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3Com 3CRWE554G72T - OfficeConnect Wireless 11g Cable/DSL Router User Manual

Manual is about: Wireless 11g Cable/DSL Router

Summary of 3CRWE554G72T - OfficeConnect Wireless 11g Cable/DSL Router

  • Page 1

    Http://www.3com.Com/ part no. Dua0554-taaa02 published november 2004 officeconnect ® wireless 11g cable/dsl router user guide 3crwe554g72t 3crwe554g72tu.

  • Page 2

    3com corporation 350 campus drive marlborough, ma usa 01752-3064 copyright © 2004, 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 writt...

  • Page 3: Ontents

    C ontents a bout t his g uide naming convention 7 conventions 8 feedback about this user guide 8 related documentation 9 1 i ntroducing the r outer officeconnect wireless 11g cable/dsl router 11 router advantages 13 package contents 13 minimum system and component requirements 14 front panel 14 rear...

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    Windows 95/98/me 27 macintosh 27 disabling pppoe and pptp client software 28 disabling web proxy 28 4 r unning the s etup w izard accessing the wizard 29 password 32 time zone 33 wan settings 33 lan settings 40 dhcp 40 wireless settings 41 summary 42 5 r outer c onfiguration navigating through the r...

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    Firewall 73 virtual servers 73 special applications 75 pc privileges 77 url filter 80 content filter 83 spi 84 system tools 87 restart 88 time zone 88 configuration 89 upgrade 90 advanced 91 static route 91 rip 92 routing table 94 ddns 94 security 96 status and logs 98 status 98 usage 99 logs 100 su...

  • Page 6: Ip A

    A u sing d iscovery running the discovery application 111 windows installation (95/98/2000/me/nt) 111 b ip a ddressing the internet protocol suite 113 managing the router over the network 113 ip addresses and subnet masks 113 how does a device obtain an ip address and subnet mask? 115 dhcp addressin...

  • Page 7: Bout

    A bout t his g uide this guide describes how to install and configure the officeconnect wireless 11g cable/dsl router (3crwe554g72t and 3crwe554g72tu). This guide is intended for use by those responsible for installing and setting up network equipment; consequently, it assumes a basic working knowle...

  • Page 8

    8 a bout t his g uide conventions table 1 and table 2 list conventions that are used throughout this guide. Feedback about this user guide your suggestions are very important to us. They will help make our documentation more useful to you. Please e-mail comments about this document to 3com at: pddte...

  • Page 9

    Conventions 9 example: ■ officeconnect wireless 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...

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    10 a bout t his g uide.

  • Page 11: Ntroducing

    1 i ntroducing the r outer 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 ...

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    12 c hapter 1: i ntroducing the r outer 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 ...

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    Router advantages 13 router advantages the advantages of the router include: ■ shared internet connection for both wired and wireless computers ■ high speed 802.11g wireless networking ■ no need for a dedicated, “always on” computer serving as your internet connection ■ cross-platform operation for ...

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    14 c hapter 1: i ntroducing the r outer minimum system and component requirements your router requires that the computer(s) and components in your network be configured with at least the following: ■ a computer with an operating system that supports tcp/ip networking protocols (for example windows 9...

  • Page 15

    Front panel 15 ■ 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 th...

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    16 c hapter 1: i ntroducing the r outer 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...

  • Page 17

    Rear panel 17 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. 10 four 10/100 lan ports using suitable rj-45 cable, you can connect your router to a computer, or to any other piece of equipment that has an et...

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    18 c hapter 1: i ntroducing the r outer.

  • Page 19: Ardware

    2 h ardware i nstallation introduction 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 r...

  • Page 20

    20 c hapter 2: h ardware i nstallation when positioning your router, ensure: ■ 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...

  • Page 21

    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 infor...

  • Page 22

    22 c hapter 2: h ardware i nstallation if your isp allocates fixed or static ip information, you need the following information: 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 connecti...

  • Page 23

    Connecting the router 23 figure 5 connecting the router 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 cabl...

  • Page 24

    24 c hapter 2: h ardware i nstallation to communicate wirelessly with your router, your wireless nic should be set as follows: ■ encryption — none ■ service area name/ssid — 3com ■ channel — 11.

  • Page 25: Etting

    3 s etting u p y our c omputers 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 i...

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    26 c hapter 3: s etting u p y our c omputers 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 rest...

  • Page 27

    Obtaining an ip address automatically 27 windows xp 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 ...

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    28 c hapter 3: s etting u p y our c omputers 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 s...

  • Page 29: Unning

    4 r unning the s etup w izard accessing the 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...

  • Page 30

    30 c hapter 4: r unning the s etup w izard 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...

  • Page 31

    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 guide...

  • Page 32

    32 c hapter 4: r unning the s etup w izard 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 recom...

  • Page 33

    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 daylig...

  • Page 34

    34 c hapter 4: r unning the s etup w izard 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 ...

  • Page 35

    Accessing the wizard 35 3 enter your ppp over ethernet service name in the pppoe service name text box. 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...

  • Page 36

    36 c hapter 4: r unning the s etup w izard 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 w...

  • Page 37

    Accessing the wizard 37 4 enter your isp router 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 second...

  • Page 38

    38 c hapter 4: r unning the s etup w izard 6 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 pptp session. 7 check all of your settings, and then click next. Figure 22 displays. Figu...

  • Page 39

    Accessing the wizard 39 l2tp mode figure 23 l2tp mode screen to set up the router for use with an l2tp connection, use the following procedure: 1 enter your l2tp server address in the l2tp server address text box. 2 enter your l2tp user name in the l2tp user name text box. 3 enter your l2tp password...

  • Page 40

    40 c hapter 4: r unning the s etup w izard 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...

  • Page 41

    Accessing the wizard 41 wireless settings 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 ...

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    42 c hapter 4: r unning the s etup w izard 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...

  • Page 43

    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. For inform...

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    44 c hapter 4: r unning the s etup w izard.

  • Page 45: Outer

    5 r outer c onfiguration navigating through the router configuration pages 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 ...

  • Page 46

    46 c hapter 5: r outer c onfiguration ■ 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 a...

  • Page 47

    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 unauth...

  • Page 48

    48 c hapter 5: r outer c onfiguration 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 the lan settings menu provides the following options: unit configuration figure 32 unit configuration scr...

  • Page 49

    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 yo...

  • Page 50

    50 c hapter 5: r outer c onfiguration ■ ip address — the internet protocol (ip) address issued to the client machine. ■ host name — the client machine’s host name, if configured. ■ mac address — the media access control (mac) address of the client’s network card. ■ client type — whether the client i...

  • Page 51

    Wireless settings 51 figure 34 dhcp fixed mapping setup screen 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 router will automatically allocate addresses. To add a fixed mapping: 1 enter the ip address that...

  • Page 52

    52 c hapter 5: r outer c onfiguration configuration figure 35 configuration screen enable wireless networking use this check box to enable or disable the wireless section of your lan. When disabled, no wireless pcs can gain access to either the internet or other pcs on your wired or wireless lan thr...

  • Page 53

    Wireless settings 53 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...

  • Page 54

    54 c hapter 5: r outer c onfiguration nitro mode the presence of an 11b device in your network can adversely affect the performance of an 11g device, such as the router. Nitro mode ensures that the effects of an 11b device are minimized. 3com recommends that you enable nitro mode if you have one or ...

  • Page 55

    Wireless settings 55 the pre-shared key is used to start the dialog between the router and the client. During this dialog, a new key is agreed, making it more difficult to eavesdrop on wireless networks encrypted using wpa, than those encrypted using wep. ■ to use a radius server to authenticate eac...

  • Page 56

    56 c hapter 5: r outer c onfiguration 6 select the modify button to save the changes and return to the encryption screen, or select close to exit without saving the changes. 7 if required, repeat steps 2 to 6 for a secondary radius server. 8 click apply to generate the key. Using manual pre-shared k...

  • Page 57

    Wireless settings 57 using pre-shared passphrase figure 38 wpa encryption screen - pre-shared passphrase to set up pre-shared passphrase as the wpa type: 1 select pre-shared passphrase from the wpa type drop-down box. The screen shown in figure 38 displays. 2 enter a phrase of between 8 and 63 chara...

  • Page 58

    58 c hapter 5: r outer c onfiguration encryption keys figure 39 128 bit encryption keys screen - wep configuration figure 40 40 bit/64 bit encryption keys screen - wep configuration a key is a hexadecimal (0-9, a-f) number used to encrypt and decrypt the data. There can be up to 4 keys and each key ...

  • Page 59

    Wireless settings 59 on your wireless adapters also supporting this feature. Different manufacturers have developed different ways of converting plain text and so interoperability is not guaranteed. If you are experiencing difficulty, the manual hex key method is supported by most vendors. To set up...

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    60 c hapter 5: r outer c onfiguration 3 select the active transmit key, which is the key the router uses when it transmits. You can change the selected key periodically to increase the security of your network. Some wireless adapters have only one key available on their wep configuration page. If th...

  • Page 61

    Wireless settings 61 authorized wireless pcs figure 42 connection control detail screen to create a list of wireless computers that can access the router: 1 select the mac addresses of the wireless pc(s) for which you want to allow access. To select multiple mac addresses, hold down the ctrl key whi...

  • Page 62

    62 c hapter 5: r outer c onfiguration modifying a mac address to modify a mac address from the connection control screen: 1 click on the mac address to be modified. An example list is shown in figure 43 . 2 modify the mac address. 3 press apply to accept the changes. Figure 43 mac address table clic...

  • Page 63

    Wireless settings 63 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....

  • Page 64

    64 c hapter 5: r outer c onfiguration profile figure 46 profile screen some 3com wireless network adapters allow you to import wireless configurations via a ‘profile’. The router can generate a profile so that you do not need to configure your wireless pcs manually. The profile contains three items ...

  • Page 65

    Internet settings 65 can be copied on to another pc and imported into the 3com wireless network adapter. For instructions on how to import a profile, refer to the user guide that accompanies your 3com wireless network adapter(s). If, once the profile is imported, the wireless network adapter cannot ...

  • Page 66

    66 c hapter 5: r outer c onfiguration when you install the router, you will not need to use the pppoe software on your pc. 4 pptp (dsl or cable) pptp is only used by some european providers. If the installation instructions that accompany your modem ask you to setup a dialup connection using a pptp ...

  • Page 67

    Internet settings 67 static ip address figure 47 connection parameters screen - static ip to setup the router for use with a static ip address connection: 1 select static ip address (to be specified manually) in the ip allocation mode field ( figure 47 ). 2 enter your ip address in the ip address te...

  • Page 68

    68 c hapter 5: r outer c onfiguration dynamic ip address figure 48 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 sc...

  • Page 69

    Internet settings 69 ■ 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 manu...

  • Page 70

    70 c hapter 5: r outer c onfiguration 4 enter your ppp over ethernet user name in the pppoe user name text box. 5 enter a password in the pppoe password text box. 6 enter your ppp over ethernet service name in the pppoe service name text box. Not all isps require a pppoe service name. Only enter a s...

  • Page 71

    Internet settings 71 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. ( figure 50 ) 2 enter your pptp server address in the pptp server address text box (this is typically the address of ...

  • Page 72

    72 c hapter 5: r outer c onfiguration l2tp figure 51 l2tp setup screen check with your isp to make sure they support l2tp. To set up the router for use with an l2tp connection, use the following procedure: 1 select l2tp (used by some european providers) in the ip allocation mode field. 2 enter your ...

  • Page 73

    Firewall 73 ■ check the get ip by dhcp check box if you want to obtain the ip information from a dhcp server on the network. With this check box enabled, you can click release to release the wan ip address for the router, or click renew to renew the current wan ip address, using dhcp. ■ fill in the ...

  • Page 74

    74 c hapter 5: r outer c onfiguration feature should be used only if the virtual server or special applications options do not provide the level of access needed for certain applications. To configure one of your computers as a dmz host, enter the last digit(s) of the ip address of the computer in t...

  • Page 75

    Firewall 75 figure 54 custom setup screen click add to return to the virtual server settings screen. 4 click apply to save the settings. 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, ...

  • Page 76

    76 c hapter 5: r outer c onfiguration trigger port and incoming port(s), where traffic on the trigger port tells the firewall to open the incoming ports. Each defined special application only supports a single computer user, and up to 10 special applications can be defined. Any incoming ports opened...

  • Page 77

    Firewall 77 figure 57 other applications setup screen click add to save your settings. 3 click add in the special application settings screen ( figure 56 ), to save the configuration. Only one computer on your network can use the special application at any one time. Pc privileges figure 58 pc privil...

  • Page 78

    78 c hapter 5: r outer c onfiguration to use access control for all computers: 1 click pcs access authorized services only. 2 select all pcs to set up the access rights for all computers connected to the router. The screen shown in figure 59 displays. Figure 59 all pcs setup screen 3 if required, ch...

  • Page 79

    Firewall 79 schedule, check the appropriate check box for each day you want to allow access, and enter the permitted access times for each day in 24-hour clock format. For example, to allow access monday through friday between 9 am and 5 pm, check the check boxes for mon, tue, wed, thu and fri, and ...

  • Page 80

    80 c hapter 5: r outer c onfiguration allow access, and enter the permitted access times in 24-hour clock format. For example, to allow access monday through friday between 9 am and 5 pm, check the check boxes for mon, tue, wed, thu and fri, and enter 09:00 and 17:00 in the text boxes next to each o...

  • Page 81

    Firewall 81 to filter a specific site, enter the url for that site. For example, to stop your users from browsing a site called www.Badsite.Com, enter www.Badsite.Com or badsite.Com in one of the fields. If badsite.Com has multiple sub-domains, such as this.Badsite.Com and that.Badsite.Com then you ...

  • Page 82

    82 c hapter 5: r outer c onfiguration figure 62 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 ...

  • Page 83

    Firewall 83 the router filters all traffic from domains that have been blocked using the url filter. If you need to access an external mail server, ftp server or other named device outside your network, you must list it in one of the allow fields. You can filter up to 30 keywords and urls. Computers...

  • Page 84

    84 c hapter 5: r outer c onfiguration to activate content filtering: 1 select firewall from the main menu, then select the content filter tab. The content filter screen displays ( figure 63 ). Figure 63 content filter screen 2 make sure the enable content filter check box is checked. 3 select the co...

  • Page 85

    Firewall 85 1 select firewall from the main menu, then select the spi tab to display the spi screen ( figure 64 and figure 65 ): figure 64 spi screen - upper section figure 65 spi screen - lower section intrusion detection feature the intrusion detection feature limits access for incoming traffic at...

  • Page 86

    86 c hapter 5: r outer c onfiguration 3 if required, check the enable rip defect check box. This feature stops unacknowledged packets from accumulating in the input queue. Stateful packet inspection 4 the stateful packet inspection section displays a list of traffic types. If you leave the check box...

  • Page 87

    System tools 87 dos detect criteria 15 in the total incomplete tcp/udp sessions high text box, enter the number of unestablished sessions that will cause the software to start deleting half-open sessions. The default is 300. 16 in the total incomplete tcp/udp sessions low text box, enter the number ...

  • Page 88

    88 c hapter 5: r outer c onfiguration restart figure 66 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...

  • Page 89

    System tools 89 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 apply ( figure 67 ). The router reads th...

  • Page 90

    90 c hapter 5: r outer c onfiguration 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. The password will remain unchang...

  • Page 91

    Advanced 91 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...

  • Page 92

    92 c hapter 5: r outer c onfiguration ■ gateway - the gateway used to route data to the network specified by the network address. 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 ...

  • Page 93

    Advanced 93 check the enable rip mode check box to configure rip on the router. The screen shown in figure 72 displays figure 72 enable rip mode screen the screen displays rip information for the lan interface and wan interface. To set up or change the information for one or both interfaces: 1 selec...

  • Page 94

    94 c hapter 5: r outer c onfiguration routing table select the routing table tab to display routing information used by the router. The information is displayed in the format shown in figure 73 figure 73 routing table screen ddns dynamic domain name server (ddns) enables you to map a static domain n...

  • Page 95

    Advanced 95 to set up ddns: 1 select advanced from the main menu, then select the ddns tab. The ddns screen displays ( figure 74 ). Figure 74 ddns screen 2 select a ddns service providerfrom the drop-down list. This can be either tzo.Com or dyndns.Org. Tzo.Com if you select tzo.Com: 1 in the domain ...

  • Page 96

    96 c hapter 5: r outer c onfiguration 4 in the refresh time box, enter how often you want the service to automatically refresh, in days. The default is three days. 5 click apply to make this service active. Security select security to display the security screen ( figure 75 ). Figure 75 security scr...

  • Page 97

    Advanced 97 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 ...

  • Page 98

    98 c hapter 5: r outer c onfiguration 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. See figure 75 . Status and logs selecting status and logs from the main menu displays the status, usage, and logs scre...

  • Page 99

    Status and logs 99 figure 77 status screen - lower section usage usage displays an approximate count of the traffic since the router was last reset. ( figure 78 ) the counts are approximate and should be used as a guide only. Contact your isp for accurate logging information. Figure 78 usage screen.

  • Page 100

    100 c hapter 5: r outer c onfiguration logs logs will allow you to view both the normal events, and security threats logged by the router. Figure 79 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/fee...

  • Page 101

    Support/feedback 101 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 router ( figure 80 ). Feedback figure 81 feedback screen selecting the feedback option displays the feedba...

  • Page 102

    102 c hapter 5: r outer c onfiguration.

  • Page 103: Roubleshooting

    6 t roubleshooting basic connection checks ■ 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 ...

  • Page 104

    104 c hapter 6: t roubleshooting connections tab and click on the lan settings button at the bottom. Make sure that the proxy server option is unchecked. ■ 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 i...

  • Page 105

    Forgotten password and reset to factory defaults 105 forgotten password and reset to factory defaults 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 conf...

  • Page 106

    106 c hapter 6: t roubleshooting ■ 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 set...

  • Page 107

    Power led or power adapter ok led not lit 107 ■ 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 5...

  • Page 108

    108 c hapter 6: t roubleshooting alternatively, quote the part number for your region: table 3 power adapter part numbers alert led the alert led will flash when the router unit is first powered up while the system software checks the hardware for proper operation. Once the router has started normal...

  • Page 109

    Frequently asked questions 109 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 late...

  • Page 110

    110 c hapter 6: t roubleshooting 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...

  • Page 111: Sing

    A u sing d iscovery running the discovery application 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. Dis...

  • Page 112

    112 a ppendix a: u sing d iscovery figure 83 discovered router screen 3 figure 84 shows an example discovered devices screen. Highlight the cable/dsl router by clicking on it, and press next. Figure 84 discovery finish screen 4 click on finish to launch a web browser and display the login page for t...

  • Page 113: Ip A

    B ip a ddressing 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 th...

  • Page 114

    114 a ppendix b: ip a ddressing 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....

  • Page 115

    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 table 5 for an example about how a network (only four computers represented) and a router might be configured. Table 5 ip addressing and subnet masking how does a devic...

  • Page 116

    116 a ppendix b: ip a ddressing 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 s...

  • Page 117: Echnical

    C t echnical s pecifications 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 d...

  • Page 118

    118 a ppendix c: t echnical s pecifications encryption: 40/64 bit wep, 128 bit wep, wpa maximum clients: 128 o/p power 18dbm 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 ...

  • Page 119

    119 systems. Rss-210 environmental: en 60068 (iec 68) *see “fcc statement” on page 140 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...

  • Page 120

    120 a ppendix c: t echnical s pecifications.

  • Page 121: Afety

    D s afety i nformation 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 u...

  • Page 122

    122 a ppendix d: s afety i nformation 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: warnh...

  • Page 123

    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 aus...

  • Page 124

    124 a ppendix d: s afety i nformation 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...

  • Page 125: Ser

    E e nd u ser s oftware l icense a greement 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 (ì3c...

  • Page 126

    126 a ppendix e: e nd u ser s oftware l icense a greement 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 ar...

  • Page 127: Isp I

    F isp i nformation information regarding popular isps wan types characteristics popular isps dynamic ip (clone mac) 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, adelph...

  • Page 128

    128 a ppendix f: isp i nformation *bell includes bell advantage, bell canada, bell south, pacbell and southwestern bell. Static (dsl) dsl modem, always on. Need to enter all ip information from isp in the static ip address section of the internet settings page. Cablespeed, cnet, direct link, drizzle...

  • Page 129: Lossary

    G lossary 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 s...

  • Page 130

    130 g lossary 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...

  • Page 131

    G lossary 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 dns stands for domain name system, which allows internet host computers to have a domain name (such as 3com.Com) and one or more i...

  • Page 132

    132 g lossary 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 ful...

  • Page 133

    G lossary 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 ...

  • Page 134

    134 g lossary pptp point-to-point tunneling protocol is a method of secure data transmission between two remote sites over the internet. Rip routing information protocol. Rip allows an administrator to set up routing information on one rip enabled device, and have that routing information replicated...

  • Page 135

    G lossary 135 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...

  • Page 136

    136 g lossary 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...

  • Page 137: Ndex

    I ndex 137 i ndex a access rights 79 addresses ip 113 administration password 32, 47 advanced 91 ddns 94 rip 92 routing table 94 security 96 static route 91 automatic addressing 115 c cable specifications 119 channels 139 clone mac address 68 configuration backup 89 restore 90 connection policy 86 c...

  • Page 138

    138 i ndex wireless 14 nitro mode 54 p password 29, 47 pc privileges 77 ping 97 pppoe 21, 28, 34, 65, 69 pptp 21, 66, 70 profile 64 r remote administration 97 reset to factory defaults 90, 105 restart 88 rip 92 setting up 92 routing table 94 s safety information 19 security advanced settings 96 remo...

  • Page 139: Egulatory

    R egulatory n otices for the w ireless 11 g c able /dsl r outer channels use of the wireless 11g cable/dsl router is only authorized for the channels approved by each country. For proper installation, login to the management interface and select your country from the drop down list. Table 5 below de...

  • Page 140

    140 fcc statement this equipment has been tested and found to comply with the limits for a class b digital device, pursuant to part 15 of the fcc rules, and the canadian department of communications equipment standards entitled, “digital apparatus,” ices-003. These limits are designed to provide rea...

  • Page 141

    141 information to the user if this equipment does cause interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: ■ reorient the receiving antenna. ■...

  • Page 142

    142 exposure to radio frequency radiation: the radiated output power of the 3com officeconnect wireless 11g cable/dsl router is far below the fcc radio frequency exposure limits. Nevertheless, the 3com officeconnect wireless 11g cable/dsl router shall be used in such manner that the potential for hu...

  • Page 143

    143 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 antenna) that is installed outdoors is subject to licensing. Industry ...

  • Page 144

    144.

  • Page 146

    3com corporation, corporate headquarters, 350 campus drive, marlborough, ma usa 01752-3064. To learn more about 3com products and services, visit our world wide web site at www.3com.Com all specifications are subject to change without notice. Copyright © 2004 3com corporation. All rights reserved. 3...