- DL manuals
- 3Com
- Wireless Access Point
- OfficeConnect 3CRWE454A72
- User Manual
3Com OfficeConnect 3CRWE454A72 User Manual
Summary of OfficeConnect 3CRWE454A72
Page 1
Http://www.3com.Com/ part no. Dua0045-4aaa02 rev. 01 published november 2003 officeconnect ® wireless 11a/b/g access point user guide 3crwe454a72.
Page 2
3com corporation 350 campus drive, marlborough, ma 01752-3064 copyright © 2003, 3com corporation. All rights reserved. No part of this documentation may be reproduced in any form or by any means or used to make any derivative work (such as translation, transformation, or adaptation) without written ...
Page 3: Ontents
C ontents a bout t his g uide naming convention 7 conventions 8 feedback about this user guide 8 related documentation 9 product registration 9 1 i ntroducing the a ccess p oint officeconnect wireless 11g access point 12 access point advantages 13 package contents 13 minimum system and component req...
Page 4: Ip A
Main menu 29 status page 30 wizard 31 lan settings 32 32 wireless settings 33 wireless 33 encryption 35 configuring encryption 36 configuring wpa encryption 37 configuring wep encryption 38 access control 39 802.1x authentication 41 wds (wireless distributed system) 42 password 43 system tools 44 re...
Page 5
Ip addresses and subnet masks 57 how does a device obtain an ip address and subnet mask? 59 dhcp addressing 59 static addressing 59 auto-ip addressing 59 c t echnical s pecifications standards 62 d s afety i nformation e e nd u ser s oftware l icense a greement g lossary i ndex r egulatory n otices ...
Page 7: Bout
A bout t his g uide this guide describes how to install and configure the officeconnect wireless 11a/b/g access point (3crwe454a72). This guide is intended for use by those responsible for installing and setting up network equipment; consequently, it assumes a basic working knowledge of lans (local ...
Page 8
8 a bout t his g uide conventions table 1 and table 2 list conventions that are used throughout this guide. Feedback about this user guide your suggestions are very important to us. They will help make our documentation more useful to you. Please e-mail comments about this document to 3com at: pddte...
Page 9
Conventions 9 example: ■ officeconnect wireless 11a/b/g access point user guide ■ part number dua0045-4aaa02 ■ page 24 do not use this e-mail address for technical support questions. For information about contacting technical support, please refer to the support and safety information sheet. Related...
Page 10
10 a bout t his g uide.
Page 11: Ntroducing
1 i ntroducing the a ccess p oint welcome to the world of networking with 3com ® . In the modern business environment, communication and sharing information is crucial. Computer networks have proved to be one of the fastest modes of communication but, until recently, only large businesses could affo...
Page 12
12 c hapter 1: i ntroducing the a ccess p oint officeconnect wireless 11g access point the officeconnect wireless 11a/b/g access point is designed to provide a cost-effective means of connecting wired and wireless networks. A single access point makes the internet, e-mail and network resources, such...
Page 13
Access point advantages 13 access point advantages the advantages of the access point include: ■ cross-platform operation for compatibility with windows, unix and macintosh computers ■ easy-to-use, web-based setup and configuration ■ shared network resources between both wired and wireless computers...
Page 14
14 c hapter 1: i ntroducing the a ccess p oint minimum system and component requirements your access point requires that the computer(s) and components in your network be configured with at least the following: ■ a computer with an operating system that supports tcp/ip networking protocols (for exam...
Page 15
Front panel 15 in each of these cases, wait until the access point has completed the current operation and the alert led is off. Flashing slowly - the access point has completed the reset to factory defaults process, and is waiting for you to release the reset button. The access point will then ente...
Page 16
16 c hapter 1: i ntroducing the a ccess p oint rear panel the rear panel ( figure 3 ) of the access point contains one lan port, a reset button, a power adapter ok led and a power adapter socket. Figure 3 access point - rear panel 5 wireless antennae the antennae on the product should be placed in a...
Page 17: Ardware
2 h ardware i nstallation introduction this chapter will guide you through a basic installation of the access point, including: ■ connecting the access point to your network. ■ setting up your computers for networking with the access point. Safety information warning: please read the “safety informa...
Page 18
18 c hapter 2: h ardware i nstallation when positioning your access point, ensure: ■ it is out of direct sunlight and away from sources of heat. ■ cabling is away from power lines, fluorescent lighting fixtures, and sources of electrical noise such as radios, transmitters and broadband amplifiers. ■...
Page 19
Powering up the access point 19 powering up the access point to power up the access point: 1 plug the power adapter into the power adapter socket located on the back panel of the access point. 2 plug the power adapter into a standard electrical wall socket. Connecting the access point the first step...
Page 20
20 c hapter 2: h ardware i nstallation.
Page 21: Unning
3 r unning the s etup w izard accessing the wizard 3com recommends that you perform the initial access point configuration from a computer that is directly connected to the lan port and not from a wireless connection. If, however, you do configure the access point from a wireless admin computer do n...
Page 22
22 c hapter 3: r unning the s etup w izard figure 5 discovery welcome screen 3 when the welcome screen is displayed, select the nic from which the access point will be discovered. Then click on next and wait until the application discovers the access points connected to your lan. Figure 6 discovered...
Page 23
Accessing the wizard 23 figure 7 discovery finish screen 5 click on finish to launch a web browser and display the login page for the access point as shown in figure 8 . 6 to log in, enter the password (the default setting is admin) in the system password field and click log in ( figure 8 ). Figure ...
Page 24
24 c hapter 3: r unning the s etup w izard 7 if the password is correct, the country & mode selection screen appears. ( figure 9 ) 8 select the country in which the access point is to operate. The country selection screen is only displayed on initial configuration of the access point. Figure 9 count...
Page 25
Accessing the wizard 25 figure 10 welcome screen figure 11 setup wizard.
Page 26
26 c hapter 3: r unning the s etup w izard 1 select channels for the access point to use or auto if you want the access point to choose an unused channel on start-up. 2 enter a service area name/ssid. The service area name default for 3com products is “3com”. Up to 32 (case sensitive) characters can...
Page 27
Accessing the wizard 27 lan settings figure 12 lan settings screen this screen determines how the access point obtains its ip address. There are three options. Obtain ip address automatically - the access point will obtain an ip address from a dhcp server already operating on your network. Specify a...
Page 28
28 c hapter 3: r unning the s etup w izard.
Page 29: Ccess
4 a ccess p oint c onfiguration navigating through the access point configuration pages this chapter describes all the screens available through the access point configuration pages, and is provided as a reference. To get to the configuration pages, browse to the access point by entering the url in ...
Page 30
30 c hapter 4: a ccess p oint c onfiguration status page figure 13 access point status screen the status section allows you to view the ip address of the unit, firmware version, wireless clients and security log..
Page 31
Status page 31 wizard figure 14 wizard screen click wizard... To launch the configuration wizard. Refer to chapter 3 for information on how to run the wizard..
Page 32
32 c hapter 4: a ccess p oint c onfiguration lan settings the lan settings menu provides the following options: the lan settings screen is used to determine how the lan ip address of your access point is obtained. It can be obtained automatically (dynamic ip) or you can manually configure the ip add...
Page 33
Wireless settings 33 manually setting the ip address 3com recommends that you assign your access point a static ip address. 1 select lan and then select static ip address (to be specified manually). The screen shown in figure 16 is displayed. Figure 16 unit configuration screen for static ip address...
Page 34
34 c hapter 4: a ccess p oint c onfiguration channel selection the channel selectors allow you to specify which channels the access point will transmit and receive on. If another access point nearby is using the same channels as you, there will be a reduction in the performance of your network. If t...
Page 35
Wireless settings 35 may also be referred to as “essid” depending on your networking vendor. By default the access point uses the name “3com”. 3com recommends that you change the default name. In order that your wireless computers can connect to the access point, you must: ■ use infrastructure mode ...
Page 36
36 c hapter 4: a ccess p oint c onfiguration ■ wep — wireless equivalent privacy (wep) is a 64 bit or 128 bit encryption method with user configurable fixed keys. Wpa provides a higher level of security, provided by its longer key and dynamic changes made to the key over time. 3com recommends that y...
Page 37
Wireless settings 37 configuring wpa encryption the only configuration that is needed for wpa is to enter the pre-shared key. This key is used to start the dialog between the access point and the client. During this dialog, a new key is agreed, making it more difficult to eavesdrop on wireless netwo...
Page 38
38 c hapter 4: a ccess p oint c onfiguration 4 click apply to generate the key. If 802.1x authentication is to be used please see 802.1x authentication section. Configuring wep encryption there are two levels of wep encryption available, 64 bit (sometimes referred to as 40 bit) and 128 bit. 128 bit ...
Page 39
Wireless settings 39 ■ manual key entry - this method allows you to manually enter hex keys. Virtually all manufacturers support this scheme. Hexadecimal numbers are formed from 0-9 and a-f. Enter 10 or 26 digits depending on whether you are using 64 0r 128 bit wep respectively. ■ passphrase - this ...
Page 40
40 c hapter 4: a ccess p oint c onfiguration figure 21 connection control screen a higher level of security can be achieved for your wireless network if you use both encryption and you specify only certain wireless computers can connect to the access point. By default, any wireless computer that has...
Page 41
Wireless settings 41 deleting a mac address the connection rights for a wireless pc listed in the table can be removed by deleting that entry in the table. Once an entry has been deleted it cannot be undone. Please wait 30 seconds for changes to take effect. 802.1x authentication figure 22 802.1x in...
Page 42
42 c hapter 4: a ccess p oint c onfiguration wds (wireless distributed system) figure 23 wds wds allows you to make a completely wireless infrastructure. Normally, the access points must be connected to the lan with a wire. The wds feature allows the access points to be wirelessly connected to the l...
Page 43
Wireless settings 43 password figure 24 password screen changing the administration password you can change the password to prevent unauthorized access to the administration system. To do this: 1 enter the current password in the current password field 2 enter the new password in the new password fi...
Page 44
44 c hapter 4: a ccess p oint c onfiguration system tools reboot figure 25 reboot screen if your access point is not operating correctly, you can choose to restart the access point by selecting reboot the access point and then clicking apply, simulating the effect of power cycling the unit. No confi...
Page 45
System tools 45 configuration tools figure 26 configuration tools screen select the configuration tab to display the configuration screen ( figure 26 ). Backup configuration select backup to save the current access point configuration. You will be prompted to download and save a file to disk. Restor...
Page 46
46 c hapter 4: a ccess p oint c onfiguration restart your computer to re-establish communication with the access point. Firmware upgrade figure 27 firmware upgrade screen the upgrade facility allows you to install on the access point any new releases of system software that 3com may make available. ...
Page 47
System tools 47 upgrade procedure; if you do, the software may be corrupted and the access point may not start up properly afterwards. If the alert led comes on continuously after a failed upgrade, refer to chapter 5 , “troubleshooting” ..
Page 48
48 c hapter 4: a ccess p oint c onfiguration.
Page 49: Roubleshooting
5 t roubleshooting basic connection checks ■ check that the access point is connected to your switch or hub and that all the equipment is powered on. Check that the lan port link status led on the access point are illuminated, and that any corresponding leds are also illuminated. ■ ensure that the c...
Page 50
50 c hapter 5: t roubleshooting ■ when entering the address of the access point into your web browser, ensure that you use the full url including the http:// prefix (e.G. Http://192.168.1.1). ■ if you cannot browse to the access point, re-run the discovery software described in appendix a to discove...
Page 51
Wireless networking 51 ■ verify that your wireless computers are configured to work in infrastructure mode and not ad hoc mode. The access point is designed to operate in infrastructure mode. Ad hoc mode is not supported by the access point. ■ if you have a wired and wireless nic in the same compute...
Page 52
52 c hapter 5: t roubleshooting access point then try initiating a search manually if the client software supports this feature or manually set the channel on your wireless computer to correspond to the access point channel number. Please refer to your wireless computer adapter documentation and ven...
Page 53
Frequently asked questions 53 ensure that one of your computers has a copy of the new software image file stored on its hard disk or available on cd-rom. The latest software is available on 3com’s web site at: www.3com.Com. 1 remove power from the access point and connect the admin computer to the l...
Page 54
54 c hapter 5: t roubleshooting where can i download software upgrades for the access point? Upgrades to the access point software are posted on the 3com support web site, accessible by visiting: http://www.3com.Com . What other online resources are there? The 3com knowledgebase at: http://knowledge...
Page 55: Sing
A u sing d iscovery running the discovery application 3com provides a user friendly discovery application for detecting the access point on the network. If you are unable to use the discovery application, the access point on initial power-up will attempt to obtain an ip address from your local dhcp ...
Page 56
56 a ppendix a: u sing d iscovery 2 when the welcome screen is displayed, select the nic from which the access point will be discovered. Then click on next and wait until the application discovers the access points connected to your lan. Figure 14 discovered access point screen 3 figure 14 shows an ...
Page 57: Ip A
B ip a ddressing the internet protocol suite the internet protocol suite consists of a well-defined set of communications protocols and several standard application protocols. Transmission control protocol/internet protocol (tcp/ip) is probably the most widely known and is a combination of two of th...
Page 58
58 a ppendix b: ip a ddressing for your network to work correctly, all devices on the network must have: ■ the same sub-network address. ■ the same subnet mask. The only value that will be different is the specific host device number. This value must always be unique. An example ip address is ‘192.1...
Page 59
How does a device obtain an ip address and subnet mask? 59 this type of ip address operates on a subnet mask of ‘255.255.0.0’. See table 4 for an example about how a network (only four computers represented) and a access point might be configured. Table 4 ip addressing and subnet masking how does a ...
Page 60
60 a ppendix b: ip a ddressing.
Page 61: Echnical
C t echnical s pecifications this section lists the technical specifications for the officeconnect wireless 11g access point. Wireless 11g access point interfaces lan connection - 10mbps/100mbps dual speed ethernet port (10base-t/100base-tx) wlan interfaces standard ieee 802.11a, orthogonal frequenc...
Page 62
62 a ppendix c: t echnical s pecifications 54 mbps -66 dbm typical modulation: cck, bpsk, qpsk, ofdm encryption: 40/64 bit wep, 128 bit wep, 256 bit wpa maximum clients: 128 o/p power: 18dbm standard ieee 802.11b, direct sequence spread spectrum (dsss) transmission rate: 11bps, automatic fallback to...
Page 63
63 iec 60950 en 60950 emc: en 55022 class b en 55024 cispr 22 fcc part 15 class b* ices-003 class b cns 13438 class a etsi en 301 489–17 radio cfr 47 fcc part 15.207, 15.209, 15.247 and 15.249. Ets 300 328 (2.4 ghz ism band wide band transmission systems. Rss-210 environmental: en 60068 (iec 68) *se...
Page 64
64 a ppendix c: t echnical s pecifications cable specifications the access point supports the following cable types and maximum lengths: ■ category 3 (ethernet) or category 5 (fast ethernet or dual speed ethernet) twisted pair — shielded and unshielded cable types. ■ maximum cable length of 100m (32...
Page 65: Afety
D s afety i nformation important safety information warning: warnings contain directions that you must follow for your personal safety. Follow all directions carefully. You must read the following safety information carefully before you install or remove the unit: warning: the access point generates...
Page 66
66 a ppendix d: s afety i nformation warning: disconnect the power adapter before moving the unit. Warning: rj-45 ports. These are shielded rj-45 data sockets. They cannot be used as telephone sockets. Only connect rj-45 data connectors to these sockets. Wichtige sicherheitshinweise vorsicht: warnhi...
Page 67
67 vorsicht: es sind keine von dem benutzer zu ersetzende oder zu wartende teile in dem gerät vorhanden. Wenn sie ein problem mit dem access point haben, das nicht mittels der fehleranalyse in dieser anleitung behoben werden kann, setzen sie sich mit ihrem lieferanten in verbindung. Vorsicht: vor de...
Page 68
68 a ppendix d: s afety i nformation avertissement: l’appareil fonctionne à une tension extrêmement basse de sécurité qui est conforme à la norme cei 60950. Ces conditions ne sont maintenues que si l'équipement auquel il est raccordé fonctionne dans les mêmes conditions. Avertissement: il n’y a pas ...
Page 69: Ser
E e nd u ser s oftware l icense a greement 3com corporation end user software license agreement you should carefully read the following terms and conditions before downloading, installing and using this product, the use of which is licensed by 3com corporation ("3com") to its customers for their use...
Page 70
70 a ppendix e: e nd u ser s oftware l icense a greement and developed solely at private expense. The software is delivered as "commercial computer software" as defined in dfars 252.227-7014 (june 1995) or as a commercial item as defined in far 2.101(a) and as such is provided with only such rights ...
Page 71: Lossary
G lossary 802.11a the ieee specification for wireless ethernet which allows speeds of up to 54 mbps in the 5ghz range. The standard provides for 6, 12, 24, 36, 48 and 54 mbps data rates. The rates will switch automatically depending on range and environment 802.11b the ieee specification for wireles...
Page 72
72 g lossary access point. It offers lower performance than infra-structure mode, used by the access point. (see also infra-structure mode.) auto-negotiation some devices in the officeconnect range support auto-negotiation. Auto-negotiation is where two devices sharing a link, automatically configur...
Page 73
G lossary 73 the dhcp server software that runs on windows nt server, and windows 95 and windows 98 will call the server to obtain the address. Windows 98 will allocate itself an address if no dhcp server can be found. Dns server address dns stands for domain name system, which allows internet host ...
Page 74
74 g lossary hub a device that regenerates lan traffic so that the transmission distance of that signal can be extended. Hubs are similar to repeaters, in that they connect lans of the same type; however they connect more lans than a repeater and are generally more sophisticated. Ieee institute of e...
Page 75
G lossary 75 mac media access control. A protocol specified by the ieee for determining which devices have access to a network at any one time. Mac address media access control address.Also called the hardware or physical address. A layer 2 address associated with a particular network device. Most d...
Page 76
76 g lossary subnets a network that is a component of a larger network. Switch a device that interconnects several lans to form a single logical lan that comprises of several lan segments. Switches are similar to bridges, in that they connect lans of a different type; however they connect more lans ...
Page 77
G lossary 77 wizard a windows application that automates a procedure such as installation or configuration. Wlan wireless local area network. A wlan is a group of computers and devices connected together by wireless in a relatively small area (such as a house or office). Wpa wi-fi protected access. ...
Page 78
78 g lossary.
Page 79: Ndex
I ndex a access 13 addresses ip 57 administration password 25, 43 automatic addressing 59 c cable specifications 64 channels 81 configuration backup 45 restore 45 conventions notice icons, about this guide 8 text, about this guide 8 country selection 24 d dhcp 59 discovery application 55 f forgotten...
Page 80
80 i ndex authorised pcs 40 channel selection 34 configuration 33 connection control 39 encryption 35 led 15 networking 50 nic 14 service area name 34 settings 33.
Page 81: Egulatory
R egulatory n otices for the w ireless 11 g a ccess p oint channels use of the wireless 11g access point is only authorized for the channels approved by each country. For proper installation, login to the management interface and select your country from the drop down list. Table 5 below details the...
Page 82
82 information to the user if this equipment does cause interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: ■ reorient the receiving antenna. ■ ...
Page 83
83 exposure to radio frequency radiation: the radiated output power of the 3com officeconnect wireless 11g access point is far below the fcc radio frequency exposure limits. Nevertheless, the 3com officeconnect wireless 11g access point shall be used in such manner that the potential for human conta...
Page 84
84 rf exposure compliance statement (u.S.) caution: the 3com officeconnect wireless 11g access point has been certified as a mobile computing device as per fcc section 2.1091. In order to comply with the fcc rf exposure requirements, the 3com officeconnect wireless cable/dsl gateway must only be ins...
Page 86
3com corporation, corporate headquarters, 5500 great america parkway, santa clara, ca 95052-8145, usa. To learn more about 3com products and services, visit our world wide web site at www.3com.Com all specifications are subject to change without notice. Copyright © 2003 3com corporation. All rights ...