3Com 3CRWDR100U-72 User Guide

3Com 3CRWDR100U-72 - OfficeConnect ADSL Wireless 11g Firewall Router Manual

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  • 3Com 3CRWDR100U-72 | User Guide - Page 1
    OfficeConnect® ADSL Wireless 11g Firewall Router User Guide Model WL-542 3CRWDR100A-72 3CRWDR100B-72 3CRWDR100U-72 http://www.3com.com/ Part No. DUA100A-72AAA02 Published August 2005
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    or deface any portion of any legend provided on any licensed program or documentation contained in, or delivered to you in conjunction with, this User Guide. Unless otherwise indicated, 3Com registered trademarks are registered in the United States and may or may not be registered in other countries
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    Naming Convention 5 Conventions 6 Feedback About this User Guide 6 Related Documentation 7 1 INTRODUCING THE ROUTER OfficeConnect ADSL Wireless 11g Firewall Router 9 Router Advantages 11 Package Contents 11 Minimum System and Component Requirements 12 Front Panel
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    4 RUNNING THE SETUP WIZARD Accessing the Setup Wizard 25 Setup Wizard - Connection Type 27 5 CONFIGURING THE ROUTER Navigating Through the Router Configuration Pages 35 Main Menu 35 Status Screen 35 Status 35 LAN Setup 36 LAN Settings 37 Wireless Settings 39 Configuring Wireless 39 Encryption 40
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    Status 80 ADSL Status 80 ATM PVC Status 81 Logs 81 Support/Feedback 82 Support 82 Feedback 82 6 TROUBLESHOOTING Basic Connection Checks 83 Browsing to the Router Configuration Screens 83 Connecting to the Internet 84 Forgotten Password and Reset to Factory Defaults 84 Wireless
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    SAFETY INFORMATION D END USER SOFTWARE LICENSE AGREEMENT 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 104 Contact Us 105 GLOSSARY REGULATORY NOTICES INDEX
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    the OfficeConnect ADSL Wireless 11g Firewall Router (3CRWD100x-72). This guide is intended for use by those responsible for installing Document Format (PDF) on the 3Com World Wide Web site: http://www.3com.com Naming Convention Throughout this guide, the OfficeConnect ADSL Wireless 11g Firewall
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    word "enter" in this guide, you must type something, and then press Return or Enter. Do not press Return or Enter when an instruction simply says "type." If us. They will help make our documentation more useful to you. Please e-mail comments about this document to 3Com at: pddtechpubs_comments@3com
  • 3Com 3CRWDR100U-72 | User Guide - Page 9
    use this e-mail address for technical support questions. For information about contacting Technical Support, please refer to Appendix E. In addition to this guide, each Router document set includes one Installation Guide. This guide contains the instructions you need to install and configure your
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    8 ABOUT THIS GUIDE
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    1 INTRODUCING THE ROUTER 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,
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    10 CHAPTER 1: INTRODUCING THE ROUTER Figure 1 Example Network Without a Router 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
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    server to enable remote access to Web, FTP, and other services on your network ■ Security - Firewall protection against Internet hacker feet ■ One Telephone Cable ■ One CD-ROM containing this User Guide ■ Installation Guide ■ One Support and Safety Information Sheet ■ One Warranty Flyer If any of
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    with at least the following: ■ A computer with an operating system that supports TCP/IP networking protocols (for example Windows 98/NT/Me/2000/XP, Unix . Figure 3 Router - Front Panel 1 2 3 5 4 3CRWDR100A-72 OfficeConnect ADSL Wireless 11g Firewall Router Power SYNC OnlineWLAN LAN Status 1
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    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. Refer to Chapter 6 "Troubleshooting". 5 LAN Status LEDs Green If the LED is on, the link between the port and the next piece of network equipment is OK. If
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    14 CHAPTER 1: INTRODUCING THE ROUTER 7 ADSL Port Using the RJ11 cable provided, you should connect your Router to the telephone socket via a splitter. 8 Power Adapter Socket Only use the power adapter that is supplied with this Router. Do not use any other adapter. 9 Reset Button If you want to
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    2 INSTALLING THE ROUTER Introduction This chapter will guide you through a basic installation of the Router, including: ■ Connecting the Router to the Internet. ■ Connecting the Router to your network. ■ Setting up your computers for
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    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. Using the Rubber Feet Use the four self-adhesive rubber feet to prevent your Router from
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    the Router Power Supply Unit Internet Telephone Socket Splitter/ Microfilter Block 3Com OfficeConnect ADSL Wireless 11g Firewall Router Your PC Wireless Users 1 Run the provided telephone cable from the wall jack providing ADSL service to the ADSL port on your ADSL Router. When inserting an
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    18 CHAPTER 2: INSTALLING THE ROUTER Figure 6 Installing with a splitter
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    of your Router. Next you need to set up your computers so that they can make use of the 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. If you configure the Router
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    20 CHAPTER 2: INSTALLING THE ROUTER
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    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. Obtaining an IP Address Automatically Windows 2000 If you are using a Windows 2000-based computer, use the following procedure to
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    22 CHAPTER 3: SETTING UP YOUR COMPUTERS 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 Figure 9. Click OK. Figure 9 Internet Protocol (TCP/IP) Properties Screen 7 Restart
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    Obtaining an IP Address Automatically 23 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
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    24 CHAPTER 3: SETTING UP YOUR COMPUTERS Disabling PPPoE and PPTP Client Software If you have PPPoE client software installed on your computer, you will need to disable it. To do this: 1 From the Windows Start menu, select Settings > Control Panel. 2 Double click on Internet Options. 3 Select the
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    4 RUNNING THE SETUP WIZARD Accessing the Setup Wizard The Router setup program is Web-based, which means that it is accessed 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
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    Wizard from the menu. or ■ If your Router has not been configured before, the Wizard will launch automatically (refer to Figure 14). 6 You will be guided step by step through a basic setup procedure. Figure 13 Status Screen
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    Accessing the Setup Wizard 27 Setup Wizard - Figure 14 Connection Type Screen Connection Type The Connection Type screen allows you to set up the Router for the type of Internet connection you have. Before setting up your connection type, have your account information from your ISP ready. Select a
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    28 CHAPTER 4: RUNNING THE SETUP WIZARD PPPoE Mode Figure 15 PPPoE Screen To set up the router for use with a PPP over Ethernet (PPPoE) connection, use the following procedure: 1 Enter your PPP over Ethernet user name in the Username text box. 2 Enter your PPP over Ethernet password in the Password
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    Accessing the Setup Wizard 29 Figure 16 Wireless Settings Screen 7 Set the Wireless Channel you want to use from the Channel drop-down list. 8 Specify the SSID to be used by your Wireless Network in the SSID field. If there are other wireless networks in your area, you should give your wireless
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    30 CHAPTER 4: RUNNING THE SETUP WIZARD 5 Select the encapsulation type (LLC or VC MUX) in the Encapsulation drop-down list. This information will have been provided to you by your ISP. 6 Check all of your settings, and then click Next. The Wireless Settings screen is displayed. Figure 18 Wireless
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    Accessing the Setup Wizard 31 Bridge Mode (for a single PC) (RFC 1483 Bridged Mode) To set up the Router for use with an RFC1483 bridged connection: Figure 19 Bridged Mode Configuration Screen 1 Enter your VPI and VCI information in the VPI/VCI text boxes. 2 Select the encapsulation type (LLC or VC
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    32 CHAPTER 4: RUNNING THE SETUP WIZARD Routing Mode over ATM (RFC 1483 Routed Mode) To set up the Router for use with an RFC1483 routed connection: Figure 21 Routing Mode 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 the
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    Accessing the Setup Wizard 33 8 Set the Wireless Channel you want to use from the Channel drop-down list. 9 Specify the SSID to be used by your Wireless Network in the SSID field. If there are other wireless networks in your area, you should give your wireless network a unique name. Dynamic/Fixed IP
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    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. See Chapter 5 for a detailed
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    5 CONFIGURING THE ROUTER Navigating Through the Router Configuration Pages This chapter describes all the screens available through the Router configuration pages, and is provided as a reference. To get to the configuration pages, browse to the Router by entering the URL in the location bar of
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    36 CHAPTER 5: CONFIGURING THE ROUTER LAN Setup Your Router is equipped with a DHCP server that will automatically assign IP addresses to each computer on your network. The factory default settings for the DHCP server will work in most any application. If you need to make changes to the settings,
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    LAN Setup 37 LAN Settings The LAN Settings screen is used to specify the LAN IP address of your Router, and to configure the DHCP server. Figure 27 LAN Settings Screen 1 Select LAN Settings and then specify the Router IP Address and Subnet Mask in the appropriate fields. The default IP address of
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    38 CHAPTER 5: CONFIGURING THE ROUTER DHCP Clients List 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. For each device that is connected to the LAN the following information is
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    Wireless Settings 39 Wireless Settings From these pages, you can configure the settings for wireless connections. Figure 29 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
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    40 CHAPTER 5: CONFIGURING THE ROUTER To enable Wireless function: 1 Select the Wireless Channel you want to use from the Channel drop-down list. 2 Specify the SSID to be used by your Wireless Network in the SSID field. If there are other wireless networks in your area, you should give your wireless
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    -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 Equivalent Privacy) should be used. Figure 32 WPA-PSK (no server) Screen To enable WPA-PSK: 1 Enter the pre-shared
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    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). Or you can generate the 128-bit WEP key automatically: ■ enter a memorable passphrase in the
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    keys must be setup on your Router and wireless client devices to use WEP. Figure 34 64-bit WEP Screen To enable 64-bit WEP: 1 Manually enter 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
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    Server) WPA (WiFi Protected Access) provides dynamic key changes and constitutes the best security solution. On a wireless network where not all devices support WPA, WEP (Wired Equivalent Privacy) should be used. Wireless Protected Access using a server to distribute keys to the clients, and this
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    Wireless Settings 45 Wireless WDS Settings The Router supports WDS (Wireless Distribution System). WDS enables one or more Access Points to rebroadcast received signals to extend range and reach, though this can affect the
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    46 CHAPTER 5: CONFIGURING THE ROUTER Internet Settings From these pages, you can configure the settings for your DSL connection. Connection Type The Internet Settings screen is used to configure the parameters for your DSL connection. The information necessary to complete these screens should be
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    as voice and video applications. The consistent availability of a fixed quantity of bandwidth is considered appropriate for CBR service. ■ UBR (unspecified bit rate): the UBR service class is intended for delay-tolerant or non-real-time applications, for example, those which do not require tightly
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    your ISP every time a PC needs to access the Internet. ■ Manual - Start in Disconnected means that after re-booting the Router, the Internet connection will -booting the Router, it will automatically establish connection to your ISP. ■ Manual - Start in Last State means that after re-booting the Router, the
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    as voice and video applications. The consistent availability of a fixed quantity of bandwidth is considered appropriate for CBR service. ■ UBR (unspecified bit rate): the UBR service class is intended for delay-tolerant or non-real-time applications, for example, those which do not require tightly
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    your ISP every time a PC needs to access the Internet. ■ Manual - Start in Disconnected means that after re-booting the Router, the Internet connection will -booting the Router, it will automatically establish connection to your ISP. ■ Manual - Start in Last State means that after re-booting the Router, the
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    as voice and video applications. The consistent availability of a fixed quantity of bandwidth is considered appropriate for CBR service. ■ UBR (unspecified bit rate): the UBR service class is intended for delay-tolerant or non-real-time applications, for example, those which do not require tightly
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    52 CHAPTER 5: CONFIGURING THE ROUTER 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 Forum for ATM networks. VBR is subdivided into a real time (RT) class and non-real
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    as voice and video applications. The consistent availability of a fixed quantity of bandwidth is considered appropriate for CBR service. ■ UBR (unspecified bit rate): the UBR service class is intended for delay-tolerant or non-real-time applications, for example, those which do not require tightly
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    as voice and video applications. The consistent availability of a fixed quantity of bandwidth is considered appropriate for CBR service. ■ UBR (unspecified bit rate): the UBR service class is intended for delay-tolerant or non-real-time applications, for example, those which do not require tightly
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    names are alphabetic, they're easier to remember. The Internet however, is really based on IP addresses. Every time you use a domain name, a DNS service must translate the name into the corresponding IP address. For example, the domain name www.example.com might translate to 198.105.232.4. Check
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    56 CHAPTER 5: CONFIGURING THE ROUTER Figure 44 DNS Screen If the DNS information is automatically provided by your ISP every time you connect to it, check the Automatic from ISP box. If your ISP provided you with specific DNS addresses to use, enter them into the appropriate fields on this screen
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    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. You can turn the firewall function off if needed. Turning off the firewall protection will not leave your network completely vulnerable
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    . If your application is not listed, you will need to check with the application vendor to determine which ports need to be configured. You can manually input this port information into the Router.
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    Firewall 59 To manually enter the port information: 1 Specify the trigger port (the one 3 Click Apply. Virtual Servers The Virtual servers feature allows you to route external (Internet) calls for services such as a web server (port 80), FTP server (Port 21), or other applications through your
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    for each Virtual Server entry. 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 Access Control
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    address range into the Client PC 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 check box. If the service to be restricted is not listed on the screen, you can enter
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    62 CHAPTER 5: CONFIGURING THE ROUTER URL Filter To configure the URL filter feature, use the table on the URL Filter page to specify the Web sites (www.somesite.com) and/or keywords you want to filter on your network. For example, entering a keyword of xxx would block access to any URL that contains
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    3Com Content Filter Service (3CSBCFS). To activate the 14-day free trial of the service, you must first register your Router at www.3com.com. To continue using the service you want to use is not listed, enter the server address manually. 2 Define the time in the Server Timeout field (the default
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    Click Apply for the changes to take effect. Schedule Rule 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 section of this screen (see "Access Control
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    Figure 54 Add Schedule Rule Screen Firewall 65 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. 4 Click Apply. MAC Address Filtering The MAC Address
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    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. Figure 56 DMZ Screen Use this feature on a temporary basis. The computer in the
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    Firewall 67 To put a computer in the DMZ, enter the last digits of its LAN IP address in the Static IP field. Put the IP address (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
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    68 CHAPTER 5: CONFIGURING THE ROUTER Advanced From the Advanced screen, you can configure: ■ NAT (Network Address Translation) ■ Universal Plug and Play ■ WAN Ping Blocking ■ Remote Admin Three sub-menu items can also be configures in this page: ■ Routing ■ DDNS ■ SNMP Figure 57 Advanced Screen
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    - NAT-T (NAT Traversal) is an Internet Draft proposed to IETF in order to help the problems associated with passing IPsec traffic through NAT Routers. For NAT-T to work, both ends of the connection need to support this function. Ensure that you select NAT-T only if it is needed as it will reduce
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    70 CHAPTER 5: CONFIGURING THE ROUTER Remote Administration allows you to make changes to your Router's settings from anywhere on the Internet. You can choose to either: ■ Click the check box to enable any PC on the network to remotely manage your Router. ■ Enter one specific IP address that can
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    Advanced 71 ■ Gateway - the router used to route data to the network specified by the network address. To add a static route entry to the table, click Add and on the screen that appears type in the network address, subnet mask and router. To change an entry, click Edit and to delete an entry, click
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    72 CHAPTER 5: CONFIGURING THE ROUTER 3Com recommends that you only use RIPv1 if there is an existing RIP-enabled device on your network that does not support RIPv2. In all other cases, you should use RIPv2. 5 Use the Poison Reverse drop-down list to enable or disable Poison Reverse on the router.
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    you to map a static domain name to a dynamic IP address. The Router supports two DDNS providers: TZO.com and DYNDNS. Before you set up DDNS, you 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
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    74 CHAPTER 5: CONFIGURING THE ROUTER 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 62 SNMP Screen To Configure SNMP: 1 In the Community column, enter the name of the SNMP communication
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    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 match the version of trap messaging that your SNMP management agent supports. The router supports V1 and V2c trap messaging. System Tools These pages lets
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    to restore it later if your settings are lost or changed. It is recommended that you backup your current configuration before performing a firmware update. The Restore Settings option will allow you to restore a previously saved configuration. Please select the configuration file using the Browse
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    System Tools 77 Upgrade From time to time 3Com may release new versions of the Router's firmware. Firmware updates contain improvements and fixes to problems that may have existed. Figure 66 Upgrade Screen Please download the firmware file to your PC first, and then click Browse and select the
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    78 CHAPTER 5: CONFIGURING THE ROUTER To change the password: 1 Enter the current password into the Current Password field. 2 Enter the new password into the New Password and Confirm new Password fields. 3 Click Apply. The login timeout option allows you to set the period of time that you can be
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    System Tools 79 a checkmark in the box next to Enable Daylight Saving. The system clock may not update immediately. Allow at least 15 minutes for the router to contact the time servers on the Internet and get a response. You cannot set the clock yourself. You can specify which SNTP servers the
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    80 CHAPTER 5: CONFIGURING THE ROUTER Status and Logs You can use the Status Screen to view version 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.
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    ATM PVC Status Figure 72 ATM PVC Status Screen Status and Logs 81 This screen shows ATM PVC status and statistics. ■ Click Disconnect to disconnect from your ISP. ■ Click Connect
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    CONFIGURING THE ROUTER Support/Feedback You can use the Support/Feedback 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 to 3Com Web site. Figure
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    6 TROUBLESHOOTING Basic Connection Checks ■ Check that the Router is connected to your computers and to the telephone line, and that all the equipment is powered on.
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    84 CHAPTER 6: TROUBLESHOOTING ■ If you cannot browse to the Router, use the 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 PPPoE or PPPoA user
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    correct. ■ Ensure that the Wireless Clients are using the same SSID or Service Area Name as the Router. The SSID is case-sensitive ■ Ensure that the same as those configured on the Router. The Router cannot simultaneously support WPA and WEP encryption. ■ Ensure that you have the Wireless computer
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    Router to establish whether this problem exists. ■ Most wireless computer Adapters will scan the channels for the wireless Router. If a wireless computer has not located the Router then try initiating a search manually if the client software supports this feature or manually set the channel on your
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    The latest software is available on 3Com's Web site at: www.3com.com 1 Remove power from utility in the Router. 5 Follow the on-screen instructions. Enter the path and filename of the software image normal operation. 7 Refer to the Installation Guide to reconnect your Router to the telephone line
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    simple, reliable means of expanding your network; contact your supplier for more information, or visit: http://www.3com.com/ Does the Router support virtual private networks (VPNs)? The Router supports VPN passthrough, which allows VPN clients on the LAN to communicate with VPN hosts on the Internet
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    widely known and is a combination of two of the protocols (IP and TCP) working together. TCP/IP is an internationally adopted and supported networking standard that provides connectivity between equipment from many vendors over a wide variety of networking technologies. Managing the Router over the
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    Addressing and Subnet Masking Device PC 1 PC 2 PC 3 Router IP Address 192.168.100.8 192.168.100.33 192.168.100.188 192.168.100.72 Subnet Mask 255.255.255.0 255.255.255.0 255.255.255.0 255.255.255.0 Type Two In larger networks, where there are more devices, the
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    .100.8 192.168.201.30 192.168.113.155 192.168.002.230 192.168.002.72 Subnet Mask 255.255.0.0 255.255.0.0 255.255.0.0 255.255.0.0 255.255.0.0 How does them. Static Addressing You must enter an IP Address and the subnet mask manually on every device. Using a static IP and subnet mask means the
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    .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
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    Spectrum (DSSS) Transmission rate: 54Mbps, automatic fallback to 48, 36, 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, OFDM
  • 3Com 3CRWDR100U-72 | User Guide - Page 96
    94 APPENDIX B: TECHNICAL SPECIFICATIONS 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.) ■ Depth = 133 mm (5.2 in.) ■ Height = 38 mm (1.5 in.) Weight
  • 3Com 3CRWDR100U-72 | User Guide - Page 97
    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 types and maximum lengths: ■ Category 3 (Ethernet) or Category 5 (Fast Ethernet or Dual Speed Ethernet) Twisted Pair - shielded
  • 3Com 3CRWDR100U-72 | User Guide - Page 98
    96 APPENDIX B: TECHNICAL SPECIFICATIONS
  • 3Com 3CRWDR100U-72 | User Guide - Page 99
    SELV conditions. WARNING: There are no user-replaceable fuses or user-serviceable parts inside the Router. If you have a physical problem with the unit that cannot be solved with problem solving actions in this guide, contact your supplier. WARNING: Disconnect the power adapter before moving the
  • 3Com 3CRWDR100U-72 | User Guide - Page 100
    98 APPENDIX C: SAFETY INFORMATION 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
  • 3Com 3CRWDR100U-72 | User Guide - Page 101
    importantes de sécurité 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
  • 3Com 3CRWDR100U-72 | User Guide - Page 102
    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. AVERTISSEMENT: Débranchez l'adaptateur électrique avant de retirer cet appareil. AVERTISSEMENT: Ports RJ-45. Il s'agit de prises femelles blindées
  • 3Com 3CRWDR100U-72 | User Guide - Page 103
    Software and Documentation may be copied only as essential for backup or archive purposes in support of your use of the Software as permitted hereunder. Each copy of the Software and Documentation must contain 3Com's and its licensors' proprietary rights and copyright notices in the same form as on
  • 3Com 3CRWDR100U-72 | User Guide - Page 104
    is provided with only such rights as are provided in this Agreement, which is 3Com's standard commercial license for the Software. Technical data is provided with limited rights stated on the Limited Warranty Card or in the product manual, whether in paper or electronic form, accompanying the
  • 3Com 3CRWDR100U-72 | User Guide - Page 105
    trouble registering your product, please contact 3Com Global Services for assistance. To enhance response times or extend warranty benefits, contact 3Com or your authorized 3Com reseller. Value-added services like 3Com ExpressSM and GuardianSM can include 24x7 telephone technical support, software
  • 3Com 3CRWDR100U-72 | User Guide - Page 106
    104 APPENDIX E: OBTAINING SUPPORT FOR YOUR PRODUCT Troubleshoot Online You will find support tools posted on the 3Com Web site at www.3com.com. 3Com Knowledgebase helps you troubleshoot 3Com products. This query-based interactive tool is located at http://knowledgebase.3com.com and contains
  • 3Com 3CRWDR100U-72 | User Guide - Page 107
    .com/. First time users will need to apply for a user name and password. Contact Us 3Com offers telephone, e-mail and internet access to technical support and repair services. To access these services for your region, use the appropriate telephone number, URL or e-mail address from the list below
  • 3Com 3CRWDR100U-72 | User Guide - Page 108
    Poland Portugal South Africa Spain Sweden Switzerland U.K. You can also obtain support in this region using the following URL: http://emea.3com.com/support/email.html Latin America Telephone Technical Support and Repair Antigua Barbuda Argentina Local Number Argentina Argentina Aruba Bahamas
  • 3Com 3CRWDR100U-72 | User Guide - Page 109
    Country Telephone Number Country US and Canada Telephone Technical Support and Repair 1 800 876 3266 Contact Us 107 Telephone Number
  • 3Com 3CRWDR100U-72 | User Guide - Page 110
    108 APPENDIX E: OBTAINING SUPPORT FOR YOUR PRODUCT
  • 3Com 3CRWDR100U-72 | User Guide - Page 111
    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
  • 3Com 3CRWDR100U-72 | User Guide - Page 112
    . 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 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
  • 3Com 3CRWDR100U-72 | User Guide - Page 113
    , so that when a domain name is requested (as in typing "3com.com" into your Internet browser), the user is sent to the proper bit is a more powerful level of encryption than 40/64 bit. ESSID Extended Service Set Identifier. The ESSID is a unique identifier for your wireless network. You must
  • 3Com 3CRWDR100U-72 | User Guide - Page 114
    digital certificates for device authentication. When setting up an IPSec connection between two devices, make sure that they support the same encryption method. ISP Internet Service Provider. An ISP is a business that provides connectivity to the Internet for individuals and other businesses or
  • 3Com 3CRWDR100U-72 | User Guide - Page 115
    GLOSSARY 113 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.
  • 3Com 3CRWDR100U-72 | User Guide - Page 116
    stations with access to shared network services such as computer files and printer queues. SSID Service Set Identifier. Some vendors of for the interconnection of networks. Originally a UNIX standard, TCP/IP is now supported on almost all platforms, and is the protocol of the Internet. TCP relates
  • 3Com 3CRWDR100U-72 | User Guide - Page 117
    Wireless Client The term used to describe a desktop or mobile PC that is wirelessly connected to your wireless network Wireless LAN Service Another term for ESSID (Extended Service Set Identifier) Area Wizard A Windows application that automates a procedure such as installation or configuration.
  • 3Com 3CRWDR100U-72 | User Guide - Page 118
    116 GLOSSARY 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. A dynamically changing encryption mechanism for wireless networking. Encryption strength is 256
  • 3Com 3CRWDR100U-72 | User Guide - Page 119
    (FCC) EMC COMPLIANCE US MANUFACTURER'S FCC DECLARATION OF CONFORMITY The 3Com OfficeConnect ADSL 11g Firewall Router, Model Number: WL-542 (3CRWDR100A-72, 3CRWDR100A-72, 3CRWDR100A-72) must be installed and used in strict accordance with the manufacturer's instructions as described in the
  • 3Com 3CRWDR100U-72 | User Guide - Page 120
    118 interference that may cause undesired operation. 3Com OfficeConnect ADSL 11g Firewall Router Model WL-542 installed outdoors is subject to licensing. Pour empecher que cet appareil cause du brouillage au service faisant l'objet d'une licence, il doit etre utilize a l'interieur et devrait etre
  • 3Com 3CRWDR100U-72 | User Guide - Page 121
    product is installed. Refer to 3CRWDR100A-72, 3CRWDR100A-72, 3CRWDR100A-72 User Guide. English Finnish Dutch French Swedish Support web page for the 3Com OfficeConnect ADSL 11g Firewall Router (3CRWDR100A-72, 3CRWDR100A-72, 3CRWDR100A-72) at http://www.3com.com. Also available at http://support.3com
  • 3Com 3CRWDR100U-72 | User Guide - Page 122
    120 EU - RESTRICTIONS FOR USE IN THE 2.4GHZ BAND BRAZIL RF COMPLIANCE This device may be operated indoors or outdoors in all countries of the European Community using the 2.4GHz band: Channels 1 - 13, except where noted below. ■ In Italy the end-user must apply for a license from the national
  • 3Com 3CRWDR100U-72 | User Guide - Page 123
    Configuration Screen 33 C Cable Specifications 91 Channels 111 Configuration Summary Screen 37 Connection Type Screen 29, 50 Conventions notice 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
  • 3Com 3CRWDR100U-72 | User Guide - Page 124
    Screen 28 Routing Mode Screen 34 Routing 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 Addressing 87 Static Route Parameters Screen 57 Status Screen
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Part No. DUA100A-72AAA02
Published August 2005
OfficeConnect
®
ADSL Wireless 11g Firewall Router
User Guide
Model WL-542
3CRWDR100A-72
3CRWDR100B-72
3CRWDR100U-72