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Firewall

71

contained within other words. For example, filtering the word sex would 
filter the following example URLs:

■

www.sussex.com

■

www.thisexample.com

You can filter up to 30 keywords and URLs.

Computers that should not be subject to URL filtering can be excluded by 
ticking the Bypass URL Filter checkbox in the PC Privileges setup screen. 
See 

“PC Privileges”

 on 

page 67

.

Allow List

To stop users from accessing any Web sites that you have not specifically 
allowed, choose 

Allow List

 in the 

URL Filter Type

 drop-down box 

(

Figure 55

).

Figure 55   

URL Filter Screen showing Allow List

To allow a specific site, enter the URL for that site. For example, to let 
your users browse a site called 

www.goodsite.com

, enter 

www.goodsite.com

 or 

goodsite.com

 in one of the fields.

If goodsite.com has multiple sub-domains, such as 

this.goodsite.com

 and 

that.goodsite.com

 then you can 

either:

Summary of Contents for OfficeConnect 3CRWE554G72

Page 1: ...http www 3com com Part No DUA0055 4AAA01 Rev 01 Published July 2003 OfficeConnect Wireless 11g Cable DSL Gateway User Guide 3CRWE554G72 ...

Page 2: ...tation contained in or delivered to you in conjunction with this User Guide Unless otherwise indicated 3Com registered trademarks are registered in the United States and may or may not be registered in other countries 3Com OfficeConnect and the 3Com logo are registered trademarks of 3Com Corporation Intel and Pentium are registered trademarks of Intel Corporation Microsoft MS DOS Windows and Windo...

Page 3: ...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 21 Powering Up the Gateway 22 Connecting the Gateway 22 3 SETTING UP YOUR COMPUTERS Obtaining an IP Address Automatically 25 Windows 2000 25...

Page 4: ...NFIGURATION Navigating Through the Gateway Configuration Pages 41 Main Menu 41 Option Tabs 42 Welcome Screen 42 Notice Board 42 Password 43 Wizard 44 LAN Settings 44 Unit Configuration 44 DHCP Clients List 45 Wireless Settings 47 Configuration 47 Encryption 49 Configuring WPA Encryption 49 Configuring WEP Encryption 50 Connection Control 53 Client List 55 Profile 55 Internet Settings 57 Connection...

Page 5: ...ing to the Gateway Configuration Screens 83 Connecting to the Internet 84 Forgotten Password and Reset to Factory Defaults 85 Wireless Networking 85 Replacement Power Adapters 87 Alert LED 88 Recovering from Corrupted Software 89 Frequently Asked Questions 90 A USING DISCOVERY Running the Discovery Application 93 Windows Installation 95 98 2000 Me NT 93 B IP ADDRESSING The Internet Protocol Suite ...

Page 6: ... 97 DHCP Addressing 97 Static Addressing 97 Auto IP Addressing 97 C TECHNICAL SPECIFICATIONS Standards 100 D SAFETY INFORMATION E END USER SOFTWARE LICENSE AGREEMENT F ISP INFORMATION GLOSSARY INDEX REGULATORY NOTICES FOR THE WIRELESS 11G CABLE DSL GATEWAY ...

Page 7: ... shipped with the OfficeConnect Wireless 11g Cable DSL Gateway and contains information that differs from the information in this guide follow the information in the release note Most user guides and release notes are available in Adobe Acrobat Reader Portable Document Format PDF on the 3Com World Wide Web site http www 3com com Naming Convention Throughout this guide the OfficeConnect Wireless 11...

Page 8: ...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 Table 2 Text Conventions Convention Description The words enter and type When you see the word enter in this guide you must type something and then press Return or Enter Do not press Return or Enter when an instruction...

Page 9: ...nical Support please refer to the Support and Safety Information sheet Related Documentation In addition to this guide each Gateway document set includes one Installation Guide This guide contains the instructions you need to install and configure your Gateway Product Registration You can now register your Gateway on the 3Com web site and receive up to date information on your product http www 3co...

Page 10: ...10 ABOUT THIS GUIDE ...

Page 11: ...n your office connect them all to a single Internet outlet and harness the combined power of all of your computers OfficeConnect Wireless 11g Cable DSL Gateway The OfficeConnect Wireless 11g Cable DSL Gateway is designed to provide a cost effective means of sharing a single broadband Internet connection amongst several wired and wireless computers The Gateway also provides protection in the form o...

Page 12: ...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 Figure 2 Example Network Using a Wireless Cable DSL Gateway ...

Page 13: ...erver to enable remote access to Web FTP and other services on your network Security Firewall protection against Internet hacker attacks and encryption to protect wireless network traffic Filtered access of inappropriate Web sites using the built in URL filter Package Contents The Gateway kit includes the following items One OfficeConnect Wireless 11g Cable DSL Gateway One power adapter for use wi...

Page 14: ...rt RJ 45 connector An active Internet access account A Web browser that supports JavaScript such as Netscape 4 7 or higher Internet Explorer 5 0 or higher or Mozilla 1 2 1 or higher Front Panel The front panel of the Gateway contains a series of indicator lights LEDs that help describe the state of various networking and connection operations Figure 3 Gateway Front Panel 1 Alert LED Orange Indicat...

Page 15: ...your network from the Internet Continuously on A fault has been detected with your Gateway during the start up process Refer to Chapter 6 Troubleshooting 2 Power LED Green Indicates that the Gateway is powered on 3 Wireless LAN WLAN Status LED 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 ...

Page 16: ...reless Antennae The antennae on the product should be placed in a V position when initially installed CAUTION Do not force the antennae beyond their mechanical stops Rotating the antennae further may cause damage 7 Power Adapter Socket Only use the power adapter supplied with this Gateway Do not use any other adapter 8 Power Adapter OK LED Green Indicates that the power adapter is supplying power ...

Page 17: ...ports Using suitable RJ 45 cable you can connect your Gateway to a computer or to any other piece of equipment that has an Ethernet connection for example a hub or a switch The LAN ports will automatically set themselves to MDI or MDIX depending on the device to which they are connected and the type of cable used ...

Page 18: ...18 CHAPTER 1 INTRODUCING THE GATEWAY ...

Page 19: ...nes importantes de sécurité avant de mettre en route Positioning the Gateway You should place the Gateway in a location that is conveniently located for connection to the cable or DSL modem that will be used to connect to the Internet is centrally located to the wireless computers that will connect to the Gateway A suitable location might be on top of a high shelf or similar furniture to optimize ...

Page 20: ...ct units Only stick the feet to the marked areas at each corner of the underside of your Gateway Wall Mounting There are two slots on the underside of the Gateway that can be used for wall mounting When wall mounting the unit ensure that it is within reach of the power outlet You will need two suitable screws to wall mount the unit To do this 1 Ensure that the wall you use is smooth flat dry and s...

Page 21: ... information dynamically over PPTP you need a User Name Password and PPTP Server Address You only need a PPPoE Service Name if your ISP requires one Do not enter anything if your ISP does not require this information If your ISP allocates fixed or static IP information you need the following information PPPoE User Name ______________________ PPPoE Password ______________________ PPPoE Service Name...

Page 22: ...sically connect it to a cable or DSL modem and then connect it to a computer in order to be able to access the Internet See Figure 5 Figure 5 Connecting the Gateway To use your Gateway 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 Gateway 2 Insert the other end of t...

Page 23: ...so that they can make use of the Gateway to communicate with the Internet 3Com recommends that you perform the initial Gateway configuration from a computer that is directly connected to one of the LAN ports If you configure the Gateway from a wireless computer note that you may lose contact with the Gateway if you change the wireless configuration To communicate wirelessly with your Gateway your ...

Page 24: ...24 CHAPTER 2 HARDWARE INSTALLATION ...

Page 25: ...nge this then you should use the Discovery program on the Gateway CD ROM to detect and configure your Gateway Refer to Appendix A for information on using the Discovery program Obtaining an IP Address Automatically Windows 2000 If you are using a Windows 2000 based computer use the following procedure to change your TCP IP settings 1 From the Windows Start Menu select Settings Control Panel 2 Doub...

Page 26: ...l 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 ...

Page 27: ... Restart your computer Windows 95 98 ME 1 From the Windows Start Menu select Settings Control Panel 2 Double click on Network Select the TCP IP item for your network card and click on Properties 3 In the TCP IP dialog select the IP Address tab and ensure that Obtain IP address automatically is selected Click OK Macintosh If you are using a Macintosh computer use the following procedure to change y...

Page 28: ...creen similar to Figure 8 should be displayed 4 Select the Never Dial a Connection option Figure 8 Internet Properties Screen You may wish to remove the PPPoE client software from your computer to free resources as it is not required for use with the Gateway Disabling Web Proxy Ensure that you do not have a web proxy enabled on your computer Go to the Control Panel and click on Internet Options Se...

Page 29: ...e 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 Figure 9 Web Browser Location Field Factory Default 4 To log in as an administrator enter the password the default sett...

Page 30: ...correct the Country Selection screen will appear Select the country you wish to configure the Gateway for then click Apply Figure 11 Figure 11 Country Selection Screen 6 When you have selected a country either The Welcome screen will appear Figure 12 Select the Wizard tab and click Wizard or ...

Page 31: ... 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 Figure 12 Welcome Screen Figure 13 Wizard Screen ...

Page 32: ...g 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 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 p...

Page 33: ...e type of Internet connection you have Before setting up your 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 see page 34 ISP provides configuration dynamically via DHCP see page 35 ISP has provided a static IP address see page 36 PPTP is required some DSL users in Europ...

Page 34: ...he 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 Do not enter anything in this box if your ISP does not require a service name 4 Check all of your settings and then click Next Refer to LAN Settings on page 38 for...

Page 35: ...quirement enter the host name in the Host Name text box Figure 18 and click Next The Clone MAC Address screen displays Figure 19 Clone MAC Address Screen 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 directl...

Page 36: ...atic 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 5 Enter your primary DNS address in the Primary DNS Address text box 6 Enter your secondary DNS address in the Secondary DNS Address text box This step is optional Not all ISPs require a secondary D...

Page 37: ... 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 If they have been provided enter the addresses in the appropriate text boxes If not leave 0 0 0 0 in the boxes 5 Check all of your settings and then click Next Figure 22 displa...

Page 38: ... 23 LAN IP Address Screen This screen displays a suggested LAN IP address and subnet mask of the Gateway It also allows you to change the IP address and subnet mask DHCP The Gateway contains a Dynamic Host Configuration DHCP server that can automatically configure the TCP IP settings of every computer on your network Figure 24 DHCP Server Setup Screen To activate the DHCP Server option select Enab...

Page 39: ...haracters can be entered for the Service Area Name 3Com strongly recommends that you change the SSID to something other than the default If you are configuring the Gateway from a wireless computer any changes you make to the wireless configuration will result in communication between the Gateway and your computer being lost This is why 3Com strongly recommends that you configure the Gateway from a...

Page 40: ... then click Finish to save your settings 3Com recommends that you print this page for your records 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 Gateway again Your Gateway is now configured and ready for use For information on improving your Wireless network security see Wirele...

Page 41: ...e will appear in the main part of the screen Welcome displays the firmware version of the Gateway allows you to change your password and launch the Wizard LAN Settings allows you to configure IP address and subnet mask information set up DHCP server parameters and display the DHCP client list Wireless Settings enables disables access from wireless computers and provides facilities for improving th...

Page 42: ... required tab Getting Help On every screen a Help button is available which provides access to the context sensitive online help system Click Help for further assistance and guidance relating to the current screen Welcome Screen The Welcome section allows you to view the Notice board and to change your Password You can also gain access to the Configuration Wizard See Accessing the Wizard on page 2...

Page 43: ... To do this 1 Enter the current password in the Old Password field 2 Enter the new password in the New Password field 3 Enter the new password again in the Confirm Password field 4 Click Apply to save the new password The password is case sensitive If you have forgotten your password you need to reset the Gateway See Forgotten Password and Reset to Factory Defaults on page 85 ...

Page 44: ...re 29 Wizard Screen Click WIZARD to launch the configuration wizard Refer to Chapter 4 for information on how to run the wizard LAN Settings The LAN Settings menu provides the following options Unit Configuration Figure 30 Unit Configuration Screen ...

Page 45: ...of addresses for your network 4 Check all of your settings and then click Apply The DHCP server will give out addresses to both wired and wireless clients DHCP Clients List Figure 31 DHCP Clients List Screen The DHCP Clients List provides details on the devices that have received IP addresses from the Gateway The list is only created when the Gateway is set up as a DHCP server For each device that...

Page 46: ...ess would then be available for another device if there were no other IP addresses available Adding Fixed DHCP Mappings You can add Fixed Mappings so that the Gateway allocates an IP address chosen by you when it encounters a particular device You only need to create Fixed Mappings for devices that need a specific IP address For devices that do not need a specific IP address the Gateway will autom...

Page 47: ...less PCs can gain access to either the Internet or other PCs on your Wired or Wireless LAN through this Gateway Channel Selection The Channel Selector allows you to specify which Channel the Gateway will transmit and receive on If another access point or gateway nearby is using the same Channel as you there will be a reduction in the performance of your network If this seems to be the case you sho...

Page 48: ... 3Com recommends that you change the default name In order that your wireless computers can connect to the Gateway you must Use Infrastructure Mode not Adhoc Mode Have the same Service Area Name as the Gateway Have the same Channel number as the Gateway Use the same encryption type and keys as the Gateway Ensure that the PC is included in the authorized Wireless PCs list if Connection Control is e...

Page 49: ...r key and dynamic changes made to the key over time 3Com recommends that you use WPA with any clients which support it If you enable encryption on the Gateway you must reconfigure your wireless PCs to use exactly the same Encryption Type and Keys otherwise the devices will not understand each other The encryption methods used by the Gateway secure data transmitted through wireless communications b...

Page 50: ...00 to ff for example 1a 3 Click Apply to generate the key To enter the pre shared key as a pass phrase 1 Select Enabled Pre Shared Passphrase from the WPA Encryption Type drop down box 2 Enter a phrase of between 8 and 63 characters in length in the Passphrase field This passphrase will be used to generate a 256 bit key 3 Click Apply to generate the key Configuring WEP Encryption There are two lev...

Page 51: ...aranteed If you are experiencing difficulty the Manual Hex Key method is supported by most vendors There are four methods available to generate the encryption keys Manual Key Entry This method allows you to manually enter hex keys Virtually all manufacturers support this scheme Enter a two digit hexadecimal number in every box Hexadecimal numbers are formed from 0 9 and A F 3Com Encryption String ...

Page 52: ...ther wireless products choose the scheme that is compatible with these then enter the appropriate information If you encounter any difficulty when you enable WEP ensure that you check that each key on your wireless computer is exactly the same as each key on your Gateway In other words Key number 1 on the Wireless computer must have the same Hex number as Key number 1 on the Gateway Key 2 on the W...

Page 53: ... to the Gateway By default any wireless computer that has the same Service Area Name SSID channel and encryption settings as the Gateway can connect to it Select Only Authorized 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 Authorized Wireless PC list Authorized Wireless PCs Figure 36...

Page 54: ... will find this screen easier to use if you set up and make a note of all of your wireless PC s on your network first You may also add the entries manually if you know the MAC address To add a MAC address that is not in the list enter the MAC address in the appropriate fields A MAC address consists of 12 characters Valid characters are 0 9 and A F 3 Press Add Click Close to discard all changes Mod...

Page 55: ...ices 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 Profile Figure ...

Page 56: ...et up a profile once the Service Area Name SSID and Encryption settings have been configured in the Gateway 1 Enter a Profile Name up to 25 alphanumeric characters and then click Save Profile 2 Your browser will then prompt you to enter a file name and folder location in which to save the profile Once the profile has been saved it can be copied on to another PC and imported into the 3Com Wireless ...

Page 57: ...thod is popular with Cable providers This method is also used if your modem has a built in DHCP server 3 PPPoE DSL only If the installation instructions that accompany your modem ask you to install a PPPoE client on your PC then select this option To configure the Gateway you will need to know the following Username Password Service Name if required by your ISP When you install the Gateway you wil...

Page 58: ... 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 40 Choose an IP Allocation Mode from the drop down box Select an IP Allocation Mode from the following Static IP address to be specified manually see page 59 Dynamic IP address automatically allocated see page 60 PPPoE used by DSL providers only see page 61 ...

Page 59: ...rmation in this screen should be provided to you by your ISP If the information is already entered your ISP has pre configured your Gateway and you should go to step 7 3 Enter your subnet mask in the Subnet Mask text box 4 Enter your ISP Gateway address in the ISP Gateway Address text box 5 Enter your primary DNS address in the Primary DNS Address text box 6 Enter your secondary DNS address in the...

Page 60: ...ld Figure 42 2 Enter your Primary DNS Address and Secondary DNS address Your ISP may provide you with primary and secondary DNS addresses If they have been provided enter the addresses in the appropriate text boxes If not leave 0 0 0 0 in the boxes 3 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 4 If you us...

Page 61: ...en To setup the Gateway for use with a PPP over Ethernet connection use the following procedure 1 Select PPP over Ethernet in the IP Allocation Mode field Figure 43 2 Enter your Primary DNS Address and Secondary DNS address Your ISP may provide you with primary and secondary DNS addresses If they have been provided enter the addresses in the appropriate text boxes If not leave 0 0 0 0 in the boxes...

Page 62: ...ends your PPP over Ethernet session Since the Gateway contains its own PPPoE client you no longer need to run PPPoE client software on your computer to access the Internet PPTP Figure 44 PPTP Setup Screen To setup the Gateway for use with a PPTP connection use the following procedure 1 Select PPTP used by some European providers in the IP Allocation Mode field Figure 44 2 Enter your PPTP server ad...

Page 63: ... 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 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 Firewall On the main frame of the Firewall setup screen is a menu with...

Page 64: ...pply 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 ot...

Page 65: ...e ports 2 3 5 6 and 7 to be activated Special Applications Figure 48 Special Applications Screen Select Special Applications tab to display Authorized Application setup screen Figure 48 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 connection...

Page 66: ...e applications from the pull down list Figure 49 Figure 49 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 49 These values correspond to the outbound port numbers issued by the application The port numbers are specified using a comma separated list with hyphens...

Page 67: ...PC Privileges Screen Select PC Privileges to display the PC Privilege setup screen Figure 51 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 ...

Page 68: ...r 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 So for example entering 2 3 5 7 would cause ports 2 3 5 6 and 7 to be activated For e...

Page 69: ...k 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 URL Filter Select URL Filter to control your clients access to Web sites The Gateway s URL Filter has three settings Disabled Users can browse all Web sites None will be filtered Deny List...

Page 70: ...as multiple sub domains such as this badsite com and that badsite com then you can either Block them individually by entering this badsite com in one field and that badsite com in another or Block them by entering the keyword badsite com into one of the fields This will block all URLs containing the string badsite com As well as blocking this badsite com and that badsite com the keyword badsite co...

Page 71: ...p screen See PC Privileges on page 67 Allow List To stop users from accessing any Web sites that you have not specifically allowed choose Allow List in the URL Filter Type drop down box Figure 55 Figure 55 URL Filter Screen showing Allow List To allow a specific site enter the URL for that site For example to let your users browse a site called www goodsite com enter www goodsite com or goodsite c...

Page 72: ...m To filter a generic keyword enter it into one of the fields You should exercise caution when choosing a keyword as sites that you may wish to block may be allowed if you choose too general a keyword The Gateway filters all traffic from domains that have been blocked using the URL filter If need to access an external mail server FTP server or other named device outside your network you must list ...

Page 73: ... play allows compatible software to read and change some the Gateway s firewall settings This reduces the configuration required but lessens your control of the Gateway s firewall 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 ...

Page 74: ...t Only the specified IP address can manage the Gateway Any other users will be rejected 3 Enable administration from a whole subnet This option allows a number of users within a subnet to administer the Gateway 4 Enable administration from any Internet Host This options allows any host to access the administration pages To remotely administer your Gateway enter http xxx xxx xxx xxx 8000 in the loc...

Page 75: ...tart the Gateway simulating the effect of power cycling the unit No configuration information will be lost but the log files will be erased This function may be of use if you are experiencing problems and you wish to re establish your Internet connection Any network users who are currently accessing the Internet will have their access interrupted whilst the restart takes place and they may need to...

Page 76: ...g the correct time in the log files If you use Daylight saving tick the Enable Daylight savings box and then click Apply Figure 58 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 It does not cause the system clock to be updated for daylight savings time automatically ...

Page 77: ...iously saved to a file press Browse to locate the backup file on your computer and then click RESTORE to copy the data into the Gateway s memory The password will remain unchanged 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 1...

Page 78: ...uration settings it is recommended that you make a backup of the configuration beforehand in case the upgrade process fails for any reason for example the connection between the computer and the Gateway is lost while the new software is being copied to the Gateway The upgrade procedure can take up to two minutes and is complete when the Alert LED has stopped flashing and is permanently off Make su...

Page 79: ...your network and Internet connection Figure 61 Figure 61 Status Screen Usage Usage displays an approximate count of the traffic since the Gateway was last reset Figure 62 The counts are approximate and should be used as a guide only Contact your ISP for accurate logging information ...

Page 80: ...al events and security threats logged by the Gateway Figure 63 Logs Screen You may be asked to refer to the information on the Status and Logs screens if you contact your supplier for technical support Support Feedback Selecting Support Feedback from the main menu displays the Support and Feedback screens ...

Page 81: ...Support Screen Selecting the Support option on the main menu displays the support links screen which contains a list of Internet links that provide information and support concerning the Gateway Figure 64 Feedback Figure 65 Feedback Screen ...

Page 82: ...AY CONFIGURATION Selecting the Feedback option displays the Feedback screen and allows you to provide feedback to 3Com on the operation of your Gateway Figure 65 This screen should not be used to obtain technical support ...

Page 83: ...onnected your Gateway and computers together but cannot browse to the Gateway configuration screens check the following Confirm that the physical connection between your computer and the Gateway is OK and that the LAN Status LEDs on the Gateway and NIC are illuminated and indicating the same speed 10Mbps or 100Mbps Some NICs do not have status LEDs in which case a diagnostic program may be availab...

Page 84: ...ation screens but cannot access sites on the Internet check the following Confirm that the physical connection between the Gateway and the cable DSL modem is OK and that the link status LEDs on both Gateway and modem are illuminated Confirm that the connection between the modem and the cable DSL interface is OK Ensure that you have entered the correct information into the Gateway configuration scr...

Page 85: ... flash as the Gateway starts up and after approximately 30 seconds will start to flash more slowly typically 2 seconds on 2 seconds off Once the Alert LED has started to flash slowly remove power from the Gateway 5 Remove the cable connecting the Cable DSL port to the LAN port and reconnect one of your computers to one of the Gateway LAN ports 6 Re apply power to the Gateway and when the start up ...

Page 86: ...overage 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 Gateway 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 Gateway or trying a different chann...

Page 87: ...ng for your wireless computer Consult your Computer Card documentation and vendor for more details Power LED or Power Adapter OK LED Not Lit Check that your Gateway is receiving power by looking at the status of the Power LED on the front panel and the Power Adapter OK LED on the rear panel If both LEDs are lit green then the unit is receiving power If both LEDs are unlit then no power is being su...

Page 88: ... Gateway software on the accompanying CD ROM or 3Com web site http www 3com com and upload it to the Gateway to see if this clears the fault refer to Recovering from Corrupted Software below If this does not fix the problem contact your supplier for further advice During normal operation you may notice the Alert LED lighting briefly from time to time This indicates that the Gateway has detected a ...

Page 89: ... 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 4 Using the Web browser on the computer enter the following URL in the location bar http 192 168 1 1 This will connect you to the Microcode Recovery utility in the...

Page 90: ...ted 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 com Does the Gateway support virtual private networks VPNs The Gateway supports VPN passthrough which allows VPN clients on the LAN to communicate with VPN hosts on the Internet It is also poss...

Page 91: ...ly Asked Questions 91 is a database of technical information covering all 3Com products It is updated daily with information from 3Com technical support services and it is available 24 hours a day 7 days a week ...

Page 92: ...92 CHAPTER 6 TROUBLESHOOTING ...

Page 93: ... 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 Figure 66 Discovery Welcome Screen 2 When the Welcome screen is displayed click on Next and wait until the application discovers the Gateways connected to your LAN ...

Page 94: ...ay Screen 3 Figure 68 shows an example Discovered Devices screen Highlight the Wireless Cable DSL Gateway by clicking on it and press Next Figure 68 Discovery Finish Screen 4 Click on Finish to launch a web browser and display the login page for the Gateway ...

Page 95: ...vice over the network the Gateway must be correctly configured with the following IP information An IP address A Subnet Mask IP Addresses and Subnet Masks Each device on your network must have a unique IP address to operate correctly An IP address identifies the address of the device to which data is being sent and the address of the destination network IP addresses have the format n n n x where n...

Page 96: ...e 192 168 100 identifies the network on which the device resides Part two 8 identifies the device within the network This type of IP Address operates on a subnet mask of 255 255 255 0 See Table 4 for an example about how a network with three computers and a Gateway might be configured Table 4 IP Addressing and Subnet Masking Type Two In larger networks where there are more devices the IP address o...

Page 97: ...h gets reallocated once you disconnect from the network DHCP will work on any client Operating System such as Windows 95 Windows 98 or Windows NT 4 0 Also using DHCP means that the same IP address and subnet mask will never be duplicated for devices on the network DHCP is particularly useful for networks with large numbers of users on them Static Addressing You must enter an IP Address and the sub...

Page 98: ... 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 ...

Page 99: ...ssion rate 54Mbps automatic fallback to 48 36 24 18 12 or 6 Mbps Maximum channels 14 Range up to 304 8m 1000ft Frequency US Canada Europe 2 400 2 4835 GHz Sensitivity 6 12 18 24 36 48 Mbps 85 dBm 54 Mbps 66 dBm typical Modulation CCK BPSK QPSK OFDM 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 ra...

Page 100: ...sions Width 220 mm 8 7 in Depth 135 mm 5 3 in Height 24 mm 1 in Weight Approximately 500 g 1 1 lbs Standards Functional ISO 8802 3 IEEE 802 3 IEEE 802 11b 802 11g Wi Fi Safety UL60950 CSA 22 2 60950 IEC 60950 EN 60950 EMC EN 55022 Class B EN 55024 CISPR 22 FCC Part 15 Class B ICES 003 Class B CNS 13438 Class A ETSI EN 301 489 17 Radio CFR 47 FCC Part 15 207 15 209 15 247 and 15 249 ETS 300 328 2 4...

Page 101: ...XP Mac OS 8 5 or higher Unix Ethernet Performance The Gateway complies to the IEEE 802 3i u and x specifications Wireless Performance The Gateway has been designed to conform to the Wi Fi interoperability test standard Cable Specifications The Gateway supports the following cable types and maximum lengths Category 3 Ethernet or Category 5 Fast Ethernet or Dual Speed Ethernet Twisted Pair shielded ...

Page 102: ...102 APPENDIX C TECHNICAL SPECIFICATIONS ...

Page 103: ...ARNING Only stack the Gateway with other OfficeConnect units WARNING To ensure compliance with international safety standards only use the power adapter that is supplied with the unit WARNING The socket outlet must be near to the unit and easily accessible You can only remove power from the unit by disconnecting the power cord from the outlet WARNING This unit operates under SELV Safety Extra Low ...

Page 104: ... bei den zuständigen Stellen ob die Verwendung von Funkfrequenz in dem Bereich in dem der Bluetooth Access Point eingesetzt werden soll erlaubt ist VORSICHT Bei der Installation und beim Ausbau des Geräts ist mit höchster Vorsicht vorzugehen VORTSICHT Stapeln Sie das Geräts nur mit anderen OfficeConnect Gerätes zusammen VORSICHT Aufgrund von internationalen Sicherheitsnormen darf das Gerät nur mit...

Page 105: ... toutes les consignes Nous vous demandons de lire attentivement les consignes suivantes de sécurité avant d installer ou de retirer l appareil AVERTISSEMENT La Gateway fournit et utilise de l énergie radioélectrique radio fréquence rf L utilisation de l énergie radioélectrique est interdite dans certains environnements L utilisateur devra se renseigner sur l autorisation de cette énergie dans la z...

Page 106: ...ilisateurs 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 AVERTISSEMENT Débranchez l adaptateur électrique avant de retirer cet appareil AVERTISSEMENT Ports RJ 45 Il s agit de prises femelles blindées de données RJ 45 Vous...

Page 107: ...INEERING You may transfer the Software Documentation and the licenses granted herein to another party in the same country in which you obtained the Software and Documentation if the other party agrees in writing to accept and be bound by the terms and conditions of this Agreement If you transfer the Software and Documentation you must at the same time either transfer all copies of the Software and...

Page 108: ...licable to the Software are as stated on the Limited Warranty Card or in the product manual whether in paper or electronic form accompanying the Software Such warranties and limitations of liability are incorporated herein in their entirety by this reference GOVERNING LAW This Agreement shall be governed by the laws of the State of California U S A excluding its conflicts of laws principles and ex...

Page 109: ...ComCast Cox Excite Rogers Shaw Insight Videotron PPPoE DSL Usually special software installed on PC MacPOET WinPOET EnterNet 300 The Gateway has this software built in and you can remove it from your PC You will need to enter the user name and password that your ISP provided to you in the PPPoE page of the Gateway Leave the service name blank unless your ISP requires it Bell Century Tel Citizens P...

Page 110: ... the Internet Settings page CableSpeed Cnet Direct Link Drizzle DSL Extreme Earthlink Wireless Fast Point Flashcom GTE WhirlWind Heavenet HSA Corp I 55 InterAccess LinkLine Mission Nauticom NAS Omitel Onterra Phatpipe Rhythms Speakeasy Sterling XO Zyan Static Cable Cable Modem Always on ISP assigns specific IP information which needs to be entered on the Fixed IP page of the Gateway Cox Cable Spri...

Page 111: ...to other wireless clients and which acts as a bridge between wireless clients and a wired network such as Ethernet Wireless clients can be moved anywhere within the coverage area of the access point and still connect with each other If connected to an Ethernet network the access point monitors Ethernet traffic and forwards appropriate Ethernet messages to the wireless network while also monitoring...

Page 112: ...can transmit data up to speeds of 100 Mbps Category 5 cabling is better to use for network cabling than Category 3 because it supports both Ethernet 10 Mbps and Fast Ethernet 100 Mbps speeds Channel Similar to any radio device the OfficeConnect Wireless Cable DSL gateway allows you to choose different radio channels in the wireless spectrum A channel is a particular frequency within the 2 4GHz spe...

Page 113: ...t Identifier The ESSID is a unique identifier for your wireless network You must have the same ESSID entered into the gateway and each of it s wireless clients Ethernet A LAN specification developed jointly by Xerox Intel and Digital Equipment Corporation Ethernet networks use CSMA CD to transmit packets at a rate of 10 Mbps over a variety of cables Ethernet Address See MAC address Fast Ethernet A...

Page 114: ... Gateway see also Ad Hoc mode IP Internet Protocol IP is a layer 3 network protocol that is the standard for sending data through a network IP is part of the TCP IP set of protocols that describe the routing of packets to addressed devices An IP address consists of 32 bits divided into two or three fields a network number and a host number or a network number a subnet number and a host number IP A...

Page 115: ...xchanging information or sharing resources Networks vary in size some are within a single room others span continents Network Interface Card NIC A circuit board installed into a piece of computing equipment for example a computer that enables you to connect it to the network A NIC is also known as an adapter or adapter card Protocol A set of rules for communication between devices on a network The...

Page 116: ...connect more LANs than a bridge and are generally more sophisticated TCP IP 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 n...

Page 117: ...ss networking Encryption strength is 40 64 bit or 128 bit Wi Fi Wireless Fidelity This is the certification granted by WECA to products that meet their interoperability criteria see also 802 11b WECA Wireless Client The term used to describe a desktop or mobile PC that is wirelessly connected to your wireless network Wireless LAN Service Area Another term for ESSID Extended Service Set Identifier ...

Page 118: ...118 GLOSSARY ...

Page 119: ...rimary 36 37 59 secondary 36 37 59 Dynamic 57 Dynamic IP Address 35 57 63 F Firewall 63 Forgotten Password 85 G Gateway 13 I Internet addresses 95 Internet Addressing Mode 33 Internet Settings 57 dynamic IP address 57 PPPoE 57 PPTP 57 static IP address 57 IP Address 21 36 38 45 95 IP Allocation 58 ISP Connection 58 ISP Gateway Address 36 L LAN 38 44 LED 14 Login 94 Logs 80 M MAC Address 35 46 dele...

Page 120: ...Status 79 Subnet Mask 36 38 95 Summary 40 Support Information 80 Support Links 81 T TCP IP 25 27 38 95 Technical specifications 99 standards 99 Time Zone 32 76 U Unit Configuration 44 Upgrade 78 URL Filter 69 V Virtual Servers 63 64 W WAN 33 Web Proxy 28 Wireless authorized PCs 53 channel selection 47 client list 55 configuration 47 connection control 53 encryption 49 LED 15 networking 85 NIC 14 s...

Page 121: ...rtment of Communications Equipment Standards entitled Digital Apparatus ICES 003 These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio Channels Country 1 13 Australia Austria Bahrain Belarus Belgium Chile China Costa Rica Croatia Cyprus Czech Republic Denmark Finland France Germany G...

Page 122: ...ent into a different outlet so that equipment and receiver are on different branch circuits Consult the dealer or an experienced radio television technician for help The user may find the following booklet prepared by the Federal Communications Commission helpful How to Identify and Resolve Radio TV Interference Problems This booklet is available from the U S Government Printing Office Washington ...

Page 123: ...distance between the antennas and the user should not be less than 20 cm 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 and the Radio and Telecommunications Terminal Equipment Directive 99 5 EC CSA Statement This Class B digital apparatus meets all requirements of the Canadian Interfere...

Page 124: ...ireless Cable DSL Gateway must only be installed with approved antennas and a minimum separation distance of 20 cm 8 in must be maintained from the antenna to any nearby persons Potential RF Interference Canada CAUTION To prevent radio interference to the licensed service this device is intended to be operated indoors and away from windows to provide maximum shielding Equipment or it s transmit an...

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Page 126: ...services visit our World Wide Web site at www 3com com All specifications are subject to change without notice Copyright 2003 3Com Corporation All rights reserved 3Com and OfficeConnect are registered trademarks of 3Com Corporation All other company and product names may be trademarks of their respective companies DUA0055 4AAA01 Rev 01 ...

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