OfficeConnect® Cable/DSL Gateway Wireless Cable/DSL Gateway User Guide 3C857 3CRWE52196 (3CRWE52196 Only) http://www.3com.com/ Part No.
3Com Corporation 5400 Bayfront Plaza Santa Clara, California 95052-8145 Copyright © 2002, 3Com Technologies. 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 Technologies.
CONTENTS ABOUT THIS GUIDE Naming Convention 7 Conventions 8 Feedback about this User Guide Related Documentation 9 Product Registration 9 1 8 INTRODUCING THE GATEWAY OfficeConnect Cable/DSL Gateway and Wireless Cable/DSL Gateway Gateway Advantages 13 Package Contents 13 Minimum System and Component Requirements 14 Front Panel 14 Rear Panel 16 2 HARDWARE INSTALLATION Introduction 19 Safety Information 19 Positioning the Gateway 19 Using the Rubber Feet 20 Wall Mounting 20 Before you Install your Gateway
Windows 95/98/ME 27 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 GATEWAY CONFIGURATION Navigating Through the Gateway Configuration Pages Main Menu 41 Option Tabs 42 Welcome Screen 42 Notice Board 43 Password 43 Wizard 44 LAN Settings 44 Unit Configuration 44 DHCP Clients List 45 Wireless Settings 46 Configuration 46 Enc
PC Privileges 65 Security 67 System Tools 69 Restart 69 Time Zone 69 Configuration 70 Upgrade 71 Status and Logs 72 Status 73 Logs 73 Support 73 6 TROUBLESHOOTING Basic Connection Checks 75 Browsing to the Gateway Configuration Screens 75 Connecting to the Internet 76 Forgotten Password and Reset to Factory Defaults 76 Wireless Networking 77 Alert LED 79 Recovering from Corrupted Software 79 Frequently Asked Questions 80 A USING DISCOVERY Running the Discovery Application 83 Windows Installation (95/98/
C TECHNICAL SPECIFICATIONS D SAFETY INFORMATION E END USER SOFTWARE LICENCE AGREEMENT F ISP INFORMATION GLOSSARY INDEX REGULATORY NOTICES FOR THE CABLE/DSL GATEWAY REGULATORY NOTICES FOR THE WIRELESS CABLE/DSL GATEWAY
ABOUT THIS GUIDE This guide describes how to install and configure the OfficeConnect Cable/DSL Gateway (3C857) and the OfficeConnect Wireless Cable/DSL Gateway (3CRWE52196). All procedures in this guide apply to both Gateways except when stated. 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 gateway 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 Cable/DSL Gateway and Wireless Cable/DSL Gateway User Guide ■ Part Number DUA0085-5AAA04 ■ 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 Gateway document set includes one Installation Guide.
ABOUT THIS GUIDE
1 INTRODUCING THE GATEWAY 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 GATEWAY Figure 1 Example Network Without a Gateway When you use the Gateway in your network (Figure 2), it becomes your connection to the Internet. Connections can be made directly to the Gateway, or to an OfficeConnect Switch or Hub, expanding the number of computers you can have in your network.
Gateway Advantages Gateway Advantages Package Contents 13 The advantages of the Gateway include: ■ Shared Internet connection for wired computers.
CHAPTER 1: INTRODUCING THE GATEWAY Minimum System and Component Requirements Front Panel Your Gateway 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 Gateway. ■ An 802.
Front Panel ■ The Gateway has just been started up and is running a self-test routine, or ■ 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 Gateway has completed the current operation and the alert LED is Off. Flashing slowly - The Gateway has completed the Reset to Factory Defaults process, and is waiting for you to reset the unit.
CHAPTER 1: INTRODUCING THE GATEWAY 4 Wireless LAN (WLAN) Status LED *Available on the OfficeConnect Wireless Cable/DSL Gateway only Yellow If the LED is on it indicates that wireless networking is enabled. If the LED is flashing, data is being transmitted or received. If the LED is off, the Wireless LAN has been disabled in the Gateway, or there is a problem. Refer to Chapter 6 “Troubleshooting”.
Rear Panel 17 7 Power Adapter Socket Only use the power adapter supplied with this Gateway. Do not use any other adapter. 8 Ethernet Cable/DSL port Use the supplied patch cable to connect the Gateway to the Ethernet port on your cable or DSL modem. The port will automatically adjust to the correct speed and duplex.
CHAPTER 1: INTRODUCING THE GATEWAY
2 Introduction HARDWARE INSTALLATION This chapter will guide you through a basic installation of the Gateway, including: ■ Connecting the Gateway to the Internet. ■ Connecting the Gateway to your network. ■ Setting up your computers for networking with the Gateway. 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 connections to computers in both horizontal and vertical directions, allowing wider coverage. When positioning your Gateway, 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.
Before you Install your Gateway 21 CAUTION: Only wall mount single units, do not wall mount stacked units. Before you Install your Gateway Before you install and configure your Gateway, 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 Gateway To power up the Gateway: 1 Plug the power adapter into the power adapter socket located on the back panel of the Gateway. 2 Plug the power adapter into a standard electrical wall socket.
Connecting the Gateway 23 3 Connect the cable or DSL modem to the Internet. 4 Connect your computer to one of the four LAN ports on the Gateway using a twisted pair cable. Check that the corresponding LAN status LED on the Gateway lights. You have now completed the hardware installation of your Gateway. Next you need to set up your computers so that they can make use of the Gateway to communicate with the Internet.
CHAPTER 2: HARDWARE INSTALLATION
3 SETTING UP YOUR COMPUTERS The Gateway 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 Gateway setup program is Web-based, which means that it is accessed through your Web browser (Netscape Navigator or Internet Explorer). To use the Setup Wizard: 1 Ensure that you have at least one computer connected to the Gateway. Refer to Chapter 2 for details on how to do this. 2 Launch your Web browser on the computer. 3 Enter the following URL in the location or address field of your browser: http://192.168.1.1 (Figure 9). The Login screen displays.
CHAPTER 4: RUNNING THE SETUP WIZARD Figure 10 Gateway Login Screen 5 If the password is correct, the Country Selection screen will appear (on the Wireless Cable/DSL Gateway only). Select the country you wish to configure the gateway for, then click Apply. (Figure 11) Figure 11 Country Selection Screen 6 When you have logged in (Cable/DSL Gateway) or selected a country (Wireless Cable/DSL Gateway) either: ■ The Welcome screen will appear (Figure 12). Select the Wizard tab and click Wizard.
Accessing the Wizard or ■ If your Gateway 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 Gateway for the first time. The Gateway 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 Gateway 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 gateway 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 Gateway 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 Gateway 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 gateway address in the Internet (ISP) Gateway Address text box.
Accessing the Wizard 37 PPTP Mode Figure 21 PPTP Mode Screen To setup the gateway 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 Gateway.
Accessing the Wizard 39 make your required changes. To disable DHCP, select Do not enable the DHCP server. Click Next when you have finished. If you have a Cable/DSL Gateway, your Gateway is now configured and ready for use. See Chapter 5 for a detailed description of the Gateway configuration screens. If you have a Wireless Cable/DSL Gateway refer to “Wireless Settings” below. Wireless Settings The following section applies to the Wireless Cable/DSL Gateway only.
CHAPTER 4: RUNNING THE SETUP WIZARD It is very important that you set up your wireless clients to use the same Service Area Name or SSID as the one you use on this screen. If your clients use a different Service Area Name then they will not be able to communicate with the Gateway. The choice of channel is less important as Clients will generally search all of the available channels.
5 GATEWAY CONFIGURATION Navigating Through the Gateway Configuration Pages Main Menu This chapter describes all the screens available through the Gateway configuration pages, and is provided as a reference. To get to the configuration pages, browse to the Gateway 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 Gateway LAN IP address during initial configuration, use the new IP address instead.
CHAPTER 5: GATEWAY CONFIGURATION Option Tabs ■ Status and Logs - displays the current status and activity logs of the Gateway. ■ Support - contains a comprehensive online help system 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. Getting Help On every screen, a Help button is available which provides access to the context-sensitive online help system.
Welcome Screen Notice Board 43 Figure 28 Notice Board Screen The Notice Board is used to display configuration warning messages. For example, you would be warned if you had disabled the Firewall. Password Figure 29 Password Screen Changing the Administration Password You can change the password to prevent unauthorized access to the Administration System.
CHAPTER 5: GATEWAY CONFIGURATION If you have forgotten your password you need to reset the Gateway. See “Forgotten Password and Reset to Factory Defaults” on page 76 Wizard Figure 30 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 Gateway, and to configure the DHCP server. 1 Select Unit Configuration and then specify the Gateway IP Address and Subnet Mask in the LAN Settings field. The default IP address of the Gateway is 192.168.1.1. 2 If you want to use the Gateway 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: GATEWAY CONFIGURATION As the IP address is fixed to a MAC address, then each particular computer will normally be issued with the same IP address. The only time that a PC will get a different IP address is if the unit is reset to factory defaults or the DHCP server has run out of IP addresses. Wireless Settings The following section applies to the Wireless Cable/DSL Gateway only. To improve the security of your wireless network, 3Com recommends that you: 1.
Wireless Settings 47 channel number. Usually the Wireless computers will scan to find the correct channel, but if they don't you must configure them to use the same Channel number as the Gateway. Valid channels are country dependent. See “Channels” on page 115 for a list of channels approved by each country. Service Area Name/SSID This allows you to name your Wireless network. The field will accept any alphanumeric string and has a maximum length of 32 characters.
CHAPTER 5: GATEWAY CONFIGURATION Encryption Figure 34 Encryption Screen Wired Equivalent Privacy or WEP allows you to encrypt the traffic between your Wireless PC and the Gateway. It is important to remember that with WEP disabled anyone with a Wireless PC can eavesdrop on your network. 3Com recommends that you get the network working with WEP disabled first and then enable it as the last step. This will simplify setting up your network.
Wireless Settings 49 Encryption Keys Figure 35 Encryption Keys Screen 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 Gateway 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: GATEWAY CONFIGURATION ■ 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. The passphrase can be up to 31 characters long and may contain any alphanumeric characters. Select from the drop down list the key generation method you wish to use.
Wireless Settings 51 same Service Area Name/SSID, channel and encryption settings as the Gateway can connect to it. Select Only Authorised Wireless PCs can connect to the Gateway to enable and configure this feature. If you enable this feature from a Wireless PC, it will automatically be added to the Authorised Wireless PC list. Authorised Wireless PCs Figure 37 Connection Control Detail Screen To create a list of Wireless computers that can access the Gateway: 1 Press New.
CHAPTER 5: GATEWAY CONFIGURATION 3 Press Add. Click Close to discard all changes. Modifying a MAC Address 1 Click on the MAC address to be modified in the table (Figure 38) 2 Modify the MAC address. The MAC address can be edited manually, or a different MAC address may be selected from the drop down list of detected addresses. 3 Press Apply to accept the changes. Figure 38 MAC Address Table Click Close to discard all changes.
Wireless Settings Client List 53 Figure 39 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. As you connect more devices to the Wireless LAN, the client list will grow to a maximum of 32 (the maximum number of wireless devices that the Gateway can support).
CHAPTER 5: GATEWAY CONFIGURATION ■ Service Area Name/SSID of the Gateway This is configured on the Configuration tab under the Wireless Settings option. ■ Encryption settings from the Gateway This is configured on the Encryption tab under the Wireless Settings option. ■ Profile Name This is used to identify the profile once it has been imported into the Wireless Network Adapter configuration software.
Internet Settings Internet Settings 55 Before you can configure the Gateway, 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: GATEWAY CONFIGURATION When you install the Gateway, you will not need to use the dialup VPN on your PC anymore. Connection to ISP Figure 41 Connection to ISP Screen Before beginning this section, ensure you have the required information from your ISP. (See “Before you Install your Gateway” on page 21.) Select Internet Settings from the main menu to display Connection to ISP (Figure 41). Choose an IP Allocation Mode from the drop down box.
Internet Settings 57 Static IP Address Figure 42 Connection Parameters Screen - Static IP To setup the Gateway for use with a Static IP address connection: 1 Select Static IP Address (to be specified manually) in the IP Allocation Mode field (Figure 42). 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: GATEWAY CONFIGURATION Dynamic IP Address Figure 43 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).
Internet Settings 59 ■ Use this PC’s MAC address - This field is automatically filled in with the MAC address of the PC you are using to configure the Gateway. You should use this address only if you were previously using this computer to connect directly to your modem. ■ Enter a new MAC address manually - Use this option if you want to specify a new MAC address. Enter the new MAC address. 5 Check all settings and click Apply.
CHAPTER 5: GATEWAY CONFIGURATION 6 Enter your PPP over Ethernet service name in the PPPoE Service Name text box. Not all ISPs require a PPPoE service name. Only enter a service name if your ISP requires this. 7 Select an idle time from the Maximum Idle Time drop-down list. This value will correspond to the amount of idle time (no Internet activity) that will pass before the Gateway automatically ends your PPP over Ethernet session.
Firewall 61 6 Select an idle time from the Maximum Idle Time drop-down list. This value will correspond to the amount of idle time (no Internet activity) that will pass before the Gateway automatically ends your PPTP session. 7 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.
CHAPTER 5: GATEWAY CONFIGURATION Virtual Server Activating and configuring a virtual server allows one or more of the computers on your network to function as a public server. For example, one of your computers could be configured as an FTP server, allowing others outside of your office network to download files of your choosing. Or, if you have created a Web site, you can configure one of your computers as a Web server, so that others can view your Web site.
Firewall 63 The port numbers are specified using a comma-separated list, with hyphens to denote port number ranges. So for example, entering 2, 3, 5-7 would cause ports 2, 3, 5, 6, and 7 to be activated. Special Applications Figure 49 Special Applications Screen Select Special Applications tab to display Authorized Application setup screen. (Figure 49) Some software applications require special or multiple connections to the Internet and these would normally be blocked by the firewall.
CHAPTER 5: GATEWAY CONFIGURATION Figure 50 Special Application Settings Screen Or select Other to specify a suitable name for the special application and then enter a value in the Trigger Port and Incoming Ports text boxes (Figure 50). These values correspond to the outbound port numbers issued by the application. The port numbers are specified using a comma-separated list, with hyphens to denote port number ranges.
Firewall PC Privileges 65 Figure 52 PC Privileges Screen Select PC Privileges to display the PC Privilege setup screen (Figure 52). Access from the local network to the Internet can be controlled on a computer-by-computer basis. In the default configuration the Gateway will allow all connected computers unlimited access to the Internet. PC Privileges allows you to assign different access rights for different computers on your network.
CHAPTER 5: GATEWAY CONFIGURATION In addition to the four authorised services listed, you can choose to allow or block access to other services. You can either: ■ Allow all other services with exceptions, or ■ Block all other services with exceptions 4 To do this, select Allow or Block from the drop down menu and enter the exceptions into the text box. The port numbers are specified using a comma-separated list, with hyphens to denote port number ranges.
Firewall 67 4 Select authorized services by clicking in the appropriate check box(es). In addition to the four authorised services listed, you can choose to allow or block access to other services. You can either: ■ Allow all other services with exceptions, or ■ Block all other services with exceptions See step 4 of the previous section for more details. 5 Click Add to save the settings. Security Select Security to display the Advanced Settings screen (Figure 55).
CHAPTER 5: GATEWAY CONFIGURATION This feature is enabled by clicking on the check box so that a tick can be seen and then select Apply. 3Com recommends that you leave this disabled. Disable Firewall The Gateway contains a firewall that detects attack patterns used by hackers on the Internet and once detected will block their access to your network. When an attack is detected a log entry will be generated and the Alert LED will be lit for 2 seconds.
System Tools System Tools 69 The main frame of the System Tools screen includes four administration items: Restart, Time Zone, Configuration, and Upgrade (Figure 56). Restart Figure 56 Restart Screen If your Gateway is not operating correctly, you can choose to restart the Gateway by selecting Restart the Gateway, simulating the effect of power cycling the unit. No configuration information will be lost but the log files will be erased.
CHAPTER 5: GATEWAY CONFIGURATION Choose the time zone that is closest to your actual location. The time zone setting is used by the system clock when displaying the correct time in the log files. If you use Daylight saving tick the Enable Daylight savings box, and then click Apply (Figure 57). The Gateway reads the correct time from NTP servers on the Internet and sets its system clock accordingly. The Daylight Savings option merely advances the system clock by one hour.
System Tools 71 Reset to Factory Default If you want to reset the settings on your Gateway to those that were loaded at the factory, click RESET. You will lose all your configuration changes. The Gateway LAN IP address will revert to 192.168.1.1, and the DHCP server on the LAN will be enabled. You may need to reconfigure and restart your computer to re-establish communication with the Gateway.
CHAPTER 5: GATEWAY CONFIGURATION Status and Logs Figure 60 Status and Logs Screen Selecting Status and Logs from the main menu displays the Status and Logs screens (Figure 60) in your Web browser window. The Status screen displays a tabular representation of your network and Internet connection.
Status and Logs Status Logs 73 Status will display the current unit status, including a summary of the configuration Logs will allow you to view both the normal events, and security threats logged by the Gateway You may be asked to refer to the information on the Status and Logs screens if you contact your supplier for technical support.
CHAPTER 5: GATEWAY CONFIGURATION
6 Basic Connection Checks Browsing to the Gateway Configuration Screens TROUBLESHOOTING ■ Check that the Gateway is connected to your computers and to the cable/DSL modem, and that all the equipment is powered on. Check that the LAN and WAN port link status LEDs on the Gateway are illuminated, and that any corresponding LEDs on the cable/DSL modem and the NIC (Wireless Gateway only) are also illuminated. ■ Ensure that the computers have completed their start-up procedure and are ready for use.
CHAPTER 6: TROUBLESHOOTING choose Run and then enter winipcfg. Check that the computer has an IP address of the form 192.168.1.xxx (where xxx is in the range 2-254), the subnet mask is 255.255.255.0, and the default Gateway is 192.168.1.1 (the address of the Gateway). If these are not correct, use the Release and Renew functions to obtain a new IP address from the Gateway. Under Windows 2000, use the ipconfig command-line utility to perform the same functions.
Wireless Networking 77 Gateway connection to the Internet. Also, other computer users will lose their network connections whilst this process is taking place, so choose a time when this would be convenient. 1 Remove power from the Gateway. 2 Disconnect all your computers and the cable/DSL modem from the Gateway. 3 Using a straight through Ethernet cable, connect the Ethernet Cable/DSL port on the rear of the Gateway to any one of the LAN ports. 4 Re-apply power to the Gateway.
CHAPTER 6: TROUBLESHOOTING ■ Ensure that the Wireless Clients are using the same SSID or Service Area Name as the Gateway. The SSID is case-sensitive ■ Ensure that you are using the same level of security on all of your wireless computers (None, 40/64 or 128 bit) and that all devices are using the same keys, and the same order of keys where appropriate.
Alert LED 79 centre of the network with Wireless computers distributed around it. Applications are generally available with the computer wireless card to carry out a site survey. Use this application to find the optimal siting for your wireless computer. Consult your Computer Card documentation and vendor for more details. Alert LED Recovering from Corrupted Software The Alert LED will flash when the Gateway unit is first powered up while the system software checks the hardware for proper operation.
CHAPTER 6: TROUBLESHOOTING 1 Remove power from the Gateway and disconnect the Cable/DSL modem and all your computers, except for the one computer with the software image. 2 You will need to reconfigure this computer with the following static IP address information: ■ IP address: 192.168.1.2 ■ Subnet mask: 255.255.255.0 ■ Default Gateway address: 192.168.1.1 3 Restart the computer, and re-apply power to the Gateway.
Frequently Asked Questions 81 There are only 4 LAN ports on the Gateway. How are additional computers connected? You can expand the number of connections available on your LAN by using hubs, switches and wireless access points connected to the Gateway. 3Com wireless access points and OfficeConnect hubs and switches provide a simple, reliable means of expanding your network; contact your supplier for more information, or visit: http://www.3com.
CHAPTER 6: TROUBLESHOOTING
A Running the Discovery Application USING DISCOVERY 3Com provides a user friendly Discovery application for detecting the Gateway on the network. Windows Installation (95/98/2000/Me/NT) 1 Insert the Gateway CD-ROM in the CD-ROM drive on your computer. A menu will appear; select Gateway Discovery. Discovery will find the Gateway even if it is unconfigured or misconfigured.
APPENDIX A: USING DISCOVERY Figure 63 Discovered Gateway Screen 3 Figure 64 shows an example Discovered Devices screen. Highlight the Wireless Cable/DSL Gateway by clicking on it, and press Next. Figure 64 Discovery Finish Screen 4 Click on Finish to launch a web browser and display the login page for the Gateway.
B IP ADDRESSING The Internet Protocol Suite The Internet protocol suite consists of a well-defined set of communications protocols and several standard application protocols. Transmission Control Protocol/Internet Protocol (TCP/IP) is probably the most widely known and is a combination of two of the protocols (IP and TCP) working together.
APPENDIX B: IP ADDRESSING For your network to work correctly, all devices on the network must have: ■ The same sub-network address. ■ The same subnet mask. The only value that will be different is the specific host device number. This value must always be unique. An example IP address is ‘192.168.100.8’. However, the size of the network determines the structure of this IP Address. In using the Gateway, you will probably only encounter two types of IP Address and subnet mask structures.
How does a Device Obtain an IP Address and Subnet Mask? 87 This type of IP Address operates on a subnet mask of ‘255.255.0.0’. See Table 4 for an example about how a network (only four computers represented) and a Gateway might be configured. Table 4 IP Addressing and Subnet Masking How does a Device Obtain an IP Address and Subnet Mask? DHCP Addressing Device IP Address Subnet Mask PC 1 192.168.100.8 255.255.0.0 PC 2 192.168.201.30 255.255.0.0 PC 3 192.168.113.155 255.255.0.0 PC 4 192.
APPENDIX B: IP ADDRESSING 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.
C TECHNICAL SPECIFICATIONS This section lists the technical specifications for the OfficeConnect Cable/DSL Gateway and the Wireless Cable/DSL Gateway. Cable/DSL Gateway Interfaces Cable or DSL modem connection - 10/100 FD. LAN connection - four 10Mbps/100Mbps dual speed Ethernet ports (10BASE-T/100BASE-TX) Operating Temperature 0 °C to 40 °C (32 °F to 105 °F) Power 7VA, 23.9 BThU/hr Humidity 0 % to 90 % (non-condensing) humidity Dimensions ■ Width = 220 mm (8.7 in.) ■ Depth = 135 mm (5.3 in.
APPENDIX C: TECHNICAL SPECIFICATIONS Safety: UL 1950, EN 60950 CSA 22.2 #950 IEC 60950 EMC: EN 55022 Class B EN 55024 AS/NZS 3548 B FCC Part 15 Class B* ICES-003 Class B VCCI Class B CNS 13438 Class A Environmental: EN 60068 (IEC 68) *See “Safety Information” on page 95 for conditions of operation. System Requirements Operating Systems The Cable/DSL Gateway will support the following Operating Systems: Ethernet Performance Cable Specifications ■ Windows 95/98 ■ Windows NT 4.
Wireless Cable/DSL Gateway Interfaces Cable or DSL modem connection - 10/100 FD. LAN connection - four 10Mbps/100Mbps dual speed Ethernet ports (10BASE-T/100BASE-TX) WLAN Interface Standard IEEE 802.11b, Direct Sequence Spread Spectrum (DSSS) Transmission rate: 11Mbps, automatic fallback to 5.5, 2 or 1Mbps Maximum channels: 13 Range up to 304.8m (1000ft) Frequency: (US/Canada/Europe) 2.400-2.4835 GHz Sensitivity: 1,2,5.
APPENDIX C: TECHNICAL SPECIFICATIONS Standards Functional: ISO 8802/3 IEEE 802.3 IEEE 802.11b, WiFi Safety: UL 1950, EN 60950 CSA 22.2 #950 IEC 60950 EMC: EN 55022 Class B EN 55024 AS/NZS 3548 B FCC Part 15 Class B* ICES-003 Class B CNS 13438 Class A ETS 300-826 Radio CFR 47 FCC Part 15.207, 15.209, 15.247 and 15.249. ETS 300 328 (2.4 GHz ISM band wide band transmission systems. Environmental: EN 60068 (IEC 68) *See “Safety Information” on page 95 for conditions of operation.
Wireless Performance Cable Specifications The Wireless Cable/DSL Gateway complies with the IEEE 802.11b specification and conforms to the WiFi interoperability test standard. The Wireless Cable/DSL Gateway supports the following cable types and maximum lengths: ■ Category 3 (Ethernet) or Category 5 (Fast Ethernet or Dual Speed Ethernet) Twisted Pair — shielded and unshielded cable types. ■ Maximum cable length of 100m (327.86 ft).
APPENDIX C: TECHNICAL SPECIFICATIONS
D 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 Gateway generates and uses radio frequency (rf) energy. In some environments, the use of rf energy is not permitted. The user should seek local advice on whether or not rf energy is permitted within the area of intended use.
APPENDIX D: SAFETY INFORMATION WARNING: Disconnect the power adapter before moving the unit. WARNING: RJ-45 ports. These are shielded RJ-45 data sockets. They cannot be used as telephone sockets. Only connect RJ-45 data connectors to these sockets. Wichtige Sicherheitshinweise VORSICHT: Warnhinweise enthalten Anweisungen, die Sie zu Ihrer eigenen Sicherheit befolgen müssen. Alle Anweisungen sind sorgfältig zu befolgen.
VORSICHT: Es sind keine von dem Benutzer zu ersetzende oder zu wartende Teile in dem Gerät vorhanden. Wenn Sie ein Problem mit dem Gateway haben, das nicht mittels der Fehleranalyse in dieser Anleitung behoben werden kann, setzen Sie sich mit Ihrem Lieferanten in Verbindung. VORSICHT: Vor dem Ausbau des Geräts das Netzadapterkabel herausziehen. VORSICHT: RJ-45-Anschlüsse. Dies sind abgeschirmte RJ-45-Datenbuchsen. Sie können nicht als Telefonanschlußbuchsen verwendet werden.
APPENDIX D: SAFETY INFORMATION AVERTISSEMENT: L’appareil fonctionne à une tension extrêmement basse de sécurité qui est conforme à la norme CEI 950. Ces 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.
E END USER SOFTWARE LICENCE AGREEMENT 3Com Corporation END USER SOFTWARE LICENSE AGREEMENT YOU SHOULD CAREFULLY READ THE FOLLOWING TERMS AND CONDITIONS BEFORE DOWNLOADING, INSTALLING AND USING THIS PRODUCT, THE USE OF WHICH IS LICENSED BY 3COM CORPORATION ("3COM") TO ITS CUSTOMERS FOR THEIR USE ONLY AS SET FORTH BELOW. DOWNLOADING, INSTALLING OR OTHERWISE USING ANY PART OF THE SOFTWARE OR DOCUMENTATION INDICATES THAT YOU ACCEPT THESE TERMS AND CONDITIONS.
APPENDIX E: END USER SOFTWARE LICENCE AGREEMENT and developed solely at private expense. The Software is delivered as "Commercial Computer Software" as defined in DFARS 252.227-7014 (June 1995) or as a commercial item as defined in FAR 2.101(a) and as such is provided with only such rights as are provided in this Agreement, which is 3Com's standard commercial license for the Software. Technical data is provided with limited rights only as provided in DFAR 252.227-7015 (Nov. 1995) or FAR 52.
F Information Regarding Popular ISPs ISP INFORMATION WAN Types Characteristics Popular ISPs Dynamic IP Cable modem ISP, non-hostname based. Need to clone the MAC address in the Advanced tab of the Internet Settings page. MediaOne, RoadRunner, Optimum Online, Time Warner, Charter, Adelphia, Metrocast. (Clone MAC) Dynamic IP (Hostname) PPPoE (DSL) PPTP Cable ISP, Requires Hostname to @Home Network, Cogoco, authenticate ie. cx213818-B.
APPENDIX F: ISP INFORMATION Static (DSL) Static (Cable) DSL Modem, always on. Need to enter ALL IP information from ISP in the Static IP address section of the Internet Settings page.
GLOSSARY 802.11b 10BASE-T The IEEE standard to which the 3Com OfficeConnect Wireless Cable/DSL Gateway conforms. This standard provides for 1,2,5 and 11 Mbps data rates and a set of fundamental signaling methods and other services (see WECA). The IEEE specification for 10 Mbps Ethernet over Category 3, 4 or 5 twisted pair cable. 100BASE-TX The IEEE specification for 100 Mbps Fast Ethernet over Category 5 twisted-pair cable.
GLOSSARY 802.3 standard for Ethernet and is an operation that takes place in a few milliseconds. Bandwidth The information capacity, measured in bits per second, that a channel can transmit. The bandwidth of Ethernet is 10 Mbps, the bandwidth of Fast Ethernet is 100 Mbps. The bandwidth for 802.11b wireless is 11Mbps. Category 3 Cables One of five grades of Twisted Pair (TP) cabling defined by the EIA/TIA-586 standard.
GLOSSARY 105 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. DSL modem Encryption ESSID Ethernet Ethernet Address Fast Ethernet DSL stands for digital subscriber line. A DSL modem uses your existing phone lines to send and receive data at high speeds. A method for providing a level of security to wireless data transmissions.
GLOSSARY Hub A device that regenerates LAN traffic so that the transmission distance of that signal can be extended. Hubs are similar to repeaters, in that they connect LANs of the same type; however they connect more LANs than a repeater and are generally more sophisticated. IEEE Institute of Electrical and Electronics Engineers. This American organization was founded in 1963 and sets standards for computers and communications. IETF Internet Engineering Task Force.
GLOSSARY 107 MAC Media Access Control. A protocol specified by the IEEE for determining which devices have access to a network at any one time. MAC Address Media Access Control Address. Also called the hardware or physical address. A layer 2 address associated with a particular network device. Most 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.
GLOSSARY SSID Service Set Identifier. Some vendors of wireless products use SSID interchangeably with ESSID. Subnet Address An extension of the IP addressing scheme that allows a site to use a single IP network address for multiple physical networks. Subnet mask A subnet mask, which may be a part of the TCP/IP information provided by your ISP, is a set of four numbers configured like an IP address.
GLOSSARY 109 WEP Wired Equivalent Privacy. A shared key encryption mechanism for wireless networking. Encryption strength is 40/64 bit or 128 bit. WiFi Wireless Fidelity. This is the certification granted by WECA to products that meet their interoperability criteria. (see also 802.
GLOSSARY
INDEX A I Access Rights 66 Addresses IP 85 Administration Password 32, 43 Automatic Addressing 87 Internet addresses 85 Internet Addressing Mode 33 Internet Settings 55 dynamic IP address 55 PPPoE 55 PPTP 55 static IP address 55 IP Address 22, 36, 38, 45, 85 IP Allocation 56 ISP Connection 56 ISP Gateway Address 36 C Cable Specifications 90, 93 Channels 115 Clone MAC address 58 Configuration backup 70 restore 70 Conventions notice icons, About This Guide 8 text, About This Guide 8 Country Selection 30
INDEX P Password 29, 43 PC Privileges 65 PING 67 PPPoE 21, 28, 34, 55, 59 PPTP 21, 55, 60 Profile 53 R Remote Administration 68 Reset to Factory Defaults 71, 76 Restart 69 S Safety Information 19 Security 67 Setup Wizard 29, 44 Special Applications 63 Specifications technical 89 Static Addressing 87 Static IP Address 55, 57 Status 73 Subnet Mask 36, 38, 85 Summary 40 Support Information 73 Support Links 73 T TCP/IP 25, 27, 38, 85 Technical specifications 89 standards 89 Time Zone 32, 69 U Unit Con
REGULATORY NOTICES FOR THE CABLE/DSL GATEWAY FCC Statement This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules, and the Canadian Department of Communications Equipment Standards entitled, “Digital Apparatus,” ICES-003. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
CE Statement (Europe) This product complies with the European Low Voltage Directive 73/23/EEC, EMC Directive 89/336/EEC as amended by European Directive 93/68/EEC. CSA Statement This Class B digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations. Cet appareil numérique de la classe B respecte toutes les exigences du Règlement sur le matériel brouilleur du Canada.
REGULATORY NOTICES FOR THE WIRELESS CABLE/DSL GATEWAY Channels Use of the Wireless Cable/DSL Gateway 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.
Information to the User If this equipment does cause interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: ■ Reorient the receiving antenna. ■ Relocate the equipment with respect to the receiver. ■ Move the equipment away from the receiver.
Exposure to Radio Frequency Radiation: The radiated output power of the 3Com OfficeConnect Wireless Cable/DSL Gateway is far below the FCC radio frequency exposure limits. Nevertheless, the 3Com OfficeConnect Wireless Cable/DSL Gateway shall be used in such manner that the potential for human contact during normal operation is minimized. The distance between the antennas and the user should not be less than 20 cm.
RF Exposure Compliance Statement (U.S.) CAUTION: The 3Com OfficeConnect Wireless Cable/DSL Gateway has been certified as a mobile computing device as per FCC Section 2.1091. In order to comply with the FCC RF exposure requirements, the 3Com OfficeConnect Wireless Cable/DSL Gateway must only be installed with approved antennas and this transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.
3Com Corporation, Corporate Headquarters, Copyright © 2002 3Com Corporation. All rights reserved. 5400 Bayfront Plaza, Santa Clara, 3Com and OfficeConnect are registered trademarks of CA 95052-8145, USA. 3Com Corporation. All other company and product names may be trademarks of their respective companies. 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.
