3Com 3CRWE825075A - Manuals

8 need to consider AC power outlet locations. PoE support makes it easier than ever to overcome installation problems with difficult-to-wire or hard-to-reach locations. W IRELESS N ETWORK S TANDARDS Understanding the characteristics of the 802.11g and 802.11a standards can help you make the best cho...

9 n Supporting a dense user base confined to a small coverage area. Because 802.11a has a greater number of non-overlapping channels, you can pack more access points in a tighter space. N ETWORK C ONFIGURATION AND P LANNING The wireless solution supports a stand-alone wireless network configuration ...

10 The infrastructure configuration not only extends the accessibility of wireless PCs to the wired LAN, but also increases the effective wireless transmission range for wireless PCs by passing their signal through one or more access points. A wireless infrastructure can be used for access to a cent...

11 T ERMINOLOGY Access Point —An internetworking device that seamlessly connects wired and wireless networks. Ad Hoc —An ad hoc wireless LAN is a group of computers, each with LAN adapters, connected as an independent wireless LAN. Backbone —The core infrastructure of a network. The portion of the n...

13 2 I NSTALLING THE A CCESS P OINT 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, this product must be installed by a professional technician/installer. I NSTALLATION R EQUIREMENT...

15 D ECIDING W HERE TO P LACE E QUIPMENT AND P ERFORMING A S ITE S URVEY The access point is ideally designed for vertical installation on a wall surface, but can also be flat-surface mounted in an elevated location where it will not be disturbed. Ceiling installation is not recommended. Whether you...

16 B EFORE Y OU B EGIN 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 back of the access point housing. The following illustration shows the front and rear views of the access point, including th...

17 1 Carefully unpack the standard detachable antennas. 2 Screw an antenna into each of the sockets in the access point housing. 3 Hand-tighten the antennas at the very base of the SMA connectors without handling the antenna tips. 4 Access Point 8250 and Access Point 8750: Position the antennas so t...

18 n 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 not been altered in...

19 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). U SING A P OWER -O VER -E THERNET LAN P ORT If your LAN equipment complies with the ...

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. F LAT S URFACE I NSTALLATION The access point can also be placed on a flat surface such as a table, desktop or filing cabinet. Do not install the...

23 ensure a strong signal. Ensure that access 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 antenna, making sure not to handle the tips of the antenna. 3 Connect one end of the optional antenna ca...

24 I NSTALLING S OFTWARE U TILITIES The installation CD includes documentation and software utilities to help you set up and administer the wireless components of your network. To view product documentation, select View the Documentation from the CD Startup Menu and then select the item you wish to ...

25 3 S YSTEM C ONFIGURATION The access point can be configured using a Web browser that has Java support (Internet Explorer 5.0 or newer). Using the Web management interface, you can configure the access point and view statistics to monitor network activity. The 3Com Wireless Infrastructure Device M...

26 exclamation points (!). You can refresh this display by clicking Refresh . You should refresh the display, for example, after you change a device IP address. 2 In the Wireless Network Tree, select the device you want to configure.If more than one wireless LAN device appears in the tree and you ar...

27 U SING THE P RE -IP C ONFIGURATION W IZARD 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 setti...

29 A DVANCED S ETUP The Advanced Setup pages allow you to configure features that are not available in the basic setup. On the Home page, click Advanced Setup to open the Advanced Setup menu. After making selections and entering data on each page, click Apply to save the changes. The following secti...

30 address of one or more domain name servers. Enter those addresses in Primary DNS Address and Secondary DNS Address fields. S ECURE W EB S ERVER C ONNECTION This option controls whether Secure Socket Layer (SSL) technology is used to encrypt information between the computer and the device during a...

31 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...

33 n Local MAC Authentication —Client computers can be filtered using the unique MAC addresses of their network cards. To build the MAC Authentication Table, enter a MAC address in the space provided, choose the permission, and click Update. MAC addresses are listed in the MAC Authentication Table i...

34 F ILTERING 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 servers specified on the RADIUS configuration page. If a RADIUS server is not being used or not setup to update t...

35 C LIENT L IST T IMEOUT This option sets the timeout for inactive clients to be disassociated and removed from the associated client list. The interval can be set to 1, 5, 10, 30 or 60 minutes (default is 30 minutes). U PLINK P ORT MAC A DDRESS F ILTERING This feature allows associated wireless cl...

36 Although there are five types of IPX packets, the Filter Control page shows only two options for IPX filtering. The following table shows how to filter each IPX packet type: SNMP Use the SNMP page to display and enter a community string for the Simple Network Management Protocol. To communicate w...

38 S YSTEM L OG The System Log page allows you to set 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 sev...

39 n Stations Status —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. n Event Logs —Click Event Logs to display the activit...

40 n Auto Channel Select (802.11g and 802.11a only) —Select Auto Channel Select Enable to allow the access point to select a radio channel automatically. (Default: Enable) n Transmit Power (802.11g and 802.11a only) —Set the signal strength transmitted from the access point. The longer the transmiss...

41 synchronize to the incoming data stream. Enabling the Short preamble can boost your throughput; however, this can cause interoperability issues. (Default: Long) n Client Access Mode (802.11g only) —802.11g radios can support both 802.11b and 802.11g clients. This option determines which mode the ...

42 There must be at least one entry in the User Access List, which determines the users that can associate with the access point. Click Edit User Access List. In the User Access List page, user names are listed. Scroll to the bottom of the list to perform the following actions:To add a new user, cli...

43 WEP—Provides standard WEP ciphering (Least Secure) 3 Select the type of WPA Key Management:WPA authentication over 802.1x (More secure, but requires a RADIUS authentication server setup. See WPA note below ) WPA Pre-shared Key (PSK) ( see WPA note below ) 4 Select the Key Type:Hexadecimal (0~9, A...

44 The key selected as the transmit key index is used by the access point for all transmissions. Other keys defined can be used by the access point for decrypting station communications. When enabling 802.1x security with dynamic session keys, key index 4 is reserved for the 802.1x client session ke...

45 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:...

47 c Click on Apply . 6 Click Security on the 802.11a/b/g radio from the left frame page Menu. 7 Make sure the following settings are set from the Security page: a Authentication is set to Open System. b Encryption is Enabled. c WPA Configuration is Checked to “Allow only WPA Clients”. d Cipher Mode...

49 4 T ROUBLESHOOTING If you have difficulty with the 3Com Wireless LAN access point, first check the following items in the configuration: n Radio Settings page: Ensure that the SSID is the same on clients and the access point. n Security page: Ensure that Encryption is the same on clients and the ...

52 A T ECHNICAL S UPPORT O BTAINING S UPPORT FOR YOUR P RODUCT R EGISTER Y OUR P RODUCT TO G AIN S ERVICE B 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 you crea...

54 Country Telephone Number Country Telephone Number Asia, Pacific Rim Telephone Technical Support and Repair Australia Hong Kong India Indonesia Japan Malaysia New Zealand Pakistan 1 800 678 515 800 933 486 +61 2 9424 5179 or 000800 650 1111 001 803 61009 00531 616 439 or 03 5977 7991 1800 801 777 ...

55 Latin America: Telephone Technical Support and Repair. You can obtain support in this region using the following URLs: 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 spe...

I NDEX Numbers 3Com 3CDaemon Server Tool 24 3Com Network Supervisor 243Com Passphrase encryption 443Com Wireless Infrastructure Device Manager 24, 25 802.11a, turbo mode 39802.1x reauthentication refresh rate 33802.1x setup 32 A access control, 42access point installation 13IP address, troubleshooti...