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LOSSARY

802.11b

The IEEE specification for wireless Ethernet which allows speeds of up to 
11 Mbps. The standard provides for 1, 2, 5.5 and 11 Mbps data rates. 
The rates will switch automatically depending on range and environment.

802.11g

The IEEE specification for wireless Ethernet which allows speeds of up to 
54 Mbps. The standard provides for 6, 12, 24, 36, 48 and 54 Mbps data 
rates. The rates will switch automatically depending on range and 
environment.

10BASE-T

The IEEE specification for 10 Mbps Ethernet over Category 3, 4 or 5 
twisted pair cable.

100BASE-TX

The IEEE specification for 100 Mbps Fast Ethernet over Category 5 
twisted-pair cable. 

Access Point

An Access Point is a device through which wireless clients connect to 
other wireless clients and which acts as a bridge between wireless clients 
and a wired network, such as Ethernet. Wireless clients can be moved 
anywhere within the coverage area of the access point and still connect 
with each other. If connected to an Ethernet network, the access point 
monitors Ethernet traffic and forwards appropriate Ethernet messages to 
the wireless network, while also monitoring wireless client radio traffic 
and forwarding wireless client messages to the Ethernet LAN.

Ad Hoc mode

Ad Hoc mode is a configuration supported by most wireless clients. It is 
used to connect a peer to peer network together without the use of an 
access point. It offers lower performance than infrastructure mode, which 
is the mode the router uses. (see also Infrastructure mode.)

Auto-negotiation

Some devices in the range support auto-negotiation. Auto-negotiation is 
where two devices sharing a link, automatically configure to use the best 

Summary of Contents for OfficeConnect WL-542

Page 1: ...http www 3com com Part No DUA100A 72AAA02 Published August 2005 OfficeConnect ADSL Wireless 11g Firewall Router User Guide Model WL 542 3CRWDR100A 72 3CRWDR100B 72 3CRWDR100U 72...

Page 2: ...cumentation 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 registe...

Page 3: ...Minimum System and Component Requirements 12 Front Panel 12 Rear Panel 13 2 INSTALLING THE ROUTER Introduction 15 Safety Information 15 Positioning the Router 15 Using the Rubber Feet 16 Powering Up t...

Page 4: ...less Settings 39 Configuring Wireless 39 Encryption 40 Internet Settings 46 Connection Type 46 DNS 55 Hostname MAC 56 Firewall 57 Special Applications 58 Virtual Servers 59 Client IP Filters 60 MAC Ad...

Page 5: ...to Factory Defaults 84 Wireless Networking 85 Recovering from Corrupted Software 87 Frequently Asked Questions 88 A IP ADDRESSING The Internet Protocol Suite 89 Managing the Router over the Network 8...

Page 6: ...REEMENT E OBTAINING SUPPORT FOR YOUR PRODUCT Register Your Product 103 Purchase Value Added Services 103 Troubleshoot Online 104 Access Software Downloads 104 Telephone Technical Support and Repair 10...

Page 7: ...ote is shipped with the ADSL 11g Wireless Router and contains information that differs from the information in this guide follow the information in the release note Most user guides and release notes...

Page 8: ...aution Information that alerts you to potential loss of data or potential damage to an application system or device Warning Information that alerts you to potential personal injury Table 2 Text Conven...

Page 9: ...o not use this e mail address for technical support questions For information about contacting Technical Support please refer to Appendix E Related Documentation In addition to this guide each Router...

Page 10: ...8 ABOUT THIS GUIDE...

Page 11: ...s designed to provide a cost effective means of sharing a single broadband Internet connection amongst several wired and wireless computers The Router also provides protection in the form of an electr...

Page 12: ...you use the Router in your network Figure 2 it becomes your connection to the Internet Connections can be made directly to the Router or to an OfficeConnect Switch or Hub expanding the number of compu...

Page 13: ...network address settings DHCP Acts as a Virtual server to enable remote access to Web FTP and other services on your network Security Firewall protection against Internet hacker attacks and encryptio...

Page 14: ...ADSL subscription and connection A Web browser that supports JavaScript such as Netscape 4 7 or higher Internet Explorer 5 0 or higher or Mozilla 1 2 1 or higher Front Panel The front panel of the Ro...

Page 15: ...LED is flashing the link is OK and data is being transmitted or received If the LED is off nothing is connected or the connected device is switched off or there is a problem with the connection refer...

Page 16: ...t interface for example due to a lost password then you may use this button Refer to Forgotten Password and Reset to Factory Defaults on page 84 for further details 10 Power Switch Push this switch to...

Page 17: ...lire attentivement la section Consignes importantes de s curit avant de mettre en route Positioning the Router You should place the Router in a location that is conveniently located for connection to...

Page 18: ...er Feet Use the four self adhesive rubber feet to prevent your Router from moving around on your desk or when stacking with flat top units Only stick the feet to the marked areas at each corner of the...

Page 19: ...are using a full rate G dmt connection your service provider will attach the outside ADSL line to a data voice splitter In this case you can connect your phones and computer directly to the splitter a...

Page 20: ...18 CHAPTER 2 INSTALLING THE ROUTER Figure 6 Installing with a splitter...

Page 21: ...ate with the Internet 3Com recommends that you perform the initial Router configuration from a computer that is directly connected to one of the LAN ports If you configure the Router from a wireless c...

Page 22: ...20 CHAPTER 2 INSTALLING THE ROUTER...

Page 23: ...s follow the instructions in this chapter Obtaining an IP Address Automatically Windows 2000 If you are using a Windows 2000 based computer use the following procedure to change your TCP IP settings 1...

Page 24: ...Area Properties Screen 6 Ensure that the options Obtain an IP Address automatically and Obtain DNS server address automatically are both selected as shown in Figure 9 Click OK Figure 9 Internet Proto...

Page 25: ...7 Restart your computer Windows 98 ME 1 From the Windows Start Menu select Settings Control Panel 2 Double click on Network Select the TCP IP item for your network card and click on Properties 3 In th...

Page 26: ...similar to Figure 10 should be displayed 4 Select the Never Dial a Connection option Figure 10 Internet Properties Screen You may want to remove the PPPoE client software from your computer to free re...

Page 27: ...nsure that you have at least one computer connected to the Router Refer to Chapter 2 for details on how to do this 2 Launch your Web browser on the computer 3 Enter the following URL in the location o...

Page 28: ...ogged in either The Status screen will appear Figure 13 Select Setup Wizard from the menu or If your Router has not been configured before the Wizard will launch automatically refer to Figure 14 6 You...

Page 29: ...Select a DSL mode from the following PPPoE PPP over Ethernet providing routing for multiple PCs see page 28 PPPoA PPP over ATM providing routing for multiple PCs see page 29 Bridge Mode for a single...

Page 30: ...2 Enter your PPP over Ethernet password in the Password text box 3 Re type your PPP over Ethernet password in the Retype Password text box 4 Enter your VPI and VCI information in the VPI VCI text box...

Page 31: ...s in your area you should give your wireless network a unique name PPPoA Mode Figure 17 PPPoA Screen To set up the router for use with a PPP over ATM PPPoA connection use the following procedure 1 Ent...

Page 32: ...P 6 Check all of your settings and then click Next The Wireless Settings screen is displayed Figure 18 Wireless Settings Screen 7 Set the Wireless Channel you want to use from the Channel drop down li...

Page 33: ...LC or VC MUX in the Encapsulation drop down list This information will have been provided to you by your ISP 3 Check all of your settings and then click Next The Wireless Settings screen is displayed...

Page 34: ...he Subnet Mask text box 3 Enter the default router in the Default Gateway text box 4 Enter the DNS address in the DNS text box 5 Enter your VPI and VCI information in the VPI VCI text boxes 6 Select t...

Page 35: ...t Figure 23 Dynamic Fixed IP for Bridge Mode Screen To obtain an IP address automatically from a DHCP server Check the Get WAN IP By DCHP field and then click Next The Wireless Settings screen is disp...

Page 36: ...our area you should give your wireless network a unique name Configuration Summary Figure 25 Configuration Summary Screen When you complete the Setup Wizard a configuration summary will display Verify...

Page 37: ...t if you changed the Router LAN IP address during initial configuration use the new IP address instead When you have browsed to the Router log in using your system password default password is admin M...

Page 38: ...u can make are Change the Internal IP address of the Router The default is 192 168 1 1 Change the Subnet Mask The default is 255 255 255 0 Enable Disable the DHCP Server Function Default is ON Enabled...

Page 39: ...nt to use the Router as a DHCP Server click in the On check option 3 If you need to you can change the range of addresses given out by the Router by changing the IP Pool Start Address and IP Pool End...

Page 40: ...s network card Client Type Whether the client is connected to the Router by wired or wireless connection As you connect more devices the client list will grow to a maximum number of 253 clients From t...

Page 41: ...enable or disable the wireless section of your LAN When disabled no wireless PCs can gain access to either the Internet or other PCs on your Wired or Wireless LAN through this Router Select the requir...

Page 42: ...then displayed in a site survey and your computer can select a network By clicking disable you can block this random search and set the computer s SSID to a specific network for example WLAN This incr...

Page 43: ...ity mode WPA PSK no server WPA WiFi Protected Access provides dynamic key changes and constitutes the best security solution In a wireless network where not all devices support WPA WEP Wired Equivalen...

Page 44: ...our Router and wireless client devices to use WEP Figure 33 128 bit WEP Screen To enable 128 bit WEP 1 You can enter the 128 bit WEP key manually enter your WEP key as 13 pairs of hex digits 0 9 A F O...

Page 45: ...r the key enter the WEP key as 5 pairs of hex digits 0 9 A F Automatically generate the key enter a memorable passphrase in the Passphrase box and then click Generate to generate the hex keys from the...

Page 46: ...tion requires that a Radius server is running on the network Figure 35 WPA with RADIUS Server Screen To enable WPA with Radius server 1 Enter the IP address of the RADIUS server on your network into t...

Page 47: ...als to extend range and reach though this can affect the overall throughput of data Figure 36 Wireless WDS Settings Screen To enable wireless repeating 1 Check the Enable WDS check box 2 Enter the MAC...

Page 48: ...ection you should choose Figure 37 Internet Settings Screen There are six options available for the DSL connection mode PPPoE PPP over Ethernet providing routing for multiple PCs see page 47 PPPoA PPP...

Page 49: ...This information will have been provided to you by your ISP 5 Select the type of Quality of Service CBR UBR or VBR in the QoS field CBR constant bit rate the CBR service class is intended for real tim...

Page 50: ...he Internet Manual Start in Disconnected means that after re booting the Router the Internet connection will need to be re established manually by the user Manual Start in Connected means that after r...

Page 51: ...the QoS field CBR constant bit rate the CBR service class is intended for real time applications for example those requiring tightly constrained delay and delay variation such as voice and video appl...

Page 52: ...on Auto Triggered by Traffic means your Router will automatically connect to your ISP every time a PC needs to access the Internet Manual Start in Disconnected means that after re booting the Router...

Page 53: ...ge appears 1 Select Bridge Mode from the Protocol drop down menu 2 Enter the VPI and VCI parameters provided to you by your ISP in the VPI and VCI fields 3 Select the encapsulation type LLC or VC MUX...

Page 54: ...nter the PCR SCR MBS values 6 Click Apply Routing Mode over ATM RFC 1483 Routed Mode This mode is commonly used with either dynamic or static IP addressing In this mode the WAN ADSL port will be confi...

Page 55: ...trained delay and delay variation such as traditional computer communications applications The UBR service may be considered as best effort service VBR variable bit rate QoS class defined by the ATM F...

Page 56: ...lect the type of Quality of Service that you want from the QoS Class drop down menu CBR constant bit rate the CBR service class is intended for real time applications for example those requiring tight...

Page 57: ...nt box 8 Click Apply Disable Selecting this option means that you do not want your Router to connect to the Internet Figure 43 Disable Internet Connection Screen DNS Domain Name Service or Server an I...

Page 58: ...to enter this information into the Router If you are using a Static IP connection type you may need to enter a specific DNS address and secondary DNS address for your connection to work properly If yo...

Page 59: ...he MAC Address to the default select Reset MAC 2 Click Apply to save the settings Firewall From these pages you can configure settings for the firewall Your Router is equipped with a firewall that wil...

Page 60: ...of the Router Figure 47 Special Applications Screen A list of popular applications has been included to choose from Select your application from the Popular Applications drop down list Then select th...

Page 61: ...for services such as a web server port 80 FTP server Port 21 or other applications through your Router to your internal network Since your internal computers are protected by a firewall machines from...

Page 62: ...configured to restrict access to the Internet e mail or other network services at specific days and times Restriction can be set for a single computer a range of computers or multiple computers Acces...

Page 63: ...es to be blocked A list of popular services is given on this screen to block a particular service place a check in the appropriate Blocking check box If the service to be restricted is not listed on t...

Page 64: ...d of xxx would block access to any URL that contains the string xxx Figure 51 URL Filter Screen To complete this configuration you will need to create or modify an access rule in the Access Control se...

Page 65: ...tent Filter feature 1 Select the server that you want to use from the Content Filter Server drop down menu If the server you want to use is not listed enter the server address manually 2 Define the ti...

Page 66: ...a specific subject matter will not be filtered out if the Allow option is checked 5 Click Apply for the changes to take effect Schedule Rule The Router can be configured to restrict access to the Int...

Page 67: ...times note that all times should be in 24 hour format 4 Click Apply MAC Address Filtering The MAC Address Filter is a powerful security feature that allows you to specify which computers are allowed o...

Page 68: ...allow network access or Copy the MAC address by selecting the name of the computer from the DHCP Clients List and then in the MAC Address Filtering List click Copy To 4 Click Apply to save the setting...

Page 69: ...ress if known that will be accessing the DMZ PC into the Public IP field so that only the computer on the Internet at this address can access this PC without firewall protection If the IP address is n...

Page 70: ...57 Advanced Screen NAT NAT Before you enable NAT Network Address Translation make sure you have changed the administrator password NAT is the method by which the router shares the single IP address as...

Page 71: ...pplication that is Universal Plug and Play compliant has the ability to communicate with the Router basically telling the Router which way it needs the firewall configured The Router ships with the Un...

Page 72: ...presented in the Routing screen Routing RIP Routing Information Protocol RIP allows the network administrator to set up routing information on one RIP enabled device and send that information to all...

Page 73: ...dependently on both LAN and WAN interfaces 1 Select the RIP Mode Enable option 2 Select the appropriate option to enable or disable Auto Summary Auto Summarization sends simplified routing data to oth...

Page 74: ...a loops 6 Use the Authentication Required field to choose one of three modes of authentication None Switches off authentication on the specified interface Password An unencrypted text password that ne...

Page 75: ...c Domain Server DDNS Screen To set up Dynamic DNS 1 Select the Dynamic DNS Enable option 2 Select a DDNS Service Provider from the drop down list TZO com If you select TZO com 1 In the Domain Name tex...

Page 76: ...umn enter the name of the SNMP communication channel Your SNMP management agent needs to be configured with this name so that it can communicate with your router 2 In the Access column select Read to...

Page 77: ...el to which you want your router to send status messages 3 Set the Version field to match the version of trap messaging that your SNMP management agent supports The router supports V1 and V2c trap mes...

Page 78: ...tings click Reset Backup Restore Settings Figure 65 Backup Restore Settings Screen You can save your current configuration by clicking Save in Backup Settings Saving your configuration will allow you...

Page 79: ...ick Browse and select the firmware file Click Upgrade to upload the firmware to the Router Admin Password The Router ships with a default password of admin 3Com recommends that you change the password...

Page 80: ...eave the login session will expire You will have to login to the router again to make any more changes The login timeout option is for security purposes and the default is set to 5 minutes As a note o...

Page 81: ...elf You can specify which SNTP servers the Router will use to update it s system clock although doing this should only be necessary if you are experiencing difficulty Syslog Server Using third party s...

Page 82: ...ersion numbers for your router s software and hardware and check the status of connections to WAN LAN and WLAN interfaces Status Figure 70 Status Screen This screen shows Router status and statistics...

Page 83: ...gs Figure 73 Logs Screen This screen shows any attempts that have been made to gain access to your network as well as the system activities Click Refresh to update the display Click Clear to clear the...

Page 84: ...ck screen to obtain support and help Support Figure 74 Support Screen This screen shows support information Feedback To provide feedback to 3Com please click Provide Feedback and this will connect you...

Page 85: ...outer configuration screens check the following Confirm that the physical connection between your computer and the Router is OK and that the LAN Status LEDs on the Router and network adapter are illum...

Page 86: ...ure that you have entered the correct information into the Router configuration screens as required by your Internet Service Provider Use the Internet Settings screen to verify this Check that the PPP...

Page 87: ...outer If you have a wired and a wireless NIC in the same computer ensure that the wired NIC is disabled Check the status of the WLAN LED it should be lit if wireless is enabled and will flash when the...

Page 88: ...n 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 Router channel number Please refer to your Wi...

Page 89: ...ill need to reconfigure this computer to obtain an IP address automatically see Obtaining an IP Address Automatically on page 21 3 Restart the computer and re apply power to the Router 4 Using the Web...

Page 90: ...switches and wireless access points connected to the Router 3Com wireless access points and hubs and switches provide a simple reliable means of expanding your network contact your supplier for more...

Page 91: ...ice over the network the Router must be correctly configured with the following IP information An IP address A Subnet Mask IP Addresses and Subnet Masks Each device on your network must have a unique...

Page 92: ...e 192 168 100 identifies the network on which the device resides Part two 8 identifies the device within the network This type of IP Address operates on a subnet mask of 255 255 255 0 See Table 3 for...

Page 93: ...gets reallocated once you disconnect from the network DHCP will work on any client Operating System such as Windows 95 Windows 98 or Windows NT 4 0 Also using DHCP means that the same IP address and s...

Page 94: ...x with a subnet mask of 255 255 0 0 If two devices allocate themselves the same address the conflict is detected and one of the devices allocates itself a new address Automatic IP addressing support w...

Page 95: ...24 18 12 or 6 Mbps Maximum channels 14 Range up to 304 8m 1000ft Frequency US Canada Europe 2 400 2 4835 GHz Sensitivity 6 12 18 24 36 48 Mbps 85 dBm 54 Mbps 66 dBm typical Modulation CCK BPSK QPSK O...

Page 96: ...ns Width 220 mm 8 7 in Depth 133 mm 5 2 in Height 38 mm 1 5 in Weight Approximately 550 g 1 1 lbs Standards Functional ISO 8802 3 IEEE 802 3 IEEE 802 11b 802 11g Safety EN 60950 EMC EN 55022 Class B E...

Page 97: ...ME Windows 2000 Windows XP Mac OS 8 5 or higher Unix Ethernet Performance The Router complies to the IEEE 802 3i u and x specifications Cable Specifications The Router supports the following cable typ...

Page 98: ...96 APPENDIX B TECHNICAL SPECIFICATIONS...

Page 99: ...ARNING To ensure compliance with international safety standards only use the power adapter that is supplied with the unit WARNING The socket outlet must be near to the unit and easily accessible You c...

Page 100: ...Sie sich bei den zust ndigen Stellen ob die Verwendung von Funkfrequenz in dem Bereich in dem der Bluetooth Access Point eingesetzt werden soll erlaubt ist VORSICHT Bei der Installation und beim Ausb...

Page 101: ...signes Nous vous demandons de lire attentivement les consignes suivantes de s curit avant d installer ou de retirer l appareil AVERTISSEMENT La Router fournit et utilise de l nergie radio lectrique ra...

Page 102: ...moyeu Si vous avez un probl me physique avec le moyeu qui ne peut pas tre r solu avec les actions de la r solution des probl mes dans ce guide contacter votre fournisseur AVERTISSEMENT D branchez l a...

Page 103: ...NEERING You may transfer the Software Documentation and the licenses granted herein to another party in the same country in which you obtained the Software and Documentation if the other party agrees...

Page 104: ...f liability applicable to the Software are as stated on the Limited Warranty Card or in the product manual whether in paper or electronic form accompanying the Software Such warranties and limitations...

Page 105: ...ice Request If you have trouble registering your product please contact 3Com Global Services for assistance Purchase Value Added Services To enhance response times or extend warranty benefits contact...

Page 106: ...uct Support heading at www 3com com Software Upgrades are the feature releases that follow the software version included with your original product In order to access upgrades and related documentatio...

Page 107: ...directory of contact information posted on the 3Com Web site at http csoweb4 3com com contactus Country Telephone Number Country Telephone Number Asia Pacific Rim Telephone Technical Support and Repai...

Page 108: ...0 133 266 AT T 800 998 2112 AT T 800 998 2112 AT T 800 998 2112 57 1 592 5000 800 011 3266 AT T 800 998 2112 AT T 800 998 2112 AT T 800 998 2112 AT T 800 998 2112 AT T 800 998 2112 AT T 800 998 2112 A...

Page 109: ...Contact Us 107 US and Canada Telephone Technical Support and Repair 1 800 876 3266 Country Telephone Number Country Telephone Number...

Page 110: ...108 APPENDIX E OBTAINING SUPPORT FOR YOUR PRODUCT...

Page 111: ...er wireless clients and which acts as a bridge between wireless clients and a wired network such as Ethernet Wireless clients can be moved anywhere within the coverage area of the access point and sti...

Page 112: ...bps Category 5 cabling is better to use for network cabling than Category 3 because it supports both Ethernet 10 Mbps and Fast Ethernet 100 Mbps speeds Channel Similar to any radio device the Wireless...

Page 113: ...d into the router and each of it s wireless clients Ethernet A LAN specification developed jointly by Xerox Intel and Digital Equipment Corporation Ethernet networks use CSMA CD to transmit packets at...

Page 114: ...ided into two or three fields a network number and a host number or a network number a subnet number and a host number IP Address Internet Protocol Address A unique identifier for a device attached to...

Page 115: ...collection of computers and other computer equipment that are connected for the purpose of exchanging information or sharing resources Networks vary in size some are within a single room others span c...

Page 116: ...as opposed to valid IP address numbers recognized by the Internet which must assigned by InterNIC Subnets A network that is a component of a larger network Switch A device that interconnects several L...

Page 117: ...though this can affect the overall throughput of data WECA Wireless Ethernet Compatibility Alliance An industry group formed to certify cross vendor interoperability and compatibility of 802 11b and...

Page 118: ...LAN 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 A dynamically changing encryption mechanism for w...

Page 119: ...ntial installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio commun...

Page 120: ...ndows to provide maximum shielding Equipment or its transmit antenna that is installed outdoors is subject to licensing Pour empecher que cet appareil cause du brouillage au service faisant l objet d...

Page 121: ...rungen und den anderen relevanten Vorschriften der Richtlinie 1999 5 EG befindet BMWi Hiermit erkl rt 3Com Corporation die bereinstimmung des Ger tes RLAN device mit den grundlegenden Anforderungen un...

Page 122: ...onal spectrum authority to operate this device outdoors In Belgium outdoor operation is only permitted using the 2 46 2 4835 GHz band Channel 13 In France outdoor operation is only permitted using the...

Page 123: ...icons About This Guide 8 text About This Guide 8 D DDNS 70 DHCP 87 DHCP Clients List 42 DHCP server 25 42 disabling 26 DMZ Screen 67 DNS 24 DNS Screen 55 DSL mode 29 Dynamic Domain Server DDNS Screen...

Page 124: ...ng Table Screen 59 S Schedule Rule Screen 65 Setup Wizard 27 SNMP Community Screen 71 SNMP Trap Screen 72 Special Applications Screen 60 Specifications technical 89 SSID 31 32 33 35 36 43 Static Addre...

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