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3Com 3CRWDR100A-72 - OfficeConnect ADSL Wireless 11g Firewall Router User Manual
Summary of 3CRWDR100A-72 - OfficeConnect ADSL Wireless 11g Firewall Router
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Http://www.3com.Com/ part no. Dua100a-72aaa01 rev. 01 published september 2004 officeconnect adsl wireless 11g firewall router user guide 3crwdr100a-72 3crwdr100b-72 3crwdr100u-72.
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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 writ...
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 adsl wireless 11g firewall router 11 router advantages 13 package contents 13 minimum system and component requirements 14 front panel 14 ...
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4 r unning the s etup w izard accessing the setup wizard 27 setup wizard - connection type 29 5 r outer c onfiguration navigating through the router configuration pages 39 main menu 39 status screen 39 status 40 lan setup 40 lan settings 41 wireless settings 43 configuring wireless 43 encryption 44 ...
Page 5: Ip A
Upgrade 74 admin password 75 time and time zone 76 status and logs 77 adsl status 77 logs 77 6 t roubleshooting basic connection checks 79 browsing to the router configuration screens 79 connecting to the internet 80 forgotten password and reset to factory defaults 80 wireless networking 81 recoveri...
Page 6: Adsl
C s afety i nformation d e nd u ser s oftware l icense a greement e o btaining s upport for your p roduct register your product 99 purchase value-added services 99 troubleshoot online 100 access software downloads 100 telephone technical support and repair 100 contact us 101 g lossary r egulatory n ...
Page 7: Bout
A bout t his g uide this guide describes how to install and configure the officeconnect adsl wireless 11g firewall router (3crwd100x-72). 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 (l...
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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: ■ officeconnect adsl wireless 11g firewall router user guide ■ part number dua100a-72aaa01 ■ page 24 do not use this e-mail address for technical support questions. For information about contacting technical support, please refer to appendix c . Related documentation in additi...
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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...
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Rear panel 15 3 online led green if this led is on, your username/password has been authenticated successfully 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...
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16 c hapter 1: i ntroducing the r outer 7 adsl port using the rj11 cable provided, you should connect your router to the telephone socket via a splitter. 8 power adapter socket only use the power adapter that is supplied with this router. Do not use any other adapter. 9 reset button if you want to r...
Page 17: 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 please note the f...
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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 router 1 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.
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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.
Page 23: 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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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...
Page 27: Unning
4 r unning the s etup w izard accessing the setup wizard the router setup program is web-based, which means that it is accessed through your web browser (netscape navigator 4.7 or higher, internet explorer 5.0 or higher, or mozilla 1.2.1 or higher). To use the setup wizard: 1 ensure that you have at...
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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 status screen will appear ( figure 13 ). Select setup wizard from the menu. Or ■ if your router has not been configured before, the wizard will launch automatically (refer to figure 14 )....
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Accessing the setup wizard 29 setup wizard - connection type figure 14 connection type screen the connection type screen allows you to set up the router for the type of internet connection you have. Before setting up your connection type, have your account information from your isp ready. Select a d...
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30 c hapter 4: r unning the s etup w izard pppoe mode figure 15 pppoe screen 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 passwor...
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Accessing the setup wizard 31 figure 16 wireless settings screen 7 set the wireless channel you want to use from the channel drop-down list. 8 specify the ssid to be used by your wireless network in the ssid field. If there are other wireless networks in your area, you should give your wireless netw...
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32 c hapter 4: r unning the s etup w izard 3 re-type your ppp over atm password in the retype password text box. 4 enter your vpi and vci information in the vpi/vci text boxes. 5 select the encapsulation type (llc or vc mux) in the encapsulation drop-down list. This information will have been provid...
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Accessing the setup wizard 33 figure 19 bridged mode configuration screen 1 enter your vpi and vci information in the vpi/vci text boxes. 2 select the encapsulation type (llc or vc mux) in the encapsulation drop-down list. This information will have been provided to you by your isp. 3 check all of y...
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34 c hapter 4: r unning the s etup w izard routing mode over atm (rfc 1483 routed mode) to setup the router for use with an rfc1483 routed connection: figure 21 routing mode screen 1 enter your internet ip address in the wan ip text box. 2 enter the subnet mask in the subnet mask text box. 3 enter t...
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Accessing the setup wizard 35 figure 22 wireless settings screen 8 set the wireless channel you want to use from the channel drop-down list. 9 specify the ssid to be used by your wireless network in the ssid field. If there are other wireless networks in your area, you should give your wireless netw...
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36 c hapter 4: r unning the s etup w izard 4 enter the default router in the default gateway text box. 5 enter the dns address in the dns text box. 6 enter your vpi and vci information in the vpi/vci text boxes. 7 select the encapsulation type (llc or vc mux) in the encapsulation drop-down list. Thi...
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Accessing the setup wizard 37 configuration summary figure 25 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 settings. 3com recommends that you print this page...
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38 c hapter 4: r unning the s etup w izard.
Page 39: 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 ...
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40 c hapter 5: r outer c onfiguration status figure 26 status 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 automatica...
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Lan setup 41 the router will also provide you with a list of all client computers connected to the network. Lan settings figure 27 lan settings screen the lan settings screen is used to specify the lan ip address of your router, and to configure the dhcp server. 1 select lan settings and then specif...
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42 c hapter 5: r outer c onfiguration dhcp clients list the dhcp clients list provides details on the devices that have received ip addresses from the router. The list is only created when the router is set up as a dhcp server. For each device that is connected to the lan the following information i...
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Wireless settings 43 wireless settings from these pages you can configure the settings for wireless connections. Figure 29 wireless settings screen this screen allows you to enable or disable the wireless section of your lan. When disabled, no wireless pcs can gain access to either the internet or o...
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44 c hapter 5: r outer c onfiguration a feature of many wireless network adapters is that a computer's ssid can be set to any, which means it looks randomly for any existing wireless network. The available networks are then displayed in a site survey, and your computer can select a network. By click...
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Wireless settings 45 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 useful to use this security mode. Wpa-psk (no server) figure 32 wpa-psk (no server) screen wpa (wifi protecte...
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46 c hapter 5: r outer c onfiguration 128-bit wep figure 33 128-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 13 ...
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Wireless settings 47 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 ...
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48 c hapter 5: r outer c onfiguration wpa (with radius server) figure 35 wpa (with radius server) screen wpa (wifi 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) should...
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Wireless settings 49 wireless wds settings figure 36 wireless wds settings screen the router supports wds (wireless distribution system). Wds enables one or more access points to rebroadcast received signals to extend range and reach, though this can affect the overall throughput of data. To enable ...
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50 c hapter 5: r outer c onfiguration internet settings from these pages you can configure the settings for your dsl connection. Connection type figure 37 connection type screen the connection type screen is used to configure the parameters for your dsl connection. The information necessary to compl...
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Internet settings 51 pppoe figure 38 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 enter your ppp over ethernet service nam...
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52 c hapter 5: r outer c onfiguration 8 if you want your router to automatically disconnect from the internet automatically after a period of inactivity, specify a time in the idle time (minutes) field. Enter a value of 0 to disable this timeout. 9 enter the mtu value supplied by your isp. If you do...
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Internet settings 53 6 if you want your router to connect to the internet every time a pc needs to access it, check the dial on demand checkbox. If this box is not checked, then you will have to manually connect and disconnect using the buttons on the home screen (see page 39 ). 7 if you want your r...
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54 c hapter 5: r outer c onfiguration routing mode over atm (rfc 1483 routed mode) figure 41 routing mode 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 isp default gateway fields. 2 enter the vpi and vci ...
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Internet settings 55 dynamic/fixed ip in 1483 bridge mode (for multiple pcs) figure 42 dynamic/fixed ip for bridge mode screen 1 check the get wan ip by dchp field if your isp allocates ip addresses using dhcp. 2 enter your internet ip address in the wan ip text box. 3 enter the subnet mask in the s...
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56 c hapter 5: r outer c onfiguration if your isp provided you with specific dns addresses to use, enter them into the appropriate fields on this screen and click apply. Many isps do not require you to enter this information into the router. If you are using a static ip connection type, then you may...
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Routing 57 routing from these pages you can configure routing parameters. Your router supports the following routing functionality: ■ static routing ■ rip (routing information protocol) — rip allows the network administrator to set up routing information on one rip-enabled device and send that infor...
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58 c hapter 5: r outer c onfiguration rip parameters figure 46 rip parameter screen you can set up rip independently on both lan and wan interfaces. 1 select the rip mode enable radio button. 2 select the appropriate radio button to enable or disable auto summary. Auto summarization sends simplified...
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Firewall 59 7 in the authentication code field, enter the password that is required if the password option has been selected. 8 click apply. Routing table the routing table screen displays details for the default routing used by your router and any routing created using static routing or rip. Figure...
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60 c hapter 5: r outer c onfiguration your network completely vulnerable to hacker attacks, but 3com recommends that you turn leave the firewall enabled whenever possible. 1 enable or disable the firewall as required by selecting the appropriate radio button. 2 click apply. Special applications figu...
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Firewall 61 if your application is not listed, 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 initializ...
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62 c hapter 5: r outer c onfiguration to enter settings: 1 click add, or edit if you want to edit an existing record. 2 enter the ip address in the space provided for the internal machine. 3 enter the port type (tcp, udp, or both tcp and udp). 4 specify the public port that will be seen by clients o...
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Firewall 63 to control access to specific internet services: 1 click on add pc. A screen similar to that shown below will appear figure 52 add pc screen 2 enter a description for the filter you are defining in the client pc description field. 3 enter the ip address or ip address range into the clien...
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64 c hapter 5: r outer c onfiguration url blocking figure 53 url blocking screen to configure the url blocking feature, use the table on the url blocking page to specify the websites (www.Somesite.Com) and/or keywords you want to filter on your network. For example, entering a keyword of xxx would b...
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Firewall 65 schedule rule figure 54 schedule rule screen the router can be configured to restrict access to the internet, e-mail or other network services at specific days and times. These schedule rules are used by the rules defined on the access control section of this screen (see “access control”...
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66 c hapter 5: r outer c onfiguration 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 click apply. Mac address filtering figure 56 mac address filtering ...
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Firewall 67 ■ copy the mac address by selecting the name of the computer from the dhcp clients list, and then in the mac address filtering list click copy to. Click apply to save the settings. Dmz figure 57 dmz screen if you have a client pc that cannot run an internet application properly from behi...
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68 c hapter 5: r outer c onfiguration advanced from the advanced screen, you can configure: ■ nat (network address translation) ■ universal plug and play ■ wan ping blocking ■ remote admin figure 58 advanced screen nat ■ nat — before you enable nat (network address translation), make sure you have c...
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Firewall 69 universal plug and play universal plug and play is a technology that offers seamless operation of voice messaging, video messaging, games, and other applications that are universal plug and play compliant. Some applications require the router's firewall to be configured in a specific way...
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70 c hapter 5: r outer c onfiguration ddns the router provides a list of dynamic dns providers for you to choose from. Dynamic domain name server (ddns) enables you to map a static domain name to a dynamic ip address. The router supports two ddns providers, tzo.Com and dyndns. Before you can set up ...
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Snmp 71 3 in the password text box, enter the account password. 4 click apply to make this service active. Snmp snmp (simple network management protocol) allows remote management of your router by a pc that has an snmp management agent installed. Snmp community figure 60 snmp community screen to con...
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72 c hapter 5: r outer c onfiguration snmp trap figure 61 snmp trap screen you can configure your router to send status messages to the snmp management agent if a problem occurs on the network. To configure traps: 1 in the ip address field, enter the ip address of the pc to which you want your route...
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System tools 73 system tools these pages lets you manage different parameters of the router and perform certain administrative functions. Restart router figure 62 restart router screen sometimes it may be necessary to restart (or reboot) the router. Restarting the router will not delete any of your ...
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74 c hapter 5: r outer c onfiguration backup/restore settings figure 64 backup/restore settings screen you can save your current configuration by clicking save in backup settings. Saving your configuration will allow you to restore it later if your settings are lost or changed. It is recommended tha...
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System tools 75 please download the firmware file to your pc first, and then click browse and select the firmware file. Click upgrade to upload the firmware to the router. Admin password figure 66 admin password screen the router ships with a default password of admin. 3com recommends that you chang...
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76 c hapter 5: r outer c onfiguration time and time zone figure 67 time and time zone screen the router keeps time by connecting to a simple network time protocol (sntp) server. This allows the router to synchronize the system clock to the internet. The synchronized clock in the router is used to re...
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Status and logs 77 status and logs you can use the status screen to view version numbers for your router’s software and hardware and check the status of connections to wan, lan and wlan interfaces. Adsl status figure 68 adsl status screen this screen shows modem status and statistics logs figure 69 ...
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78 c hapter 5: r outer c onfiguration ■ click clear to clear the log (note that all current entries will be erased). ■ click 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 click ok..
Page 79: Roubleshooting
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 sync leds on the router are illuminated, and that any corresponding leds on the nic are also illuminate...
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80 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 add...
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Wireless networking 81 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://192.168.1.1 and run the configuration wizard. You may need to restart your computer befo...
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82 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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Recovering from corrupted software 83 recovering from corrupted software if the system software has become corrupted, the router will enter a “recovery” state; dhcp is enabled, and the lan ip address is set to 192.168.1.1. Follow the instructions below to upload a new copy of the system software to ...
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84 c hapter 6: t roubleshooting frequently asked questions how do i reset the router to factory defaults? See “forgotten password and reset to factory defaults” on page 80 . How many computers on the lan does the router support? A maximum of 253 computers on the lan are supported. How many wireless ...
Page 85: Ip A
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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86 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? 87 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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88 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...
Page 89: Echnical
B t echnical s pecifications this section lists the technical specifications for the officeconnect adsl wireless 11g firewall router. Officeconnect adsl wireless 11g firewall router interfaces dsl connection lan connection — four 10mbps/100mbps dual speed ethernet ports (10base-t/100base-tx) wlan in...
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90 a ppendix b: t echnical s pecifications maximum clients: 128 o/p power 16dbm operating temperature 0 °c to 40 °c (32 °f to 105 °f) power 8va, 25 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.) weight ...
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Officeconnect adsl wireless 11g firewall router 91 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 ie...
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92 a ppendix b: t echnical s pecifications.
Page 93: Afety
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 u...
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94 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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95 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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96 a ppendix c: s afety i nformation conditions ne sont maintenues que si l'équipement auquel il est raccordé fonctionne dans les mêmes conditions. Avertissement: il n’y a pas de parties remplaceables par les utilisateurs ou entretenues par les utilisateurs à l’intérieur du moyeu. Si vous avez un pr...
Page 97: Ser
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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98 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 ...
Page 99: Btaining
E o btaining s upport for your p roduct register your product warranty and other service benefits start from the date of purchase, so it is important to register your product quickly to ensure you get full use of the warranty and other service benefits available to you. Warranty and other service be...
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100 a ppendix e: o btaining s upport for your p roduct troubleshoot online you will find support tools posted on the 3com web site at http://www.3com.Com/ 3com knowledgebase helps you troubleshoot 3com products. This query-based interactive tool is located at http://knowledgebase.3com.Com and contai...
Page 101
Contact us 101 to send a product directly to 3com for repair, you must first obtain a return authorization number (rma). Products sent to 3com, without authorization numbers clearly marked on the outside of the package, will be returned to the sender unopened, at the sender’s expense. If your produc...
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102 a ppendix e: o btaining s upport for your p roduct austria belgium denmark finland france germany hungary ireland israel italy 01 7956 7124 070 700 770 7010 7289 01080 2783 0825 809 622 01805 404 747 06800 12813 1407 3387 1800 945 3794 199 161346 luxembourg netherlands norway poland portugal sou...
Page 103: 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...
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104 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. Bandwid...
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G lossary 105 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 ...
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106 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 ...
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G lossary 107 mac media access control. A protocol specified by the ieee for determining which devices have access to a network at any one time. Mac address media access control address.Also called the hardware or physical address. A layer 2 address associated with a particular network device. Most ...
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108 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. Server a computer in a network that is shared by multiple end stations. Servers provide end stations with access ...
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G lossary 109 universal plug and play universal plug and play is a system which allows compatible applications to read some of their settings from the router. This allows them to automatically configure some, or all, of their settings and need less user configuration. Url filter a url filter is a fe...
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110 g lossary wlan wireless local area network. A wlan is a group of computers and devices connected together by wireless in a relatively small area (such as a house or office). Wpa wi-fi protected access. A dynamically changing encryption mechanism for wireless networking. Encryption strength is 25...
Page 111: Egulatory
R egulatory n otices for the o ffice c onnect adsl w ireless 11 g f irewall r outer channels use of the officeconnect adsl wireless 11g firewall router is only authorized for the channels approved by each country. For proper installation, login to the management interface and select your country fro...
Page 112
112 however, there is no guarantee that interference will not occur in a particular installation. 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 ...
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113 ■ 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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114.
Page 115: Ndex
I ndex numbers 128-bit wep 46 128-bit wep screen 46 1483 bridge mode 55 64-bit wep screen 47 a access control screen 62 add pc screen 63 add schedule rule screen 65 addresses ip 85 admin password screen 75 adsl status screen 77 advanced screen 68 automatic addressing 87 b backup/restore settings scr...
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116 i ndex configuring 56 mac address filtering screen 66 mode 30 n nat (network address translation) 68 nat-t (nat traversal) 68 network addresses 85 networking wireless 81 nic wireless 14 p password 27, 75 poison reverse 58 pppoa 31 pppoa screen 31 pppoa settings screen 52 pppoe 26, 30, 31 pppoe s...
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