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3Com 3CRADSL72 User Manual

Manual is about: ADSL 11g

Summary of 3CRADSL72

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    Http://www.3com.Com/ part no. Dua-adsl72-aaa01 rev. 01 published sept 2003 adsl 11g wireless router user guide 3cradsl72.

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    3com corporation 5500 bayfront plaza santa clara, california 95052-8145 copyright © 2003, 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) withou...

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    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 adsl 11g wireless router 11 router advantages 13 package contents 13 minimum system and component requirements 14 front panel 14 rear panel 15 2 h ardwa...

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    4 r unning the s etup w izard accessing the wizard 27 29 dsl settings 29 summary 34 5 r outer c onfiguration navigating through the router configuration pages 35 main menu 35 home screen 35 home 36 lan setup 36 lan settings 37 dhcp client list 38 internet wan 39 connection type 39 pppoe 40 pppoa 41 ...

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    Dmz 60 wan ping blocking 61 security log 61 utilities 62 restart router 62 restore factory default 63 save/backup settings 63 restore previous settings 64 firmware update 64 system settings 65 administrator password 65 time and time zone 66 remote management 66 nat enable 66 universal plug and play ...

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    B t echnical s pecifications standards 80 c s afety i nformation d e nd u ser s oftware l icense a greement g lossary i ndex r egulatory n otices for the adsl 11 g w ireless r outer.

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    A bout t his g uide this guide describes how to install and configure the adsl 11g wireless router (3cradsl72). This guide is intended for use by those responsible for installing and setting up network equipment; consequently, it assumes a basic working knowledge of lans (local area networks) and in...

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    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...

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    Conventions 9 example: ■ adsl 11g wireless router user guide ■ part number duadsl7-2aaa01 ■ page 24 do not use this e-mail address for technical support questions. For information about contacting technical support, please refer to the support and safety information sheet. Related documentation in a...

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    10 a bout t his g uide.

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    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 gateway 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...

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    Rear panel 15 if this led illuminates successful username/password has been authenticated with your isp. 4 wireless lan (wlan) status led green if the led is on it indicates that wireless networking is enabled. If the led is flashing, the link is ok and data is being transmitted or received. If the ...

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    16 c hapter 1: i ntroducing the r outer feature, which means either straight-through or a crossover cable can be used. 8 reset button if you want to reset your router to factory default settings, and cannot access the web management interface (for example, due to a lost password), then you may use t...

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    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...

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    18 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...

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    Connecting the router 19 figure 5 connecting the gateway 3 run the provided telephone cable from the wall jack providing adsl service to the adsl port on your adsl router. When inserting an adsl rj-11 plug, be sure the tab on the plug clicks into position to ensure that it is properly seated. If you...

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    20 c hapter 2: h ardware i nstallation figure 6 installing with a splitter or if you are using a splitterless (g.Lite) connection, then your service provider will attach the outside adsl line directly to your phone system.In this case you can connect your phones and computer directly to the incoming...

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    Connecting the router 21 figure 7 installing without a splitter you have now completed the hardware installation of your router. Next you need to set up your computers so that they can make use of the router to communicate with the internet. 3com recommends that you perform the initial router config...

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    22 c hapter 2: h ardware i nstallation.

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    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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    24 c hapter 3: s etting u p y our c omputers figure 8 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 9 . Click ok. Figure 9 internet protocol (tcp/ip) properties screen 7 rest...

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    Obtaining an ip address automatically 25 windows xp 1 from the windows start menu, select control panel. 2 click on network and internet connections. 3 click on the network connections icon. 4 double click on lan or high speed connection icon. A screen titled local area connection status will appear...

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    26 c hapter 3: s etting u p y our c omputers disabling pppoe and pptp client software if you have pppoe client software installed on your computer, you will need to disable it. To do this: 1 from the windows start menu, select settings > control panel. 2 double click on internet options. 3 select th...

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    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...

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    28 c hapter 4: r unning the s etup w izard figure 12 router login screen 5 when you have logged in either: ■ the home screen will appear ( figure 13 ). Select wizard from the top menu bar. Or ■ if your router has not been configured before, the wizard will launch automatically (refer to figure 14 )....

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    Accessing the wizard 29 figure 13 home screen dsl settings figure 14 dsl settings screen.

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    30 c hapter 4: r unning the s etup w izard the dsl mode window allows you to set up the router for the type of internet connection you have. Before setting up your dsl connection mode, have your account information from your isp ready. Select a dsl mode from the following: ■ pppoe see page 30 ■ pppo...

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    Accessing the wizard 31 to setup the router for use with a ppp over ethernet (pppoe) connection, use the following procedure: 1 enter your ppp over ethernet user name in the username text box. 2 enter your ppp over ethernet password in the password text box. 3 re-type your ppp over ethernet password...

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    32 c hapter 4: r unning the s etup w izard check all of your settings, and then click next. Rfc1483 routed mode to setup the router for use with an rfc1483 routed connection: figure 17 rfc1483 routed configuration screen 1 enter your internet ip address in the wan ip text box. 2 enter the subnet mas...

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    Accessing the wizard 33 figure 18 rfc1483 bridged configuration screen 5 enter your vpi and vci informaiton in the vpi/vci text boxes..

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    34 c hapter 4: r unning the s etup w izard check all of your settings, and then click next. Summary figure 19 configuration summary screen when you complete the setup wizard, a configuration summary will display. Verify the configuration information of the router and then click apply to save your se...

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    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 ...

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    36 c hapter 5: r outer c onfiguration home figure 20 home screen there are two buttons on this screen - connect and disconnect. These buttons allow you to manually connect or disconnect your router from your isp’s service. Lan setup your router is equipped with a dhcp server that will automatically ...

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    Lan setup 37 ■ specify the ip address lease time. Default = forever ■ specify a local domain name. Default = none ■ to make changes, click "lan settings" on the lan tab to the left. The router will also provide you with a list of all client computers connected to the network. To view the list, click...

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    38 c hapter 5: r outer c onfiguration 3 if you need to, you can change the range of addresses given out by the router by changing the ip pool starting address and ip pool ending address fields. 4 specify the dhcp lease time by selecting the required value from the lease time drop down list. The leas...

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    Internet wan 39 ■ client’s network card. As you connect more devices, the client list will grow to a maximum number of 253 clients. Internet wan from these pages you can configure the settings for your dsl connection. Connection type figure 23 connection type screen the connection type screen is use...

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    40 c hapter 5: r outer c onfiguration pppoe figure 24 pppoe settings screen 1 enter the user name assigned to you by your isp in the user name field. 2 enter the password assigned to you by your isp in the password field. Re-enter your password in the retype password field. 3 if your isp assigns you...

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    Internet wan 41 enter a value of 0 to disable this timeout. 8 click apply changes. Pppoa figure 25 pppoa settings screen 1 enter the user name assigned to you by your isp in the user name field. 2 enter the password assigned to you by your isp in the password field. Re-enter your password in the ret...

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    42 c hapter 5: r outer c onfiguration checked, then you will have to manually connect and disconnect using the buttons on the home screen (see page 35 ). 7 if you want your router to automatically disconnect from the internet automatically after a period of inactivity, specify a time in the idle tim...

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    Internet wan 43 multiple protocol over atm figure 27 mutli protocol over atm screen 1 enter the ip address, subnet mask and default gateway information provided by your isp into the ip address, subnet mask and default route fields. 2 enter the vpi and vci parameters provided to you by your isp in th...

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    44 c hapter 5: r outer c onfiguration dns figure 28 dns screen if your isp provided you with specific dns addresses to us, enter them into the appropriate fields on this screen and press apply changes. Many isp's do not require you to enter this information into the router. If you are using a static...

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    Wireless 45 this screen allows you to enable/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 through this router. Select the required setting, and press apply changes. Channel and ssid figure 3...

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    46 c hapter 5: r outer c onfiguration of many wireless network adapters on the market today. It will scan the "air" for any available network and allow the computer to select the network from the site survey. Turning off the broadcast of the ssid will help increase security. 4 select the wireless mo...

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    Wireless 47 ■ wpa (with radius server) (see page 50 ) select the required value from the drop down list, and press apply changes. Disabled in this mode, wireless transmissions will not be encrypted, and will be visible to everyone. However, when setting up or debugging wireless networks it is often ...

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    48 c hapter 5: r outer c onfiguration numbers. The key must be between 8 and 63 characters long and can include spaces and symbols. Note that each client that connects to the network must use the same key. 2 press apply changes. 128-bit wep figure 33 128-bit wep screen wep is the basic mechanism to ...

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    Wireless 49 64-bit wep figure 34 64-bit wep screen wep is the basic mechanism to transmit your data securely over the wireless network. Matching encryption keys must be setup on your router and wireless client devices to use wep. 1 you can either enter your wep key as 5 pairs of hex digits (0-9, a-f...

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    50 c hapter 5: r outer c onfiguration wpa (with radius server) figure 35 wpa (with radius server) screen wpa (wireless protected access) provides dynamic key changes and constitutes the best security solution. In a wireless network where not all devices support wpa, wep (wired equivalent privacy) sh...

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    Firewall 51 firewall figure 36 firewall screen your router is equipped with a firewall that will protect your network from a wide array of common hacker attacks including ping of death (pod) and denial of service (dos) attacks. You can turn the firewall function off if needed. Turning off the firewa...

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    52 c hapter 5: r outer c onfiguration application gateways figure 37 application gateways screen application gateways let you specify specific ports to be open for specific applications to work properly with the network address translation (nat) feature of the router. A list of popular applications ...

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    Firewall 53 if your application is not here, you will need to check with the application vendor to determine which ports need to be configured. You can manually input this port information into the router.To do this: 1 specify the trigger port (the one used by the application when it is initialized)...

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    54 c hapter 5: r outer c onfiguration computers are protected by a firewall, machines from the internet cannot get to them because they cannot be 'seen'. If you need to configure the virtual server function for a specific application, you will need to contact the application vendor to find out which...

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    Firewall 55 access control allows users to define the traffic type permitted or not-permitted to the internet. This screen allows you to enable or disable all access control rules. Select the appropriate enable filtering funciton radio button, and press apply changes to save the settings. To edit or...

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    56 c hapter 5: r outer c onfiguration 4 select the services to be blocked. A list of popular services is given on this screen, to block a particular service place a check in the appropriate blocking checkbox. If the service to be restricted is not listed on the screen, you can enter a custom range o...

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    Firewall 57 for example, entering a keyword of “xxx” would block access to any url that contains the string “xxx”. To complete this configuration, you will need to create or modify an access rule in the "access control" section (see “access control” on page 54 ). From the "access control add pc" sec...

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    58 c hapter 5: r outer c onfiguration figure 43 add schedule rule screen 2 enter a name and comment for the schedule rule in the name and comment fields. 3 specify the schedule rules for the required days and times - note that all times should be in 24 hour format. 4 press apply changes..

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    Firewall 59 mac address filtering figure 44 mac address filtering screen the mac address filter is a powerful security feature that allows you to specify which computers are allowed on the wired or wireless network. Any computer attempting to access the network that is not specified in the filter li...

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    60 c hapter 5: r outer c onfiguration dmz figure 45 dmz screen if you have a client pc that cannot run an internet application properly from behind the firewall, you can open the client up to unrestricted two-way internet access. This may be necessary if the nat feature is causing problems with an a...

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    Firewall 61 wan ping blocking figure 46 wan ping blocking screen computer hackers use what is known as "pinging" to find potential victims on the internet. By pinging a specific ip address and receiving a response from the ip address, a hacker can determine that something of interest might be there....

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    62 c hapter 5: r outer c onfiguration press refresh to update the display. Press clear to clear the log (note that all current entries will be erased). Press save to save the log to disk in a text file. When prompted for a location to save the file to, specify a filename and location, and then press...

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    Utilities 63 restore factory default figure 49 restore factory default screen using this option will restore all of the settings in the router to the factory (default) settings. It is recommended that you backup your settings before you restore all of the defaults. To restore the factory default set...

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    64 c hapter 5: r outer c onfiguration you can save your current configuration by using this feature. Saving your configuration will allow you to restore it later if your settings are lost or changed. It is recommended that you backup your current configuration before performing a firmware update. Re...

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    Utilities 65 please download the firmware file to your pc first, and then press browse and select the firmware file. Press update to upload the firmware to the router. System settings figure 53 system settings screen administrator password the router ships with a default password of 1234admin. 3com ...

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    66 c hapter 5: r outer c onfiguration the login timeout option allows you to set the period of time that you can be logged into the router's setup interface. The timer starts when there is no activity. For example, you have made some changes in the setup interface, then left your computer alone with...

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    Utilities 67 have a single ip address and you turn nat off, the computers on your network will not be able to access the internet. Other problems may also occur. Turning off nat will not affect your firewall functions. Universal plug and play universal plug and play is a technology that offer seamle...

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    68 c hapter 5: r outer c onfiguration.

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    6 t roubleshooting basic connection checks ■ check that the router is connected to your computers and to the telephone line, and that all the equipment is powered on. Check that the lan status and dsl leds on the router are illuminated, and that any corresponding leds on the nic are also illuminated...

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    70 c hapter 6: t roubleshooting ■ if you cannot browse to the router, use the winipcfg utility in windows 95/98/me to verify that your computer has received the correct address information from the router. From the start menu, choose run and then enter winipcfg . Check that the computer has an ip ad...

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    Wireless networking 71 4 press and hold the reset button on the rear panel (see “rear panel” on page 15 ) for 5 seconds. 5 the router will restart, and when the start-up sequence has completed, browse to: http://192.168.2.1 and run the configuration wizard. You may need to restart your computer befo...

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    72 c hapter 6: t roubleshooting additionally consider moving the wireless computer closer to the router to confirm that the building structure or fittings are not adversely affecting the connectivity. If this resolves the problem consider relocating the wireless computer or the router, or trying a d...

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    Frequently asked questions 73 ensure that one of your computers has a copy of the new software image file stored on its hard disk or available on cd-rom. The latest software is available on 3com’s web site at: www.3com.Es . 1 remove power from the router and disconnect the telephone line and all you...

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    74 c hapter 6: t roubleshooting there are only 4 lan ports on the router. How are additional computers connected? You can expand the number of connections available on your lan by using hubs, switches and wireless access points connected to the router. 3com wireless access points and hubs and switch...

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    A 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...

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    76 a ppendix a: 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 ‘192.1...

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    How does a device obtain an ip address and subnet mask? 77 this type of ip address operates on a subnet mask of ‘255.255.0.0’. See table 4 for an example about how a network (only four computers represented) and a router might be configured. Table 4 ip addressing and subnet masking how does a device...

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    78 a ppendix a: 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 su...

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    B t echnical s pecifications this section lists the technical specifications for the adsl 11g wireless router. Adsl 11g wireless router interfaces dsl connection lan connection — four 10mbps/100mbps dual speed ethernet ports (10base-t/100base-tx) wlan interfaces standard ieee 802.11g, direct sequenc...

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    80 a ppendix b: t echnical s pecifications 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 = 133 mm (5.2 in.) ■ height = 38 mm (1.5 in.) wei...

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    81 system requirements operating systems the router will support the following operating systems: ■ windows 95/98 ■ windows nt 4.0 ■ windows me ■ windows 2000 ■ windows xp ■ mac os 8.5 or higher ■ unix ethernet performance the router complies to the ieee 802.3i, u and x specifications. Cable specifi...

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    82 a ppendix b: t echnical s pecifications.

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    C 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...

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    84 a ppendix c: s afety i nformation warning: rj-45 ports. These are shielded rj-45 data sockets. They cannot be used as telephone sockets. Only connect rj-45 data connectors to these sockets. Wichtige sicherheitshinweise vorsicht: warnhinweise enthalten anweisungen, die sie zu ihrer eigenen sicherh...

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    85 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 ausb...

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    86 a ppendix c: 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 ...

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    D e nd u ser s oftware l icense a greement 3com corporation end user software license agreement you should carefully read the following terms and conditions before downloading, installing and using this product, the use of which is licensed by 3com corporation ("3com") to its customers for their use...

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    88 a ppendix d: e nd u ser s oftware l icense a greement and developed solely at private expense. The software is delivered as "commercial computer software" as defined in dfars 252.227-7014 (june 1995) or as a commercial item as defined in far 2.101(a) and as such is provided with only such rights ...

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    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...

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    90 g lossary common speed. The order of preference (best first) is: 100base-tx full duplex, 100base-tx half duplex, 10base-t full duplex, and 10base-t half duplex. Auto-negotiation is defined in the ieee 802.3 standard for ethernet and is an operation that takes place in a few milliseconds. Bandwidt...

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    G lossary 91 host computers and their respective domain names and ip addresses, so that when a domain name is requested (as in typing “3com.Com” into your internet browser), the user is sent to the proper ip address. The dns server address used by the computers on your home network is the location o...

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    92 g lossary ieee institute of electrical and electronics engineers. This american organization was founded in 1963 and sets standards for computers and communications. Ietf internet engineering task force. An organization responsible for providing engineering solutions for tcp/ip networks. In the n...

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    G lossary 93 mac address media access control address. Also called the hardware or physical address. A layer 2 address associated with a particular network device. Most devices that connect to a lan have a mac address assigned to them as they are used to identify other devices in a network. Mac addr...

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    94 g lossary server a computer in a network that is shared by multiple end stations. Servers provide end stations with access to shared network services such as computer files and printer queues. Ssid service set identifier. Some vendors of wireless products use ssid interchangeably with essid. Subn...

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    G lossary 95 url filter a url filter is a feature of a firewall that allows it to stop its clients form browsing inappropriate web sites. Wan wide area network. A network that connects computers located in geographically separate areas (for example, different buildings, cities, or countries). The in...

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    96 g lossary.

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    I ndex a addresses ip 75 automatic addressing 77 c cable specifications 81 channels 99 conventions notice icons, about this guide 8 text, about this guide 8 d dhcp 38, 77 dhcp server 25 dns 24 dynamic ip address 32 f forgotten password 70 i internet addresses 75 ip address 37, 75 l led 14 n network ...

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    98 i ndex.

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    R egulatory n otices for the adsl 11 g w ireless r outer channels use of the adsl 11g wireless 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 details the ch...

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    100 frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. Information to the user if this equipment does cause interfer...

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    101 ■ federal communications commission 47 cfr part 15, subpart b 15.107 (a)class b conducted limits 15.109 (a)class b radiated emissions limits ■ 15.107 (e)class b conducted limits 15.109 (g)class b radiated emissions limits exposure to radio frequency radiation: the radiated output power of the 3c...

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    102.

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    3com corporation, corporate headquarters, 5500 great america parkway, santa clara, ca 95052-8145, usa. 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 © 2003 3com corporation. All rights ...