3Com 3CRWE825075A-US User Guide

3Com 3CRWE825075A-US - Wireless LAN Access Point 8250 Manual

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  • 3Com 3CRWE825075A-US | User Guide - Page 1
    Wireless LAN Access Points 8250/8500/8750 3CRWE825075A 3CRWE850075A 3CRWE875075A (Models WL-450, WL-462, WL-463) Version 2 User Guide http://www.3com.com/ http://www.3com.com/support/en_US/productreg/frontpg.html/ Published January, 2004 Version 2.3.12
  • 3Com 3CRWE825075A-US | User Guide - Page 2
    to you in conjunction with, this User Guide. Unless otherwise indicated, 3Com registered trademarks are registered in the United States and may or may not be registered in other countries. 3Com, the 3Com logo, and SuperStack are registered trademarks of 3Com Corporation. Wi-Fi is a trademark of the
  • 3Com 3CRWE825075A-US | User Guide - Page 3
    Contents Introduction Product Features 6 Security 7 Performance and Reliability 7 Manageability 7 Wireless Network Standards 8 Far-Reaching 802.11g 8 High-Performance 802.11a 8 Network Configuration and Planning 9 Ad Hoc Wireless LAN 9 Infrastructure Wireless LAN 9 Infrastructure Wireless LAN for
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    2 System Configuration Using the 3Com Wireless Device Manager 26 Launching a Wireless Device Configuration 26 Using the Pre-IP Configuration Wizard 28 Configuration Login 28 Setting the Country Code 28 Basic
  • 3Com 3CRWE825075A-US | User Guide - Page 5
    3 Troubleshooting A Technical Support Obtaining Support for your Product 54 Register Your Product to Gain Service Benefits 54 Purchase Value-Added Services 54 Where To Go For Help 54 Troubleshoot Online 54 Access Software Downloads 55 Contact Us 55 Telephone Technical Support and Repair 55
  • 3Com 3CRWE825075A-US | User Guide - Page 6
    that provides users with seamless connectivity to the Internet, company intranet, and the wired corporate network from anywhere they happen to be-conference room, cafeteria or office. 3Com's dual-mode design supports 802.11g, 802.11a and 802.11b wireless standards on a single access point. This
  • 3Com 3CRWE825075A-US | User Guide - Page 7
    o Access Point 8750-Creates a high-performance enterprise-class dual-mode 802.11g and 802.11a wireless LAN supporting up to 250 simultaneous users up to 100 meters (328 feet). SECURITY 3Com offers one of the most robust suite of standards-based security on the market today. To protect sensitive data
  • 3Com 3CRWE825075A-US | User Guide - Page 8
    consider AC power outlet locations. PoE support makes it easier than ever to overcome installation problems with difficult-to-wire or hard .11g operates in the 2.4 GHz band at up to 54Mbps. Ratified in 2003, it supports the widest coverage-up to 100 meters (328 feet). However, is subject to a greater
  • 3Com 3CRWE825075A-US | User Guide - Page 9
    a tighter space. NETWORK CONFIGURATION AND PLANNING The wireless solution supports a stand-alone wireless network configuration as well as an . 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
  • 3Com 3CRWE825075A-US | User Guide - Page 10
    Desktop PC File Server Wired LAN Extension to Wireless Adapters Switch Notebook with Wireless PC Card Adapter Access Point PC with 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
  • 3Com 3CRWE825075A-US | User Guide - Page 11
    Desktop PC Switch File Server Switch Notebook with Wireless PC Card Adapter Notebook with Wireless PC Card own base station; each base station in turn is interconnected with other cells' bases. BSS-Basic Service Set. It is an access point and all the LAN PCs that are associated with it. CSMA
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    ESS-Extended Service Set. More than one BSS is configured to become an ESS. LAN mobile medium may not be aware of each other (they are "hidden nodes"). The RTS/CTS mechanism can solve this problem. If the packet size is smaller than the preset RTS Threshold size, the RTS/CTS mechanism will not be
  • 3Com 3CRWE825075A-US | User Guide - Page 13
    reach the power supply or the power-over-Ethernet LAN port. If you use the 3Com power supply, you need an additional Ethernet cable to connect the access point to the operating systems: Windows 98, Windows ME, Windows NT 4.0 Service Pack 6, Windows 2000, or Windows XP. It is recommended that this computer
  • 3Com 3CRWE825075A-US | User Guide - Page 14
    Using a Power-Over-Ethernet LAN Port" on page 19. Note for use of the 3Com power supply (part number 61-0107-000) in Norway: This product is also designed in this document refer to equipment meeting these requirements. CAUTION: The 3Com power supply (part number 61-0107-000) input relies on a 16A
  • 3Com 3CRWE825075A-US | User Guide - Page 15
    equipment, electric shock, or fire. Refer to the installation instructions for proper installation DECIDING WHERE TO PLACE EQUIPMENT AND PERFORMING coverage Configuring a wireless LAN can be as easy as placing a 3Com Wireless Access Point in a central area and making the necessary connections to
  • 3Com 3CRWE825075A-US | User Guide - Page 16
    Regulatory restrictions dictate that when this device is operational, the minimal body-to-antenna distance is 1 Meter (3 Feet). 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 the
  • 3Com 3CRWE825075A-US | User Guide - Page 17
    standard. It receives power over a standard category 5 straight (8-wire) Ethernet cable. There are two ways to supply power to the access point: o Use the 3Com Integrated Power-over-Ethernet power supply. In this case, you need to supply a second Ethernet cable to connect to the wired LAN. 17
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    (8-wire) cable that has not been altered in any way. Use of nonstandard cable could damage the access point. "To Access Point" "To Hub/Switch" Using the Power Supply USING THE POWER SUPPLY Using A Power-over-Ethernet LAN Port CAUTION: To avoid damaging network equipment, make sure that the
  • 3Com 3CRWE825075A-US | User Guide - Page 19
    , you can connect the access point directly to a LAN port. For example, the illustration above right shows a connection through a 3Com Ethernet Power Supply to a 3Com SuperStack® Switch. CHECKING THE LEDS When power is connected, the access point LEDs light. The illustration and the following table
  • 3Com 3CRWE825075A-US | User Guide - Page 20
    1 Install the mounting plate as shown in the following illustration, on either a stud (or other hard wall surface), or onto drywall. If installing into a stud or other secure vertical surface, use 2 screws. If installing into drywall, use 3 plastic anchors and 3 screws. o Allow for a clearance of
  • 3Com 3CRWE825075A-US | User Guide - Page 21
    3 Position the access point at an angle to the mounting plate bayonet connection and turn the unit clockwise until it snaps into place, as shown below. Leave at least 13 cm (5 in.) length. Ethernet cable may be routed through center opening or through the side. Hold the access point at an angle.
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    antenna for the Access Point 8250 or Access Point 8750, several options are available by model number from the 3Com Web site (www.3Com.com). (Access Point 8500 does not support interchangeable antennas.) For each of the antenna models, you will need either a 6-foot accessory cable (model 3CWE480) or
  • 3Com 3CRWE825075A-US | User Guide - Page 23
    Back Back 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 the antenna and a client is not strictly necessary, such an arrangement helps to ensure a strong signal. Ensure that
  • 3Com 3CRWE825075A-US | User Guide - Page 24
    POWER SETTINGS ON THE ACCESS POINT FOR EXTERNAL ANTENNAS USA 6 ft (3CWE480) 20ft (3CWE481) 50 ft (3CWE482) 2.5dBi 4dBi 8dBi (3CWE492) (3CWE490, (3CWE491, 3CWE497) 3CWE498) 100% 100% 100% 100% 100% 100% 100% 100% 100% European Community 2.5dBi (3CWE492) 4dBi (3CWE490, 3CWE497) 8dBi
  • 3Com 3CRWE825075A-US | User Guide - Page 25
    select devices for administrative changes. o 3Com 3CDaemon Server Tool. This tool can act in four different capacities: o As a TFTP Server, necessary for firmware upgrades, and backup and restore and Utilities. 4 Select the item you want to install and follow the instructions on the screen. 25
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    supported Windows operating system and Web browser. USING THE 3COM WIRELESS DEVICE MANAGER After the 3Com 3Com Wireless Infrastructure Device Manager window. The tree lists all WLAN service areas on the network and expands to show the 3Com wireless LAN devices that are associated to each service
  • 3Com 3CRWE825075A-US | User Guide - Page 27
    of the selected device: Device Name, Device Type, Wireless LAN Service Area (ESSID), IP Address, Subnet Mask, and MAC Address. on the same subnet as your computer. Refresh Scans the network and displays the connected 3Com 11 Mbps Wireless LAN devices. Choose NIC If your computer has more than one
  • 3Com 3CRWE825075A-US | User Guide - Page 28
    USING THE PRE-IP CONFIGURATION WIZARD You can only configure devices that are on the same subnet as your computer. To configure a device on a different subnet, you must first assign it an IP address on the same subnet as your computer. After you launch the configuration, you can change settings as
  • 3Com 3CRWE825075A-US | User Guide - Page 29
    . 1 In the Home page, click Setup Wizard. 2 In the "1-2-3" Setup Wizard page, click Next to start basic configuration. 3 In the SSID page, enter the same Service Set ID as the other wireless devices in your network and click Next. (The SSID may be up to 32 alphanumeric characters and is case
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    specified must be valid on the same subnet. o Default Gateway-The default gateway address is optional, but may be required by your Internet Service Provider. o Primary DNS Address and Secondary DNS Address-The Domain Name Servers (DNS) map numerical IP addresses to the equivalent domain name (for
  • 3Com 3CRWE825075A-US | User Guide - Page 31
    be used for authentication and accounting. RADIUS (Remote Access Dial-In User Service) is a login authentication protocol that uses software running on a central is detected in the primary server. Once the access point switches over to the secondary authentication server, it periodically attempts to
  • 3Com 3CRWE825075A-US | User Guide - Page 32
    In the RADIUS Authentication section, enter the required parameters for a primary and secondary RADIUS authentication server. In the RADIUS Accounting section, click the Enable radio button, then enter required parameters for a primary and secondary RADIUS accounting server. When you are finished
  • 3Com 3CRWE825075A-US | User Guide - Page 33
    key (PSK)" for WPA key management and the other is "WPA authentication over 802.1x", then the 802.1x Wireless Setup must be set to "Supported" instead. When 802.1x is enabled, the broadcast and session key rotation intervals can also be configured. Set these values to force the periodic refresh
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    Point 802.1x Authentication to Network-802.1x can also be enabled on the ethernet port of the switch that the access point's ethernet cable is plugged into. Having 802.1x enabled on the switch prevents any device that is not able to successfully authenticate from being able to use the ethernet
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    filter choices may supersede others. Configure the options as described below. When you are finished, click Apply. FILTERING BY VLAN The access point supports filtering of up to 64 VLANs (virtual local area networks). VLAN IDs must be configured for each client on one of the RADIUS authentication
  • 3Com 3CRWE825075A-US | User Guide - Page 36
    VLAN Switch ports must be tagged ports that match the VLAN ID on the Access Point. Associated client VLAN IDs will appear in communications between clients associated with different AP's on the local sub net. For instance an airport may have several AP's to service several "hot spots" within 36
  • 3Com 3CRWE825075A-US | User Guide - Page 37
    SNMP the airport. However the client to client blocking feature of the AP will only block communications to other clients associated with the same AP. And will not block client to client of another AP communications. By using the Uplink Filtering function of the AP communications to all other
  • 3Com 3CRWE825075A-US | User Guide - Page 38
    Upgrade to start the upgrade process. The upgrade takes place through the HTTP protocol from the local machine. o Remote-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
  • 3Com 3CRWE825075A-US | User Guide - Page 39
    To back up a configuration - Type the IP address of the TFTP server and a name for the backup file in the spaces provided. Click Basic (to save a partial configuration) or Complete (to save an entire configuration) and click Backup Configuration. To restore a configuration - Type the IP address of
  • 3Com 3CRWE825075A-US | User Guide - Page 40
    To set up a server for event logs: Select System Log Setup Enable, select a logging severity level from the pulldown list, enable the Logging Host and Logging Console, and enter the IP address of the server in the space provided. To designate an SNTP server for obtaining the date and time: Select
  • 3Com 3CRWE825075A-US | User Guide - Page 41
    o SSID-Enter the Service Set ID (up to 32 alphanumeric characters). Clients must set their SSIDs to match the access point. The SSID is case sensitive. o Closed System- Enabling
  • 3Com 3CRWE825075A-US | User Guide - Page 42
    not be aware of each other. The RTS/CTS mechanism can solve this hidden node problem. (Default: 2346) o Preamble Setting (802.11g and 802.11b only)-IEEE 802. : Long) o Client Access Mode (802.11g only)-802.11g radios can support both 802.11b and 802.11g clients. This option determines which mode the
  • 3Com 3CRWE825075A-US | User Guide - Page 43
    must also be enabled as described in "Configuring Encryption" on page 43. o 128-Bit Dynamic Security Link-This option can only be used with other 3Com Wireless LAN devices. The user name and password set on the access point must match those set on the clients. Each network session creates a unique
  • 3Com 3CRWE825075A-US | User Guide - Page 44
    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
  • 3Com 3CRWE825075A-US | User Guide - Page 45
    802.1x", then the 802.1x Wireless Setup must be set to "Supported" on the Authentication Page instead. WEP Configuration WEP encryption is based on for example, D7 0A 9C 7F E5) Alphanumeric (0~9, A~F; for example 01234) 3Com Passphrase(a string, described below) 4 Enter the keys in their fields. 64-
  • 3Com 3CRWE825075A-US | User Guide - Page 46
    Wireless LAN devices. It is a case-sensitive string between 6 and 30 characters long. To enter the string, click 3Com Passphrase. Then type any combination of letters and numbers in the Key 1 field and click Apply. 5 Uncheck box under WPA Configuration 6 Choose the WEP option
  • 3Com 3CRWE825075A-US | User Guide - Page 47
    Enabled. c WPA Configuration is Checked to "Allow only WPA Clients". d Cipher Mode is set to AES/TKIP/WEP (WEP Cipher Mode is intended ONLY for support of legacy clients. If only WPA clients are on the network, choose AES or TKIP for increased security). e WEP Configuration has at least one valid
  • 3Com 3CRWE825075A-US | User Guide - Page 48
    Enabled. c WPA Configuration is Checked to "Allow only WPA Clients". d Cipher Mode is set to AES/TKIP/WEP (WEP Cipher Mode is intended ONLY for support of legacy clients. If only WPA clients are on the network, choose AES or TKIP for increased security). e WEP Configuration has at least one valid
  • 3Com 3CRWE825075A-US | User Guide - Page 49
    notes apply to configuring the access point for WPA under Windows XP: o A WPA-capable wireless network interface card is required. o The Windows XP Support Patch for Wireless Protected Access, which you can download from the Microsoft Web site, is required. o To allow WEP clients, clear the WPA
  • 3Com 3CRWE825075A-US | User Guide - Page 50
    Windows XP Wireless Zero Configuration Access Points 8200/8250/8500/8700/8750 Authentication WPA-PSK Encryption AES TKIP WEP Authentication Not available on 8200 Open System Open System Encryption Enable Enable Other WPA Configuration: Required Multicast Cipher Mode: TKIP WPA Key Management:
  • 3Com 3CRWE825075A-US | User Guide - Page 51
    TROUBLESHOOTING If you have difficulty with the 3Com further assistance, contact 3Com Technical Support through the following Web page: http://www.3com.com/products/en_US/supportedindex. cable is plugged into the port labeled To Hub/Switch on the power brick. Verify the network wiring and topology for
  • 3Com 3CRWE825075A-US | User Guide - Page 52
    topology and configuration for malfunctions. Running on a computer connected to the wired LAN, the 3Com Device Manager cannot find an access point. The 3Com Device Manager cannot discover devices across routers. Make sure that the computer is connected on the same segment as the access point
  • 3Com 3CRWE825075A-US | User Guide - Page 53
    you are configuring and you change the access point service area or security, make sure to change the client service area to match. If you change the IP 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
  • 3Com 3CRWE825075A-US | User Guide - Page 54
    Services is available at http://www.3com.com/ WHERE TO GO FOR HELP Contact your authorized 3Com reseller or 3Com for additional product and support information. You will find support tools posted on the 3Com web site at www.3com.com TROUBLESHOOT ONLINE 3Com Knowledgebase helps you troubleshoot 3Com
  • 3Com 3CRWE825075A-US | User Guide - Page 55
    access upgrades and related documentation you must first purchase a service contract from 3Com or your reseller. CONTACT US 3Com offers telephone, e-mail and internet access to technical support and repair services. To access these services for your region, use the appropriate telephone number, URL
  • 3Com 3CRWE825075A-US | User Guide - Page 56
    9469 800 810 3033 800 6161 463 080 333 3308 00801 611 261 001 800 611 2000 You can also obtain support in this region using the follwoing email, [email protected] Or request a repair authorization number (RMA) by fax using this number: + 65 543 6348 Europe, Middle East, and Africa
  • 3Com 3CRWE825075A-US | User Guide - Page 57
    America. Spanish speakers, enter the URL: http://lat.3com.com/lat/support/form.html Portuguese speakers, enter the URL: http://lat.3com.com/br/support/form.html English speakers in Latin America should send e-mail to: [email protected] Or call using the following numbers Antigua 1 800 988
  • 3Com 3CRWE825075A-US | User Guide - Page 58
    serviceable components. Any unauthorized product changes or modifications will invalidate 3Com's and used in accordance with the instructions, may cause harmful interference to radio 004-000-00345-4. Manufacturer's Declaration of Conformity 3Com Corporation 350 Campus Drive Marlborough, MA 01752-3064
  • 3Com 3CRWE825075A-US | User Guide - Page 59
    from Health Canada's web site www.hc-sc.gc.ca/rpb. Avis de Conformité à la Réglementation d'Industrie Canada Pour empêcher toute interférence aux services faisant l'objet d'une licence, cet appareil doit être utilisé à l'intérieur seulement et devrait être placé loin des fenêtres afin de fournir un
  • 3Com 3CRWE825075A-US | User Guide - Page 60
    n EN 301 489-17-Electromagnetic compatibility and Radio Spectrum Matters (ERM); Electromagnetic Compatibility (EMC) standard for radio equipment and services; Part 17: Specific conditions for 2.4 GHz wideband transmission systems and 5 GHz high performance RLAN equipment. n EN 60950-Safety of
  • 3Com 3CRWE825075A-US | User Guide - Page 61
    certified to these or other equivalent standards: n UL Standard 60950, 3rd Edition / CSA C22.2 No. 60950-00 n IEC 60950 n EN 60950 Published September, 2003 User Guide Version 2.3.2
  • 3Com 3CRWE825075A-US | User Guide - Page 62
    Server Tool 25 3Com Network Supervisor 25 3Com Passphrase encryption 46 3Com Wireless Infrastructure Device Manager 25, 26 802.11a, turbo mode 41 802.1x reauthentication refresh rate 34 802.1x setup 33 A access control, 43 access point installation 13 IP address, troubleshooting 52 resetting 39
  • 3Com 3CRWE825075A-US | User Guide - Page 63
    3Com Passphrase 46 configuring 43 shared key 45 WEP 43, 45 WPA 43, 44 Ethernet cable 13 Ethernet type filter 37 event logs 40 F filter control 35 firmware 24, 25 wall mount 19 IP address 30 refreshing after changing 27 troubleshooting 52 L launching the device manager 26 LEDs 19 local bridge filter
  • 3Com 3CRWE825075A-US | User Guide - Page 64
    26 system log 39 T TCP/IP settings 30 terminology 11 time and date settings 40 transmission power 41 trap destination 38 troubleshooting 51 turbo mode 41 U upgrading firmware 38 user access list 128-bit Dynamic Security Link 43 V VLAN 36 VLAN ID 36 W wall mount installation 19 web server
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User Guide
Wireless LAN Access Points 8250/8500/8750
3CRWE825075A
3CRWE850075A
3CRWE875075A
(Models WL-450, WL-462, WL-463)
Version 2
Published January, 2004
Version 2.3.12