3Com 3CRWE776075, Owner'S Manual

Page 1: ...3Com Wireless 7760 11 a b g PoE Access Point 3CRWE776075 WL 561 www 3Com com 10015003 Rev AA March 2006 ...

Page 2: ...emove or deface any portion of any legend provided on any licensed program or documentation contained in or delivered 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 and the 3Com logo are registered trademarks of 3Com Corporation Intel and Pentium are regist...

Page 3: ...Installation CD 13 System Status 16 System Configuration 19 Service 33 Syslog function 38 Management 39 Connecting through the Com Port 46 Restoring factory settings 46 A Troubleshooting Diagnosing Problems 47 Obtaining Support for your 3Com Product B Register Your Product to Gain Service Benefits 50 Solve Problems Online 50 Purchase Extended Warranty and Professional Services 51 Access Software D...

Page 4: ...uct operates using 11a or 11g modes This access point creates an enterprise class wireless LAN supporting up to 64 simultaneous users Security 3Com offers one of the most robust suites of standards based security on the market today To protect sensitive data broadcast over the wireless LAN 3Com supports Wireless Equivalent Privacy WEP and Wi Fi Protected Access WPA and WPA2 3Com strengthens this b...

Page 5: ...figurations and monitor performance from anywhere on the network using an embedded web server browser 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 s...

Page 6: ...pack more wireless devices in a tighter space 802 11b g 802 11b and 802 11g both operate in the 2 4GHz band 802 11b can support data rate up to 11Mbps 802 11g can support data rate up to 54Mbps They both support the widest coverage up to 100m 328ft It is however subject to a greater risk of radio interference because it operates in the more popular 2 4GHz band Consider 802 11g when you need wider ...

Page 7: ...me If a mid span PSE is used then the mid span PSE can only implement power delivery over the spare pairs of the copper cabling and cannot be used to deliver Power over Ethernet over 1000BASE T connections It should be noted that even if a device supports both methods of providing power only one mechanism may be used to deliver power to a powered device The first mechanism is to use the data pairs...

Page 8: ...hing an External Antenna For first time use Installing Device Manager Unpacking the device Make sure that you have the following items in the box CD PoE Injector Power cord Two external 2 4 GHz and 5 3 GHz dual band antennas Mounting bracket attached to the access point Wall mounting hardware Locking bar used for securing a wall or ceiling mounted installation Two sheet metal screws Two thread scr...

Page 9: ...ct away at least 3 6 feet or 1 2 meters from electrical devices or appliances that generate RF noise The location should be away from transformers heavy duty motors fluorescent lights microwave ovens refrigerators Keep the number of walls and ceilings between the AP and other network devices to a minimum each wall or ceiling can reduce your AP s range from 3 90 feet 1 30 meters Position your devic...

Page 10: ...8 CHAPTER 2 Installing YOUR 3COM WIRELESS 7760 ACCESS POINT will travel straight through a wall or ceiling instead of at an angle for better reception ...

Page 11: ...that can be wall mounted For additional security the Access point also comes with a locking bar which can be used with a security lock not provided to lock the Access point to the cradle after the Access point is mounted to a wall To wall mount the Access Point 1 Route Ethernet cable through the large opening in the cradle 2 Screw the cradle to a wall The figures below show a cable being routed th...

Page 12: ...in place Checking the LED Indicators When the AP is connected to power LEDs indicate activity as follows LED Color Activity Power Green On Power On Off Power Off 11a Green On WLAN On Blinking sending receiving data from wireless LAN Off Transmitter is off Green On WLAN On 11b g Blinking sending receiving data from wireless LAN Off Transmitter is off 100 Green On Good Link Blinking sending receivin...

Page 13: ...vely When firmware is corrupted 11a and 11b g s LEDs will flash alternatively also Attaching an External Antenna This AP comes with two antennas They are external removable monopole dual band 2 4 GHz 5 GHz antennas They can be rotated over 360 degrees and are omni directional with a gain of less than 2 dBi The RF connector is an R SMA type If you require a different type of antenna for the Access ...

Page 14: ...orks with a DHCP Server If your network has a DHCP server an IP address is automatically assigned to the AP It takes between one and two minutes for the Access Point to determine if there is a DHCP server on the network Use the 3Com Wireless Infrastructure Device Manager Widman included on the 3Com Installation CD to locate the Access Point on the network and view its IP address After you determin...

Page 15: ...4 2 2 into the computer s web browser If the Configuration Management System starts the Access Point is using the factory assigned IP address You can configure the Access Point with the following login information Login name admin Password password If the Configuration Management System does not start the Access Point is on a different subnet than the computer Install and start the 3Com Wireless I...

Page 16: ...setup exe 3 In the menu click Tools and Utilities 4 In the next screen click the software you want to install 5 Follow the on screen instructions to complete the installation Reboot the computer if prompted to do so Launching the 3Com Wireless Infrastructure Device Manager To be able to configure the Access Point you need to run the Wireless Infrastructure Device Manager Go to Start Programs 3Com ...

Page 17: ... to the device through its Ethernet port or console port Follow the instructions below to login into the AP Configuration screen 1 Load a web browser and enter http 169 254 2 2 2 The Logon screen appears To log on to the Web interface 1 Username type admin case sensitive 3 Password type password 4 Click Log On ...

Page 18: ...erface has been designed to enable you to easily perform advanced configuration tasks and view information about the AP System Summary After you click Logon from the Log On Screen you ll see the system status page on the screen The System summary page is the default page that will pop up once you successfully log in The system summary page shows all the configuration information about your AP ...

Page 19: ...s 17 Wireless Station List Through this page you can easily identify the adjacent wireless stations It will automatically observe the adjacent wireless station s ID if specified MAC address SSID and current status ...

Page 20: ...18 CHAPTER 3 Configuring the Wireless 7760 Event Log List The event log list stores a record of all the events happen within this designated WLAN ...

Page 21: ...ccess Point Screen 1 allows you to setup the following information SSID Service Set Identifier This is the name of wireless network Input 1 32 characters Wireless Mode Choose the required network mode from the drop down menu Channel Frequency Choose a frequency from the drop down menu or select SmartSelect recommended to let the device select a channel Click Next to continue the configuration or c...

Page 22: ...work Setting Check the radio button for either obtaining an IP address via DHCP or specifying an IP Address manually IP Address Enter the IP address that you want to assign IP Subnet Mask Enter your networks subnet address Default Gateway If used enter the gateway address that the device should go through ...

Page 23: ...k Close to close without saving click Finish to save the settings Click Back to return to screen 2 System Properties The System properties page allows you to define Device name location operation modes and Load Type There are 5 operation modes to choose from Access Point mode A Wireless LAN data transceiver that uses radio waves to connect a wired network with wireless station ...

Page 24: ...o access points to extend the range of your infrastructure or to overcome an obstacle that blocks radio communication Wireless Bridge mode A wireless bridge connects two separate networks operating on the 802 11 standard Load Types are either FAT Default is set to be FAT mode AP FAP AP has complete set of AP features which can work alone as an individual AP FIT FIT mode AP needs to be connected to...

Page 25: ...System Configuration 23 predetermined for periods of time Choose Static IP if your network does not have an automatic system for IP address assignment ...

Page 26: ...ut modification by the user The feature increases throughput when bandwidth demands are high When bandwidth demands are low and at regular intervals normal mode allows legacy connectivity and new associations The Super Dynamic mode connection between the Ethernet Adapter and the access point may turn to normal mode connection if another station associates with the access point in normal mode The S...

Page 27: ...ned name for a wireless Wi Fi network Stations must use this unique identifier to communicate with an Access Point The SSID can be any alphanumeric entry up to a maximum of 32 characters BSSID Basic Service Set Identifier This is the assigned MAC address of the station in the access point This unique identifier is in Hex format and can only be edited when Multi BSSID is enabled in the previous scr...

Page 28: ... control the selected VAP Virtual Access Point Security There are 4 levels of security available and all have differing properties WEP Wired Equivalent Privacy data encryption provides data security WEP Share Key authentication and WEP data encryption will block all but the most determined hacker ...

Page 29: ... which was weak in WEP and to provide user authentication Only allows WPA clients to connect to the VAP You can choose TKIP or AES for encryption method The Group key update interval is configurable default value is 1800 seconds You can choose personal mode PSK or enterprise mode 802 1X authentication default PSK If you choose PSK you will need to enter a pass phrase of 8 63 ASCII characters or 64...

Page 30: ...n choose TKIP or AES for encryption method The Group key update interval is configurable default value is 1800 seconds You can choose personal mode PSK or enterprise mode 802 1X authentication The default setting is PSK If you choose PSK you will need to enter a pass phrase of 8 63 ASCII characters or 64 hexadecimal digits If you choose 802 1X you will need access to a RADIUS server port and secre...

Page 31: ...ional so the AP must know the MAC address of the other AP and the other AP must have a WDS link back to the AP Dynamically assigned and rotated encryption key are not supported in a WDS connection This means that WPA and other dynamic key assignment technologies may not be used Only Static WEP keys may be used in a WDS connection including any STAs that are associated with a WDS repeating AP Enter...

Page 32: ...ttings This item is only available in Access Point Mode and Wireless Bridge Mode Choose the required security level from None WEP WPA PSK TKIP WPA PSK AES WPA2 PSK TKIP or WPA2 PSK AES If using WEP security enter the WEP key if using WPA enter the pass phrase ...

Page 33: ... following data rates 12 18 24 36 48 72 96 108 and best Default is Best Transmit Power Choose between the following power levels Full Half 3dB Quarter 6dB Eighth 9dB or Minimum Default is Full Beacon Interval The interval time between 20ms and 1000ms for each beacon transmission The default is 100ms Data Beacon Rate DTIM The Delivery Traffic Indication Message Specify the data beacon rate between ...

Page 34: ...acket size that is used to determine if it should use the CSMA CA mechanism or the CSMA CD mechanism 802 11d support 802 1d allows the device to communicate in areas where the 802 11 standard is not allowed It adds features and restrictions to ensure compliance Antenna Type If you have added additional external antennas check the External High Gain Radio Antenna radio button The original packing i...

Page 35: ...ither Enable or Disable IAPP allows multiple access points to communicate and pass location information about their associated stations If you enable 802 11F support you should manually add BSSID IP mapping Enter the BSSID and IP addresses of the AP Click Add Only stations roaming from one of the listed APs to this AP are allowed to re associate with this AP Others will be requested to go through ...

Page 36: ...and Wireless Client Mode The QoS Setting should be modified with caution because radio behavior is affected These parameters can be modified when the radio for QoS service is Enabled Ack Policy when the Ack Policy is checked The device will not send ACK frames The default value is disabled ...

Page 37: ...ss category must wait for this fixed number of slots after each packet is received before resuming its random back off Transmit Opportunity Limit Enter the number of microseconds that qualified transmitters can transmit through the normal back off procedure with a set of pending packets Larger values allow a client to control the channel for longer periods of time allowing it to achieve higher thr...

Page 38: ... 0 10 Max Contention Window 2x 1 x can be 0 10 Fixed Slot Time 0 15 Transmit Opportunity 0 65535 μS AC TYPE AC_BK 4 10 7 0 AC_BE 4 6 3 0 3008 6016 when 11b AC_VI 3 4 1 1554 3264 when 11b AC_VO 3 2 3 1 SNTP Simple Network Time Protocol SNTP allows the administrator to configure the network time settings ...

Page 39: ...te of daylight saving will change automatically based on the time zone selection Note Start and End dates can be input manually to avoid and regional policy changes Primary and Secondary SNTP server port setting If SNTP is enabled this device will try to fetch time from the primary server first The timeout for primary NTP server is 5 seconds If the Primary NTP server fails after 5 seconds the Seco...

Page 40: ...ied server Click either Enable or Disable to activate or deactivate the system log function System Log Syslog Server Enter the IP address of the server that will receive the error information The default IP address is 0 0 0 0 Syslog Port Enter the port number that your server can be accessed by The default port number is 514 ...

Page 41: ...al but significant condition Informational Informational messages Management This section describes how to use the management and information features of your Wireless 7760 Access Point Administration In this section you can change the user administrator name and password The default Administrator name is admin case sensitive and password is password Click Apply to save changes SNMP The SNMP admin...

Page 42: ...ss Community name This function is not available in Wireless Bridge mode MAC Filtering MAC filtering allows the administrator to filter MAC addresses of w or deny r table network cards that can access the access point Enable Disable filter Change filter rule to allo Add delete MAC addresses in the filte This function is only available in AP mode ...

Page 43: ... through this device Rogue AP detection can prevent this Change Rogue AP definition Legal AP list The list of allowed access points Detect rogue AP All channels are scanned and Access Points without security or not in legal AP are considered rogue This function is only available in AP mode ...

Page 44: ...tore Settings This section allows the user back up the Access Point s current settings and restore back to the factory default Once you have the Access Point working properly you should back up the information to have it available if something goes wrong ...

Page 45: ...signed Remember to insert the correct FTP server IP address username password and corrected route to the FTP server Firmware Upgrade In this section you can see the current firmware version of your AP You can also manually upgrade your firmware by assigning the correct route to your new firmware file Once you have chosen the upgrade file click upgrade Rebooting You can reboot the Wireless access p...

Page 46: ...44 CHAPTER 3 Configuring the Wireless 7760 After rebooting the login page will automatically be displayed ...

Page 47: ...ntrol none Once connected enter the user name and password The default values are as follows Username admin Password password Once logged in type for a list of commands Restoring factory settings The Access Point can be reset to the default factory settings either through the web browser see Backup Restore Settings or manually To restore the settings manually insert a pointed object such as the en...

Page 48: ...er you restore a backup configuration or reset the Access point to factory defaults the IP address setting may be changed Solution s To recover from this situation and continue configuring the Access point 1 Close your browser 2 Return to the 3Com Wireless Infrastructure Device Manager and click Refresh 3 Select the device and click Configure to start a new configuration session and set its IP add...

Page 49: ...ccess points must match exactly Launch the Access point Configuration Management System and make sure that the Wireless LAN Service Area channel selections Data Preamble setting and security setting are the same on both Access points Symptom You are running Windows NT After you connect the Access point your computer cannot obtain a valid IP address Solution s The Access point configuration setting...

Page 50: ...on Solution s If you want to uninstall the 3Com 11a b g Wireless Workgroup Access point software and documentation you can either use the standard operating system procedure for removing programs or use the following shortcut From the Windows Start menu select Start Programs 3Com Wireless Uninstall 3Com Wireless Infrastructure Device Manager When prompted to confirm click OK Symptom Upgrading Acce...

Page 51: ...enefits To take advantage of warranty and other service benefits you must first register your product at http eSupport 3Com com 3Com eSupport services are based on accounts that are created or that you are authorized to access Solve Problems Online The 3Com Knowledge base helps you to troubleshoot 3Com products This query based interactive tool is located at http knowledgebase 3Com com It contains...

Page 52: ...the version of software that you initially purchased with your 3Com product To obtain access to this software you need to register your product and then use the Serial Number as your login Restricted Software is available at http eSupport 3Com com To obtain software releases that follow the software version that you originally purchased 3Com recommends that you buy an Express or Guardian contract ...

Page 53: ...tails about recent configuration changes if applicable To send a product directly to 3Com for repair you must first obtain a return materials authorization number RMA Products sent to 3Com without authorization numbers clearly marked on the outside of the package will be returned to the sender unopened at the sender s expense If your product is registered and under warranty you can obtain an RMA n...

Page 54: ...ions and v using the Run Time Module other than in connection with operation of the Target Application In addition the End User License Agreement shall i state that the Run Time Module is licensed not sold and that Customer and its licensors retain ownership of all copies of the Run Time Module ii expressly disclaim all implied warranties including without limitation the implied warranties of merc...

Page 55: ...te See DTIM Data Rate 32 default IP address 12 Default IP address 14 Delivery Traffic Indication Message 32 Device Manager Software 13 DHCP Server 11 DTIM 32 See Delivery Traffic Indication Message E External Antenna 10 F factory settings 48 FAT 22 Firmware 46 Firmware Upgrade 46 FIT 22 Fragment Length 33 I IAPP See Inter Access Point Protocol IEEE802 3af 5 Installation 6 Installing Software 12 In...

Page 56: ...l SNTP See Simple Network Time Protocol SSID 25 28 Suppressed SSID 26 System Properties 21 System Summary 16 T terminal settings 48 Time Slot 37 Transmit Power 32 U Username 15 48 V VLAN ID 26 VLAN Management 34 W Wall Mounting 8 WDS Security 31 WEP See Wired Equivalent Privacy Wi Fi Protected Access 27 28 Wi Fi Protected Access 2 28 Wired Equivalent Privacy 26 Wireless Client 22 Wireless Distribu...