

Страница 37: ...should leave the password field blank If an administration password has been set for the device enter the password and click Next The Configuration Management System main page appears in the Web browser CONFIGURATION LOGIN After you launch the configuration from the device manager the login page appears in your browser The default username is admin The default password is no password For an initia...

Страница 38: ...the access point to operate with a data rate of up to 108 Mbps If Turbo Mode is not allowed in your country this option is not available 802 11a Radio Channel Set the operating radio channel number Auto Channel Select When this mode is enabled the access point selects a radio channel automatically 802 11g You can select from these options Turbo Mode In some countries you can use Turbo Mode If Turb...

Страница 39: ...ration Protocol Client is enabled and a DHCP server is located on the network the network DHCP server assigns the IP address subnet mask and default gateway to the access point If there is no DHCP server on the network the access point automatically uses its default IP address 169 254 2 1 When DHCP Client is disabled you can specify the IP setup as follows IP Address and Subnet Mask If you configu...

Страница 40: ...in the browser window address pane for example http ipaddress portnumber This number can be set between 1024 and 65535 HTTPS Server Enable or disable the HTTPS protocol allowing connection to the access point management interface using encrypted HTTPS HTTPS Port If HTTPS Server is enabled enter the HTTPS port number This parameter determines the port number where the web server accepts HTTPS conne...

Страница 41: ...ice is a login authentication protocol that uses software running on a central AAA Access Authentication and Accounting server to control access to RADIUS compliant devices on the network There are no special settings on the access point to distinguish between the various RADIUS policies or authentication types for example EAP MD5 EAP TLS EAP TTLS These policies are setup and controlled on the AAA...

Страница 42: ...igured the same on both the access point and the RADIUS server The Authentication and Accounting RADIUS servers can have different secret keys Timeout The number of seconds the access point waits for a reply from the RADIUS server before it resends the request Retransmit attempts The number of times the access point will try to authenticate logon access RADIUS Servers Assign Client VLAN ID in Sele...

Страница 43: ...the local access control list You must build this list called the MAC Authentication Table as described in Local MAC Authentication below Use this option if you want to restrict wireless clients authentication to the access point based off their MAC address RADIUS MAC With this option the MAC address of the associating station is sent to the configured RADIUS server for validation You must specify...

Страница 44: ...nt with the ability to authenticate itself to an 802 1x enabled switch port In an environment where network access is controlled via 802 1x the supplicant makes it possible for the access point to connect to the wired network The access point assumes the 802 1x authenticator role if configured properly after the supplicant has completed The supplicant authentication method supported is EAP MD5 Ena...

Страница 45: ... control You can find the MAC address of a network card as follows Windows 95 98 ME Click Start Run Type winipcfg and press Enter The MAC address is in the Adapter Address section Windows NT4 2000 XP At the command prompt type ipconfig all and press Enter The MAC address is listed as the Physical Address Linux Run the command sbin ipconfig The card s MAC address is the value after the word HWaddr ...

Страница 46: ...sed to create modify the VLAN ID the following attributes must be provisioned on the RADIUS Server to be passed back to the authenticating client The AP s IP address is the RADIUS Client Radius User Tunnel_type 64 VLAN 13 Tunnel_Medium_type 65 802 Tunnel_Private_group_ID 81 VLAN ID specified in Hexadecimal format VLAN Switch ports must be tagged ports that match the VLAN ID on the Access Point Ass...

Страница 47: ...ver this feature should be disabled Local Bridge Filter Enable this filter to prevent direct communication between wireless clients creating a more secure wireless network AP Management Filter Enable this filter to prevent wireless clients from accessing the access point for management for example through TELNET or SNMP CLIENT LIST TIMEOUT This option sets the timeout for inactive clients to be di...

Страница 48: ... sub net If an AP is located on the far side of the gateway i e on a different sub net its clients will NOT be blocked from communicating with clients on the local sub net of interest This feature is accessed on the Filter Page of the user interface Click Enabled next to the Uplink Port MAC Address Filtering link and add up to eight MAC addresses that WILL be allowed to communicate with clients of...

Страница 49: ...bes the system location Maximum length 255 characters Community Name Read Only Specifies a community string with read only access Authorized management stations are able to retrieve MIB objects Maximum length 23 characters Community Name Read Write Specifies a community string with read write access Authorized management stations are able to both retrieve and modify MIB objects Maximum length 23 c...

Страница 50: ...point is about to reboot sysRadiusServerChanged Sent when the RADIUS server has changed from Primary to Secondary or Secondary to Primary dot11StationAssociation Sent when a station successfully associates with the access point The trap also includes the MAC address of the station that has associated dot11StationReAssociation Sent when a station successfully reassociates with the access point The ...

Страница 51: ...failed to authenticate dot1xAuthNotInitiated Sent when a station did not initiate 802 1x authentication with the RADIUS server The trap also includes the MAC address of the station that failed to authenticate dot1xAuthSuccess Sent when a station successfully authenticates with the RADIUS server The trap also includes the MAC address of the station that has authenticated localMacAddrAuthSuccess Sen...

Страница 52: ...ws the users to have different access rights Auth Type The SNMP v3 authentication protocol Passphrase The SNMP v3 authentication password Priv Type The SNMP v3 privacy protocol Passphrase The SNMP v3 privacy password Action Click Add to add the SNMP v3 user click Delete to remove the SNMP v3 user GROUPS GroupName Enter a name for the group SecurityLevel Select a security level noAuthNoPriv The gro...

Страница 53: ...on Click Add to add an entry click Delete to remove an entry SNMP FILTER This table is used to set filter profiles Filter profiles are used to determine if particular management targets should receive certain notifications Filter ID The name used to identify the filter Filter Type Indicates whether or not the family of filter subtrees that are defined by this entry are included in or excluded from...

Страница 54: ...cess point accepts SSH connections The default port number is 22 Enter a value between 1024 and 65535 Firmware Upgrade You can upgrade firmware from a remote FTP or TFTP server Select FTP or TFTP Enter the firmware file name the host IP address where the file is stored the user name and the password Click Start Upgrade to start the upgrade process Backup and Restore Configurations Access point con...

Страница 55: ...ot the access point All user configured information is lost You must reenter the default user name admin to regain management access to this device Reset Access Point Click Reset to perform a hardware reset of the access point Current configuration settings are not changed WDS STP SETTINGS The WDS STP Settings page allows you to configure a Wireless Distribution System WDS link to connect 3Com acc...

Страница 56: ... forwards data to the Distribution System The access point can also have bridge children for which it acts as the bridge parent and helps to send data to the DS Root Bridge The access point behaves as the parent of all connected WDS access points The Root Bridge has no bridge parents Its Ethernet port is connected to the backbone of the wired LAN BRIDGE ADDRESS ENTRY When operating in AP mode brid...

Страница 57: ...ROTOCOL SETTINGS Spanning Tree Protocol allows the access point to determine the most efficient path to forward data It also allows network administrators to set up redundancy in the network while avoiding problems associated with network loops This is primarily useful in a WDS environment Configure all parameters within the value ranges displayed Bridge Select Enable to turn on the STP feature Dy...

Страница 58: ...t up a server to store event logs and to specify how the access point obtains the date and time When you are finished configuring items on this page click Apply Each logging message is tagged with a severity level as defined in RFC3164 The severity levels are Emergency system is unusable Alert action must be taken immediately Critical critical conditions Error error conditions Warning warning cond...

Страница 59: ... Click Stations Status to view the configurations of connected stations The Station Status page displays basic connection information for all associated stations Select refresh on you browser to see update station status Event Logs Click Event Logs to display the activity log of the access point The event log resets to zero if the access point is reset The log saves 128 events then overwrites the ...

Страница 60: ...access point radio interface detects the number of radios installed and their type 802 11g Radio 802 11a Radio or 802 11b Radio The Radio Settings and Security options for the radio interface are described in the following sections RADIO SETTINGS The Radio Settings page allows you to setup standard settings for each radio It also allows you to enable Virtual Access Point VAP service and configure ...

Страница 61: ...ue is ignored Note If clients have VLAN IDs assigned by a RADIUS server the RADIUS assigned VLAN ID takes precedence over the VLAN ID configured here Closed System Enabling this option prevents publicly broadcasting the SSID Maximum Associations Setting this option limits the number of wireless stations that can associate to the SSID Integer values between 1 and 64 are accepted Authentication Time...

Страница 62: ...nd 802 11a only Select Auto Channel Select Enable to allow the access point to select a radio channel automatically Radio Channel From the pull down list select the radio channel over which the access point communicates to computers in its BSS Available channel settings are limited by local regulations that determine which channels are allowed The client channel for wireless users is automatically...

Страница 63: ...re in power saving mode that a packet is waiting for them Fragment Length 256 2346 802 11g and 802 11a only The Fragment Length can be set between 256 and 2 346 If the packet size is smaller than the preset fragment size the packet will not be segmented Fragmentation of the PDUs Package Data Unit can increase the reliability of transmissions because it increases the probability of a successful tra...

Страница 64: ...below When you are finished configuring items on this page click Apply SELECTING A VIRTUAL ACCESS POINT VAP Open the Virtual AP drop down box and select the VAP you want to configure Each VAP has its own set of security parameters except for the WEP key table which is shared between two VAPs CONFIGURING AUTHENTICATION The following types of authentication can be configured Open System the default ...

Страница 65: ...EP selected as the Cipher Mode ALL multicast traffic is sent out with WEP encryption It is recommended to only select WEP as the Cipher Mode if legacy client support is critical AES Advanced Encryption Standard Highest Security TKIP Temporal Key Integrity Protocol provides per packet key mixing a message integrity check and a re keying mechanism WEP Provides standard WEP ciphering Least Secure 3 S...

Страница 66: ...02 1x then the 802 1x Wireless Setup must be set to Supported on the Authentication Page instead WEP Configuration WEP encryption is based on the use of security keys and the popular RC4 encryption algorithm At least one transmit key must be defined in the WEP Configuration Wireless devices without a valid WEP key will be excluded from network traffic The key selected as the transmit key index is ...

Страница 67: ...elect Advanced Setup 4 Click on RADIUS from the left frame page Menu 5 Enter all the settings of your Primary RADIUS Authentication Server make sure the IP Address and Key match those on the RADIUS Authentication software 6 Click on Apply 7 Choose Authentication from the left frame page Menu 8 Make sure the following settings are set on the Authentication page a MAC Authentication is Disabled if L...

Страница 68: ...atch those on the RADIUS Authentication software 6 Click on Apply 7 Choose Authentication from the left frame page Menu 8 Make sure the following settings are set on the Authentication page a MAC Authentication is Disabled if Local or RADIUS MAC Authentication is chosen MAC address filtering or authentication respectively will be done before the 802 1x authentication Therefore these setups must be...

Страница 69: ...n is Disabled if Local or RADIUS MAC Authentication is chosen MAC address filtering or authentication respectively will be done before the 802 1x authentication Therefore these setups must be validated individually and verified functional before 802 1x can be done b 802 1x Wireless Setup is set to Disabled or Optional if RADIUS clients need access too c Click on Apply 6 Click Security on the 802 1...

Страница 70: ...equired The Windows XP Support Patch for Wireless Protected Access which you can download from the Microsoft Web site is required To allow WEP clients clear the WPA Configuration Required check box and enter an appropriate WEP key For all WPA configurations 802 1x must be enabled on the Authentication page Windows XP Wireless Zero Configuration Access Points 8250 8750 Authentication Encryption Aut...

Страница 71: ... 8750 Enable WPA Configuration Required Multicast Cipher Mode AES WPA Key Management WPA 802 1x TKIP Open System Enable WPA Configuration Required Multicast Cipher Mode TKIP WPA Key Management WPA PSK Select Key Type and enter Pre Shared Key WEP Open System Enable WPA Configuration Required Multicast Cipher Mode WEP WPA Key Management WPA PSK Select Key Type and enter Pre Shared Key Windows XP Wir...

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Страница 73: ... subnet as the wired LAN If necessary reset the access point to the factory defaults Try the solutions in the following table If you need further assistance contact 3Com Technical Support through the following Web page http www 3com com products en_US supportedindex jsp Symptom Solutions Access point does not power up Make sure the Ethernet cable is plugged into the port labeled To Access Point on...

Страница 74: ...sers can roam are configured to the same WEP setting SSID and authentication settings Slow or erratic performance Try changing the wireless channel on the access point Check the access point antennas connectors and cabling for loose connections Check the wired network topology and configuration for malfunctions Running on a computer connected to the wired LAN the 3Com Device Manager cannot find an...

Страница 75: ...ervice area to match If you change the IP address and save the change you cannot continue to configure the access point using the old IP address Therefore if you want to continue configuring this access point after you save this change you must do the following 1 Close your browser 2 Return to the 3Com Device Manager Wireless Network Tree and click Refresh 3 Select the access point and click Confi...

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Страница 77: ...evice must not be co located or operated in conjunction with any other antenna or transmitter except the 3Com 802 11a Wireless LAN Access Point Upgrade Kit US Federal Communications Commission FCC EMC Compliance This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protect...

Страница 78: ...echnical specifications were met To reduce potential radio interference to other users the antenna type and its gain should be so chosen that the equivalent isotropically radiated power EIRP is not more than that required for successful communication To prevent radio interference to the licensed service this device is intended to be operated indoors and away from windows to provide maximum shieldi...

Страница 79: ...oestel RLAN device in overeenstemming is met de essentiële eisen en de andere relevante bepalingen van richtlijn 1999 5 EG Bij deze verklaart 3Com Corporation dat deze RLAN device voldoet aan de essentiële eisen en aan de overige relevante bepalingen van Richtlijn 1999 5 EC French Par la présente 3Com Corporation déclare que l appareil RLAN device est conforme aux exigences essentielles et aux aut...

Страница 80: ...tabilite dalla direttiva 1999 5 CE Spanish Por medio de la presente 3Com Corporation declara que el RLAN device cumple con los requisitos esenciales y cualesquiera otras disposiciones aplicables o exigibles de la Directiva 1999 5 CE Portuguese 3Com Corporation declara que este RLAN device está conforme com os requisitos essenciais e outras disposições da Directiva 1999 5 CE Malti Estonian Käesolev...

Страница 81: ... the 2 4GHz band Channels 1 13 except where noted below In Italy the end user must apply for a license from the national spectrum authority to operate this device outdoors In Belgium outdoor operation is only permitted using the 2 46 2 4835 GHz band Channel 13 In France outdoor operation is only permitted using the 2 4 2 454 GHz band Channels 1 7 Brazil RF Compliance Este equipamento opera em car ...

Страница 82: ...oor use only when using channels 36 40 44 or 48 in the 5 15 to 5 25 GHz frequency range High power radars are allocated as primary users of the 5 25 to 5 35 GHz and 5 65 to 5 85 GHz bands These radar stations can cause interference with and or damage this device US Federal Communications Commission FCC EMC Compliance This equipment has been tested and found to comply with the limits for a Class B ...

Страница 83: ...the antenna type and its gain should be so chosen that the equivalent isotropically radiated power EIRP is not more than that required for successful communication To prevent radio interference to the licensed service this device is intended to be operated indoors and away from windows to provide maximum shielding Equipment or its transmit antenna that is installed outdoors is subject to licensing...

Страница 84: ...toestel RLAN device in overeenstemming is met de essentiële eisen en de andere relevante bepalingen van richtlijn 1999 5 EG Bij deze verklaart 3Com Corporation dat deze RLAN device voldoet aan de essentiële eisen en aan de overige relevante bepalingen van Richtlijn 1999 5 EC French Par la présente 3Com Corporation déclare que l appareil RLAN device est conforme aux exigences essentielles et aux au...

Страница 85: ...tabilite dalla direttiva 1999 5 CE Spanish Por medio de la presente 3Com Corporation declara que el RLAN device cumple con los requisitos esenciales y cualesquiera otras disposiciones aplicables o exigibles de la Directiva 1999 5 CE Portuguese 3Com Corporation declara que este RLAN device está conforme com os requisitos essenciais e outras disposições da Directiva 1999 5 CE Malti Estonian Käesolev...

Страница 86: ...point at that location and consult the local technical support staff responsible for the wireless network The 5GHz Turbo mode feature is not allowed for operation in any European Community country This device must be used with the radar detection feature required for European Community operation in the 5GHz bands This device will avoid operating on a channel occupied by any radar system in the are...

Страница 87: ...ndoor use only when using channels 36 40 44 or 48 in the 5 15 to 5 25 GHz frequency range High power radars are allocated as primary users of the 5 25 to 5 35 GHz and 5 65 to 5 85 GHz bands These radar stations can cause interference with and or damage this device US Federal Communications Commission FCC EMC Compliance This equipment has been tested and found to comply with the limits for a Class ...

Страница 88: ...antenna type and its gain should be so chosen that the equivalent isotropically radiated power EIRP is not more than that required for successful communication To prevent radio interference to the licensed service this device is intended to be operated indoors and away from windows to provide maximum shielding Equipment or its transmit antenna that is installed outdoors is subject to licensing Pou...

Страница 89: ...liance Este equipamento opera em car ter secund rio isto È nao tem direito a proteÁao contra interferencia prejudicial mesmo de estaÁoes do mesmo tipo e nao causar interferencia a sistema operando em car ter prim rio ...

Страница 90: ......

Страница 91: ...MAC 39 MAC 37 open system 58 RADIUS MAC 38 shared key 58 automatic channel selection 56 B backup configuration 48 basic configuration 32 beacon interval 57 broadcast key refresh rate 38 C cable 15 change password 48 channel 56 choosing a NIC 30 community name 43 configuration 29 advanced 33 basic 32 login 31 Configuration Management System 30 31 configuration backup and restore 48 Configure button...

Страница 92: ...ress 39 location configuration parameter 43 for installation 17 log 52 login 31 M MAC address locating 39 recording 18 use in locating devices 29 30 MAC authentication 37 management VLAN ID 40 maximum station data rate 57 mounting on a wall 22 plate 23 N network configuration and planning 7 NIC choosing 30 O open system 58 P passphrase 61 password 48 planning a network 7 power 16 connecting 20 req...

Страница 93: ...NMP 43 software utilities installing 27 SSID 53 55 stations status 53 statistics accounting 36 status 53 subnet mask 33 system configuration 29 system log 52 T TCP IP settings 33 terminology 9 time and date settings 52 53 transmission power 56 trap destination 43 troubleshooting 67 turbo mode 56 U upgrading firmware 48 V VLAN 40 VLAN ID 40 W wall mount installation 22 web server secure connection ...

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