3Com 3CRWE725075A User Guide

3Com 3CRWE725075A - Wireless LAN Access Point 7250 Manual

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  • 3Com 3CRWE725075A | User Guide - Page 1
    Wireless LAN Access Point 7250 3CRWE725075 (Model WL-455) User Guide http://www.3com.com/ http://www.3com.com/support/en_US/productreg/frontpg.html/ Published December, 2003
  • 3Com 3CRWE725075A | User Guide - Page 2
    trademarks of 3Com Corporation. Wi-Fi is a trademark of the Wireless Ethernet Compatibility Alliance. All other company and product names may be trademarks of the respective companies with which they are associated. EXPORT RESTRICTIONS: This product contains Encryption and may require US and/or
  • 3Com 3CRWE725075A | User Guide - Page 3
    19 Selecting and Connecting a Different Antenna Model 20 Power Settings on the Access Point for External antennas 22 Installing Software Utilities 23 SYSTEM CONFIGURATION Using the 3Com Wireless Device Manager 24 Launching a Wireless Device Configuration 24 Using the Pre-IP Configuration Wizard
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    Protocol Type 35 SNMP 35 Administration 36 System Log 37 Status 38 Radio Interface 39 Radio Settings 39 Security 40 Configuring Authentication 40 Configuring Encryption 41 WPA Configuration (PSK) Key 46 WPA Configuration for Windows XP 47 TROUBLESHOOTING Troubleshooting Table 49
  • 3Com 3CRWE725075A | User Guide - Page 5
    TECHNICAL SUPPORT Obtaining Support for your Product 52 Register Your Product to Gain Service Benefits 52 Purchase Value-Added Services 52 Where To Go For Help 52 Troubleshoot Online 52 Access Software Downloads 53 Contact Us 53 Telephone Technical Support and Repair 53 REGULATORY COMPLIANCE
  • 3Com 3CRWE725075A | User Guide - Page 6
    security on the market today. To protect sensitive data broadcast over the wireless LAN, 3Com supports Wireless Equivalent Privacy (WEP) RC4 40/ 64-bit, 128-bit and 152-bit shared-key encryption. 3Com strengthens this basic security mechanism with additional security features, including MAC address
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    wireless device software on multiple devices using 3Com Network Supervisor to simplify bulk updates. With Power over Ethernet (PoE) support, power outlet locations. PoE support makes it easier than ever to overcome installation problems with difficult-to-wire or hard-to-reach locations. WIRELESS
  • 3Com 3CRWE725075A | User Guide - Page 8
    AND PLANNING The wireless solution supports a stand-alone wireless network configuration as wireless adapter, connected via radio signals as an independent wireless LAN. Computers in a specific ad hoc wireless LAN must therefore be configured to the same radio channel. An ad hoc wireless
  • 3Com 3CRWE725075A | User Guide - Page 9
    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
  • 3Com 3CRWE725075A | User Guide - Page 10
    wireless LAN. Backbone-The core infrastructure of a network. The portion of the network that transports information from one central location to another central location where it is unloaded onto a local system. Base Station-In mobile telecommunications, a base station is the central radio Service
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    several different authentication methods. ESS-Extended Service Set. More than one BSS is authentication and session based keys. Roaming-A wireless LAN mobile user moves around an ESS are "hidden nodes"). The RTS/CTS mechanism can solve this problem. If the packet size is smaller than the preset RTS
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    AC adapter is not needed. • Standard category 5 straight (8-wire) Ethernet cable. The cable must be long enough to reach the power supply or the Power-over-Ethernet LAN port. If you use the 3Com AC adapter, you need an additional Ethernet cable to connect the access point to the LAN. • To access and
  • 3Com 3CRWE725075A | User Guide - Page 13
    and the wireless network. POWER REQUIREMENTS The access point complies with the IEEE 802.3af Power-over-Ethernet standard. It receives power over standard category 5 straight (8-wire) Ethernet cable. Installation requires the use of either the 3Com AC adapter or IEEE 802.3af compliant power supply
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    , fluorescent lights, microwave ovens, refrigerators or any other electrical equipment that can interfere with radio signals. If you are connecting the access point to a wired network, the location must provide an Ethernet connection. You will need to run an Ethernet cable from the power supply to
  • 3Com 3CRWE725075A | User Guide - Page 15
    shows the front and rear views of the access point, including the LEDs and connecting ports. LEDs Radio Ethernet er Pow Access Point 7250 - Front Console port Ethernet port Power supply Access Point 7250 - Back CAUTION: Do not connect a telephone cable into the Ethernet port; doing so can
  • 3Com 3CRWE725075A | User Guide - Page 16
    THE STANDARD ANTENNAS The Access Point 7250 is supplied with standard detachable antennas. These should be attached and Connecting a Different Antenna Model" on page 20. CONNECTING POWER It is advisable to connect the power and check the Ethernet cables and LEDs before installing the unit in
  • 3Com 3CRWE725075A | User Guide - Page 17
    point. USING THE INCLUDED AC ADAPTER The power supply included with the Access Point 7250 is an AC adapter. 1 Connect the power cord to the AC adapter and plug the cord into a power outlet. 2 Connect the DC power into the Access Point 7250. Radio Ethernet Power Ethernet cable Using the included AC
  • 3Com 3CRWE725075A | User Guide - Page 18
    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). Radio Ethernet er Pow Radio Ethernet Power Using an Optional Power-over-Ethernet Injector Using an Optional Power-over-Ethernet LAN Port 16
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    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 describe the LEDs and their functions. RADIO ETHERNET POWER Name Description Radio LED blinks red to indicate radio activity
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    MOUNTING ON A WALL CAUTION: The mounting plate is designed for wall mount installation only. To avoid ! equipment damage and possible injury, do not use the mounting plate for a ceiling installation. The access point comes equipped with all the necessary hardware for mounting on a wall, including a
  • 3Com 3CRWE725075A | User Guide - Page 21
    and turn the unit clockwise until it snaps into place, as shown below. Top opening Hook for securing the cable B A A Center opening Radio Ethernet Power B Align with mounting plate and rotate clockwise to lock FLAT SURFACE INSTALLATION The access point can also be placed on a flat surface
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    Radio Ethernet er Pow Connect Ethernet cable Rotate antennas for best reception Note will limit the radiated power output and range of the access point. Of the options available, we recommend the 3Com 6-foot Antenna Cable (3CWE480). The standard detachable antennas supplied with the Access Point
  • 3Com 3CRWE725075A | User Guide - Page 23
    Radio Ethernet Power Radio Ethernet Power Antennas can be connected to either side of the access point after the standard detachable antennas have been removed, as shown below. 1 Position the antenna
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    POWER SETTINGS ON THE ACCESS POINT FOR EXTERNAL ANTENNAS USA 2.5dBi 4dBi 8dBi (3CWE492) (3CWE490, (3CWE491, 3CWE497) 3CWE498) 6 ft 100% (3CWE480) 100% 100% 20ft 100% (3CWE481)
  • 3Com 3CRWE725075A | User Guide - Page 25
    Wireless Infrastructure Device Manager. Use this tool to discover access points and select devices for administrative changes. • 3Com 3CDaemon Server Tool. This tool can act in four different capacities: • As a TFTP Server, necessary for firmware CD: 1 Power up the computer and put the 3Com CD in the
  • 3Com 3CRWE725075A | User Guide - Page 26
    3COM WIRELESS DEVICE MANAGER After the 3Com Wireless Device Manager is installed, 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
  • 3Com 3CRWE725075A | User Guide - Page 27
    be set. When the units are shipped from the factory, there is no administration password and you should leave 3Com Wireless Infrastructure Device Manager window. Button Description Properties Displays the following properties of the selected device: Device Name, Device Type, Wireless LAN Service
  • 3Com 3CRWE725075A | User Guide - Page 28
    . Follow this procedure: 1 In the Wireless Infrastructure Device Pre-IP Configuration window, accept When the units are shipped from the factory, there is no administration password and you Code determines the available channels and transmission power level based on regulatory restrictions in the
  • 3Com 3CRWE725075A | User Guide - Page 29
    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 11g Radio Channel-Set the operating radio channel number. • Auto Channel Select-When this mode is enabled, the access point selects a radio channel
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    subnet mask, you must configure the network settings of the computers on your wireless LAN to use the same subnet mask. The IP addresses specified must be gateway address is optional, but may be required by your Internet Service Provider. • Primary DNS Address and Secondary DNS Address-The Domain
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    example, www.3Com.com). Your internet service provider should provide the IP address of one or could be intercepted during the configuration session. Changing this option causes the device to reset, which disrupts the network association temporarily, but does not affect device configuration settings
  • 3Com 3CRWE725075A | User Guide - Page 32
    authentication server. In the RADIUS Accounting section, click the Enable radio button, then enter required parameters for a primary and secondary RADIUS type of upper-layer authentication the access point uses for wireless clients. Access is checked against the MAC Address authentication database
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    supported. This is provided for ease of migration. This option works with WPA key management set to either "WPA authentication over 802.1x" or "WPA pre-shared key (PSK)" on the radio "RADIUS" on page 29.) Select Supported or Required on the 802.1x Wireless Setup field above. Enter data as described
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    would use a username and password of "123456789abc". If "MD5 Authentication to Network with Supplied Username and Password" is selected, the access point with authenticate using the username and password supplied. If you press the "Apply" button when no password is specified, the previous password
  • 3Com 3CRWE725075A | User Guide - Page 35
    checking does not occur. FILTER CONTROL The Filter Control page allows you to control client communication within the wireless network. You may enable one or more types of supported filtering; however, some filter choices may supersede others. Configure the options as described below. When you are
  • 3Com 3CRWE725075A | User Guide - Page 36
    can be set to 1, 5, 10, 30 or 60 minutes (default is 30 minutes). UPLINK PORT MAC ADDRESS FILTERING This feature allows associated wireless clients to communicate only with specific selected MAC addresses on a subnet. By only allowing clients to communicate with a few specific servers such as
  • 3Com 3CRWE725075A | User Guide - Page 37
    the local subnet. For instance an airport may have several AP's to service several "hot spots" within the airport. However the client-to-client gateways and other servers that should be allowed to communicate with the AP's wireless clients. Make sure to click on the save button on both the Uplink
  • 3Com 3CRWE725075A | User Guide - Page 38
    Upgrade to start the upgrade process. The upgrade takes place through the HTTP protocol from the local machine. • 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 3CRWE725075A | User Guide - Page 39
    , country code, radio settings, security settings factory default configuration and reboot 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
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    the pull-down list, enable the Logging Host and Logging Console, and enter the IP address of the server in the revert to the defaults after an access point is reset, affecting the accuracy of log reports. To avoid system configuration and access point wireless configuration. • Stations Status-Click
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    signal interval at which beacon frames are transmitted from the access point. The beacon signals allow wireless devices to maintain contact with each other. They may also carry power-management information. The Beacon Interval unit is TU, which corresponds to 1024 microseconds. (Default: 100 TU
  • 3Com 3CRWE725075A | User Guide - Page 42
    aware of each other. The RTS/CTS mechanism can solve this hidden node problem. (Default: 2346) • Preamble Setting-IEEE 802.11 frames begin with an Client Access Mode-802.11g radios can support both 802.11b and 802.11g clients. This option determines which mode the radio will operate in and
  • 3Com 3CRWE725075A | User Guide - Page 43
    also be enabled as described in "Configuring Encryption" on page 42. • 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, one
  • 3Com 3CRWE725075A | User Guide - Page 44
    Protected Access. • WEP-Wired Equivalent Privacy. The access point and the wireless devices must have the same encryption settings to communicate. You can choose to only select WEP as the Cipher Mode if legacy client support is critical. AES - Advanced Encryption Standard (Highest Security) TKIP
  • 3Com 3CRWE725075A | User Guide - Page 45
    Radio is installed, and "WPA pre-shared key (PSK)" is selected on the security page, then the 802.1x Wireless Setup can be either "Disabled" or "Supported" on the Authentication Page. • If only one Radio E5) Alphanumeric (0~9, A~F; for example 01234) 3Com Passphrase(a string, described below) 4 Enter
  • 3Com 3CRWE725075A | User Guide - Page 46
    digits or 16 alphanumeric characters. 3Com Passphrase-This encryption string is for use only with other 3Com Wireless LAN devices. It is a to be allowed). c Click on Apply. 9 Click Security on the 802.11b/g radio from the left frame page Menu. 10 Make sure the following settings are set from
  • 3Com 3CRWE725075A | User Guide - Page 47
    before 802.1x can be done). b 802.1x Wireless Setup: is set to Optional (if non-RADIUS clients on Apply. 9 Click Security on the 802.11b/g radio from the left frame page Menu. 10 Make sure the AES/TKIP/WEP (WEP Cipher Mode is intended ONLY for support of legacy clients. If only WPA clients are on the
  • 3Com 3CRWE725075A | User Guide - Page 48
    PRE-SHARED (PSK) KEY 1 Using the Wireless Infrastructure Device Manger access the configuration screen for Apply. 6 Click Security on the 802.11a/b/g radio from the left frame page Menu. 7 Make sure TKIP/WEP (WEP Cipher Mode is intended ONLY for support of legacy clients. If only WPA clients are on
  • 3Com 3CRWE725075A | User Guide - Page 49
    . The following notes apply to configuring the access point for WPA under Windows XP: • A WPA-capable wireless network interface card is required. • The Windows XP Support Patch for Wireless Protected Access, which you can download from the Microsoft Web site, is required. • To allow WEP clients
  • 3Com 3CRWE725075A | User Guide - Page 50
    Windows XP Wireless Zero Configuration Access Points 7250/8250/8500/8750 Authentication WPA-PSK Encryption AES TKIP WEP Authentication Not available on 8200 Open System Open System Encryption
  • 3Com 3CRWE725075A | User Guide - Page 51
    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/supportindex.jsp Symptom Solutions Access point does not power up
  • 3Com 3CRWE725075A | User Guide - Page 52
    address. Access point powers up, but Confirm that the service area on the access point matches that does not associate with wireless on the clients. connected to the wired LAN, the 3Com Device Manager cannot find an access point. The 3Com Device Manager cannot discover devices across routers
  • 3Com 3CRWE725075A | User Guide - Page 53
    wireless association, the service the 3Com Device Manager Wireless Network Tree and click Refresh. 3 Select the access point and click Configure to start a new configuration session. The access point cannot be configured using the Web browser. Reset the access point (push the reset
  • 3Com 3CRWE725075A | User Guide - Page 54
    and Professional 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 http://www.3com.com/ TROUBLESHOOT ONLINE 3Com Knowledgebase
  • 3Com 3CRWE725075A | 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 3CRWE725075A | 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 following email: [email protected] Or request a repair authorization number (RMA) by fax using this number: + 65 543 6348 Europe, Middle East, and Africa
  • 3Com 3CRWE725075A | User Guide - Page 57
    : Latin 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
  • 3Com 3CRWE725075A | User Guide - Page 58
    REGULATORY COMPLIANCE INFORMATION 3Com Wireless LAN Access Point 7250 (Model WL-455) FCC Radio-Frequency Exposure Notice This device generates and radiates radio-frequency energy. In order to comply with FCC radio-frequency radiation exposure guidelines for an uncontrolled environment, this
  • 3Com 3CRWE725075A | User Guide - Page 59
    band and using spread spectrum modulation techniques • 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
  • 3Com 3CRWE725075A | User Guide - Page 60
    certified to these or other equivalent standards: • UL Standard 60950, 3rd Edition / CSA C22.2 No. 60950-00 • IEC 60950 • EN 60950 Published December, 2003 User Guide Version 1
  • 3Com 3CRWE725075A | User Guide - Page 61
    Server Tool 22 3Com Network Supervisor 22 3Com Passphrase encryption 43 3Com Wireless Infrastructure Device Manager 22, 24 802.1x reauthentication refresh rate 32 802.1x setup 31 A access control 41 access point installation 10 IP address, troubleshooting 50 resetting 37 accounting 30
  • 3Com 3CRWE725075A | User Guide - Page 62
    beacon interval 39 bridge resetting 29 broadcast key refresh rate 31 C cable 10 change password 25, 26 configuration, backup and restore 36 Configure button 25 configuring encryption 41 connecting power 11, 14 contact 36 country code 26 D data encryption 41 transfer speed 39 date
  • 3Com 3CRWE725075A | User Guide - Page 63
    type filter 35 event logs 38 F filter control 33 firmware upgrade 36 flat surface installation 19 fragment length 39 G gateway, default 28 glossary of wireless networking terms 8 I identification 28 IEEE 802.3af power-over-Ethernet 14 infrastructure configuration 6 installation 10 access
  • 3Com 3CRWE725075A | User Guide - Page 64
    refreshing after changing 25 troubleshooting 50 L launching the device manager 24 LEDs 17 local bridge filter 34 local MAC authentication 32 locating devices 24, 25 MAC address 33 location configuration
  • 3Com 3CRWE725075A | User Guide - Page 65
    Dynamic Security Link 41 planning a network 6 power 11 connecting 14 requirements 11 supply, 3Com integrated 14, 16 power-over-Ethernet 14 preamble 40 Pre-IP Configuration Wizard 25, 26 Properties button 25 R radio channel 39 radio interface 38 RADIUS accounting 30 RADIUS Authentication
  • 3Com 3CRWE725075A | User Guide - Page 66
    28 system configuration 24 system log 37 T TCP/IP settings 28 terminology 8 time and date settings 38 transmission power 39 trap destination 36 troubleshooting 49 U upgrading firmware 36 user access list 128-bit Dynamic Security Link 41 V VLAN 34 VLAN ID 34 W wall mount installation
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User Guide
Wireless LAN Access Point 7250
3CRWE725075
(Model WL-455)
Published December, 2003