OfficeConnect® 11g Cable/DSL Router User Guide 3CRWE554G72T 3CRWE554G72TU http://www.3com.com/ Part No. DUA0554-TAAA01 Rev.
3Com Corporation 5500 Bayfront Plaza Santa Clara, California 95052-8145 Copyright © 2003, 3Com Corporation. All rights reserved. No part of this documentation may be reproduced in any form or by any means or used to make any derivative work (such as translation, transformation, or adaptation) without written permission from 3Com Corporation.
CONTENTS ABOUT THIS GUIDE Naming Convention 7 Conventions 8 Feedback about this User Guide Related Documentation 9 Product Registration 9 1 8 INTRODUCING THE ROUTER OfficeConnect 11g Cable/DSL Router 11 Router Advantages 13 Package Contents 13 Minimum System and Component Requirements Front Panel 14 Rear Panel 16 2 HARDWARE INSTALLATION Introduction 19 Safety Information 19 Positioning the Router 19 Using the Rubber Feet 20 Wall Mounting 20 Before you Install your Router 21 Powering Up the Router 22 Co
Macintosh 27 Disabling PPPoE and PPTP Client Software Disabling Web Proxy 28 4 28 RUNNING THE SETUP WIZARD Accessing the Wizard 29 Password 32 Time Zone 32 WAN Settings 33 LAN Settings 38 DHCP 38 Wireless Settings 39 Summary 40 5 ROUTER CONFIGURATION Navigating Through the Router Configuration Pages Main Menu 41 Option Tabs 42 Welcome Screen 42 Notice Board 42 Password 43 Wizard 44 LAN Settings 44 Unit Configuration 44 DHCP Clients List 45 Wireless Settings 47 Configuration 47 Encryption 49 Configuring
Special Applications PC Privileges 67 URL Filter 69 Security 73 System Tools 75 Restart 75 Time Zone 76 Configuration 77 Upgrade 78 Status and Logs 78 Status 78 Usage 79 Logs 80 Support/Feedback 80 Support 81 Feedback 81 6 65 TROUBLESHOOTING Basic Connection Checks 83 Browsing to the Router Configuration Screens 83 Connecting to the Internet 84 Forgotten Password and Reset to Factory Defaults 85 Wireless Networking 85 Replacement Power Adapters 87 Alert LED 88 Recovering from Corrupted Software 88 Freque
How does a Device Obtain an IP Address and Subnet Mask? DHCP Addressing 95 Static Addressing 95 Auto-IP Addressing 95 C 95 TECHNICAL SPECIFICATIONS Standards 98 D SAFETY INFORMATION E END USER SOFTWARE LICENSE AGREEMENT F ISP INFORMATION GLOSSARY INDEX REGULATORY NOTICES FOR THE 11G CABLE/DSL ROUTER
ABOUT THIS GUIDE This guide describes how to install and configure the OfficeConnect 11g Cable/DSL Router (3CRWE554G72T and 3CRWE554G72TU). This guide is intended for use by those responsible for installing and setting up network equipment; consequently, it assumes a basic working knowledge of LANs (Local Area Networks) and Internet Router systems.
ABOUT THIS GUIDE Conventions Table 1 and Table 2 list conventions that are used throughout this guide. Table 1 Notice Icons Icon Notice Type Description Information note Information that describes important features or instructions. Caution 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.
Conventions 9 Example: ■ OfficeConnect 11g Cable/DSL Router User Guide ■ Part Number DUA0554-TAAA01 ■ 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 Documentation Product Registration 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 Router.
ABOUT THIS GUIDE
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, until recently, only large businesses could afford the networking advantage. The OfficeConnect® product range from 3Com has changed all this, bringing networks to the small office.
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 can have in your network.
Router Advantages Router Advantages Package Contents 13 The advantages of the Router include: ■ Shared Internet connection for both wired and wireless computers ■ High speed 802.
CHAPTER 1: INTRODUCING THE ROUTER Minimum System and Component Requirements Front Panel Your Router requires that the computer(s) and components in your network be configured with at least the following: ■ A computer with an operating system that supports TCP/IP networking protocols (for example Windows 95/98/NT/Me/2000/XP, Unix, Mac OS 8.5 or higher). ■ An Ethernet 10Mbps or 10/100 Mbps NIC for each computer to be connected to the four-port switch on your Router. ■ An 802.11b or 802.
Front Panel ■ The administrator has invoked the Reset to Factory Defaults command, or ■ The system software is in the process of being upgraded 15 In each of these cases, wait until the Router has completed the current operation and the alert LED is Off. Flashing slowly - The Router has completed the Reset to Factory Defaults process, and is waiting for you to reset the unit. To do this, remove power, wait 10 seconds and then re-apply power.
CHAPTER 1: INTRODUCING THE ROUTER 5 Cable/DSL Status LED Green (100Mbps link) / yellow (10Mbps link) If the LED is on, the link between the Router and the cable or DSL modem is OK. If the LED is flashing, the link is OK and data is being transmitted or received. If the LED is off, nothing is connected, the modem is switched off or there is a problem (refer to Chapter 6 “Troubleshooting”).
Rear Panel 17 10 Four 10/100 LAN ports Using suitable RJ-45 cable, you can connect your Router to a computer, or to any other piece of equipment that has an Ethernet connection (for example, a hub or a switch). The LAN ports will automatically set themselves to MDI or MDIX depending on the device to which they are connected and the type of cable used.
CHAPTER 1: INTRODUCING THE ROUTER
2 Introduction HARDWARE INSTALLATION 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 networking with the Router. Safety Information WARNING: Please read the “Safety Information” section in Appendix D before you start. VORSICHT: Bitte lesen Sie den Abschnitt “Wichtige Sicherheitshinweise” sorgfältig durch, bevor Sie das Gerät einschalten.
CHAPTER 2: HARDWARE INSTALLATION When positioning your Router, ensure: Using the Rubber Feet Wall Mounting ■ It is out of direct sunlight and away from sources of heat. ■ Cabling is away from power lines, fluorescent lighting fixtures, and sources of electrical noise such as radios, transmitters and broadband amplifiers. ■ 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.
Before you Install your Router Before you Install your Router 21 Before you install and configure your Router, you need the following additional information. If you do not have this information, contact your Internet Service Provider (ISP). Space is provided below for you to record this information.
CHAPTER 2: HARDWARE INSTALLATION If your ISP allocates IP information dynamically over a protocol other than PPPoE, you do not need any further information. This configuration is typical of cable connections. Powering Up the Router To power up the Router: 1 Plug the power adapter into the power adapter socket located on the back panel of the Router. 2 Plug the power adapter into a standard electrical wall socket.
Connecting the Router 23 4 Connect your computer to one of the four LAN ports on the Router using a twisted pair cable. Check that the corresponding LAN status LED on the Router lights. You have now completed the hardware installation 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.
CHAPTER 2: HARDWARE INSTALLATION
3 SETTING UP YOUR COMPUTERS 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.
CHAPTER 3: SETTING UP YOUR COMPUTERS Figure 6 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 7. Click OK. Figure 7 Internet Protocol (TCP/IP) Properties Screen 7 Restart your computer.
Obtaining an IP Address Automatically 27 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. 6 Ensure that the options Obtain an IP Address automatically, and Obtain DNS servers automatically are both selected. Click OK.
CHAPTER 3: SETTING UP YOUR COMPUTERS Disabling PPPoE and PPTP Client Software If you have PPPoE or PPTP 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 Connections Tab. A screen similar to Figure 8 should be displayed. 4 Select the Never Dial a Connection option.
4 Accessing the Wizard RUNNING 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 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.
CHAPTER 4: RUNNING THE SETUP WIZARD Figure 10 Router Login Screen 5 If the password is correct, the Country Selection screen will appear. Select the country you wish to configure the Router for, then click Apply. (Figure 11) Figure 11 Country Selection Screen 6 When you have selected a country either: ■ The Welcome screen will appear (Figure 12). Select the Wizard tab and click Wizard.
Accessing the Wizard ■ 31 If your Router has not been configured before, the Wizard will launch automatically (refer to Figure 13). 7 Click Next. 8 You will be guided step by step through a basic setup procedure.
CHAPTER 4: RUNNING THE SETUP WIZARD Password Figure 14 Change Administration Password Screen When the Change Administration Password screen (Figure 14) appears, type the Old Password, then a new password in both the New Password and Confirm Password boxes. 3Com recommends entering a new password when setting up the Router for the first time. The Router is shipped from the factory with a default password, admin. 1. Password is case sensitive. 2.
Accessing the Wizard 33 The Daylight Savings option advances the system clock by one hour. It does not cause the system clock to be updated for daylight savings time automatically. WAN Settings Figure 16 Internet Settings Screen This Internet Addressing Mode window allows you to set up the Router for the type of Internet connection you have. Before setting up your Internet connection mode, have the modem setting information from your ISP ready.
CHAPTER 4: RUNNING THE SETUP WIZARD PPPoE Mode Figure 17 PPPoE Screen To setup 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 PPPoE User Name text box. 2 Enter your PPP over Ethernet password in the PPPoE Password text box. 3 Enter your PPP over Ethernet service name in the PPPoE Service Name text box. This is optional. Not all ISPs require a PPPoE service name.
Accessing the Wizard 35 Dynamic IP Address Mode To setup the Router for use with a dynamic IP address connection: 1 Select the ISP provides configuration dynamically (via DHCP) and then click Next. See Figure 16. Figure 18 Hostname Screen 2 Some ISPs require a host name. If your ISP has this requirement, enter the host name in the Host Name text box (Figure 18) and click Next. The Clone MAC Address screen displays.
CHAPTER 4: RUNNING THE SETUP WIZARD Static IP Mode To setup the Router for use with a static IP address connection, use the following procedure: 1 Select ISP has provided a static IP address, (see Figure 16) and then click Next. Figure 20 displays. Figure 20 Static IP Mode Screen 2 Enter your IP Address in the IP Address text box. 3 Enter your subnet mask in the Subnet Mask text box. 4 Enter your ISP Router address in the Internet (ISP) Router Address text box.
Accessing the Wizard 37 PPTP Mode Figure 21 PPTP Mode Screen To setup the Router for use with a PPTP connection, use the following procedure: 1 Enter your PPTP server address in the PPTP Server Address text box. 2 Enter your PPTP user name in the PPTP User Name text box. 3 Enter your PPTP password in the PPTP Password text box. 4 Enter your Primary DNS Address and Secondary DNS address. Your ISP may provide you with primary and secondary DNS addresses.
CHAPTER 4: RUNNING THE SETUP WIZARD 6 IP settings must be used when establishing a PPTP connection. Fill in the Initial IP Address and the Initial Subnet Mask fields if your ISP has provided you with these settings. Alternatively, if the PPTP server is located in your DSL modem, click Suggest to select an IP address on the same subnet as the PPTP server. LAN Settings Figure 23 LAN IP Address Screen This screen displays a suggested LAN IP address and subnet mask of the Router.
Accessing the Wizard 39 make your required changes. To disable DHCP, select Do not enable the DHCP server. Click Next when you have finished. Wireless Settings Figure 25 Wireless Configuration Screen This screen displays the Channel and Service Area Name. It also allows you to change these settings. There are a maximum of 14 channels, the number available to you is dependent on the country you reside in.
CHAPTER 4: RUNNING THE SETUP WIZARD channel you select as this may be useful if you experience problems with your clients. Summary Figure 26 Configuration Summary Screen When you complete the Setup Wizard, a configuration summary will display. Verify the configuration information of the Router and then click Finish to save your settings. 3Com recommends that you print this page for your records.
5 ROUTER CONFIGURATION Navigating Through the Router Configuration Pages Main Menu 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 your browser. The default URL is http://192.168.1.1 but if you changed the Router LAN IP address during initial configuration, use the new IP address instead.
CHAPTER 5: ROUTER CONFIGURATION Option Tabs ■ Status and Logs — displays the current status and activity logs of the Router. ■ Support/Feedback — contains a comprehensive online help system and allows you to provide 3Com with feedback on your Router. Each corresponding menu page may also provide sub-sections which are accessed through the use of tabs (see Figure 27 for example). To access a sub-section, simply click on the required tab.
Welcome Screen Password 43 Figure 28 Password Screen Changing the Administration Password You can change the password to prevent unauthorized access to the Administration System. To do this: 1 Enter the current password in the Old Password field 2 Enter the new password in the New Password field 3 Enter the new password again in the Confirm Password field 4 Click Apply to save the new password The password is case sensitive. If you have forgotten your password you need to reset the Router.
CHAPTER 5: ROUTER CONFIGURATION Wizard Figure 29 Wizard Screen Click WIZARD... to launch the configuration wizard. Refer to Chapter 4 for information on how to run the wizard.
LAN Settings 45 The LAN Settings screen is used to specify the LAN IP address of your Router, and to configure the DHCP server. 1 Select Unit Configuration and then specify the Router IP Address and Subnet Mask in the LAN Settings field. The default IP address of the Router is 192.168.1.1. 2 If you want to use the Router as a DHCP Server, click in the Enable check box. 3 Clicking Auto Range will automatically choose the largest available range of addresses for your network.
CHAPTER 5: ROUTER CONFIGURATION ■ client’s network card. ■ Client Type — Whether the client is connected to the Router by wired or wireless connection. ■ Fix — This box is checked if the IP address is fixed to the MAC address of the client’s network card. Clients that have fixed addresses will get the same IP address each time they connect. Check the box to fix an association. Uncheck the box to remove the fixed association.
Wireless Settings 47 Wireless Settings To improve the security of your wireless network, 3Com recommends that you: 1. Change the SSID from its default value - see page 48 2. Enable Encryption - see page 49 3. Enable Connection Control - see page 53 Configuration Figure 32 Configuration Screen Enable Wireless Networking Allows you to enable/disable the wireless section of your LAN.
CHAPTER 5: ROUTER CONFIGURATION Choose the Clear Channel Select option to automatically choose the clearest channel. The Router will check for the clearest channel whenever it is rebooted, powered up, and when the Clear Channel Select option is first applied. Valid channels are country dependent. See “Channels” on page 119 for a list of channels approved by each country. Service Area Name/SSID This allows you to name your Wireless network.
Wireless Settings Encryption 49 When setting up wireless networks, it is important to remember that with encryption disabled, anyone with a Wireless PC can eavesdrop on your network. 3Com recommends that you get the network working with encryption disabled first and then enable it as the last step. This will simplify setting up your network. The Router supports two types of encryption: ■ WPA — Wi-Fi Protected Access (WPA) is a 256 bit encryption method with keys that change over time.
CHAPTER 5: ROUTER CONFIGURATION Figure 33 Encryption Keys Screen showing WPA configuration To enter the pre-shared key as hexadecimal digits: 1 Select Enabled - Manual Pre-shared Key from the WPA Encryption Type drop-down box. 2 Enter a pair of hexadecimal digits in each of the 32 Key fields. Each field can contain a hexadecimal number from 00 to ff, for example 1a. 3 Click Apply to generate the key.
Wireless Settings 51 Encryption Keys Figure 34 Encryption Keys Screen showing WEP configuration A Key is a hexadecimal (0-9, A-F) number used to encrypt and decrypt the data. There can be up to 4 keys and each key can be as long as 26 digits. The Router also offers a number of methods for converting plain text into hex keys. The text is much easier to remember than hex keys but it relies on your wireless adapters also supporting this feature.
CHAPTER 5: ROUTER CONFIGURATION WEP and 13 characters for 128 bit WEP. You must enter a separate string for each of the 4 Keys. You can leave a string blank provided this Key is not selected as the Active Transmit Key. ■ Passphrase - This is another common method and similar to the 3Com Encryption string. In 64 bit WEP, the passphrase will generate 4 different keys. However, in 128 bit WEP, this method only generates 1 key which is replicated for all 4 keys.
Wireless Settings Connection Control 53 Figure 35 Connection Control Screen A higher level of security can be achieved for your wireless network if you use both encryption and you specify only certain wireless computers can connect to the Router. By default, any wireless computer that has the same Service Area Name/SSID, channel and encryption settings as the Router can connect to it. Select Only Authorized Wireless PCs can connect to the Router to enable and configure this feature.
CHAPTER 5: ROUTER CONFIGURATION To create a list of Wireless computers that can access the Router: 1 Press New. The screen shown in Figure 36 opens. 2 Select the MAC addresses of the Wireless PCs for which you want to allow access. To select multiple MAC addresses, hold down the Ctrl key while clicking on the addresses.
Wireless Settings 55 Once an entry has been deleted it cannot be undone. Please wait 30 seconds for changes to take effect. Client List Figure 38 Client List Screen The Wireless Client List provides details on the devices that are connected to the Wireless LAN. The list is only created when Wireless Networking is enabled. For each device that is connected to the Wireless LAN, the MAC address and Connection Speed of that device is displayed.
CHAPTER 5: ROUTER CONFIGURATION Some 3Com Wireless Network Adapters allow you to import Wireless configurations via a ‘profile’. The Router can generate a profile so that you do not need to configure your Wireless PCs manually. The profile contains three items as follows: ■ Service Area Name/SSID of the Router This is configured on the Configuration tab under the Wireless Settings option.
Internet Settings Internet Settings 57 Before you can configure the Router, you need to know the IP information allocation method used by your ISP. There are four different ways that ISPs can allocate IP information, as described below: 1 Static IP Address (DSL or Cable) The ISP provides the IP addressing information for you to enter manually.
CHAPTER 5: ROUTER CONFIGURATION When you install the Router, you will not need to use the dialup VPN on your PC anymore. Connection to ISP Figure 40 Connection to ISP Screen Before beginning this section, ensure you have the required information from your ISP. (See “Before you Install your Router” on page 21.) Select Internet Settings from the main menu to display Connection to ISP (Figure 40). Choose an IP Allocation Mode from the drop down box.
Internet Settings 59 Static IP Address Figure 41 Connection Parameters Screen - Static IP To setup the Router for use with a Static IP address connection: 1 Select Static IP Address (to be specified manually) in the IP Allocation Mode field (Figure 41). 2 Enter your IP Address in the IP Address text box. This information, along with the rest of the information in this screen, should be provided to you by your ISP.
CHAPTER 5: ROUTER CONFIGURATION Dynamic IP Address Figure 42 Connection Parameters Screen - Dynamic IP If this mode is selected, your IP Address, Subnet Mask, and DNS Address will be obtained automatically from your ISP. They are not displayed on this screen, but may be viewed on the Status screen (click on Status and Logs on the left hand menu bar). To setup the Router for use with a dynamic IP address connection: 1 Select Dynamic IP Address (automatically allocated) in the IP Allocation Mode field.
