3Com 3CRWE754G72-A User Manual

3com wireless firewall router user's guide
Table of Contents

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OfficeConnect ADSL Wireless 11g
Firewall Router

User Guide

3CRWE754G72-A
3CRWE754G72-B
WL-540A
WL-540B
http://www.3com.com/
Part No. DUA-0075-4AAA01
Rev. 01
Published January 2004

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Table of Contents
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Summary of Contents for 3Com 3CRWE754G72-A

  • Page 1: Officeconnect Adsl Wireless 11G Firewall Router

    OfficeConnect ADSL Wireless 11g Firewall Router User Guide 3CRWE754G72-A 3CRWE754G72-B WL-540A WL-540B http://www.3com.com/ Part No. DUA-0075-4AAA01 Rev. 01 Published January 2004...
  • Page 2 3Com Corporation reserves the right to revise this documentation and to make changes in content from time USA 01752-3064 to time without obligation on the part of 3Com Corporation to provide notification of such revision or change. 3Com Corporation provides this documentation without warranty, term, or condition of any kind, either implied or expressed, including, but not limited to, the implied warranties, terms or conditions of merchantability, satisfactory quality, and fitness for a particular purpose.
  • Page 3: Table Of Contents

    ONTENTS BOUT UIDE Naming Convention Conventions Feedback about this User Guide Related Documentation NTRODUCING THE OfficeConnect ADSL Wireless11g Firewall Router Router Advantages Package Contents Minimum System and Component Requirements Front Panel Rear Panel ARDWARE NSTALLATION Introduction Safety Information Positioning the Router Using the Rubber Feet Powering Up the Router Connecting the Router...
  • Page 4 UNNING THE ETUP Accessing the Wizard DSL Settings Summary OUTER ONFIGURATION Navigating Through the Router Configuration Pages Main Menu Status Screen Status LAN Setup LAN Settings DHCP Clients List Wireless Configuring Wireless Encryption Disabled WPA-PSK (no server) 128-bit WEP 64-bit WEP WPA (with RADIUS Server) Internet Settings Connection Type...
  • Page 5 Access Control URL Blocking Schedule Rule MAC Address Filtering Advanced SNMP SNMP Community SNMP Trap System Tools Restart Router Reset to Factory Default Backup/Restore Settings Upgrade Admin Password Time and Time Zone Status and Logs ADSL Status Logs ROUBLESHOOTING Basic Connection Checks Browsing to the Router Configuration Screens Connecting to the Internet Forgotten Password and Reset to Factory Defaults...
  • Page 6 ECHNICAL PECIFICATIONS OfficeConnect ADSL Wireless 11g Firewall Router Standards AFETY NFORMATION OFTWARE BTAINING UPPORT FOR YOUR Register Your Product to Gain Service Benefits Purchase Value-Added Services Troubleshoot Online Access Software Downloads Contact Us Telephone Technical Support and Repair LOSSARY NDEX EGULATORY OTICES FOR THE IRELESS...
  • Page 7: About This Guide

    Most user guides and release notes are available in Adobe Acrobat Reader Portable Document Format (PDF) on the 3Com World Wide Web site: http://www.3com.com...
  • Page 8: Conventions

    Feedback about this Your suggestions are very important to us. They will help make our User Guide documentation more useful to you. Please e-mail comments about this document to 3Com at: pddtechpubs_comments@3com.com Please include the following information when commenting: ■...
  • Page 9: Related Documentation

    Example: OfficeConnect ADSL Wireless 11g Firewall Router User Guide ■ Part Number DUA0075-4AAA01 ■ 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 In addition to this guide, each Router document set includes one Documentation...
  • Page 10 BOUT UIDE...
  • Page 11: Introducing The

    Welcome to the world of networking with 3Com 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 afford the networking advantage.
  • Page 12 1: I HAPTER NTRODUCING THE OUTER Figure 1 Example Network Without a Gateway When 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 computers you can have in your network.
  • Page 13: Router Advantages

    Router Advantages The advantages of the Router include: ■ ■ ■ ■ ■ ■ ■ ■ Package Contents The Router kit includes the following items: ■ ■ ■ ■ ■ ■ ■ ■ If any of these items are missing or damaged, please contact your retailer. Shared Internet connection for both wired and wireless computers High speed 802.11g wireless networking No need for a dedicated, “always on”...
  • Page 14: Minimum System And Component Requirements

    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. Power SYNC Online WLAN Green = Link, Flash = Activity 3CRWE754G72-A LAN Status OfficeConnect ADSL Wireless 11g Firewall Router...
  • Page 15: Rear Panel

    If this LED illuminates successful Username/Password has been authenticated with your ISP. 4 Wireless LAN (WLAN) Status LED Green If the LED is on it indicates that wireless networking is enabled. If the LED is flashing, the link is OK and data is being transmitted or received. If the LED is off, the Wireless LAN has been disabled in the Router, or there is a problem.
  • Page 16 1: I HAPTER NTRODUCING THE example, a hub or a switch). These ports have an automatic MDI/MDIX feature, which means either straight-through or a crossover cable can be used. 8 Reset Button If you want to reset your Router to factory default settings, and cannot access the web management interface (for example, due to a lost password), then you may use this button.
  • Page 17: Hardware Installation

    Introduction This chapter will guide you through a basic installation of the Router, including: ■ ■ ■ Safety Information WARNING: Please read the before you start. VORSICHT: Bitte lesen Sie den Abschnitt sorgfältig durch, bevor Sie das Gerät einschalten. AVERTISSEMENT: Veuillez lire attentivement la section importantes de sécurité”...
  • Page 18: Using The Rubber Feet

    Water or moisture cannot enter the case of the unit. Air flow around the unit and through the vents in the side of the case is not restricted. 3Com recommends you provide a minimum of 25 mm (1 in.) clearance.
  • Page 19 Figure 5 Connecting the Gateway Power Supply Unit ADSL 11g Wireless Router Your PC 3 Run the provided telephone cable from the wall jack providing ADSL service to the ADSL port on your ADSL Router. When inserting an ADSL RJ-11 plug, be sure the tab on the plug clicks into position to ensure that it is properly seated.
  • Page 20 2: H HAPTER ARDWARE NSTALLATION Figure 6 Installing with a splitter If you are using a splitterless (G.lite) connection, then your service provider will attach the outside ADSL line directly to your phone system.In this case you can connect your phones and computer directly to the incoming ADSL line, but you will have to add low-pass filters to your phones as shown below (Figure...
  • Page 21 Router to communicate 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.
  • Page 22 2: H HAPTER ARDWARE NSTALLATION...
  • Page 23: Setting

    The Router has the ability to dynamically allocate network addresses to the computers on your network, using DHCP. However, your computers need to be configured correctly for this to take place. To change the configuration of your computers to allow this, follow the instructions in this chapter.
  • Page 24 3: S HAPTER ETTING Figure 8 Local 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 Click OK. Figure 9 Internet Protocol (TCP/IP) Properties Screen 7 Restart your computer.
  • Page 25: Windows Xp

    Windows XP 1 From the Windows Start menu, select Control Panel. 2 Click on Network and Internet Connections. 3 Click on the Network Connections icon. 4 Double click on LAN or High Speed Connection icon. A screen titled Local Area Connection Status will appear. 5 Select Internet Protocol TCP/IP and click on Properties.
  • Page 26: Disabling Pppoe And Pptp Client Software

    3: S HAPTER ETTING Disabling PPPoE If you have PPPoE client software installed on your computer, you will and PPTP Client need to disable it. To do this: Software 1 From the Windows Start menu, select Settings > Control Panel. 2 Double click on Internet Options.
  • Page 27: Running The Setup Wizard

    Accessing the The Router setup program is Web-based, which means that it is accessed Wizard through your Web browser (Netscape Navigator 4.7 or higher, Internet Explorer 5.0 or higher, or Mozilla 1.2.1 or higher). To use the Setup Wizard: 1 Ensure that you have at least one computer connected to the Gateway. Refer to 2 Launch your Web browser on the computer.
  • Page 28 4: R HAPTER UNNING THE ETUP Figure 12 Router Login Screen 5 When you have logged in either: ■ ■ 6 You will be guided step by step through a basic setup procedure. IZARD The Status screen will appear menu. If your Router has not been configured before, the Wizard will launch automatically (refer to Figure...
  • Page 29: Dsl Settings

    Accessing the Wizard Figure 13 Status Screen DSL Settings Figure 14 DSL Settings Screen...
  • Page 30 4: R HAPTER UNNING THE ETUP The DSL Mode window allows you to set up the Router for the type of Internet connection you have. Before setting up your DSL connection mode, have your account information from your ISP ready. Select a DSL mode from the following: ■...
  • Page 31 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 boxes. 5 Check all of your settings, and then click Next. PPPoA Mode Figure 16 PPPoA Screen To setup the router for use with a PPP over ATM (PPPoA) connection, use the following procedure: 1 Enter your PPP over ATM user name in the Username text box.
  • Page 32 4: R HAPTER UNNING THE ETUP Figure 17 RFC1483 Routed Configuration Screen 1 Enter your Internet IP address in the WAN IP text box. 2 Enter the subnet mask in the Subnet Mask text box. 3 Enter your VPI and VCI information in the VPI/VCI text boxes. 4 Enter the default gateway in the Default Gateway text box.
  • Page 33: Summary

    Accessing the Wizard Figure 18 RFC1483 Bridged Configuration Screen 5 Enter your VPI and VCI information in the VPI/VCI text boxes. Check all of your settings, and then click Next. Summary Figure 19 Configuration Summary Screen...
  • Page 34 When you complete the Setup Wizard, a configuration summary will display. Verify the configuration information of the Router and then click Apply to save your settings. 3Com recommends that you print this page for your records. Your Router is now configured and ready for use.
  • Page 35: Router Configuration

    Navigating This chapter describes all the screens available through the Router Through the Router configuration pages, and is provided as a reference. To get to the Configuration configuration pages, browse to the Router by entering the URL in the Pages location bar of your browser.
  • Page 36: Status

    5: R HAPTER OUTER ONFIGURATION Status Figure 20 Status Screen There are two buttons on this screen - Connect and Disconnect. These buttons allow you to manually connect or disconnect your router from your ISP’s service. LAN Setup Your Router is equipped with a DHCP server that will automatically assign IP addresses to each computer on your network.
  • Page 37: Lan Settings

    The Router will also provide you with a list of all client computers connected to the network. To view the list, click DHCP clients list. LAN Settings Figure 21 LAN Settings Screen The LAN Settings screen is used to specify the LAN IP address of your Router, and to configure the DHCP server.
  • Page 38: Dhcp Clients List

    5: R HAPTER OUTER ONFIGURATION DHCP Clients List Figure 22 DHCP Clients List Screen The DHCP Clients List provides details on the devices that have received IP addresses from the Router. The list is only created when the Router is set up as a DHCP server.
  • Page 39: Wireless

    Wireless From these pages you can configure the settings for wireless connections. Figure 23 Wireless Settings Screen This screen allows you to 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.
  • Page 40: Encryption

    5: R HAPTER OUTER ONFIGURATION Your Router is capable of blocking this "random" searching for a network. If you disable the "Broadcast SSID" feature, the only way a computer can join the network is by setting the computer's SSID to the specific name of the network (like WLAN).
  • Page 41: Disabled

    ■ ■ Select the required value from the drop down list, and press Apply. Disabled In this mode, wireless transmissions will not be encrypted, and will be visible to everyone. However, when setting up or debugging wireless networks it is often useful to use this security mode. WPA-PSK (no server) Figure 26 WPA-PSK (no server) Screen WPA (Wireless Protected Access) provides dynamic key changes and...
  • Page 42: 128-Bit Wep

    5: R HAPTER OUTER ONFIGURATION 128-bit WEP Figure 27 128-bit WEP Screen WEP is the basic mechanism to transmit your data securely over the wireless network. Matching encryption keys must be setup on your Router and wireless client devices to use WEP. 1 You can either enter your WEP key as 13 pairs of hex digits (0-9, A-F), or enter a memorable passphrase in the Passphrase box, and then click Generate to generate the hex keys from the passphrase.
  • Page 43: Wpa (With Radius Server)

    WEP is the basic mechanism to transmit your data securely over the wireless network. Matching encryption keys must be setup on your Router and wireless client devices to use WEP. 1 You can either enter your WEP key as 5 pairs of hex digits (0-9, A-F), or enter a memorable passphrase in the Passphrase box, and then click Generate to generate the hex keys from the passphrase.
  • Page 44: Internet Settings

    5: R HAPTER OUTER ONFIGURATION 3 Enter the key for the RADIUS server in the RADIUS Key field. 4 By default, the WPA keys are changed every hour, but if you wish to change this you can do so by specifying the required time in the Re-key Interval field, in minutes 5 Click Apply.
  • Page 45: Pppoe

    PPPoE Figure 31 PPPoE Settings Screen 1 Enter the User Name assigned to you by your ISP in the User Name field. 2 Enter the Password assigned to you by your ISP in the Password field. Re-enter your password in the Retype Password field. 3 If your ISP assigns your IP address dynamically, then select Yes in the IP assigned by ISP field and proceed to step 4.
  • Page 46: Pppoa

    5: R HAPTER OUTER ONFIGURATION 8 Click Apply. PPPoA Figure 32 PPPoA Settings Screen 1 Enter the User Name assigned to you by your ISP in the User Name field. 2 Enter the Password assigned to you by your ISP in the Password field. Re-enter your password in the Retype Password field.
  • Page 47: Bridged Mode For Single Pc

    Enter a value of 0 to disable this timeout. 8 Click Apply. Bridged Mode for Figure 33 Bridge Mode for Single PC Screen Single PC 1 Enter the VPI and VCI parameters provided to you by your ISP in the VPI and VCI fields.
  • Page 48: Dns

    5: R HAPTER OUTER ONFIGURATION 3 Select the encapsulation type (LLC or VC MUX) in the Encapsulation field. This information will have been provided to you by your ISP. 4 Click Apply. Figure 35 DNS Screen If your ISP provided you with specific DNS addresses to us, enter them into the appropriate fields on this screen and click Apply.
  • Page 49: Static Routes

    Static Routes Figure 36 Static Route Parameters Screen The Static Route Parameter screen shows a list of current static route entries. For each entry, the following information is displayed: Index — the index of the entry ■ Network Address — the network address of the route. ■...
  • Page 50: Routing Table

    5: R HAPTER OUTER ONFIGURATION You can set up RIP independently on both LAN and WAN interfaces. 1 Select the RIP Mode Enable radio button. 2 Select the appropriate radio button to enable or disable Auto Summary. Auto Summarization sends simplified routing data to other RIP-enabled devices rather than full routing data.
  • Page 51: Firewall

    Figure 38 Routing Table Screen Firewall From these pages you can configure settings for the firewall. Figure 39 Firewall Screen Your Router is equipped with a firewall that will protect your network from a wide array of common hacker attacks including Ping of Death (PoD) and Denial of Service (DoS) attacks.
  • Page 52: Special Applications

    5: R HAPTER OUTER ONFIGURATION Special Applications Figure 40 Special Applications Screen Special Applications let you specify specific ports to be open for specific applications to work properly with the Network Address Translation (NAT) feature of the Router. A list of popular applications has been included to choose from. Select your application from the drop-down list at the top of the screen.
  • Page 53: Virtual Servers

    4 Click Apply. Virtual Servers Figure 41 Virtual Servers Screen This function will allow you to route external (Internet) calls 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 the Internet cannot get to them because they cannot be 'seen'.
  • Page 54: Client Ip Filters

    5: R HAPTER OUTER ONFIGURATION Client IP Filters The Router can be 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. Access Control Figure 42 Access Control Screen Access Control allows users to define the traffic type permitted or...
  • Page 55 Figure 43 Add PC Screen 2 Enter a description for the filter you are defining in the Client PC Description field. 3 Enter the IP address or IP address range into the Client IP Address fields. 4 Select the services 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 checkbox.
  • Page 56: Url Blocking

    5: R HAPTER OUTER ONFIGURATION URL Blocking Figure 44 URL Blocking Screen To configure the URL Blocking feature, use the table on the URL Blocking page to specify the websites (www.somesite.com) and/or keywords you want to filter on your network. For example, entering a keyword of “xxx”...
  • Page 57: Schedule Rule

    Firewall Schedule Rule Figure 45 Schedule Rule Screen The Router can be configured to restrict access to the Internet, e-mail or other network services at specific days and times. These schedule rules are used by the rules defined on the Access Control page (see “Access Control”...
  • Page 58 5: R HAPTER OUTER ONFIGURATION Figure 46 Add Schedule Rule Screen 2 Enter a name and comment for the schedule rule in the Name and Comment fields. 3 Specify the schedule rules for the required days and times - note that all times should be in 24 hour format.
  • Page 59: Mac Address Filtering

    Firewall MAC Address Figure 47 MAC Address Filtering Screen Filtering The MAC Address Filter is a powerful security feature that allows you to specify which computers are allowed on the Wireless network. Any wireless computers attempting to access the network that are not specified in the filter list will be denied access.
  • Page 60: Dmz

    5: R HAPTER OUTER ONFIGURATION Figure 48 DMZ Screen If you have a client PC that cannot run an Internet application properly from behind the firewall, you can open the client up to unrestricted two-way Internet access. This may be necessary if the NAT feature is causing problems with an application such as a game or video conferencing application.
  • Page 61 Firewall Remote Admin ■ Figure 49 Advanced Screen NAT Enable Before you enable this function, make sure you have changed the administrator password. Network Address Translation (NAT) is the method by which the router shares the single IP address assigned by your ISP with the computers on your network.
  • Page 62 5: R HAPTER OUTER ONFIGURATION Router ships with the Universal Plug and Play feature disabled. If you are using any applications that are Universal Plug and Play compliant, and wish to take advantage of the Universal Plug and Play features, you can enable this feature.
  • Page 63: Snmp

    SNMP SNMP (Simple Network Management Protocol) allows remote management of your router by a PC that has an SNMP management agent installed. SNMP Community Figure 50 SNMP Community Screen To Configure SNMP: 1 In the Community column, enter the name of the SNMP communication channel.
  • Page 64: Snmp Trap

    5: R HAPTER OUTER ONFIGURATION SNMP Trap Figure 51 SNMP Trap Screen You can configure your router to send status messages to the SNMP management agent if a problem occurs on the network. To configure traps: 1 In the IP Address field, enter the IP address of the PC to which you want your router to send status messages.
  • Page 65: System Tools

    System Tools System Tools These pages lets you manage different parameters of the router and perform certain administrative functions. Restart Router Figure 52 Restart Router Screen Sometimes it may be necessary to Restart or Reboot the Router. Restarting or Rebooting the Router will not delete any of your configuration settings.
  • Page 66: Backup/Restore Settings

    5: R HAPTER OUTER ONFIGURATION before you restore all of the defaults. To restore the factory default settings, click Reset. Backup/Restore Figure 54 Backup/Restore Settings Screen Settings You can save your current configuration by using this feature. Saving your configuration will allow you to restore it later if your settings are lost or changed.
  • Page 67: Admin Password

    From time to time 3Com may release new versions of the Routers firmware. Firmware updates contain improvements and fixes to problems that may have existed. Please download the firmware file to your PC first, and then click Browse and select the firmware file. Click Upgrade to upload the firmware to the Router.
  • Page 68: Time And Time Zone

    5: R HAPTER OUTER ONFIGURATION make any more changes. The login timeout option is for security purposes and the default is set to 5 minutes. As a note, only one computer can be logged into the Router's web management interface at one time.
  • Page 69: Status And Logs

    Status and Logs Status and Logs You can use the Status pages to view version numbers for your router’s software and hardware and check the status of connections to WAN, LAN and WLAN interfaces. ADSL Status Figure 58 ADSL Status Screen This screen shows modem status and statistics Logs Figure 59 Logs Screen...
  • Page 70 5: R HAPTER OUTER ONFIGURATION Click Clear to clear the log (note that all current entries will be erased). Click Save to save the log to disk in a text file. When prompted for a location to save the file to, specify a filename and location, and then click...
  • Page 71: Basic Connection Checks

    Basic Connection ■ Checks ■ ■ Browsing to the If you have connected your Router and computers together but cannot Router browse to the Router configuration screens, check the following: Configuration ■ Screens ■ ■ ■ ROUBLESHOOTING Check that the Router is connected to your computers and to the telephone line, and that all the equipment is powered on.
  • Page 72: Connecting To The Internet

    6: T HAPTER ROUBLESHOOTING ■ Connecting to the If you can browse to the Router configuration screens but cannot access Internet sites on the Internet, check the following: ■ ■ ■ ■ Forgotten Password If you can browse to the Router configuration screen but cannot log on and Reset to because you do not know or have forgotten the password, follow the Factory Defaults...
  • Page 73: Wireless Networking

    4 Press and hold the Reset button on the rear panel (see page 5 The Router will restart, and when the start-up sequence has completed, browse to: http://192.168.1.1 and run the configuration wizard. You may need to restart your computer before you attempt this.
  • Page 74: Recovering From Corrupted Software

    6: T HAPTER ROUBLESHOOTING ■ ■ ■ Recovering from If the system software has become corrupted, the Router will enter a Corrupted Software “recovery” state; DHCP is enabled, and the LAN IP address is set to 192.168.1.1. Follow the instructions below to upload a new copy of the system software to a Router unit in this state.
  • Page 75: Frequently Asked Questions

    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 Router and disconnect the telephone line and all your computers, except for the one computer with the software image.
  • Page 76 VPN hosts on your LAN that clients elsewhere on the Internet can connect to, but this is not a recommended configuration. Updates to the Router software are posted on the 3Com support web site, accessible by visiting: http://www.3com.com...
  • Page 77: Ip Addressing

    IP A The Internet The Internet protocol suite consists of a well-defined set of Protocol Suite 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 the protocols (IP and TCP) working together.
  • Page 78 A: IP A PPENDIX DDRESSING For your network to work correctly, all devices on the network must have: ■ ■ The only value that will be different is the specific host device number. This value must always be unique. An example IP address is ‘192.168.100.8’. However, the size of the network determines the structure of this IP Address.
  • Page 79: How Does A Device Obtain An Ip Address And Subnet Mask

    This type of IP Address operates on a subnet mask of ‘255.255.0.0’. represented) and a Router might be configured. Table 4 IP Addressing and Subnet Masking Device PC 1 PC 2 PC 3 PC 4 Router How does a Device There are three different ways to obtain an IP address and the subnet Obtain an IP mask.
  • Page 80 A: IP A PPENDIX DDRESSING an IP address at random from the industry standard subnet of 169.254.x.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 was introduced by Microsoft in the Windows 98 operating system and is also supported in Windows 2000.
  • Page 81: Technical Specifications

    This section lists the technical specifications for the OfficeConnect ADSL Wireless 11g Firewall Router. OfficeConnect ADSL Interfaces Wireless 11g DSL connection Firewall Router LAN connection — four 10Mbps/100Mbps dual speed Ethernet ports (10BASE-T/100BASE-TX) WLAN Interfaces Standard IEEE 802.11g, Direct Sequence Spread Spectrum (DSSS) Transmission rate: 54Mbps, automatic fallback to 48, 36, 24, 18, 12, or 6 Mbps Maximum channels: 14...
  • Page 82: Standards

    B: T PPENDIX ECHNICAL PECIFICATIONS Maximum clients: 128 O/P Power 16dBm Operating Temperature 0 °C to 40 °C (32 °F to 105 °F) Power 8VA, 25 BThU/hr Humidity 0 % to 90 % (non-condensing) humidity Dimensions Width = 220 mm (8.7 in.) ■...
  • Page 83 System Requirements Operating Systems The Router will support the following Operating Systems: ■ ■ ■ ■ ■ ■ ■ Ethernet Performance The Router complies to the IEEE 802.3i, u and x specifications. Cable Specifications The Router supports the following cable types and maximum lengths: ■...
  • Page 84 B: T PPENDIX ECHNICAL PECIFICATIONS...
  • Page 85: Safety Information

    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 Router generates and uses radio frequency (rf) energy. In some environments, the use of rf energy is not permitted.
  • Page 86 C: S PPENDIX AFETY NFORMATION 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: Warnhinweise enthalten Anweisungen, die Sie zu Ihrer eigenen Sicherheit befolgen müssen. Alle Anweisungen sind sorgfältig zu befolgen.
  • Page 87 VORSICHT: Es sind keine von dem Benutzer zu ersetzende oder zu wartende Teile in dem Gerät vorhanden. Wenn Sie ein Problem mit dem Router haben, das nicht mittels der Fehleranalyse in dieser Anleitung behoben werden kann, setzen Sie sich mit Ihrem Lieferanten in Verbindung.
  • Page 88 C: S PPENDIX AFETY NFORMATION conditions ne sont maintenues que si l'équipement auquel il est raccordé fonctionne dans les mêmes conditions. AVERTISSEMENT: Il n’y a pas de parties remplaceables par les utilisateurs ou entretenues par les utilisateurs à l’intérieur du moyeu. Si vous avez un problème physique avec le moyeu qui ne peut pas être résolu avec les actions de la résolution des problèmes dans ce guide, contacter votre fournisseur.
  • Page 89: End User Software License Agreement

    Subject to the restrictions set forth herein, the Software is licensed to be used on any workstation or any network server owned by or leased to you, for your internal use, provided that the Software is used only in connection with this 3Com product. You may reproduce and provide one (1) copy of the Software and Documentation for each such workstation or network server on which the Software is used as permitted hereunder.
  • Page 90 Software and Documentation, and may be amended only in a writing signed by both parties. Should you have any questions concerning this Agreement or if you desire to contact 3Com for any reason, please contact the 3Com subsidiary serving your country, or write: 3Com Corporation, 350 Campus Drive, Marlborough, MA.
  • Page 91: Upport For Your

    3Com Extended Warranty and Professional Services is available at http://www.3com.com/ Contact your authorized 3Com reseller or 3Com for additional product and support information. Troubleshoot You will find support tools posted on the 3Com web site at Online http://www.3com.com/ ■ ■...
  • Page 92: Access Software Downloads

    ■ ■ ■ To send a product directly to 3Com for repair, you must first obtain a return authorization number (RMA). Products sent to 3Com, without authorization numbers clearly marked on the outside of the package, will UPPORT FOR YOUR RODUCT http://www.3com.com/prodforms/software/connection_assistan...
  • Page 93 Pakistan +61 2 9937 5083 You can also obtain support in this region using the following e-mail: apr_technical_support@3com.com Or request a repair authorization number (RMA) by fax using this number: Europe, Middle East, and Africa Telephone Technical Support and Repair...
  • Page 94 BTAINING UPPORT FOR YOUR Country Telephone Number Latin America Telephone Technical Support and Repair Antigua 1 800 988 2112 Argentina 0 810 444 3COM Aruba 1 800 998 2112 Bahamas 1 800 998 2112 Barbados 1 800 998 2112 Belize...
  • Page 95: Glossary

    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.
  • Page 96 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 computers to have a domain name (such as 3com.com) and one or more IP addresses (such as 192.34.45.8). A DNS server keeps a database of...
  • Page 97 LOSSARY host computers and their respective domain names and IP addresses, so that when a domain name is requested (as in typing “3com.com” into your Internet browser), the user is sent to the proper IP address. The DNS server address used by the computers on your home network is the location of the DNS server your ISP has assigned.
  • Page 98 LOSSARY IEEE Institute of Electrical and Electronics Engineers. This American organization was founded in 1963 and sets standards for computers and communications. IETF Internet Engineering Task Force. An organization responsible for providing engineering solutions for TCP/IP networks. In the network management area, this group is responsible for the development of the SNMP protocol.
  • Page 99 LOSSARY MAC Address Media Access Control Address. Also called the hardware or physical address. A layer 2 address associated with a particular network device. Most devices that connect to a LAN have a MAC address assigned to them as they are used to identify other devices in a network. MAC addresses are 6 bytes long.
  • Page 100 LOSSARY Server A computer in a network that is shared by multiple end stations. Servers provide end stations with access to shared network services such as computer files and printer queues. SSID Service Set Identifier. Some vendors of wireless products use SSID interchangeably with ESSID.
  • Page 101 URL Filter A URL Filter is a feature of a firewall that allows it to stop its clients form browsing inappropriate Web sites. Wide Area Network. A network that connects computers located in geographically separate areas (for example, different buildings, cities, or countries).
  • Page 102 LOSSARY...
  • Page 103 NDEX Addresses IP 77 Automatic Addressing 79 Cable Specifications 83 Channels 105 Conventions notice icons, About This Guide 8 text, About This Guide 8 DHCP 38, 79 DHCP Server 25 DNS 24 Dynamic IP Address 31 Forgotten Password 72 Internet addresses 77 IP Address 37, 77 LED 14...
  • Page 104 NDEX...
  • Page 105 Channels Use of the OfficeConnect ADSL Wireless 11g Firewall Router 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. the local regulatory agencies: Table 5 Channels Channels 1 - 13...
  • Page 106 IEEE 802.3. FCC Declaration of We declare under our sole responsibility that the Conformity Model: 3CRWE754G72-A/B to which this declaration relates, is in conformity with the following standards or other normative documents: ■ ■ Reorient the receiving antenna.
  • Page 107 ■ Exposure to Radio Frequency Radiation: The radiated output power of the 3Com ADSL 11g Wireless Router is far below the FCC radio frequency exposure limits. Nevertheless, the 3Com OfficeConnect ADSL Wireless 11g Firewall Router shall be used in such manner that the potential for human contact during normal operation is minimized.
  • Page 110 3Com Corporation, Corporate Headquarters, 350 Campus Drive, Marlborough, MA USA 01752-3064 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 © 2004 3Com Corporation. All rights reserved.

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