OfficeConnect® Wireless 54Mbps/108Mbps 11g Cable/DSL Router User Guide 3CRWER100-75(M odel:WL-537) 3CRWER200-75(M odel:WL-537S) http://www.3com.
3Com Corporation 350 Campus Drive Marlborough, MA USA 01752-3064 Copyright © 2006, 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.
ABOUT THIS GUIDE This guide describes how to install and configure the OfficeConnect Wireless 54Mbps/108Mbps 11g cable/DSL Router(3CRWER100-75 and 3CRWER200-75). 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.
8 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 Wireless 54Mbps/108Mbps 11g cable/DSL Router User Guide ■ Part Number DUA0554-TAAA02 ■ 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 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.
10 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.
12 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 The advantages of the Router include: ■ Shared Internet connection for both wired and wireless computers ■ High speed 802.
14 CHAPTER 1: INTRODUCING THE ROUTER Minimum System and Component Requirements Your Router requires that the computer(s) and components in your network be configured with at least the following: ■ ■ ■ ■ ■ ■ Front Panel 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 ■ ■ ■ 15 The Router 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 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.
16 CHAPTER 1: INTRODUCING THE ROUTER 5 Cable/DSL Status LED Green (100 Mbps link) / yellow (10 Mbps 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 9 Ethernet Cable/DSL port Use the supplied patch cable to connect the Router to the Ethernet port on your cable or DSL modem. The port will automatically adjust to the correct speed and duplex, and will set itself to MDI or MDIX depending on the device to which they are connected and the type of cable used.
18 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.
20 CHAPTER 2: HARDWARE INSTALLATION When positioning your Router, ensure: ■ ■ ■ ■ Using the Rubber Feet Stacking the Router 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 21 When making connections, be careful not to push the unit up and off the wall. CAUTION: Only wall mount single units, do not wall mount stacked units. Before you Install your Router 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.
22 CHAPTER 2: HARDWARE INSTALLATION If your ISP allocates fixed or static IP information, you need the following information: IP Address : ____.____.____.____ Subnet Mask : ____.____.____.____ Default Router address : ____.____.____.____ DNS address : ____.____.____.____ 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.
Connecting the Router 23 Figure 5 Connecting the Router Power Supply Unit 11g Cable/DSL Router Your existing Cable/DSL Modem 12VDC 1.25A MAX 4 POWER OK 3 2 1 net Inter LAN Cable/DSL Wireless Users Your PC To use your Router to connect to the Internet through an external cable or DSL modem: 1 Insert one end of the supplied Ethernet (RJ-45 Category 5) cable into the Cable/DSL port on the rear panel of the Router. 2 Insert the other end of the cable into the RJ-45 port on your cable or DSL modem.
24 CHAPTER 2: HARDWARE INSTALLATION To communicate wirelessly with your Router, your wireless NIC should be set as follows: ■ Encryption — none ■ Service Area Name/SSID — 3Com ■ Channel — 11
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.
26 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 Windows XP 27 If you are using a Windows XP computer, use the following procedure to change your TCP/IP settings: 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.
28 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.
30 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) If your purchased your Router in the United States, you do not see this screen, as it is automatically set.
Accessing the Wizard 31 6 When you have selected a country either: ■ The Welcome screen will appear (Figure 12). Select the Wizard tab and click Wizard. or ■ 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.
32 CHAPTER 4: RUNNING THE SETUP WIZARD Figure 13 Wizard Screen 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.
Accessing the Wizard 33 2. Write the new password down and keep it in a safe place, so that you can change your settings in the future. Click Next to display the Time Zone setup screen (Figure 15). Time Zone Figure 15 Time Zone Screen Select your time zone from the pull-down menu, check the daylight savings option if required, and then click Next. 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.
34 CHAPTER 4: RUNNING THE SETUP WIZARD Internet connection mode, have the modem setting information from your ISP ready. Select an Internet Addressing mode from the following: ■ PPPoE is required (typically DSL users only) ■ ISP provides configuration dynamically (via DHCP) ■ ISP has provided a static IP address ■ PPTP is required (some DSL users in Europe) and click Next.
Accessing the Wizard 35 Do not enter anything in this box if your ISP does not require a service name. 4 Enter the MTU value supplied by your ISP in the MTU text box. If your ISP has not supplied an MTU value, leave this at the default value. The default is 1454. 5 Select an idle time from the Maximum Idle Time drop down list. This is the amount of time without Internet activity that you want to allow before the Router ends the PPPoE session. 6 Check all of your settings, and then click Next.
36 CHAPTER 4: RUNNING THE SETUP WIZARD 3 If your ISP requires an assigned MAC address, select Yes, I would like to enter a MAC address manually and enter the values for a MAC address if required (Figure 19). If the computer you are now using is the one that was previously connected directly to the cable modem, choose Yes, please clone the MAC address from the PC I’m currently using.
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.
38 CHAPTER 4: RUNNING THE SETUP WIZARD Figure 22 PPTP IP Settings 8 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.
Accessing the Wizard 39 Heart Beat Signal Mode(For Australia only) Figure 23 Heart Beat Signal Mode Screen To set up the Router for use with an L2TP connection, use the following procedure: 1 IT is a service used in Australia only. If you are using Heart Beat Signal connection, check with your ISP for the necessary setup information. 2 Enter the User Name and Password you use when logging nonto your ISP through a Heart Beat connection.
40 CHAPTER 4: RUNNING THE SETUP WIZARD LAN Settings Figure 24 LAN IP Address Screen This screen displays a suggested LAN IP address and subnet mask of the Router. It also allows you to change the IP address and subnet mask. DHCP The Router contains a Dynamic Host Configuration (DHCP) server that can automatically configure the TCP/IP settings of every computer on your network.
Accessing the Wizard Wireless Settings 41 Figure 26 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. Selecting Clear Channel Select from the Channel drop-down list allows the Router to automatically select an available channel when first powered on. The Service Area Name default for 3Com products is “3Com”.
42 CHAPTER 4: RUNNING THE SETUP WIZARD channel you select as this may be useful if you experience problems with your clients. Summary Figure 27 Configuration Summary Screen When you complete the Setup Wizard, a configuration summary will display. 3Com recommends that you verify the configuration information of the Router and then print this page for your records.
Accessing the Wizard 43 Figure 28 Wizard Completed Screen If you have made changes to the LAN Settings or wireless configuration options, you may need to reconfigure the computer you are using in order to make contact with the Router again. Your Router is now configured and ready for use. See Chapter 5 for a detailed description of the Router configuration screens.
44 CHAPTER 4: RUNNING THE SETUP WIZARD
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.
46 CHAPTER 5: ROUTER CONFIGURATION ■ ■ ■ Option Tabs Advanced — allows you to monitor and configure the Router’s advanced features, including RIP, DDNS and Security. 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 29 for example).
Welcome Screen 47 The Notice Board is used to display configuration warning messages. For example, you would be warned if you had disabled wireless networking or wireless encryption. Password Figure 30 Password Screen Changing the Administration Password You can change the password to prevent unauthorized access to the Administration System.
48 CHAPTER 5: ROUTER CONFIGURATION Wizard Figure 31 Wizard Screen Click WIZARD... to launch the configuration wizard. Refer to Chapter 4 for information on how to run the wizard.
LAN Settings 49 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 section. The default IP address of the Router is 192.168.1.1. 2 If you want to use the Router as a DHCP Server, check the Enable check box. 3 Clicking Auto Range will automatically choose the largest available range of addresses for your network.
50 CHAPTER 5: ROUTER CONFIGURATION Wireless Settings The Wireless Settings menu provides options described in the following sections. To improve the security of your wireless network, 3 Com recommends that you: 1.Change the SSID from its default value 2.Enable Encryption 3.
LAN Settings Configuration 51 Figure 34 Configuration Screen Enable Wireless Networking Use this check box to enable or disable the wireless secion of your LAN. When disabled, no wireless PCs can gain access to either the internet or other PCs on your Wired or Wireless LAN through this Router. Channel Selection Select a number from the drip-down list to specify which Channel the Router will transmit and receive on.
52 CHAPTER 5: ROUTER CONFIGURATION Service Area Name/SSID This allows you to name your Wireless network. The Service Area Name/SSID field will accept any alphanumeric string and has a maximum length of 32 characters. Your Wireless computers must be configured with exactly the same name or you will not establish a connection. The Service Area Name may also be referred to as "ESSID" depending on your networking vendor. By default the Router uses the name "3Com".
LAN Settings Encryption 53 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. You can configure wireless security such as WEP or WPA encryption on this screen.
54 CHAPTER 5: ROUTER CONFIGURATION WEP To enable WEP, select WEP from the Security Mode. Encryption: Choose from 64 bits or 128 bits Passphrase:You can enter a passphrase and click on the Generate button and the router will automatically generate four WEP keys for you. WEP Key1-4:Manaually assign a passphrase for each key. If you selected 64 bits encryption, enter 10 HEX characters (0-F) for each key. If you selected 128 bits encrtpyion,enter 26 HEX characters (0-F) for each key.
LAN Settings WPA To enable WPA, select WPA-PSK or WPA2-PSK from the Security Mode. Encryption Methods: Select either TKIP or AES as the encryption method. Passphrase:Enter a passphrase between 8 to 63 characters long. Key Renewal:Enter the desired key renewal time in seconds. Click Save to save the setting.
56 CHAPTER 5: ROUTER CONFIGURATION WPA!with RADIUS If you are using a RADIUS server in your network for authentication, you may choose WPA or!WPA2 from the Security Mode. Encryption Methods: Select either TKIP or AES as the encryption method. RADIUS Server:Enter the IP Address of your RADIUS server. RADIUS Port:;Enter the port number of your RADIUS server. Shared Key:Enter the shared key. Key Renewal:Enter the desired key renewal time in seconds. Click Save to save the setting.
LAN Settings 57 Connection Control You can restrict certain wireless clients from accessing the router by specifying their MAC address and enabling access restrictn. Select Enabled from the drop-down menu and choose whether the specified wireless clients will be prevented or permitted to access the wireless network. Enter their MAC address in the fields below and click Save to save the setting.
58 CHAPTER 5: ROUTER CONFIGURATION Client List 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.
LAN Settings Advanced Wireless Settings 59 Advanced Wireless Settings Screen You can configure various advanced wireless settings on this screen. Click Save to save the setting. Internet Settings 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 ISP scan allocate IP information, as described below: Static IP Address (DSL or Cable) 1 The ISP provides the IP addressing information for you to enter manually.
60 CHAPTER 5: ROUTER CONFIGURATION Router you will need to know the following: ■ ■ ■ User name Password Service Name(ifrequired by your ISP) When you install the Router, you will not need to use the PPPoE software on your PC.
LAN Settings 61 PPTP (DSL or Cable) 4 PPTP is only used by some European providers. If the installation instructions that accompany your modern ask you to setup a dialup connection using a PPTP VPN tunnel then select this option. To configure the Router you will need to know the following: ■ ■ ■ User name Password VPN Server address(usually your moderm) When you install the Router, you will not need to use the dialup VPN on your PC anymore.
62 CHAPTER 5: ROUTER CONFIGURATION Static IP Address 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. 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.
LAN Settings 63 Dynamic IP Address Figure 35 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.
64 CHAPTER 5: ROUTER CONFIGURATION ■ ■ 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 Router. 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. 4 Check all settings and click Save.
LAN Settings 65 3 Enter your PPP over Ethernet user name in the PPPoE User Name text box. 4 Enter a password in the PPPoE Password text box. 5 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. 6 Enter the MTU value supplied by your ISP. If you do not know this, leave it at the default value. The default is 1454. 7 Select an idle time from the Maximum Idle Time drop-down list.
66 CHAPTER 5: ROUTER CONFIGURATION To setup the Router for use with a PPTP connection, use the following procedure: 1 Select PPTP (used by some European providers) in the IP Allocation Mode field. 2 Enter your PPTP server address in the PPTP Server Address text box (this is typically the address of your modem). 3 Enter your PPTP user name in the PPTP User Name text box. 4 Enter your password in the PPTP Password text box. 5 Enter the MTU value supplied by your ISP.
LAN Settings 67 Heart Beat Signal Check with your ISP to make sure they support Heart Beat Signal. To set up the Router for use with a Heart Beat Signal connection, use the following procedure: 1 Select Heart Beat Signal (For Australia only) in the IP Allocation Mode field. 2 Enter the Host Name(optional). Some ISPs require a host name. If your ISP has this requirement, enter the host name in the Host Name text box. 3 Enter your Heart Beat Signal user name in the Heart Beat Signal User Name text box.
68 CHAPTER 5: ROUTER CONFIGURATION Firewall Virtual Servers On the main frame of the Firewall setup screen is a menu with six tabs: Virtual Servers, Special Applications, PCs Privileges, URL Filter, Content Filter and SPI. Selecting the Firewall option on the main menu displays the Virtual Servers setup screen. Virtual Servers Screen Virtual DMZ DMZ (De-Militarized Zone) Host is a computer without the protection of the firewall.
Firewall 69 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.
70 CHAPTER 5: ROUTER CONFIGURATION Special Applications Special Applications Screen Select Special Apps tab to display Authorized Application setup screen. Some software applications require special or multiple connections to the Internet and these would normally be blocked by the firewall. For example Internet Telephony or Video conferences require multiple connections. So that these special applications can work properly and are not blocked, the firewall needs to be told about them.
Firewall 71 Only one computer on your network can use the special application at any one time. SPI Select Firewall from the main menu, then select the SPI to display the SPI screen.!SPI Screen Check the Enable SPI and Anti-Dos Firewall protection check box to enable SPI.!When this feature is enabled, all incoming packets will be blocked except for those types that you allow in the Stateful Packet Inspection section. Web Filters:You can select to filter Proxy, Java, ActiveX, and/or Cookies.
72 CHAPTER 5: ROUTER CONFIGURATION QOS QoS(Quality of Service) manages information as it is transmitted and received. It ensures better service to those application with a higher priority. Click Save to save the setting. Internet Access Policy You can setup policies that deny or allow specific clients to access the Internet. Enter Policy Name;!Enter a name for the ploicy.
Firewall 73 Status:Choose to enable or disable the selected policy. PCs:Click on the Edit List button to specify the network clients. Policy only applies to the PCs that are in the list. You can specify each client by its MAC Addressor IP Address. You can also specify a group of clients by entering their IP Address Range. Once you have specified all the clients, click Save. Access Restrictions: Select to Deny or Allow the specified clients to access the Internet by Day and Time.
74 CHAPTER 5: ROUTER CONFIGURATION Website Blocking You can block the specified clients from accessing certain websites by URL or Keyword. Enter the URL or the Keyword you wish to block. Click Save to save the setting. To view all the policies, click the Summary button.
Firewall Contnet!Filter 75 You can subscribe to the 3Com Content Filter Service, which enables you to block or allow the URL of a number of pre-defined categories. The Router comes with a 14-day free trial of the 3Com Content Filter Service. 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 after the trial period, you must purchase the Full 3Com Content Filter Service(3CS8CFS).
76 CHAPTER 5: ROUTER CONFIGURATION To activate Content Filtering: 1 Select Firewall form the main menu, then select the Content Filter tab. The Content Filter screen displays. Figure63!Content Filter Screen 2 Make sure the Enable Content Filter check box is checked. 3 Select the Content Filter Server that you require from the drop-down list. If you select custom entry, enter the server IP address in the text box. 4 Select the Server Timeout value in milliseconds.
Firewall 77 System Tools The main frame of the System Tools screen includes four administration items: Restart, Time Zone, Configuration, and Upgrade. Restart Restart Screen If your Router is not operating correctly, you can choose to restart the Router by selecting Restart the Router, simulating the effect of power cycling the unit. No configuration information will be lost but the log files will be erased.
78 CHAPTER 5: ROUTER CONFIGURATION Time Zone Time Zone Screen 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 Day Light savings box, and then click Save. The Router 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.
Firewall Configuration 79 Configuration Screen Select the Configuration tab to display the Configuration screen . Backup Configuration Click BACKUP to save the current Router configuration. You will be prompted to download and save a file to disk. Restore Configuration Data If you want to reinstate the configuration settings previously saved to a file, press Browse to locate the backup file on your computer, and then click RESTORE to copy the data into the Router's memory.
80 CHAPTER 5: ROUTER CONFIGURATION Upgrade Upgrade Screen The Upgrade facility allows you to install on the Router any new releases of system software that 3Com may make available. To install new software, you first need to download the software from the 3Com support web site to a folder on your computer. Once you have done this, select Browse to tell your web browser where this file is on your computer, and then click Apply.
Advanced 81 The upgrade procedure can take up to two minutes, and is complete when the Alert LED has stopped flashing and is permanently off. Make sure that you do not interrupt power to the Router during the upgrade procedure; if you do, the software may be corrupted and the Router may not start up properly afterwards. . Advanced Static Route Selecting Advanced from the main menu displays the following five tabs in your Web browser window: Static Route, RIP, Security!and!Syslog.
82 CHAPTER 5: ROUTER CONFIGURATION RIP The Router supports the Routing Information Protocol (RIP). RIP allows you to set up routing information on one RIP enabled device, and have that routing information replicated to all RIP enabled devices on the network. LAN and WAN interfaces can be configured independently of each other. Select the RIP tab to display the screen/ RIP screen Check the Enable RIP Mode check box to configure RIP on the Router.
Advanced DDNS 83 Dynamic Domain Name Server (DDNS) enables you to map a static domain name to a dynamic IP address. The Router supports two DDNS providers, TZO.com and DYNDNS.org. Before you can set up DDNS, you must obtain an account, password and static domain name from your DDNS provider. DDNS is disabled by default. To set up DDNS: 1 Select Advanced from the main menu, then select the DDNS tab. The DDNS screen displays.
84 CHAPTER 5: ROUTER CONFIGURATION 2 Select a DDNS Service provider from the drop-down list. This can be either TZO.com or DynDNS.org. TZO.com If you select TZO.com: 1 In the Domain Name text box, enter the domain name. 2 In the E-mail text box, enter the account name. 3 In the Key text box, enter the account password. 4 Click Save to make this service active. DynDNS.org If you select DYNDNS.org: 1 In the Host Name text box, enter the host name. 2 In the Username text box, enter the account name.
Advanced Security 85 Select Security to display the Security screen. Security Screen The Internet connects millions of computer users throughout the world. The vast majority of the computer users on the Internet are friendly and have no intention of breaking into, stealing from, or damaging your network. However, there are hackers who may try to break into your network. The options in the Security tab features help you to protect your network.
86 CHAPTER 5: ROUTER CONFIGURATION 3Com recommends that you leave this feature disabled for maximum security. ■ Allow PING from the Internet - PING is a utility, which is used to determine whether a device is active at the specified IP address. PING is normally used to test the physical connection between two devices, to ensure that everything is working correctly. By default the Router has PING disabled in order to make the device more difficult to find on the Internet and less prone to attack.
Advanced 87 To remotely administer your Router, enter http://xxx.xxx.xxx.xxx:8000 in the location bar of the browser running on the remote computer, where xxx.xxx.xxx.xxx is the Internet IP address of the Router. You may then login using the administration password. Your Internet IP address can be found at the bottom of the screen. . Syslog Select Syslog to display the syslog screen. Check on the check box to enable this feature, and then click Save.
88 CHAPTER 5: ROUTER CONFIGURATION Status and Logs Status Selecting Status and Logs from the main menu displays the Status,! Logs-and Routing Table in yur Web browser window. The Status screen displays a tabular representation of your network and Internet connection.
Status and Logs Logs 89 Logs will allow you to view both the normal events, and security threats logged by the Router. Logs Screen Select Incoming Log or Outgoing Log from the Type drop-down menu. The Incoming Log will display a temporary log of the Source IP Addresses and Destination Port Numbers fo rthe incoming Internet trafic. Click the Save Log button to save this information to!a file on your PC's hard drive. Click the Refresh button to update the log.
90 CHAPTER 5: ROUTER CONFIGURATION Routing Table Select the Routing table tab to display routing information used by the Router. The information is displayed in the form at shown as below. Support/Feedback Selecting Support/Feedback from the main menu displays the Support and Feedback screens.
Status and Logs Feedback 91 Feedback Screen Selecting the Feedback option displays the Feedback screen and allows you to provide feedback to 3Com on the operation of your Router . This screen should not be used to obtain technical support.
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6 Basic Connection Checks TROUBLESHOOTING ■ ■ ■ Browsing to the Router Configuration Screens Check that the Router is connected to your computers and to the cable/DSL modem, and that all the equipment is powered on. Check that the LAN Status and Cable/DSL Status LEDs on the Router are illuminated, and that any corresponding LEDs on the cable/DSL modem and the NIC are also illuminated. Ensure that the computers have completed their start-up procedure and are ready for use.
104 CHAPTER 6: TROUBLESHOOTING Connections tab and click on the LAN Settings button at the bottom. Make sure that the Proxy Server option is unchecked. ■ ■ Connecting to the Internet If you cannot browse to the Router, use the winipcfg utility in Windows 95/98/ME to verify that your computer has received the correct address information from the Router. From the Start menu, choose Run and then enter winipcfg. Check that the computer has an IP address of the form 192.168.1.
Forgotten Password and Reset to Factory Defaults Forgotten Password and Reset to Factory Defaults 105 If you can browse to the Router configuration screen but cannot log on because you do not know or have forgotten the password, follow the steps below to reset the Router to it’s factory default configuration. CAUTION: All your configuration changes will be lost, and you will need to run the configuration wizard again before you can re-establish your Router connection to the Internet.
106 CHAPTER 6: TROUBLESHOOTING ■ ■ ■ ■ ■ ■ ■ ■ ■ If you have a wired and a wireless NIC in the same computer, ensure that the wired NIC is disabled. Check the status of the Router Wireless LED, it should be lit if wireless is enabled and will flash when there is wireless activity. If not lit go to “Wireless Settings” and enable wireless networking. Ensure that the TCP/IP settings for all devices are correct.
Power LED or Power Adapter OK LED Not Lit ■ Power LED or Power Adapter OK LED Not Lit ■ Speed of connection: The 802.11b and 802.11g standards will automatically choose the best speed depending on the quality of your connection. As the signal quality weakens then the speed falls back to a lower speed. The speeds supported by 802.11g are 54 Mbps, 48 Mbps, 36 Mbps, 24 Mbps, 18 Mbps, 12 Mbps, and 6 Mbps. The speeds supported by 802.11b are 11 Mbps, 5.5 Mbps, 2 Mbps and 1 Mbps.
108 CHAPTER 6: TROUBLESHOOTING Alternatively, quote the part number for your region: Power Adapter Part Numbers Alert LED Part Number Region 3C16760 US and Canada 3C16761 UK 3C16762 Europe and Middle East 3C16763 Australasia (except Japan and Korea) 3C16764 South Africa 3C16766 Japan 3C16767 Korea 3C16768 Argentina The Alert LED will flash when the Router unit is first powered up while the system software checks the hardware for proper operation.
Frequently Asked Questions 109 Router will enter a “recovery” state; DHCP is disabled, and the LAN IP address is set to 192.168.1.1. Follow the instructions below to upload a new copy of the system software to a Router unit in this state. Ensure that one of your computers has a copy of the new software image file stored on its hard disk or available on CD-ROM. The latest software is available on 3Com’s Web site at: www.3com.com.
110 CHAPTER 6: TROUBLESHOOTING How many computers on the LAN does the Router support? A maximum of 253 computers on the LAN are supported. How many wireless clients does the Cable/DSL Router support? A maximum of 128 wireless clients are supported. There are only 4 LAN ports on the Router. 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 Router.
A Running the Discovery Application USING DISCOVERY 3Com provides a user friendly Discovery application for detecting the Router on the network. Windows Installation (95/98/2000/Me/NT) 1 Insert the Router CD-ROM in the CD-ROM drive on your computer. A menu will appear; select Router Discovery. Discovery will find the Router even if it is unconfigured or misconfigured.
112 APPENDIX A: USING DISCOVERY Discovered Router Screen 3 Highlight the Cable/DSL Router by clicking on it, and press Next. Discovered Finish!Screen 4 Click on Finish to launch a web browser and display the login page for the Router.
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.
114 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 Router, 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? 115 This type of IP Address operates on a subnet mask of ‘255.255.0.0’. See an example about how a network (only four computers represented) and a Router might be configured. 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 4 192.168.002.230 255.255.0.
116 APPENDIX B: IP ADDRESSING Automatic IP addressing is a scheme where devices allocate themselves 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 Wireless 11g Cable/DSL Router. Wireless 11g Cable/DSL Router Interfaces Cable/DSL modem connection — 10Mbps/100Mbps dual speed Ethernet port (10BASE-T/100BASE-TX) LAN connection — four 10Mbps/100Mbps dual speed Ethernet ports (10BASE-T/100BASE-TX) WLAN Interfaces Standard IEEE 802.
118 APPENDIX C: TECHNICAL SPECIFICATIONS Sensitivity: 1, 2, 5.5 Mbps: -85 dBm; 11 Mbps -82 dBm typical Modulation: CCK, BPSK, QPSK, OFDM Encryption: 40/64 bit WEP, 128 bit WEP, WPA Maximum clients: 128 O/P Power: 19dBm 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.) ■ Height = 24 mm (1 in.) Weight Approximately 500 g (1.
119 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. RSS-210 Environmental: EN 60068 (IEC 68) *See “Regulatory Information(Page 139)” on for conditions of operation. System Requirements Operating Systems The Router will support the following Operating Systems: ■ Windows 95/98 ■ Windows NT 4.0 ■ Windows ME ■ Windows 2000 ■ Windows XP ■ Mac OS 8.5 or higher ■ Unix Ethernet Performance The Router complies to the IEEE 802.
120 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 Router 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.
122 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.
123 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. 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.
124 APPENDIX D: SAFETY INFORMATION AVERTISSEMENT: L’appareil fonctionne à une tension extrêmement basse de sécurité qui est conforme à la norme CEI 60950. 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 LICENSE AGREEMENT IMPORTANT: READ BEFORE INSTALLING THE SOFTWARE 3Com 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 (ì3COMî) 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.
126 APPENDIX E: END USER SOFTWARE LICENSE AGREEMENT 3Com and its suppliers. You agree to hold such trade secrets in confidence. You further acknowledge and agree that ownership of, and title to, the Software and Documentation and all subsequent copies thereof regardless of the form or media are held by 3Com and its suppliers. UNITED STATES GOVERNMENT LEGENDS: The Software, Documentation and any other technical data provided hereunder is commercial in nature and developed solely at private expense.
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.
128 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 The IEEE specification for wireless Ethernet which allows speeds of up to 11 Mbps. The standard provides for 1, 2, 5.5 and 11 Mbps data rates. The rates will switch automatically depending on range and environment. 802.11g The IEEE specification for wireless Ethernet which allows speeds of up to 54 Mbps. The standard provides for 6, 12, 24, 36, 48 and 54 Mbps data rates. The rates will switch automatically depending on range and environment.
130 GLOSSARY configure to use the best common speed. The order of preference (best first) is: 100BASE-TX full duplex, 100BASE-TX half duplex, 10BASE-T full duplex, and 10BASE-T half duplex. Auto-negotiation is defined in the IEEE 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.
GLOSSARY 131 95 and Windows 98 will call the server to obtain the address. Windows 98 will allocate itself an address if no DHCP server can be found. DNS Server Address DSL modem DNS stands for Domain Name System, which allows Internet host computers to have a domain name (such as 3com.com) and one or more IP addresses (such as 192.34.45.8). A DNS server keeps a database of host computers and their respective domain names and IP addresses, so that when a domain name is requested (as in typing “3com.
132 GLOSSARY Router A device that acts as a central hub by connecting to each computer's network interface card and managing the data traffic between the local network and the Internet. Half Duplex A system that allows packets to transmitted and received, but not at the same time. Contrast with full duplex. Hub A device that regenerates LAN traffic so that the transmission distance of that signal can be extended.
GLOSSARY 133 ISP Internet Service Provider. An ISP is a business that provides connectivity to the Internet for individuals and other businesses or organizations. LAN Local Area Network. A network of end stations (such as PCs, printers, servers) and network devices (hubs and switches) that cover a relatively small geographic area (usually not larger than a floor or building). LANs are characterized by high transmission speeds over short distances (up to 1000 metres). MAC Media Access Control.
134 GLOSSARY PPTP RIP RJ-45 Point-to-Point Tunneling Protocol is a method of secure data transmission between two remote sites over the internet. Routing Information Protocol. RIP allows an administrator to set up routing information on one RIP enabled device, and have that routing information replicated to all RIP enabled devices on the network. A standard connector used to connect Ethernet networks. The “RJ” stands for “registered jack”.
GLOSSARY TCP/IP 135 Transmission Control Protocol/Internet Protocol. This is the name for two of the most well-known protocols developed 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 to the content of the data travelling through a network — ensuring that the information sent arrives in one piece when it reaches its destination.
136 GLOSSARY Wi-Fi Wireless Client Wireless LAN Service Area Wizard WLAN WPA Wireless Fidelity. This is the certification granted by WECA to products that meet their interoperability criteria. (see also 802.11b, WECA) The term used to describe a desktop or mobile PC that is wirelessly connected to your wireless network Another term for ESSID (Extended Service Set Identifier) A Windows application that automates a procedure such as installation or configuration. Wireless Local Area Network.
139 REGULATORY INFORMATION 3Com OfficeConnect Wireless 54Mbps/108Mbps 11g Cable/DSL Router (WL-537, WL-537S) must be installed and used in strict accordance with the manufacturer’s instructions as described in the user documentation that comes with the product. This product contains encryption. It is unlawful to export out of the U.S. without obtaining a U.S. Export License. This product does not contain any user serviceable components.
140 USA-FEDERAL COMMUNICATIONS COMMISSION (FCC) This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of FCC Rules.
141 MANUFACTURER’S DECLARATION OF CONFORMITY 3Com Corporation 350 Campus Drive Marlborough, MA 01752-3064, USA (800) 527-8677 Date: 03,20 2006 Declares that the Product: Brand Name: 3Com Corporation Model Number: WL-537, WL-537S Equipment Type: 3Com OfficeConnect Wireless 54Mbps/108Mbps 11g Cable/DSL Router Complies with Part 15 of the FCC rules.
142 CANADA – INDUSTRY CANADA (IC) This device complies with RSS 210 of Industry Canada. Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of this device.” IMPORTANT NOTE IC Radiation Exposure Statement: This equipment complies with IC radiation exposure limits set forth for an uncontrolled environment.
143 EUROPE – EU DECLARATION OF CONFORMITY This equipment may be operated in AT BE CY CZ DK EE FI DE GR HU IE IT LV LT FR LU MT NL PL PT SK SI ES SE GB IS LI NO CH BG RO TR Intended use: IEEE 802.11g/b radio LAN device NOTE: To ensure product operation is in compliance with local regulations, select the country in which the product is installed. Refer to 3Com OfficeConnect Wireless 54Mbps/108Mbps 11g Cable/DSL Router User Guide.
144 Greek Italian Spanish Portuguese Malti Estonian Hungarian Slovak Czech Slovene Lithuanian Latvian 3Com Corporation RLAN device 1999/5/ Con la presente 3Com Corporation dichiara che questo RLAN device è conforme ai requisiti essenziali ed alle altre disposizioni pertinenti stabilite dalla direttiva 1999/5/CE.