Linksys BEFSR41W manuale d’uso

Instant Br oadband™ Series EtherFast ® Cable/DSL Wireless-Ready Router with 4-Por t Switch Use this Guide to install: BEFSR41W EtherFast Cable/DSL Wireless-Ready Router with 4-Port Switch User Guide[...]

COPYRIGHT & TRADEMARKS Copyright © 2002 Linksys, All Rights Reserved. Instant Broadband is a r egistered trade- mark of Linksys. Microsoft, Windows, and the Windows logo ar e registered trademarks of Microsoft Corporation. All other trademarks and brand names ar e the pr operty of their respective pr oprietors. LIMITED W ARRANTY Linksys guaran[...]

Log 30 Help 31 UPnP 32 Filters 33 P ort F orwarding 35 Dynamic Routing 39 Static Routing 40 DMZ Host 41 MA C Address Cloning 43 Appendix A: T roubleshooting 44 Common Problems and Solutions 45 Frequentl y Asked Questions 46 Appendix B: How to Obtain Y our ISP’ s E-mail & Web Addr esses 50 Appendix C: Installing the TCP/IP Protocol 53 Appendix[...]

Chapter 1: Introduction The Linksys Cable/DSL Wireless-Ready Router Congratulations on your purchase of an EtherF ast ® Cab le/DSL W ireless-Ready Router with 4-P ort Switch. The EtherF ast ® Cable/DSL W ireless-Ready Router with 4-P ort Switch provides the ideal solution for connecting y our netw ork to a high- speed broadband Internet connectio[...]

Chapter 2: Getting to Know the Cable/DSL Wireless-Ready Router The Cable/DSL Wireless-Ready Router’ s Rear Panel The back panel of the Router is where all of the Router’ s connections are made. WA N The W AN (Wide Area Network) P or t is where you will connect your cab le or DSL modem. P orts 1-4 These four LAN (Local Area Netw ork) ports are w[...]

The Cable/DSL Wireless-Ready Router’ s Front Panel LEDs Diag Red . The Diag LED illuminates w hen the Router goes through its self-diagnosis mode during boot-up and restart. It will turn off upon successful completion of the diagnosis. If this LED sta ys on for an abnor mally long period of time, refer to the T roubleshooting section. During f ir[...]

Chapter 3: Connecting the Cable/DSL Wireless-Ready Router to Y our Network Overview Unlike a simple hub or s witch, the setup of the Cable/DSL W ireless-Ready Router consists of more than simply plugging e verything together . Because the Router acts as a DHCP server , you will ha ve to set some v alues within the Router , and also conf igure your [...]

6. T o use the Reset button: While holding do wn the Reset button, unplug the po w er adapter from the Router . W ait three seconds while continuing to hold do wn the Reset button. Then plug the po w er adapter back into the Router . The Diag LED will flash twice. During the second flash, release the Reset button. This will restore all the defaults[...]

4. Click the Pr operties button, and then choose the IP Addr ess tab. Select Obtain an IP addr ess automatically . (See F igure 3-2.) Click on the Gatew a y tab and mak e sure that all f ields there are empty . Click OK . 5. The Netw ork Properties windo w will reappear . Click OK . All client settings are complete. W indo ws may ask for original W[...]

3. Conf igure the wireless functions of the web utility using the follo wing instructions. (Refer to Chapter 6 for more infor mation.) A. Access the w eb utility by opening y our w eb bro wser and typing http://192.168.1.1 in the bro wser’ s Address box. (This number is the default IP address of your Router .) Press Enter . (See F igure 4-2.) B .[...]

• Access Control Pro vides access to your netw ork for other PCs. Y ou’ll need to enter the MA C Address, then click on Add for an y PC that you w ant to add. Click on Appl y when f inished. • Channel Select the appropriate channel from the list provided to corre- spond with your netw ork settings, betw een 1 and 11. All points in your wirele[...]

2. A username and passw ord prompt will appear . Leav e the User Name box empty and type admin (the default passw ord) in the P assw ord bo x. Click OK . (See Figure 5-2.) 3. The Cab le/DSL W ireless-Ready Router’ s Setup page will appear . (See F igure 5-3.) Figure 5-2 Figure 5-3 N N o o t t e e : : The Setup page shown in this graphic may diffe[...]

1. Click on the button next to PPP oE . 2. Enter the User Name you use to lo g on to your Internet connection. 3. Enter your corresponding Pass wor d . RAS (Remote Access Service) is a s er vice used in Singapore only . If you are using a RAS connection, check with your ISP for the necessary setup infor- mation.T o enable RAS: 1. Click on the butto[...]

Setup p The basic Setup screen is the f irst screen you will see w hen you access the Utility . If you ha v e already installed and set up your router , you ha v e already seen this screen and ha ve already properl y conf igured all of the screen’ s v alues. • Host Name This entr y is necessar y for some ISPs. Ask your ISP . • Domain Name Thi[...]

1. Click on the button next to PPP oE . 2. Enter the User Name you use to lo g on to your Internet connection. 3. Enter your corresponding Pass wor d . RAS (Remote Access Service) is a s er vice used in Singapore only . If you are using a RAS connection, check with your ISP for the necessary setup information.T o enab le RAS: 1. Click on the button[...]

3. The follo wing screen will appear , verifying that you are enab ling WEP Encryption. Press the OK button to continue. (See Figure 6-4.) 4. The follo wing screen will appear , where y ou will choose your WEP Encryption settings. F or the Authentication T ype, select Open System (default setting).(See Figure 6-5.) 5. F or the Encryption, choose 64[...]

This tab displa ys the cur rent status of the Router; it reflects data and selections that you ha v e entered under the setup tab . 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 sho ws the name of your Router . This entr y is neces- sary for some ISPs. • Firmwar e[...]

A DHCP (Dynamic Host Conf iguration Protocol) Server automatically assigns IP addresses to each computer on your netw ork. Unless y ou already ha ve one, it is highly recommended that y our router be set up as a DHCP server . • DHCP Serv er Check the Enab le option to enable the DHCP server option of the router . If y ou already ha ve a DHCP serv[...]

Help Under the Help tab, you’ ll f ind links to all of the Router’ s internal suppor t doc- umentation, including the application that upgrades the Router’ s f ir mware. New f ir mware versions are posted at www .linksys.com and can be do wnloaded for free. If the Router can access the Internet already , there’ s no need to do wn- load a ne[...]

Filters b lock specif ic inter nal users from accessing the Internet. Y ou can set up a f ilter through an IP address or a netw ork port number . Filtered Private IP Range • T o set up a f ilter using IP addresses, enter the range of IP addresses you wish to f ilter in the IP address f ields. Users who ha ve f iltered IP addresses will not be abl[...]

For This screen displa ys preset application settings as w ell as options for cus- tomization of port ser vices for other applications. The Preset Applications are among the most widel y used Internet applications. They include the follo wing: • FTP (File T ransfer Protocol) A protocol used to transfer f iles ov er a TCP/IP netw ork (Internet, UN[...]

T o add a customized application in the UPnP F orwarding screen: 1. Enter the name of the application in the appropriate Customized Applications f ield. Continue with the f ields on the same line. 2. In the Ext. P ort f ield , enter the number of the external port used by the server . 3. Check Protocol TCP or Protocol UDP , depending on w hich prot[...]

W ith Dynamic Routing you can automaticall y adjust to ph ysical changes in the netw ork’ s lay out. Using RIP protocol, the router deter mines the route of the netw ork packets based on the fe w est number of hops between the source and the destination. The RIP protocol regularl y broadcasts routing information to other routers on the netw ork. [...]

Subnet Mask The Subnet Mask (also kno wn as the Netw ork Mask) deter- mines which portion of an IP address is the netw ork por tion, and which portion is the host por tion. In the example abo ve, the Netw ork Mask is 255.255.255.0. This determines (by using the v alues 255) that the f irst three numbers of a netw ork IP address identify this par ti[...]

MA C Address Cloning allo ws y ou to assign the Router a MA C address, which is a 12-digit code assigned to a unique piece of hardware for identif ication, like a Social Security number . Some ISPs require that y ou register the MA C address of your netw ork card/adapter , w hich was connected to y our cable or DSL modem during installation. Click [...]

3. I can’t browse through the Cable/DSL Wireless-Ready Router . • Check if both ends of the netw ork cable and po w er adapter are properl y connected. Check if the status LEDs on the front panel are functioning properly . • If using W indo ws 95 or W indo ws 98, check the TCP/IP setup on the client side. Run winipcfg by clicking on the Start[...]

Does the Cable/DSL Wireless-Ready Router support any operating system other than Windows 95, Windows 98, Windows 2000, Windows NT , or Windows XP? Y es, but Linksys does not at this time pro vide technical support for setup, conf iguration or troubleshooting of an y non-W indo ws operating systems. Does the Cable/DSL router support ICQ send file? Y[...]

If DMZ is used, does the exposed user share the public IP with the Router? No. 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 suppor ts Ethernet and TCP/IP is compatib le with the router . Will the Router allow me to use m[...]

3. At the DOS command prompt , type ping mail . (assuming that the loca- tion for which y ou’ re tr ying to f ind an IP address is conf igured as “mail”). Press Enter . Infor mation such as the follo wing data, taken from a ping of Microsoft Netw ork’ s e-mail ser ver , will be displa yed. 4. Write do wn the IP addr ess r eturned b y the pi[...]

Appendix C: Installing the T C P /IP Protocol F ollo w these instructions to install the TCP/IP Protocol on one of your PCs onl y after a netw ork card has been successfully installed inside the PC. These instructions are for W indo ws 95, 98 or Millennium. F or TCP/IP setup under Microsoft W indo ws NT , 2000, or XP , please refer to your Microsof[...]

Appendix D: T wisted-Pair Cabling There are different grades, or categories, of twisted-pair cab ling. Category 5 is the most reliable and is highl y recommended. Category 3 is a good second choice. Straight-through cables are used for connecting computers to a hub . Crosso ver cab les are used for connecting a hub to another hub (there is an excep[...]

Appendix E: Glossar y Ad-hoc Netw or k - An ad-hoc netw ork is a wireless netw ork or other small net- w ork in which some of the netw ork de vices are part of the network onl y for the duration of a communications session, while others sta y in close pro ximity to the rest of the netw ork. BSS (Basic Service Set) - A g roup of Instant W ireless TM[...]

IEEE - The Institute of Electrical and Electronics Engineers. The IEEE describes itself as “the w orld's largest technical professional society—promot- ing the dev elopment and application of electrotechnology and allied sciences for the benef it of humanity , the adv ancement of the profession, and the w ell- being of our members. ” The[...]

PrintServ er - A hardw are device that enab les a printer to be located anyw here in the netw ork. RJ-45 - A connector similar to a telephone connector that holds up to eight wires, used for connecting Ethernet devices. Roaming - The ability to use a wireless de vice and be able to mo v e from one access point’ s range to another without losing t[...]

Appendix F: Specifications Model Number BEFSR41W Standards PC Card 16-bit standard , IEEE 802.3 (10BaseT), IEEE 802.3u (100BaseTX), IEEE 802.11b (W ireless)* Pr otocol CSMA/CD Po r t s W AN: One 10Base-T RJ-45 P ort for Cable/DSL Modem LAN: F our 10/100 RJ-45 Switched P orts, One Shared Uplink P ort Speed W AN 10Mbps L A N 10/100Mbps (Half Duplex) [...]

Appendix G: Warrant y Information BE SURE T O HA VE Y OUR PROOF OF PURCHASE AND A B ARCODE FR OM THE PR ODUCT'S P A CKA GING ON HAND WHEN CALLING. RETURN REQUESTS CANNO T BE PR OCESSED WITHOUT PR OOF OF PURCHASE. IN NO EVENT SHALL LINKSYS’ LIABILITY EXCEED THE PRICE P AID FOR THE PR ODUCT FR OM DIRECT , INDIRECT , SPECIAL, INCIDEN- T AL, OR [...]

Appendix H: Contact Information F or help with the installation or operation of this product, contact Linksys Customer Support at one of the phone numbers or Inter net addresses below . Sales Information 800-546-5797 (LINKSYS) T ech Support 800-326-7114 RMA Issues 949-261-1288 Fa x 949-261-8868 Email support@linksys.com We b http://www .linksys.com[...]

© Copyright 2002 Linksys, All Rights Reserved. Printed in the USA. http://www .linksys.com[...]