Linksys BEFSR81 manuale d’uso

A Division of Cisco Systems, Inc . ® Model No . WIRED with 8-Port Switch Cable/DSL Router BEFSR81 User Guide EtherFast ®[...]

EtherFast Cable/DSL Router with 8-P ort Switch Copyright and T rademarks Linksys is a registered trademark or trademark of Cisco Systems, Inc . and/or its affiliates in the U.S . and certain other countries. Copyright © 2003 Cisco Systems, Inc . All rights reser ved. How to Use this Guide This User Guide has been designed to make unde rstanding ne[...]

EtherFast Cable/DSL Router with 8-P ort Switch Table of Contents Chapter 1: Introduction 1 Welcome 1 What’s in this Guide? 2 Chapter 2: Networking Basics 4 An Introduction to LANs 4 The Use of IP Addresses 4 Chapter 3: Getting to Know the Router 6 The Back Panel 6 The Front Panel 7 Chapter 4: Connecting the Router 8 Overview 8 Connection Instruct[...]

EtherFast Cable/DSL Router with 8-P ort Switch UPnP Forwarding 30 DMZ 31 QoS 32 Management 33 Log 35 Factory Defaults 36 Firmware Upgrade 37 Router 37 Local Network 38 Appendix A: Troubleshooting 39 Common Problems and Solutions 39 Frequently Asked Questions 49 Appendix B: Upgrading Firmware 53 Appendix C: Finding the MAC Address and IP Address for[...]

EtherFast Cable/DSL Router with 8-P ort Switch List of Figures Figure 3-1: Back Panel 6 Figure 3-2: Front Panel 7 Figure 4-1: Example of a Typical Network 8 Figure 4-2: Connect a PC 9 Figure 4-3: Connect the Power 9 Figure 5-1: TCP/IP for Windows 98 and Me 10 Figure 5-2: Obtain an IP address automatically for Windows 98 and Me 10 Figure 5-3: Intern[...]

EtherFast Cable/DSL Router with 8-P ort Switch Figure 7-9: DDNS Disabled 23 Figure 7-10: DDNS Using DynDNS.org 24 Figure 7-11: DDNS Using TZO.com 24 Figure 7-12: MAC Clone 25 Figure 7-13: Advanced Routing 25 Figure 7-14: Routing Table 26 Figure 7-15: Filter 27 Figure 7-16: MAC Filter Setting 27 Figure 7-17: VPN Passthrough 28 Figure 7-18: Port Rang[...]

1 Chapter 1: Introductio n Welcome EtherFast Cable/DSL Router with 8-P ort Switch Chapter 1: Introduction We lc o m e Thank you for choosing the EtherFast Cable/DSL Router with 8- Port Switch. This Router will allow your computers to share a high-speed Internet connection as w ell as resources, including files and printers. How does the Router do a[...]

2 Chapter 1: Introductio n What’s in this Guide? EtherFast Cable/DSL Router with 8-P ort Switch What’ s in this Gu ide? This user guide covers the basic steps for setting up a network with a router . After going through “Chapter 3: Getting to Know the Router , ” most users will only need to use the following chapters: • Chapter 4: Connect[...]

3 Chapter 1: Introductio n What’s in this Guide? EtherFast Cable/DSL Router with 8-P ort Switch • Appendix D: Windows Help This appendix describes how you can use Windows Help fo r instructions about networking , such as installing the TCP/IP protocol. • Appendix E: Glossary This appendix gives a brief glossar y of terms frequently used in ne[...]

4 Chapter 2: Networking Basics An Introduction to LANs EtherFast Cable/DSL Router with 8-P ort Switch Chapter 2: Networking Basics An Introduction to LANs Simply put, a router is a network device that connects two networks together . The Router connects your local area network (LAN), or the group of PCs in your home or office , to the Internet. The[...]

5 Chapter 2: Networking Basics The Use of IP Addresses EtherFast Cable/DSL Router with 8-P ort Switch A DHCP server can either be a designated PC on the network or another network device , such as the Router . By default, the Router’s Internet Connection T ype is Obt ain an IP auto matically (DHCP ). The PC or network device obtaining an IP addre[...]

6 Chapter 3: Getting to Kn ow the Router The Back Panel EtherFast Cable/DSL Router with 8-P ort Switch Chapter 3: Getting to Know the Router The Back P anel The Router’s ports and the Reset button are located on the back panel of the Router . Internet This Internet port connects to your cable or DSL modem. 1-8 These eight Ethernet ports connect t[...]

7 Chapter 3: Getting to Kn ow the Router The Front Panel EtherFast Cable/DSL Router with 8-P ort Switch The Front P anel The Router’ s LEDs, which inform you about netwo rk activities, are located on the front panel. QoS Green. The QoS LED lights up when the QoS feature is active . Po w e r Green. The Power LED lights up when the Router is powere[...]

8 Chapter 4: Connecting the Rou ter Overview EtherFast Cable/DSL Router with 8-P ort Switch Chapter 4: Connecting the Router Overview T o set up your network, do the following: • Connect the Router to one of you r PCs. • If necessar y , configure your PCs to obtain an IP addr ess automatically from the Rou ter . (By default, Windows 98, 2000, M[...]

9 Chapter 4: Connecting the Rou ter Connection Instructions EtherFast Cable/DSL Router with 8-P ort Switch Connection Instructions 1. Before you begin, make sure that all of your hardware is power ed off , includin g the Router , PCs, hubs, switches, and cable or DSL modem. 2. Connect one end of an Ethernet network cable to one of the numbered port[...]

10 Chapter 5: Configuring th e PCs Overview EtherFast Cable/DSL Router with 8-P ort Switch Chapter 5: Configuring the PCs Overview The instructions in this chapter will help you configure each of your computers so they will be able to communicate with the Router . Each PC must be set to obtain an IP address (or TCP/IP) address automatically (called[...]

11 Chapter 5: Configuring th e PCs Configuring Windows 2000 PCs EtherFast Cable/DSL Router with 8-P ort Switch 5. Click the OK button again. Windows may ask you for the original Windows installation disk or additional files. Supply them by pointing to the correct file location, e .g ., D:win98, D:win9x, c:windowsoptionscabs, etc . (if “D” [...]

12 Chapter 5: Configuring th e PCs Configuring Windows XP PCs EtherFast Cable/DSL Router with 8-P ort Switch 3. Select Internet Protocol (TCP/IP) , and click the Properties button. See Figure 5-5. 4. Select Obtain an I P address automatically (see Figure 5-6). Once th e new window appears, click the OK button. Click the OK button again (or the Clos[...]

13 Chapter 6: Configuring th e Router Overview EtherFast Cable/DSL Router with 8-P ort Switch Chapter 6: Configuring the Router Overview The instructions from your ISP tell you how to set up your PC for Inter net access. Because you are now using the Router to share Internet access among several computers, you will u se the setup information to con[...]

14 Chapter 6: Configuring th e Router Instructions EtherFast Cable/DSL Router with 8-P ort Switch Obtain an IP Automatically or DHCP If your ISP says that you are connecting through DHCP or a dyna mic IP address from your ISP , perfo rm these steps: A Select Obtain an IP autom atically as the Inter net Connection T ype, as shown in Figure 6-3. B Cl[...]

15 Chapter 6: Configuring th e Router Instructions EtherFast Cable/DSL Router with 8-P ort Switch PPPoE If your ISP says that you are connecting through a PPPoE or you normally enter a user name and password to access the Internet, perform th ese steps: A Select PPPoE as the Internet Connection T ype , as shown in Figure 6-5. B Enter the User Name [...]

16 Chapter 6: Configuring th e Router Instructions EtherFast Cable/DSL Router with 8-P ort Switch PPTP PPTP (shown in Figure 6-7) is a service used in Europe and Israel only . If you are using a PPTP connection, check with your ISP for the necessar y setup information. A When finished m aking your changes on this tab , click the Save Sett ings butt[...]

17 Chapter 7: Using The Router’s We b-based Utility Overview EtherFast Cable/DSL Router with 8-P ort Switch Chapter 7: Using The Router’ s W eb-based Utility Overview For your convenience , use the Router’s W eb-ba sed Utili ty to administer it. This chapter will explain all of the functions in this Utility . The Utility can be accessed via M[...]

18 Chapter 7: Using The Router’s We b-based Utility Quick and Easy Administration EtherFast Cable/DSL Router with 8-P ort Switch • VPN Passthrough. T o enable or disable IPSec , PP PoE, and/or PPTP Passthrough, use this screen. Applications & Ga ming • Port Range Forwarding. T o set up public ser vices or ot her specialized Internet appli[...]

19 Chapter 7: Using The Router’s We b-based Utility Basic Setup EtherFast Cable/DSL Router with 8-P ort Switch When finished making your changes on a tab, clic k the Sav e Settings button to save the changes, or click the Cancel Changes button to undo your changes. F or fu rther help on the tab, clic k the Help button. Basic Setup The Basic Setup[...]

20 Chapter 7: Using The Router’s We b-based Utility Basic Setup EtherFast Cable/DSL Router with 8-P ort Switch • User Name and Password. Enter the User Name and Password provided by your ISP . • Service Name. If provided b y your ISP , enter the Ser vice Name . • Connect on Demand and Max Idle Time . Y ou can configure the Router to cut you[...]

21 Chapter 7: Using The Router’s We b-based Utility Basic Setup EtherFast Cable/DSL Router with 8-P ort Switch • Keep Alive Option and Redial Period. This option keeps your RAS-enabled Internet access connected indefinitely , even when it sits idle. T o use this option, click the radio button next to Keep Alive . The defau lt Redial Period is 3[...]

22 Chapter 7: Using The Router’s We b-based Utility Basic Setup EtherFast Cable/DSL Router with 8-P ort Switch • User Name and Password. Enter the User Name and Password provided by your ISP . • Heart Beat Server . This is the IP address that the Router h as, when seen from the Internet. Y our ISP will provide you with the IP Address you need[...]

23 Chapter 7: Using The Router’s We b-based Utility DDNS EtherFast Cable/DSL Router with 8-P ort Switch Network Address Server Settings (DHCP) A Dynamic Host Configuration Protocol (DHCP) ser ver au tomatically assigns an IP address to each PC on your network for you. Unless you already have one , it is highly recommended that you leave the Route[...]

24 Chapter 7: Using The Router’s We b-based Utility MAC Address Clone EtherFast Cable/DSL Router with 8-P ort Switch DDNS • DDNS Service. If your DDNS service is provided by DynDNS .org, then select DynDNS.org from the drop-down menu. If your DDNS ser vice is provided by TZO , then select TZO.com . The features av ailable on the DDNS screen wil[...]

25 Chapter 7: Using The Router’s We b-based Utility Advanced Routing EtherFast Cable/DSL Router with 8-P ort Switch MAC Clone • MAC Clone Service T o use MAC address cloning, select Enab le . See Figure 7-12. • MAC Address. T o manually clone a MAC address, enter the 12 digits of your adapter ’ s MAC add ress in the on- screen fields. Then [...]

26 Chapter 7: Using The Router’s We b-based Utility Filter EtherFast Cable/DSL Router with 8-P ort Switch • Select Entry . Select the number of t he static route from the drop-down menu. The Router supports up to 20 static route entries. • Delete Entry . If you need to delete a route, select its number from the drop-down menu, and click the D[...]

27 Chapter 7: Using The Router’s We b-based Utility Filter EtherFast Cable/DSL Router with 8-P ort Switch Filter IP Address Range T o set up a filter using IP addresses, enter the range of IP addresses you wish to filter in the Start and End fields. Users who have filtered IP addresses will not be able to a ccess the Internet at all. If you only [...]

28 Chapter 7: Using The Router’s We b-based Utility VPN Passthrough EtherFast Cable/DSL Router with 8-P ort Switch VPN P assthrough The VPN Passthrough screen allows you to enable or disable passthrough for a variety of VPN methods. See Figure 7-17. VPN Passthrough • IPSec Passthrough. Intern et Protocol Security (IPSec) is a suite o f protocol[...]

29 Chapter 7: Using The Router’s We b-based Utility Port Trigger ing EtherFast Cable/DSL Router with 8-P ort Switch • Application. Enter the name of the application. • Start and End. Enter the number or range of external port(s) used by the serv er or Internet application. Check with the Internet application software documentation for more in[...]

30 Chapter 7: Using The Router’s We b-based Utility UPnP Forwarding EtherFast Cable/DSL Router with 8-P ort Switch • Start Port. Enter the starting port number of the Forwarded Range . • End Port. Enter the ending port number of the Fo rwarded Range . When finished making your changes on this tab , click the Save Settings button to save these[...]

31 Chapter 7: Using The Router’s We b-based Utility DMZ EtherFast Cable/DSL Router with 8-P ort Switch • HTTP (HyperT ext T ransport Protocol). The comm unicat ions protocol used to connect to ser vers on the World Wide W eb. Its primary function is to establish a connection with a web ser ver and transmit HTML pages to the client web browser .[...]

32 Chapter 7: Using The Router’s We b-based Utility QoS EtherFast Cable/DSL Router with 8-P ort Switch DMZ • DMZ. T o use this feature , select Enable . T o disable DMZ hosting, select Disable (see Fig ure 7-21). • DMZ Host IP Address. T o expose one PC, enter the computer’ s IP address. T o get the IP address of a computer , refer to “ A[...]

33 Chapter 7: Using The Router’s We b-based Utility Management EtherFast Cable/DSL Router with 8-P ort Switch • SMTP (Simple Mail T ransfer Protocol). The standard e-mail prot ocol on the Internet. It is a TCP /IP protocol that defines the message format and the message transfer agent (MT A), which stores and forwards the mail. • POP3 (Post O[...]

34 Chapter 7: Using The Router’s We b-based Utility Management EtherFast Cable/DSL Router with 8-P ort Switch Remote Router Access This feature allows you to access the Router from a remote location, via the Inter net. • Remote Upgrade . Remote Upgrade allows you to upgrade the Router’s firmware from a remote location. T o enable this feature[...]

35 Chapter 7: Using The Router’s We b-based Utility Log EtherFast Cable/DSL Router with 8-P ort Switch • SNMP T rusted Host. Y ou can restrict access to the Router’s SNMP information by IP address. Enter the IP address or range of IP addresses in the SNMP T rusted Host field. If this field is left blank, then access is permitted from any IP a[...]

36 Chapter 7: Using The Router’s We b-based Utility Factory Defaults EtherFast Cable/DSL Router with 8-P ort Switch • Incoming Log. Click the In coming Log button to view a temporary log of the Source IP addresses and Destination Port Numbers for all the incoming Internet traffic. Clic k the Refr esh button to update the log. See Figure 7-25. ?[...]

37 Chapter 7: Using The Router’s We b-based Utility Firmware Upgrade EtherFast Cable/DSL Router with 8-P ort Switch Firmwar e Upgrade The Firmware Upgrade screen allows you to upgrade the Router’s firmware . Before upgrading the firmware , download the Router ’ s fir mware upgrade file from the Linksys website , www .linksys.com . Then extrac[...]

38 Chapter 7: Using The Router’s We b-based Utility Local Network EtherFast Cable/DSL Router with 8-P ort Switch • Login Status. The status of the connection is displayed only for PPPoE , RAS, PPTP , or Heart Be at Sig nal connections. For these dial-u p style conne ctions, there is a Connect button to click if there is no connection and you wa[...]

39 Appendix A: Troublesh ooting Common Problems and So lutions EtherFast Cable/DSL Router with 8-P ort Switch Appendix A: T roubleshooting This appendix provides solutions to problems that may occur during the installation and operation of the Router . Read the description below to solve your problems. If you can't find an answer here , check [...]

40 Appendix A: Troublesh ooting Common Problems and So lutions EtherFast Cable/DSL Router with 8-P ort Switch B . Right-click the Local Area Connection that is associated with the Etherne t adapter you are using, and select the Properties option. C. In the Components checked are used by this connection box, highlight Internet Protocol (TCP/IP) , an[...]

41 Appendix A: Troublesh ooting Common Problems and So lutions EtherFast Cable/DSL Router with 8-P ort Switch 2. I want to test my Internet connection. A. Check your TCP/IP settings. For Windows 98 and Millennium: Refer to Windows Help and “Chapter 5: Configuring the PCs” for details. Make sure Obtain IP address automatic ally is selected in th[...]

42 Appendix A: Troublesh ooting Common Problems and So lutions EtherFast Cable/DSL Router with 8-P ort Switch • For Windows 98 and Millennium, click Start and Run . In the Open field, type comman d . Press the Enter key or click the OK button. • For Windows 2000 and XP , click Start and Ru n . In the Open field, type cmd . Press the Enter key o[...]

43 Appendix A: Troublesh ooting Common Problems and So lutions EtherFast Cable/DSL Router with 8-P ort Switch 4. I am not able to access the Router’ s Web-based Utility Setup page. A. Refer to “Problem #2, I want to test my Internet c onnection” to verify that your computer is properly connected to the Router . B . Refer to “ Appendix C: Fi[...]

44 Appendix A: Troublesh ooting Common Problems and So lutions EtherFast Cable/DSL Router with 8-P ort Switch documentation provided with the server yo u installed. Follow these steps to set up port forwarding through the Router’s W eb-ba sed Utility . We will be setting up web , ftp, and mail servers. A. Access the Router’ s Web-based Utility [...]

45 Appendix A: Troublesh ooting Common Problems and So lutions EtherFast Cable/DSL Router with 8-P ort Switch D . Select the protocol you will be using, TCP or UDP , or select Both . E. Enter the IP address of the PC or network device that you want the port server to go to. For example, if the web server ’ s Ether net adapter IP address is 192.16[...]

46 Appendix A: Troublesh ooting Common Problems and So lutions EtherFast Cable/DSL Router with 8-P ort Switch 9. I forgot my pa ssword, or the password prompt always appears when saving settings to the Router . Reset the Router to factory default by pressing the Reset button for 30 seconds and then releasing it. If you are still getting prompted fo[...]

47 Appendix A: Troublesh ooting Common Problems and So lutions EtherFast Cable/DSL Router with 8-P ort Switch B . T o upgrade the firmware , follow the steps in the Upgrade section found in “Chapter 7: Using the Router’s Web-based Utility” or “ Appendix B: Upg rading Firmware . ” 13. The firmware upgrade failed. The upgrade could have fai[...]

48 Appendix A: Troublesh ooting Common Problems and So lutions EtherFast Cable/DSL Router with 8-P ort Switch A. T o connect to the Router , go to the web browser , and enter http://192.1 68.1.1 or the IP address of the Router . B . Enter the password, if asked. (The default password is admin .) C. On the Basic Setup tab, look for the MTU option, a[...]

49 Appendix A: Troublesh ooting Frequently Asked Questions EtherFast Cable/DSL Router with 8-P ort Switch set to Never dia l a connect ion . For Netscape Navigator , click Edit , Preferences , Advanced , and Proxy . Make sure that Netscape Navigator is set to Dir ect connection to the Internet . Frequently Ask ed Questions What is the maximum numbe[...]

50 Appendix A: Troublesh ooting Frequently Asked Questions EtherFast Cable/DSL Router with 8-P ort Switch I set up an Unr eal T ournament Ser ver , but others on the LAN cannot join. What do I need to do? If you have a dedicated Unreal T our nament ser ver running, you need to create a static IP for each of the LAN computers and forward ports 7777,[...]

51 Appendix A: Troublesh ooting Frequently Asked Questions EtherFast Cable/DSL Router with 8-P ort Switch new features that you would like to use . Downloading a more current version of Router fir m ware will not enhance the quality or speed of your Internet connection, and m ay disrupt your current connection stability . Will the Rout er function [...]

52 Appendix A: Troublesh ooting Frequently Asked Questions EtherFast Cable/DSL Router with 8-P ort Switch What is the maximum number of VP N sessions allowed by the Router? The maximum number depends on many facto rs. At least one IPSec session will work through the Router; however , simultaneo us IPSec sessions may be possible , d epending on the [...]

53 Appendix B: Upgradin g Firmware EtherFast Cable/DSL Router with 8-P ort Switch Appendix B: Upgrading Firmware Y ou can use the Router’s W e b-ba sed Utility to upgrade the firmware; however , if you do so, you may lose the settings you have configured on the Router . T o upgrade the Route r’ s firmware , follow these instructions: 1. Downloa[...]

54 Appendix C: Findin g the MAC Add ress and IP Address for Your Ethernet Adapter Windows 98 or Me Instructions EtherFast Cable/DSL Router with 8-P ort Switch Appendix C: Finding the MA C Address and IP Address for Y our Ethernet Adapter This section describes how to find the MAC address for your computer’s Ethernet adapter so you can use the MAC[...]

55 Appendix C: Findin g the MAC Add ress and IP Address for Your Ethernet Adapter For the Router’s Web-based Utility EtherFast Cable/DSL Router with 8-P ort Switch 3. Write down the Physical Address as shown on your computer screen (Figure C-3); it is the MAC address for your Ethernet adapter . This appears as a series of numb ers and letters. Th[...]

56 Appendi x D: Wind ows Help EtherFast Cable/DSL Router with 8-P ort Switch Appendix D: Windows Help All networking products require Microsoft Windows. Windows is the most used operating system in the world and comes with many features that help make networking easier . These fea tures can be accessed through Windows Help and are described in this[...]

57 Appendix E: Glossary EtherFast Cable/DSL Router with 8-P ort Switch Appendix E: Glossar y 802.11a - An IEEE wireless networking standard that specifies a maximum data transfer rate of 54Mbps and an operating frequency of 5GHz. 802.11b - An IEEE wireless networking standard that specifies a maximum data transfer rate of 11Mbps and an operating fr[...]

58 Appendix E: Glossary EtherFast Cable/DSL Router with 8-P ort Switch Buffer - A block of memor y that temporarily holds data to be worked on later when a device is currently too busy to accept the data. Cable Modem - A device that con nects a computer to the cable television network, which in tur n connects to the Internet. CSMA/CA (Carrier Sense[...]

59 Appendix E: Glossary EtherFast Cable/DSL Router with 8-P ort Switch Dynamic IP Address - A temporar y IP address assigned by a DHCP server . Encryption - Encoding data to prevent it from being read by unauthorized people . Ethernet - An IEEE standard network protocol that specifies how data is placed on and retrieved from a common transmission m[...]

60 Appendix E: Glossary EtherFast Cable/DSL Router with 8-P ort Switch IPCONFIG - A Windows 2000 and XP utility that displays the IP address for a particular networking device. IPSec (Internet Pro tocol Security) - A VPN protocol used to implement secure exchange of packets at the IP layer . ISM band - Radio band used in w ireless networking transm[...]

61 Appendix E: Glossary EtherFast Cable/DSL Router with 8-P ort Switch PPP oE (Point to Point Proto col over Ethernet) - A type of broadband connection that provides authentication (username and password) in addition to data transport. PPTP (Point-to-Point T unneling Protocol) - A VPN protocol that allows the Point to Point Protoco l (PPP) to be tu[...]

62 Appendix E: Glossary EtherFast Cable/DSL Router with 8-P ort Switch TCP/IP (T ransmission Control Protocol/Inter net Protocol) - A network protocol fo r transmitting data that requires acknowledgement from the recipient of data sent. Te l n e t - A user command and TCP/IP protocol used for accessing remote PCs. TFTP (T rivial File T ransfer P ro[...]

63 Appendix F: Specifications EtherFast Cable/DSL Router with 8-P ort Switch Appendix F: Specifications Standards IEEE 802.3 (10BaseT), 802.3u (100BaseTX) Ports One 10/100 RJ-45 Port for Broadband Modem Eight 10/100 RJ-45 Switched Ports Button Reset Cabling T ype Ethernet Categor y 5 LEDs Power , QoS, Ethernet, Internet UPnP able/cert Y es OS Suppo[...]

64 Appendix G: Warranty Information EtherFast Cable/DSL Rout er with 8-P ort Switch Appendix G: W arranty Information LIMITED WARRANTY Linksys warrants to the original end user purchaser (“Y ou”) that, for a period o f one year , (the “Warranty Period”) Y our Linksys product will be free of defects in materials and workmanship under nor mal[...]

65 Appendix H: Regulatory Inf ormation EtherFast Cable/DSL Router with 8-P ort Switch Appendix H: Regulator y Information FCC ST A TEMENT This product has been tested and complies with the specification s for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to pr ovide reasonable protection against harmful i[...]

66 Appendix I: Contact Information EtherFast Cable/DSL Router with 8-P ort Switch Appendix I: Contact Information Need to contact Linksys? Visit us online for information on the latest products and updates to your existing products at: http://www .linksys.com or ftp.linksys.com Can't find information about a product you want to buy on the web?[...]