Advanced 89 Before you set up DDNS, you must obtain an account, password or key and static domain name from your DDNS provider. DDNS is disabled by default. Figure 74 Dynamic Domain Server (DDNS) Screen 1 Check Enable DDNS. 2 Select the provider, and then enter the necessary information provided by your DDNS provider. 3 Click Apply.
90 CHAPTER 5: CONFIGURING THE ROUTER SNMP SNMP (Simple Network Management Protocol) allows remote management of your router by a PC that has an SNMP management agent installed. Figure 75 SNMP Screen To Configure SNMP Community: 1 In the Community column, enter the name of the SNMP communication channel. Your SNMP management agent needs to be configured with this name so that it can communicate with your router.
Advanced 91 You can configure your router to send status messages to the SNMP management agent if a problem occurs on the network. To configure SNMP traps: 1 In the IP Address field, enter the IP address of the PC to which you want your router to send status messages. 2 In the Community field, enter the name of the SNMP communication channel to which you want your router to send status messages. 3 Set the Version field to match the version of trap messaging that your SNMP management agent supports.
92 CHAPTER 5: CONFIGURING THE ROUTER Proxy ARP Proxy ARP is the technique in which one host, usually a router, answers ARP requests intended for another machine. By "faking" its identity, the router accepts responsibility for routing packets to the "real" or intended destination. This hightens the security for your network. Figure 77 Proxy ARP Screen Enter the corresponding IP address in the IP Address From and IP Address To fields.
System Tools System Tools Restart Router These pages allows you to manage different parameters of the Router and perform certain administrative functions. Sometimes it may be necessary to restart (or reboot) the Router. Restarting the Router from this screen will not delete any of your configuration settings. Click the Restart the Router button to restart the Router.
94 CHAPTER 5: CONFIGURING THE ROUTER Upgrade ■ Backup Configuration — You can save your current configuration by clicking the Backup button. Saving your configuration will allow you to restore it later if your settings are lost or changed. It is recommended that you backup your current configuration before performing a firmware update. ■ Restore Configuration Data — The Restore Settings option will allow you to restore a previously saved configuration.
System Tools Time Zone 95 You can set the time settings for the Router in this page. Figure 81 Time Zone Screen The Router keeps time by connecting to a Network Time Protocol (NTP) server. This allows the Router to synchronize the system clock to the Internet. The synchronized clock in the Router is used to record the security log and control client filtering. Select the time zone that you reside in.
96 CHAPTER 5: CONFIGURING THE ROUTER Ping The ping tool is used to test if the network is working properly. Figure 82 Ping Screen 1 Enter the IP address or domain name in the IP Address or Domain Name field, and click Ping. 2 Select from the Number of times to Ping drop-down menu. 3 The Router keeps a log of the ping test, click Clear Log to delete the records.
System Tools Traceroute 97 Traceroute is the program that shows you the route over the network between two systems, listing all the intermediate routers a connection must pass through to get to its destination. It can help you determine why your connections to a given server might be poor, and can often help you figure out where exactly the problem is.
98 CHAPTER 5: CONFIGURING THE ROUTER DNS Lookup DNS Lookup is the process of resolving an IP address (i.e. 192.168.11.137) to a host name (i.e. xxxcompany.net). Figure 84 DNS Lookup Screen 1 Enter the IP address or domain name in the IP Address or Domain Name field, and click Dns lookup. 2 The Router keeps a log of the DNS lookup test, click Clear Log to delete the records.
Status and Logs Status and Logs Status You can use the Status Screen to view version numbers for your Router’s software and hardware and check the status of connections to WAN, LAN and WLAN interfaces. Figure 85 Status Screen This screen shows Router status and statistics. ADSL Status 99 Figure 86 ADSL Status Screen This screen shows ADSL modem status and statistics.
100 CHAPTER 5: CONFIGURING THE ROUTER ATM PVC Status Figure 87 ATM PVC Status Screen This screen shows ATM PVC status and statistics. Routing Table ■ Click Release to release the IP address from your ISP. ■ Click Renew to obtain the IP address from your ISP. This screen displays details for the default routing used by your Router and any routing created using Static Routing or RIP.
Status and Logs Logs 101 This screen shows any attempts that have been made to gain access to your network as well as the system activities. Figure 89 Logs Screen ■ Click Refresh to update the record. ■ Click Clear to clear the log (note that all current entries will be erased). ■ Click Save to save the log to the hard disk as a text file. When prompted for a location to save the file to, specify a filename and location, and then click OK.
102 CHAPTER 5: CONFIGURING THE ROUTER Support/Feedback Support You can use the Support/Feedback screen to obtain support and help, and also provide feedback to 3Com. Figure 90 Support Screen This screen shows support information. Feedback To provide feedback to 3Com, please click Provide Feedback, and this will connect you to 3Com Web site. Figure 91 Feedback Screen This screen shows feedback information.
6 Basic Connection Checks Browsing to the Router Configuration Screens TROUBLESHOOTING ■ Check that the Router is connected to your computers and to the telephone line, and that all the equipment is powered on. Check that the LAN Status and SYNC LEDs on the Router are illuminated, and that any corresponding LEDs on the NIC are also illuminated. ■ Ensure that the computers have completed their start-up procedure and are ready for use.
104 CHAPTER 6: TROUBLESHOOTING ■ Connecting to the Internet Forgotten Password and Reset to Factory Defaults If you cannot browse to the Router, use the winipcfg utility in Windows 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.xxx (where xxx is in the range 2-254), the subnet mask is 255.255.255.0, and the default Router is 192.168.
Wireless Networking 105 4 Press and hold the Reset button on the rear panel (see “The rear panel (Figure 4) of the Router contains four LAN ports, one ADSL port, a reset button, a power switch, and a power adapter socket.” on page 15) for 5 seconds. 5 The Router will restart, and when the start-up sequence has completed, browse to: http://192.168.1.1 and run the configuration wizard. You may need to restart your computer before you attempt this.
106 CHAPTER 6: TROUBLESHOOTING effective coverage you can try reorientating your antennae. Place one antenna vertically and one horizontally to improve coverage. Additionally consider moving the wireless computer closer to the Router to confirm that the building structure or fittings are not adversely affecting the connectivity. If this resolves the problem consider relocating the Wireless computer or the Router, or trying a different channel on the Router. ■ Sources of interference: The 2.
Recovering from Corrupted Software Recovering from Corrupted Software 107 If the system software has become corrupted, the Router will enter a “recovery” state; DHCP is enabled, and the LAN IP address is set to 192.168.1.1. Follow the instructions below to upload a new copy of the system software to a Router unit in this state. 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.
108 CHAPTER 6: TROUBLESHOOTING Frequently Asked Questions How do I reset the Router to Factory Defaults? See “Forgotten Password and Reset to Factory Defaults” on page 104. 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 Router support? A maximum of 128 wireless clients are supported. There are only 4 LAN ports on the Router.
A 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.
110 APPENDIX A: 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? 111 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 Router 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.
112 APPENDIX A: 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.
B TECHNICAL SPECIFICATIONS This section lists the technical specifications for the OfficeConnect ADSL Wireless 11g Firewall Router. OfficeConnect ADSL Wireless 11g Firewall Router Interfaces DSL connection LAN connection — four 10Mbps/100Mbps dual speed Ethernet ports (10BASE-T/100BASE-TX) WLAN Interfaces Standard IEEE 802.11g, Direct Sequence Spread Spectrum (DSSS) Transmission rate: 54Mbps, automatic fallback to 48, 36, 24, 18, 12, or 6 Mbps Maximum channels: 13 Range up to 304.
114 APPENDIX B: TECHNICAL SPECIFICATIONS Encryption: 40/64 bit WEP, 128 bit WEP, WPA Maximum clients: 128 O/P Power: 18dBm Standard IEEE 802.11b, Direct Sequence Spread Spectrum (DSSS) Transmission rate: 11bps, automatic fallback to 5.5, 2, or 1 Mbps Maximum channels: 13 Range up to 304.
OfficeConnect ADSL Wireless 11g Firewall Router 115 Weight Approximately 550 g (1.1 lbs) Standards Functional: ISO 8802/3 IEEE 802.3 IEEE 802.11b, 802.11g Safety: EN 60950 EMC: EN 55022 Class B EN 55024 FCC Part 15 Class B* ETSI EN 301 489–17 Radio ETS 300 328 (2.4 GHz ISM band wide band transmission systems. Environmental: EN 60068 (IEC 68) *See “Regulatory Notices” for conditions of operation.
116 APPENDIX B: TECHNICAL SPECIFICATIONS Cable Specifications The Router supports the following cable types and maximum lengths: ■ Category 3 (Ethernet) or Category 5 (Fast Ethernet or Dual Speed Ethernet) Twisted Pair — shielded and unshielded cable types. ■ Maximum cable length of 100m (327.86 ft).
C 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.
118 APPENDIX C: SAFETY INFORMATION WARNING: RJ-45 ports. These are shielded RJ-45 data sockets. They cannot be used as telephone sockets. Only connect RJ-45 data connectors to these sockets. Wichtige Sicherheitshinweise VORSICHT: Warnhinweise enthalten Anweisungen, die Sie zu Ihrer eigenen Sicherheit befolgen müssen. Alle Anweisungen sind sorgfältig zu befolgen.
119 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.
120 APPENDIX C: SAFETY INFORMATION conditions ne sont maintenues que si l'équipement auquel il est raccordé fonctionne dans les mêmes conditions. AVERTISSEMENT: Il n’y a pas de parties remplaceables par les utilisateurs ou entretenues par les utilisateurs à l’intérieur du moyeu. Si vous avez un problème physique avec le moyeu qui ne peut pas être résolu avec les actions de la résolution des problèmes dans ce guide, contacter votre fournisseur.
D END USER SOFTWARE LICENSE 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.
122 APPENDIX D: END USER SOFTWARE LICENSE 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.
D Register Your Product OBTAINING SUPPORT FOR YOUR PRODUCT Warranty and other service benefits start from the date of purchase, so it is important to register your product quickly to ensure you get full use of the warranty and other service benefits available to you. Warranty and other service benefits are enabled through product registration. Register your product at http://eSupport.3com.com/. 3Com eSupport services are based on accounts that you create or have authorization to access.
124 APPENDIX D: OBTAINING SUPPORT FOR YOUR PRODUCT Troubleshoot Online You will find support tools posted on the 3Com Web site at www.3com.com. 3Com Knowledgebase helps you troubleshoot 3Com products. This query-based interactive tool is located at http://knowledgebase.3com.com and contains thousands of technical solutions written by 3Com support engineers. Access Software Downloads Software Updates are the bug fix/maintenance releases for the version of software initially purchased with the product.
Contact Us 125 To send a product directly to 3Com for repair, you must first obtain a return authorization number (RMA). Products sent to 3Com, without authorization numbers clearly marked on the outside of the package, will be returned to the sender unopened, at the sender’s expense. If your product is registered and under warranty, you can obtain an RMA number online at http://eSupport.3com.com/. First time users will need to apply for a user name and password.
126 APPENDIX D: OBTAINING SUPPORT FOR YOUR PRODUCT Country Telephone Number Country Telephone Number Austria Belgium Denmark Finland France Germany Hungary Ireland Israel Italy 0800 297 468 0800 71429 800 17309 0800 113153 0800 917959 0800 182 1502 06800 12813 1 800 553 117 1800 945 3794 800 879489 Luxembourg Netherlands Norway Poland Portugal South Africa Spain Sweden Switzerland U.K.
Contact Us Country Telephone Number Country US and Canada Telephone Technical Support and Repair 1 800 876 3266 127 Telephone Number
128 APPENDIX D: OBTAINING SUPPORT FOR YOUR PRODUCT
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 Auto-negotiation Some devices in the range support auto-negotiation. Auto-negotiation is where two devices sharing a link, automatically 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.
GLOSSARY DNS Server Address DSL modem 131 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.com” into your Internet browser), the user is sent to the proper IP address.
132 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 LAN 133 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. 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.
134 GLOSSARY RJ-45 A standard connector used to connect Ethernet networks. The “RJ” stands for “registered jack”. 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. Server A computer in a network that is shared by multiple end stations. Servers provide end stations with access to shared network services such as computer files and printer queues. SSID Service Set Identifier.
GLOSSARY Traffic 135 The movement of data packets on a network. universal plug and play Universal plug and play is a system which allows compatible applications to read some of their settings from the Router. This allows them to automatically configure some, or all, of their settings and need less user configuration. URL Filter A URL Filter is a feature of a firewall that allows it to stop its clients form browsing inappropriate Web sites. WAN Wide Area Network.
136 GLOSSARY WLAN WPA Wireless Local Area Network. A WLAN is a group of computers and devices connected together by wireless in a relatively small area (such as a house or office). Wi-Fi Protected Access. A dynamically changing encryption mechanism for wireless networking. Encryption strength is 256 bit.
137 REGULATORY NOTICES FOR THE OFFICECONNECT ADSL WIRELESS 11G FIREWALL ROUTER GENERAL STATEMENTS The 3Com OfficeConnect ADSL 11g Firewall Router, Model Number: WL-552 (3CRWDR100A-72, 3CRWDR100A-72, 3CRWDR100A-72) 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.
138 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. 3Com OfficeConnect ADSL 11g Firewall Router Model WL-552 INDUSTRY CANADA - RF COMPLIANCE This device complies with RSS 210 of Industry Canada.
139 Intended use: ADSL 802.11g/b Firewall Router For connection to ADSL networks NOTE: To ensure product operation is in compliance with local regulations, select the country in which the product is installed. Refer to 3CRWDR100A-72, 3CRWDR100A-72, 3CRWDR100A-72 User Guide. English Hereby, 3Com Corporation, declares that this RLAN device is in compliance with the essential requirements and other relevant provisions of Directive 1999/5/EC.
140 Also available at http://support.3com.com/doc/WL-552_EU_DOC.pdf EU - RESTRICTIONS FOR USE IN THE 2.4GHZ BAND BRAZIL RF COMPLIANCE This device may be operated indoors or outdoors in all countries of the European Community using the 2.4GHz band: Channels 1 - 13, except where noted below. ■ In Italy the end-user must apply for a license from the national spectrum authority to operate this device outdoors. ■ In Belgium outdoor operation is only permitted using the 2.46 - 2.4835 GHz band: Channel 13.
INDEX 128-bit WEP 46 128-bit WEP Screen 46 1483 Bridge Mode 55 64-bit WEP Screen 47 DNS Screen 55 DSL mode 29 Dynamic Domain Server (DDNS) Screen 70 Dynamic IP Address 34 Dynamic/Fixed IP for Bridge Mode Screen 35, 55 DYNDNS 70 A E Access Control Screen 62 Add PC Screen 63 Add Schedule Rule Screen 65 Addresses IP 85 Admin Password Screen 75 ADSL Status Screen 77 Advanced Screen 68 Automatic Addressing 87 Editing DHCP Clients List Screen 42 Encryption Screen 44 Encryption, disabling 45 Numbers B Back
142 INDEX configuring 56 MAC Address Filtering Screen 66 mode 30 N NAT (Network Address Translation) 68 NAT-T (NAT Traversal) 68 Network addresses 85 Networking wireless 81 NIC wireless 14 P Password 27, 75 Poison Reverse 58 PPPoA 31 PPPoA Screen 31 PPPoA Settings Screen 52 PPPoE 26, 30, 31 PPPoE Screen 30 PPPoE Settings Screen 51 R Remote Admin 68 Reset to Factory Default Screen 73 Reset to Factory Defaults 80 Restart Router Screen 73 RFC 1483 Bridged Mode 32, 53 RFC 1483 Routed Mode 34 RIP (Routing I