Linksys BEPSR41 manuale d’uso

Instant Broadband™ Series Cable/DSL Routers Use this guide to install the following products: BEFSR41 ver . 2 EtherFast ® Cable/DSL Router with 4-Port Switch BEFSRU31 EtherFast ® Cable/DSL Router with USB Port and 3-Port Switch BEFSR11 ver . 2 EtherFast ® 1-Port Cable/DSL Router User Guide[...]

COPYRIGHT & TRADEMARKS Copyright © 2002 Linksys, All Rights Reserved. Linksys and EtherFast are r egistered trademarks of Linksys. Instant Broadband is a trademark of Linksys. Micr osoft, Windows, and the Windows logo are r egistered trademarks of Micr osoft Corporation. All other trademarks and brand names are the pr operty of their respectiv[...]

EtherFast ® Cable/DSL Routers Chapter 7: Configure the PCs 35 Overview 35 Conf iguring W indo ws 95, 98, and Millennium PCs 36 Conf iguring W indo ws 2000 PCs 38 Conf iguring W indo ws XP PCs 40 Chapter 8: Configure the Router 42 Chapter 9: The Cable/DSL Router’ s Web-based Utility 47 Overview 47 Quick and Easy Router Administration 47 Setup 48 [...]

Instant Broadband ™ Series EtherFast ® Cable/DSL Routers Chapter 1: Introduction The Linksys EtherFast ® Cable/DSL Router Congratulations on the purchase of the EtherF ast Cable/DSL Router from Linksys! The Router is the perfect solution for connecting a netw ork of PCs to a high-speed broadband Internet connection and to an Ether net netw ork [...]

EtherFast ® Cable/DSL Routers 3 Instant Broadband ™ Series 2 Package Contents for the 1-Port Router (BEFSR11) • One EtherF ast 1-Port Cable/DSL Router • One Setup Wizard CD-R OM with User Guide Included • One P ow er Adapter • One F ast Star t Guide • One Registration Card (not sho wn) • One Windo ws PC equipped with: • TCP/IP Prot[...]

EtherFast ® Cable/DSL Routers The Router’ s f irew all (N A T) protects your netw ork of PCs so users on the pub- lic, Internet side cannot “see” your PCs. This is ho w your LAN, or netw ork, remains priv ate. The Router protects your netw ork by inspecting the f irst pack- et coming in through the W AN por t before deliv er y to the f inal [...]

This user guide co vers the basic steps for setting up a netw ork with a router . After going through the appropriate “Getting to Kno w the Router” chapter (Chapter 2, 3, or 4, depending on which Router y ou hav e), most users will onl y need to use the follo wing chapters: • Chapter 5: Connect the Router This chapter instructs you on ho w to[...]

EtherFast ® Cable/DSL Routers 9 Instant Broadband ™ Series 8 Pow e r Green . The Powe r LED lights up when the Router is po w ered on. Link/Act Gr een . The Link/Act LED ser v es two purposes. If the LED is continuously lit, the Router is successfull y connected to a device through the corresponding port ( 1 , 2 , 3 or 4 ). If the LED is flicker[...]

EtherFast ® Cable/DSL Routers 11 Instant Broadband ™ Series 10 Chapter 3: Getting to Know the 1- Port EtherFast Cable/DSL Router The rear panel of the Router is where all of the Router’ s cab ling connections are made, and where y ou can reset or conf igure the Router’ s LAN por t, as sho wn in Figure 3-1. WA N The WA N (W ide Area Netw ork)[...]

EtherFast ® Cable/DSL Routers Full/Col Gr een . The Full/Col LED also ser ves tw o pur poses. If this LED remains lit, a LAN port connection is being successful- ly maintained. If the LED flickers, the connection is experi- encing collisions. Infrequent collisions are normal. If this LED flickers too often, there ma y be a problem with your connec[...]

EtherFast ® Cable/DSL Routers 15 Instant Broadband ™ Series 14 This USB icon, sho wn in Figure 4-2, denotes the presence of a USB port or connector . The 3-P or t Router comes with a USB cable that has tw o different types of con- nectors. T ype A, the master connector, is shaped lik e a rectangle and plugs into your PC’ s USB port. T ype B , [...]

EtherFast ® Cable/DSL Routers The W AN Indicators Link Gr een . The Link LED lights up when a successful connec- tion is made betw een the Router and your broadband device or netw ork. Act Gr een . The Act LED flickers when the Router is sending or receiving data o ver the broadband WA N port. Diag Red . The Diag LED lights up when the Router goes[...]

EtherFast ® Cable/DSL Routers 19 Instant Broadband ™ Series 18 1. Before you be gin, make sure that all of y our hardw are is po w ered off, includ- ing the Router , PCs, hubs, switches, and cable or DSL modem. 2. If you ha ve the 4-P ort Router, go to step 2.A. If y ou hav e the 1-Port Router , go to step 2.B . If you ha ve the 3-P or t Router,[...]

EtherFast ® Cable/DSL Routers 21 Instant Broadband ™ Series 20 If the Router’ s LAN ports are all full and you still ha ve PCs and/or devices to connect, connect a hub or a switch to the Router using an Ethernet cable. T o do so, use the Router’ s Uplink port to connect to a standard por t on a hub or switch. This lea ves y ou with new , ope[...]

EtherFast ® Cable/DSL Routers 23 Instant Broadband ™ Series 22 3. Select Sear ch f or the best driv er for y our device (Recommended) , sho wn in Figure 6-2. Click the Ne xt button. 4. Insert the driver disk into the flopp y driv e, and select Floppy disk dri ves only , as sho wn in Figure 6-3. Click the Ne xt button to start the search for your[...]

EtherFast ® Cable/DSL Routers 7. W indows will notify y ou that it has completed copying the dri ver f iles to your PC, as sho wn in Figure 6-6. Click the Finish button to complete the USB driv er installation. 8. W indows will ask y ou if you w ant to restar t your PC, as sho wn in Figure 6- 7. Click the Y es button so your ne w installation will[...]

EtherFast ® Cable/DSL Routers 27 Instant Broadband ™ Series 9. When y our PC has f inished restarting, click the Start button, and select Settings and Control P anel . Double-click Netw ork . Make sure that TCP/IP is installed on your PC, as sho wn on the screen in Figure 6-8. By default, W indows 98 has TCP/IP installed. If TCP/IP is not instal[...]

EtherFast ® Cable/DSL Routers 5. When the Digital Signature Not F ound screen appears, as sho wn in F igure 6- 13, W indo ws will ask you if y ou want to continue the installation. Click the Ye s button. 6. Click the Ne xt button from the screen sho wn in Figure 6-14 to allo w W indows to cop y the dri ver f iles to your PC. 29 Instant Broadband ?[...]

EtherFast ® Cable/DSL Routers 31 Instant Broadband ™ Series 30 1. W ith the Router pow ered up and connected to your PC’ s USB port using a USB cable, start up your PC in W indows Millennium. 2. W indows will notify y ou that new hardw are has been detected (see Figure 6-17). Insert the driver disk. Select A utomatic search f or a better driv [...]

EtherFast ® Cable/DSL Routers 33 Instant Broadband ™ Series 32 1. W ith the Router connected to your PC’ s USB por t using a USB cable, start up your PC in W indows XP . 2. W indows will notify y ou that new hardw are has been detected (shown in Figure 6-22). Select Install fr om a list or specif ic location (Adv anced) , and click the Next bu[...]

EtherFast ® Cable/DSL Routers Chapter 7: Configure the PCs The instructions in this chapter will help you conf igure each of your comput- ers to be able to communicate with the Router . T o do this, you need to conf igure your PC’ s netw ork settings to obtain an IP (or TCP/IP) address automatically (called DHCP). Computers use IP addresses to c[...]

EtherFast ® Cable/DSL Routers 3. Click the IP Addr ess tab and select Obtain an IP address automaticall y , as sho wn in Figure 7-2. 4. No w click the Gate wa y tab to ensure that the Installed Gatew a y f ield is left blank. Click the OK button. 5. Click the OK button again. Windo ws may ask y ou for the original W indows installation disk or add[...]

EtherFast ® Cable/DSL Routers 4. Select Internet Pr otocol (TCP/IP) , as sho wn in Figure 7-4, and click the Pr oper ties button. 5. Select Obtain an IP ad dr ess automatically , as sho wn in Figure 7-5. Once the new windo w appears, click the OK button. Click the OK button again to complete the PC conf iguration. 6. Restart your computer . Go to [...]

EtherFast ® Cable/DSL Routers 4. Select Internet Pr otocol (TCP/IP) , as sho wn in Figure 7-7, and click the Pr oper ties button. 5. Select Obtain an IP addr ess automaticall y , as shown in F igure 7-8. Once the new windo w appears, click the OK button. Click the OK button again (or the Close button if any settings w ere changed) to complete the [...]

EtherFast ® Cable/DSL Routers 43 Instant Broadband ™ Series 42 3. The Router conf iguration screen will appear with the Setup tab selected. Based on the setup instructions from your ISP , you ma y need to provide the follo wing infor mation. Host Name and Domain Name : These f ields allo w you to pro vide a host name and domain name for the Rout[...]

EtherFast ® Cable/DSL Routers 45 Instant Broadband ™ Series DHCP or Obtain an IP Addr ess A utomatically If your ISP sa ys that you are connecting through DHCP or a dynamic IP address from your ISP , perform these steps: A . Select Obtain an IP automatically as the W AN Connection T ype, as sho wn in Figure 8-4. B . Click the Appl y button to sa[...]

EtherFast ® Cable/DSL Routers Chapter 9: The Cable/DSL Router’ s W eb-based Utility F or your con venience, use the Router’ s w eb-based utility to administer it. This chapter will explain all of the functions in this utility . The utility can be accessed via Microsoft Internet Explorer or Netscape Navigator through use of a computer connected[...]

EtherFast ® Cable/DSL Routers • Device IP Addr ess and Subnet Mask The v alues for the Router’ s IP Address and Subnet Mask are sho wn here. The def ault values are 192.168.1.1 for the Device IP Address and 255.255.255.0 for the Subnet Mask. • W AN Connection T ype The Router supports f ive connection types: DHCP , PPP oE, Static IP , PPTP ,[...]

EtherFast ® Cable/DSL Routers 51 Instant Broadband ™ Series PPP oE Some DSL-based ISPs use PPP oE (P oint-to-P oint Protocol o ver Ethernet) to estab- lish Internet con- nections for end- users. If you are connected to the Internet through a DSL line, check with your ISP to see if they use PPP oE. If they do, you will ha ve to enable it, as sho [...]

EtherFast ® Cable/DSL Routers 53 Instant Broadband ™ Series 52 RAS Remote Access Service (RAS) (sho wn in Figure 9-8) is a service that applies to con- nections in Singapore only . F or users in Singapore, check with Singtel for information on RAS. User Name and P assword Enter the User Name and Pass word supplied b y Singtel. RAS Plan Select th[...]

EtherFast ® Cable/DSL Routers 55 Instant Broadband ™ Series 54 The Status tab, sho wn in F igure 9-10, displa ys the Router’ s status; it reflects the data and selections you’ ve entered using the Setup screen. All of the information provided on this screen is read-onl y . T o make changes, select the Setup tab . • Host Name This f ield sh[...]

EtherFast ® Cable/DSL Routers 57 Instant Broadband ™ Series 56 • DHCP Server DHCP is already enab led by factor y default. If you already ha ve a DHCP server on your netw ork, set the Router’ s DHCP option to Disab le . Click the A pply button. If y ou disable DHCP , remember to assign a static IP address to the Router . • Starting IP Addr[...]

EtherFast ® Cable/DSL Routers 59 Instant Broadband ™ Series The Log tab, sho wn in Figure 9-12, pro vides you with a lo g of all incoming and outgoing URLs or IP addresses for your Internet connection. T o access activity lo gs, select the Enab le option next to Access Log. This func- tion can be disabled b y clicking the Disable radio button. W[...]

EtherFast ® Cable/DSL Routers Under the Help tab, sho wn in F igure 9-14, y ou’ ll f ind links to all of the Utility’ s internal suppor t documentation, including the application that upg rades the Router’ s f irmware. New f ir mware versions are posted at www .linksys.com and can be do wnloaded for free. If the Router can access the Interne[...]

EtherFast ® Cable/DSL Routers 63 Instant Broadband ™ Series T o upgrade the Router’ s f ir mware: 1. Select the Help tab (see Figure 9-14). 2. Click Upgrade Firmwar e to displa y a new windo w (see Figure 9-15). 3. Click the Br o wse button to f ind the f irmware upgrade f ile that you do wn- loaded from the Linksys w ebsite and then extracted[...]

EtherFast ® Cable/DSL Routers 65 Instant Broadband ™ Series 64 Using MTU (Maximum T ransmission Unit) • This feature specif ies the largest pack et size permitted for network transmis- sion. Select Enab le and enter the value desired. It is recommended that you lea ve this value in the 1200 to 1500 range. F or most DSL users, it is recom- mend[...]

EtherFast ® Cable/DSL Routers 67 Instant Broadband ™ Series 66 • T elnet A ter minal emulation protocol commonly used on Internet and TCP/IP-based net- w orks. It allows a user at a terminal or computer to log onto a remote device and run a program. • SMTP (Simple Mail T ransfer Protocol) The stan- dard e-mail protocol on the Internet. It is[...]

EtherFast ® Cable/DSL Routers 69 Instant Broadband ™ Series 68 5. Enter the IP address of the ser ver that y ou w ant the Internet users to be able to access. T o f ind the IP address, go to “ Appendix F: Finding the MA C Address and IP Address for Y our Ethernet Adapter . ” 6. Check the Enab le box to enable the services you ha ve def ined.[...]

EtherFast ® Cable/DSL Routers 71 Instant Broadband ™ Series 70 If the Router is connected to more than one netw ork, it may be necessary to set up a static route betw een them. A static route is a pre-deter mined pathwa y that netw ork infor mation must trav el to reach a specif ic host or netw ork. From the Static Routing tab, as sho wn in F ig[...]

EtherFast ® Cable/DSL Routers 73 Instant Broadband ™ Series 72 The DMZ Hosting feature, sho wn in Figure 9-22, allo ws one local user to be exposed to the Internet for use of a special-pur pose ser vice such as Internet gaming and videoconferencing. Whereas P or t Range F orwarding can onl y forward a maximum of 10 ranges of ports, DMZ hosting f[...]

EtherFast ® Cable/DSL Routers 75 Instant Broadband ™ Series 74 Appendix A: Troubleshooting This appendix consists of tw o par ts: “Common Problems and Solutions” and “Frequentl y Asked Questions. ” Pro vided are possible solutions to problems regarding the installation and operation of the Router . If your situation is described here, th[...]

EtherFast ® Cable/DSL Routers F or Windo ws XP: The follo wing instr uctions assume you are running W indows XP with the default interface. If you are using the Classic interface (where the icons and menus look like pre vious W indo ws versions), please follo w the instructions for W indows 2000. A. Click Star t and Contr ol P anel . B . Click the[...]

EtherFast ® Cable/DSL Routers 79 Instant Broadband ™ Series 78 C. In the command prompt, type ping 192.168.1.1 and press the Enter key . • If you get a repl y , the computer is communicating with the Router . • If you do NO T get a reply , please check the cable, and make sure Obtain an IP addr ess automatically is selected in the TCP/IP set[...]

EtherFast ® Cable/DSL Routers Y our VPN ma y require por t 500/UDP packets to be passed to the computer that is connecting to the IPSec server . Refer to “Problem #7, I need to set up online game hosting or use other Internet applications” for details. Check the Linksys w ebsite for more infor mation at www .linksys.com . 6. I need to set up a[...]

EtherFast ® Cable/DSL Routers 8. I can’t get the Internet game , server , or application to work. If you are ha ving diff iculties getting an y Inter net game, server , or application to function properl y , consider exposing one PC to the Internet using DeMilitarized Zone (DMZ) hosting. This option is a v ailable w hen an applica- tion requires[...]

EtherFast ® Cable/DSL Routers 13. The fir mware upgrade failed, and/or the Diag LED is flashing. The upgrade could hav e f ailed for a number of reasons. F ollo w these steps to upgrade the f ir mware and/or make the Diag LED stop flashing: A. If the f irmware upgrade f ailed , use the TFTP pro gram (it was do wnloaded along with the f irmware). O[...]

EtherFast ® Cable/DSL Routers 17. The Diag LED stays lit continuously . • The Diag LED lights up when the de vice is f irst pow ered up. Meantime, the system will boot up itself and check for proper operation. After f in- ishing the checking procedure, the LED turns off to sho w that the system is w orking f ine. If the LED remains lit after thi[...]

EtherFast ® Cable/DSL Routers 89 Instant Broadband ™ Series 88 Does the Router support ICQ send file? Y es, with the follo wing f ix: click ICQ menu -> pr efer ence -> connections tab-> , and check I am behind a f ir e- wall or pr o xy . Then set the f irew all time-out to 80 seconds in the f irew all set- ting. The Internet user can th[...]

EtherFast ® Cable/DSL Routers 91 Instant Broadband ™ Series 90 Does the Router pass PPTP packets or actively route PPTP sessions? The Router allo ws PPTP packets to pass through. Is the Router cross-platform compatible? Any platform that supports Ether net and TCP/IP is compatible with the Router . How many ports can be simultaneously forwarded?[...]

EtherFast ® Cable/DSL Routers Bridge - A device that interconnects dif ferent netw orks together . Br oadband - A data-transmission scheme in which multiple signals share the bandwidth of a medium. This allo ws the transmission of voice, data, and video signals o ver a single medium. Cab le television uses broadband techniques to deliv er dozens o[...]

EtherFast ® Cable/DSL Routers DHCP supports static addresses for computers containing W eb servers that need a permanent IP address. DMZ - ( D e M ilitarized Z one) allo ws one IP address (or computer) to be exposed to the Internet. Some applications require multiple TCP/IP ports to be open. It is recommended that you set y our computer with a sta[...]

EtherFast ® Cable/DSL Routers Full Duplex - The ability of a device or line to transmit data simultaneousl y in both directions. Gatew a y – A device that interconnects netw orks with different, incompatib le communications protocols. Half Duplex - Data transmission that can occur in two directions o ver a single line, but only one direction at [...]

EtherFast ® Cable/DSL Routers NetBEUI ( NetB IOS E xtended U ser I nterface) - The transpor t la yer for NetBIOS. NetBIOS and NetBEUI w ere originally part of a single protocol suite that was later separated. NetBIOS sessions can be transported o ver NetBEUI, TCP/IP , and SPX/IPX protocols. NetBIOS - The nativ e networking protocol in DOS and W in[...]

EtherFast ® Cable/DSL Routers nostic tool or debugging feature, especially w hen fending off an attack. It enables the administrator to k eep close track of switch performance and alter it if necessary . P ort mir roring can be managed locally or remotel y . PPP oE ( P oint to P oint P rotocol o ver E thernet) - A method used mostl y b y DSL pro v[...]

EtherFast ® Cable/DSL Routers TCP/IP - T ransmission Control Protocol/Internet Protocol (TCP/IP) is the basic communication language or protocol of the Internet. It can also be used as a communications protocol in a pri v ate netw ork (either an intranet or an extranet). When you are set up with direct access to the Internet, your computer is pro [...]

EtherFast ® Cable/DSL Routers 105 Instant Broadband ™ Series URL ( U niform R esource L ocator) - The address that def ines the route to a f ile on the W eb or any other Internet facility . URLs are typed into the bro wser to access W eb pages, and URLs are embedded within the pages themselves to pro- vide the h yper text links to other pages. U[...]

EtherFast ® Cable/DSL Routers 107 Instant Broadband ™ Series 106 Step T wo: Pinging for a Web Address While the IP address returned abov e would w ork as your e-mail server address, it ma y not be permanent. IP addresses change all the time. W eb addresses, ho w- ev er , usually don’ t. Because of this, you’ re likely to ha ve fe wer prob le[...]

EtherFast ® Cable/DSL Routers 6. Find and double-click TCP/IP in the list to the right (see F igure D-2). 7. After a fe w seconds, the main Network windo w will appear . The TCP/IP Protocol should no w be listed , as sho wn in Figure D-3. 8. Click the OK button. W indows ma y ask for original W indo ws installation f iles. Supply them as needed , [...]

EtherFast ® Cable/DSL Routers 111 Instant Broadband ™ Series Appendix E: T wisted-Pair Cabling There are dif ferent grades, or “categories, ” of twisted-pair cabling. Category 5 is the most reliable and most highl y recommended. Category 3 is a good sec- ond choice. Straight-through cables are used for connecting computers to a hub . Crosso [...]

EtherFast ® Cable/DSL Routers 3. Write down the Adapter Address as sho wn on your computer screen (see Figure F-3). This is the MA C address for y our Ethernet adapter and will be sho wn as a series of numbers and letters. The MA C address/Adapter Address is what you will use for MA C Address Cloning or MA C Filtering. The example in F igure F-3 s[...]

EtherFast ® Cable/DSL Routers When entering the information using the Router’ s web-based utility , you will type the 12-digit MA C addr ess in this format, XXXXXXXXXXXX without the hyphens for MA C Filtering. See Figure F-6. When entering information for MAC Address Cloning, type the 12-digit MA C addr ess (see Figure F-7). 115 Instant Broadban[...]

EtherFast ® Cable/DSL Routers 3. From the Setup screen that appears, sho wn in Figure G-3, select Obtain an IP automat- ically from the W AN Connection T ype drop- do wn menu. Then, click the Security tab . 4. Select Enab le for A OL Parental Controls from the Security tab, sho wn in Figure G-4, and click the OK button on the screen that appears. [...]

EtherFast ® Cable/DSL Routers 119 Appendix H: 4-Port Router Specifications Model Number BEFSR41 ver . 2 Standards IEEE 802.3 (10BaseT), IEEE 802.3u (100BaseTX) Protocol CSMA/CD Ports LAN: Four 10/100 RJ-45 switched ports (and shared uplink) W AN: One 10Base-T Ether net RJ-45 port for the cable or DSL modem Speed LAN: 10/100Mbps W AN: 10Mbps Cablin[...]

EtherFast ® Cable/DSL Routers 121 Instant Broadband ™ Series 120 Appendix J: 3-Port Router Specifications Model Number BEFSRU31 Standards IEEE 802.3 (10BaseT), IEEE 802.3u (100BaseTX), USB Specification 1.0 & 1.1 Protocol CSMA/CD Ports LAN: Three 10/100 RJ-45 Switched ports (and shared uplink), One USB port W AN: One 10Base-T Ether net RJ-45[...]

EtherFast ® Cable/DSL Routers Appendix L: Contact Information F or help with the installation or operation of your Instant Broadband EtherF ast Cable/DSL Router, contact Linksys T echnical Suppor t at one of the phone numbers or Internet addresses below . Sales Information 800-546-5797 (1-800-LINKSYS) T echnical Suppor t 800-326-7114 RMA Issues 94[...]

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