3Com WL-455, User Manual

Page 1: ...http www 3com com http www 3com com support en_US productreg frontpg html User Guide Wireless LAN Access Point 7250 3CRWE725075 Model WL 455 Published December 2003...

Page 2: ...opy 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 fo...

Page 3: ...ce Equipment and Performing A Site Survey 12 Before You Begin 13 Connecting the Standard Antennas 13 Connecting Power 14 Using The Included AC Adapter 15 Using An Optional Power Over Ethernet Injector...

Page 4: ...ng 34 Filtering by Ethernet 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...

Page 5: ...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 Sup...

Page 6: ...he single wireless interface 802 11g 2 4 GHz 54 Mbps access point creates an enterprise class wireless LAN supporting up to 250 simultaneous users SECURITY 3Com offers one of the most robust suite of...

Page 7: ...less device software on multiple devices using 3Com Network Supervisor to simplify bulk updates With Power over Ethernet PoE support the same Category 5 cable that connects your access point to the da...

Page 8: ...ss network cards adapters and access point can be configured as Ad hoc for departmental or SOHO LAN Infrastructure for wireless LAN Infrastructure wireless LAN for roaming wireless PCs AD HOC WIRELESS...

Page 9: ...signal through one or more access points A wireless infrastructure can be used for access to a central database or for connection between mobile workers as shown in the following figure INFRASTRUCTUR...

Page 10: ...a base station is the central radio transmitter receiver that maintains communications with the mobile radiotelephone sets within its range In cellular and personal communications applications each c...

Page 11: ...cation and session based keys Roaming A wireless LAN mobile user moves around an ESS and maintains a continuous connection to the infrastructure network RTS Threshold Transmitters contending for the m...

Page 12: ...f Power over Ethernet LAN equipment use the 3Com AC adapter that comes with the access point If your LAN equipment complies with the IEEE 802 3af Power over Ethernet standard you can connect directly...

Page 13: ...Port on page 17 SAFETY INFORMATION This equipment must be installed in compliance with local and national building codes regulatory restrictions and FCC rules For the safety of people and equipment o...

Page 14: ...ission If your location includes these kinds of obstructions you may need to add additional access points to improve coverage Configuring a wireless LAN can be as easy as placing a 3Com Wireless Acces...

Page 15: ...each location The MAC address is printed on the back of the access point housing The following illustration shows the front and rear views of the access point including the LEDs and connecting ports N...

Page 16: ...p 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 exter...

Page 17: ...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 not been altered in any way Use of no...

Page 18: ...rnet port on the access point 2 Connect the other end of the Ethernet cable to the port labeled To Access Point on the power supply 3 Connect the power cord to the power supply and plug the cord into...

Page 19: ...cess point LEDs light The illustration and the following table describe the LEDs and their functions Name Description Radio LED blinks red to indicate radio activity Faster blinking indicates more act...

Page 20: ...d install the top screw into the stud as shown at left in the illustration and then vertically align the mounting plate before installingthe bottom screw For installation on to drywall mark three scre...

Page 21: ...f the access point 4 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 FLAT SURFACE INSTALLATION The a...

Page 22: ...oint follow the building codes for antenna installations in your area Connect Ethernet cable Rotate antennas for best reception R ad io E th er ne t P ow er Note Regulatory restrictions dictate that w...

Page 23: ...cess is available for routing the antenna cable from the antenna to the access point 2 If they are installed remove both arms of the standard detachable antennas making sure not to handle the tips of...

Page 24: ...Bi 3CWE492 4dBi 3CWE490 3CWE497 8dBi 3CWE491 3CWE498 6 ft 3CWE480 100 100 100 20ft 3CWE481 100 100 100 50 ft 3CWE482 100 100 100 2 5dBi 3CWE492 4dBi 3CWE490 3CWE497 8dBi 3CWE491 3CWE498 13dBi 3CWE495...

Page 25: ...rk Supervisor The 3Com Network Supervisor 3NS graphically discovers maps and displays network links and IP devices including 3Com wireless access points It is not required for access point management...

Page 26: ...ss 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 sel...

Page 27: ...For more information see Using the Pre IP Configuration Wizard on page 26 The next window prompts for an administrative password to allow the new IP address to be set When the units are shipped from t...

Page 28: ...d 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 y...

Page 29: ...ric characters and is case sensitive 4 In the Channel page select the channel options for the access point radios and click Next The channel options are 802 11g You can select from these options 802 1...

Page 30: ...inished configuring items on this page click Apply DHCP CLIENT When DHCP Dynamic Host Configuration Protocol Client is enabled and a DHCP server is located on the network the network DHCP server assig...

Page 31: ...twork 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 con...

Page 32: ...tication 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 a...

Page 33: ...s related checks are performed on a client requesting authentication to the access point 802 1x Wireless Setup 802 1x is designed to enhance the security management of the wireless network Select one...

Page 34: ...ntication 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 speci...

Page 35: ...ack 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 Parameter Description System Default Define the default filtering...

Page 36: ...ing 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 TIM...

Page 37: ...to eight MAC addresses that WILL be allowed to communicate with clients of the AP Make sure to include the MAC of the local DHCP server if it not the same as the gateway as well as and redirect gatew...

Page 38: ...y string box for a trap manager that will receive these messages Maximum length 23 characters ADMINISTRATION The Administration page allows you to perform access point management tasks as described be...

Page 39: ...d management setup information are restored Parameters that are unique to individual access points such as device names IP addresses and administration passwords are neither affected nor overwritten B...

Page 40: ...saving time When the SNTP Server setting is disabled date and time settings revert to the defaults after an access point is reset affecting the accuracy of log reports To avoid this situation enable t...

Page 41: ...e to choose channels separated by at least five channels to avoid channel interference You can deploy up to three access points in the same area for example Ch1 Ch6 and Ch11 Auto Channel Select Select...

Page 42: ...ame the station sends a CTS Clear to Send frame to acknowledge the right of the sending station to send data frames The access points contending for the medium may not be aware of each other The RTS C...

Page 43: ...s user authentication If you check the Require Windows user authentication check box clients will be required to enter a user name and password every time they associate with the network If you leave...

Page 44: ...icast Cipher Mode and is only provided for support of legacy clients which do not fully support WPA Clients associated with WPA TKIP will have unicast packets directed at them with corresponding encry...

Page 45: ...ys 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 se...

Page 46: ...e 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 Choos...

Page 47: ...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 authent...

Page 48: ...ation 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...

Page 49: ...onfiguration 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 7250...

Page 50: ...ment 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 Wi...

Page 51: ...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...

Page 52: ...ers 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 c...

Page 53: ...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 poin...

Page 54: ...4x7 telephone technical support software upgrades onsite assistance or advance hardware replacement Experienced engineers are available to manage your installation with minimal disruption to your netw...

Page 55: ...e telephone number URL or e mail address from the list below You will find a current directory of support telephone numbers posted on the 3Com web site at http csoweb4 3com com contactus TELEPHONE TEC...

Page 56: ...m com Or request a repair authorization number RMA by fax using this number 65 543 6348 Europe Middle East and Africa Telephone Technical Support and Repair From anywhere in these regions call 44 0 14...

Page 57: ...00 988 2112 0 810 444 3COM 1 800 998 2112 1 800 998 2112 1 800 998 2112 52 5 201 0010 1 800 998 2112 1 800 998 2112 0800 13 3COM 1 800 998 2112 AT T 800 9982112 AT T 800 998 2112 AT T 800 998 2112 1 8...

Page 58: ...sed in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equip...

Page 59: ...apparatus complies with Canadian ICES 003 Avis de Conformit la R glementation d Industrie Canada Cet appareil num rique de la classe B est conform la norme NMB 003 du Canada European Community CE Noti...

Page 60: ...nce Metropolitan Departments Indoor Channels 1 13 Outdoor Channels 1 7 only Guadeloupe Martinique St Pierre et Miquelon Mayotte Indoor Channels 1 13 Outdoor Channels 1 13 Reunion et Guane Indoor Chann...

Page 61: ...nstallation 10 IP address troubleshooting 50 resetting 37 accounting 30 ad hoc 6 adapter choosing 25 administration 36 administration tool 24 advanced setup 28 antenna 13 20 comparison data 20 options...

Page 62: ...nity name 36 configuration 24 advanced 28 basic 27 login 26 Configuration Management System 25 26 configuration backup and restore 36 Configure button 25 configuring encryption 41 connecting power 11...

Page 63: ...trol 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 infrast...

Page 64: ...ces 24 25 MAC address 33 location configuration parameter 36 for installation 12 log 37 login 26 M MAC address locating 33 recording 13 use in locating devices 24 25 MAC authentication 31 maximum stat...

Page 65: ...o interface 38 RADIUS accounting 30 RADIUS Authentication Setup Steps 44 RADIUS MAC authentication 31 reauthentication refresh rate 32 recording MAC address 13 Refresh button 25 resetting a bridge 29...

Page 66: ...em 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...