Linksys BEFW11S4 manuale d’uso

Instant Wireless ® Series Wireless Access Point Router with 4-Port Switch Use this guide to install: BEFW11S4 User Guide[...]

COPYRIGHT & TRADEMARKS Specifications are subject to change without notice. Copyright © 2003 Linksys, All Rights Reserved. Instant Wireless, Linksys, and the Linksys logo ar e register ed trademarks of Linksys Group, Inc. Micr osoft, Windows, and the Windows logo are r egistered trade- marks of Microsoft Corporation. All other trademarks and b[...]

• Reorient or relocate the r eceiving antenna • Increase the separation between the equipment or devices • Connect the equipment to an outlet other than the receiver’ s • Consult a dealer or an experienced radio/TV technician for assistance FCC Caution: Any changes or modifications nor expressly appr oved by the party respon- sible for co[...]

Instant Wireless ® Series T able of Contents Chapter 1: Introduction 1 The Linksys W ireless Access P oint Router with 4-P ort Switch 1 F eatures 1 Minimum Requirements 2 An Introduction to LANs and W ANs 2 IP Addresses 3 The W ireless Access P oint Router’ s P orts 5 The W ireless Access P oint Router’ s LEDs 6 Chapter 2: Connecting the Route[...]

Chapter 1: Introduction Congratulations on your purchase of a W ireless Access P oint Router with 4- P ort Switch. The W ireless Access P oint Router with 4-P ort Switch pro vides the ideal solution for connecting your wireless netw ork to a high-speed broadband Internet connection and a 10/100 F ast Ethernet backbone. Conf igurable as a DHCP serve[...]

What’ s an IP Address? IP stands for Internet Protocol. Every device on an IP-based netw ork, includ- ing PCs, print servers, and routers, requires an IP address to identify its “loca- tion, ” or address, on the netw ork. This applies to both the W AN and LAN con- nections. There are tw o wa ys of assigning an IP address to your netw ork devi[...]

The LAN Indicators WLAN Act Gr een . This LED indicates wireless acti vity . WLAN Link Gr een . This LED indicates that the Router’ s wireless func- tions ha ve been enabled through the W eb-based utility . Powe r Green . This LED indicates that the Router’ s pow er is on. Link/Act Gr een . This LED ser ves tw o pur poses. When this LED is lit [...]

Chapter 2: Connecting the Router Before plugging ev er ything together , it’ s alw a ys a good idea to hav e ev er ything you’ ll need to get the Router up and r unning. Depending upon ho w you conf ig- ure the Router in Chapter 4: Conf iguring the Router , you ma y need some of the follo wing values from y our ISP: When connecting through a St[...]

F or W ireless Connections: In addition to accessing the Router through an Ethernet connection, a wireless connection can be used to access the Router . After po wering on the Router and connecting it to y our modem, enter the Router’ s IP Address in the Address f ield of your wireless PC’ s web-bro wser as follo ws: http://192.168.1.1 and pres[...]

2. Select the Conf iguration tab and highlight the TCP/IP line for the applicable Ethernet adapter (as shown in Figure 3-1). If the w ord TCP/IP appears by itself, select that line. (Note: If there is no TCP/IP line list- ed , refer to your Ethernet adapter’ s documentation to install TCP/IP now .) Then, click the Pr oper ties button. 3. Click th[...]

5. Click the OK button again. Windo ws may ask y ou for the original W indo ws installation disk or additional f iles. Supply them b y pointing to the cor rect f ile location, e.g., D:win98, D:win9x, c:windo wsoptionscabs, etc. (This assumes that “D” is the letter of your CD-R OM driv e). 6. If Windo ws asks you to restart your PC, click t[...]

The follo wing instr uctions assume you are running W indo ws XP’ s 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 instr uctions for W indo ws 2000. 1. Click the Start button, open the Control P anel . and click the Network and Internet Connections i[...]

3. If required by y our ISP , enter the Router’ s Host Name and Domain Name in the appropriate f ields on the Setup tab . (This is usually required b y cable ISPs.) 4. T o conf igure the Router for your wire- less netw ork, verify that the Setup tab’ s W ireless f ields (sho wn in Figure 4-3) are completed as follo ws: Enab le/Disable : Selecti[...]

PPP oE If your DSL pro vider sa ys that you are con- necting through PPP oE or if you normally enter a user name and pass- w ord to access the Internet, perfor m these steps (sho wn in Figure 4-5): a. Select PPP oE as the W AN Connection T ype. b . Enter the User Name . c. Enter the Pass word . d. Click the A pply button to sa ve the settings. RAS [...]

Chapter 5: Using the Router’ s W eb- Based Utility F or your con venience, an administrativ e utility has been programmed into the Router . This chapter will explain all of the functions in this utility . All router- based administrativ e tasks are perfor med through this w eb utility . The web util- ity can be accessed by an y PC on the netw ork[...]

• SSID : The SSID is a unique name for your wireless netw ork. It is case sensi- tiv e and must not exceed 32 characters. The default SSID is "linksys " but you should change this to a personal wireless netw ork name. All wireless points in your netw ork must use the same SSID . V erify that you are using the correct SSID and click the [...]

25 PPP oE Some DSL-based ISPs use PPP oE (P oint-to-P oint Protocol o ver Ethernet) to estab- lish communica- tions with an end- user . If you are using a DSL line, check with your ISP to see if they use PPP oE. If they do use PPP oE, select this from the drop- do wn menu (as sho wn in Figure 5- 5). If you do enab le PPP oE, remember to remo ve an [...]

28 • Router P asswor d F or g reater security , you should set a pass word for the Router . If you don’ t set the passw ord , all users on your netw ork will be able to access the Router using the default passw ord admin . W e recommend that you change y our passw ord often. • UPnP Services Uni versal Plug and Pla y (UPnP) allows systems, suc[...]

29 A DHCP (Dynamic Host Conf iguration Protocol) Server automatically assigns IP addresses to each computer on its netw ork. Unless you already ha ve one, you should set the Router up as a DHCP server . This is done on the DHCP tab, sho wn in Figure 5-9. • DHCP Serv er Click the Enable option to enab le the Router’ s DHCP ser v- er function If [...]

F or a permanent record of these logs, Lo gview er software must be used. This software is do wnloadable from the Linksys w ebsite at www .linksys.com . The Logvie w er sav es all incoming and outgoing activity as a permanent f ile on your PC’ s hard dri ve. Next to “Send Lo g to”, enter the f ixed IP address of the PC running the Logvie wer [...]

The Security tab, as sho wn in Figure 5-12, enab les conf iguration of the Router to pro vide parental controls. A OL P ar ental Contr ols Click on the radio button next to Enab le to use A OL ’ s “P arental Controls” feature. Enabling this will disab le all options under the Advanced tab e xcept MA C Address cloning, and will disable all Int[...]

2. Click the Br o wse b utton and f ind the f irmware upgrade f ile that you do wnloaded from the Linksys website. Doub le-click the upgrade f ile . This will place the f ile into the “File P ath:” f ield. 3. When the correct f ile is in the “File Path:” f ield , click the Upgrade but- ton and follo w the instr uctions there. This will comp[...]

T o f ilter users by netw ork por t number , enter a network port number or a range of netw ork por ts. Enter the por t numbers you w ant to f ilter in the por t numbers f ields. Users connected to the Router will no longer be able to access any port number listed there. • Editing MA C Filter Setting This feature f ilters the Ethernet adapter’ [...]

• Using Multicast P ass Through This feature allo ws for multiple transmissions to specif ic recipients at the same time. Select Enab le to suppor t the feature, or Disable to keep the Router from multicasting. • Using IPSec P ass Through This feature lets you use IPSec P ass Through. T o use this feature, click the Enab le button next to IPSec[...]

3. On the same line, select the protocol TCP or UDP , or select both protocols. 4. Enter the IP address of the server that y ou want the Internet users to be able to access. T o f ind the IP address, go to Appendix D: Finding the MA C Address and IP Address for Y our Ethernet Adapter . 5. Check the Enab le box to enable the services you ha ve def i[...]

• POP3 (P ost Off ice Protocol 3) A standard mail ser ver commonl y used on the Internet. It provides a message store that holds incoming e-mail until users log on and do wnload it. POP3 is a simple system with little selectivity . All pending messages and attachments are do wnloaded at the same time. POP3 uses the SMTP messaging protocol. • NN[...]

From the Dynamic Routing tab, sho wn in Figure 5-19, y ou can automatically adjust to ph ysical changes in the net- w ork’ s la yout. The Router , using the RIP protocol, determines the net- w ork packets’ route based on the few est number of hops betw een the source and the des- tination. The RIP protocol regularl y broadcasts routing infor ma[...]

2. Enter the follo wing data to create a new static route: Destination LAN IP . The Destination LAN IP is the address of the remote netw ork or host to which y ou want to assign a static route. Enter the IP address of the host for which y ou wish to create a static route here. If you are building a route to an entire netw ork, be sure that the host[...]

From the MA C Address Cloning tab, sho wn in Figure 5-22, you can assign the Router a MA C address, which is a 12- digit code assigned to a unique piece of hardware for identif i- cation, like a social security number . Some ISPs require that you re gister the MA C address of your netw ork card/adapter , which w as connected to your cab le or DSL m[...]

• F ragmentation Threshold. This value indicates ho w much of the Router’ s resources are dev oted to reco vering packet errors. The value should remain at its default setting of 2,346. If you ha ve decreased this v alue and experi- ence high packet error rates, you can increase it again, but it will likel y decrease o verall netw ork perfor ma[...]

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, the problem should be solv ed by appl ying the cor responding soluti[...]

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 instr uctions for W indows 2000. A. Click Star t and Contr ol Panel . B . Click the Netw ork and Inter net Connect[...]

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 settings for your Ethernet adapter . D . In the command prompt, type [...]

F . T ur n of f the computer , Router, and cab le/DSL modem. W ait 30 seconds, and then turn on the Router, cab le/DSL modem, and computer . Check the Status tab of the Router’ s w eb-based utility to see if you get an IP address. 4. I am not able to access the Router’ s web interface Setup page . A. Refer to “Problem #2, I w ant to test my I[...]

7. I need to set up online game hosting or use other Internet applications. If you w ant to pla y online games or use Internet applications, most will work without doing any port forw arding or DMZ hosting. There ma y be cases when you w ant to host an online game or Inter net application. This w ould require you to set up the Router to deli ver in[...]

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 ir mw are upgrade f ailed , use the TFTP program (it was do wnloaded along with the f irmware). Open the pdf that w as download[...]

17. The Diag LED stays lit continuously . • The Diag LED lights up when the de vice is f irst po w 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 this time, the device is not w or[...]

I’m an AOL member and I need more information. Additional infor mation can be found at A OL Keyw ord: Linksys Setup. What is the maximum number of IP addresses that the Router will support? The Router will support up to 253 IP addresses. Is IPSec Pass-Through supported by the Router? Y es, it is a built-in feature that the Router automatically en[...]

If all else fails in the installation, what can I do? Reset the Router by holding do wn the reset button until the Diag LED fully turns on and off. Reset y our cable or DSL modem b y po wering the unit of f and then on. Obtain and flash the latest f irmware release that is readil y av ailable on the Linksys w ebsite, www .linksys.com . How will I b[...]

What IEEE 802.11 features are supported? The product suppor ts the follo wing IEEE 802.11 functions: • CSMA/CA plus Acknowledge protocol • Multi-Channel Roaming • Automatic Rate Selection • R TS/CTS feature • Fragmentation • P o w er Management What is BSS ID? A specif ic Ad-hoc LAN is called a Basic Ser vice Set (BSS). Computers in a B[...]

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 display ed. 4. Write do wn the IP address r eturned b y the[...]

Appendix C: Configuring Wireless Security An acronym for Wired Equi valent Pri vacy , WEP is an encryption method used to protect your wireless data communications. WEP uses a combination of 64- bit or 128-bit keys to pro vide access control to your netw ork and encryption security for ev er y data transmission. T o decode a data transmission, each[...]

• WEP (64Bit or 128B) Select the lev el of encr yption from the drop-do wn box. 128-bit WEP encr yption is unique to Linksys and ma y conflict with other vendors’ WEP encr yption. The WEP Encr yption key is generated in one of tw o wa ys: 1. Y ou may create an encryption key b y using a P assphrase. a. Enter a Passphrase, a user-def ined passw [...]

2. In the “Control Panel” windo w , click the Networ k and Internet Connections icon, sho wn in Figure C-4. 3. Click the Netw ork Connections icon, sho wn in Figure C-5. 4. The “Netw ork Connections” windo w will appear , as shown in F igure C-6. Under LAN or High-Speed Internet you will see all Netw ork cards that are installed and operati[...]

6. When the “W ireless Netw ork Connection Properties” window appears, as in Figure C- 8, click the Wir eless Netw orks Ta b. 7. If the appropriate wire- less netw ork, specif ied by the Router’ s SSID , is displa yed in the “Prefer red netw orks” section, as sho wn in Figure C-9, doub le- click it and continue to the next step. Otherwise[...]

Appendix D: Finding the MAC Address and IP Address for Y our Ethernet Adapter This section describes ho w to f ind the MA C address for your Ethernet adapter to do either MA C Filtering or MA C Address Cloning for the Router and ISP . Y ou can also f ind the IP address of your computer’ s Ethernet adapter . The IP address is used for f iltering, [...]

2. In the command prompt, enter ipconf ig /all . Then press the Enter key . 3. Write do wn the Physical Address as sho wn on your computer screen; it is the MA C address for your Ethernet adapter . This will appear as a series of letters and numbers. The MA C address/Physical Address is what you will use for MA C Address Cloning or MA C Filtering. [...]

When entering the information using the Router’ s web-based utility , you will type the 12-digit MA C address in this format, XXXXXXXXXXXX without the hyphens for MA C Filtering. See Figure D-6. When entering information for MAC Address Cloning, type the 12-digit MA C addr ess (see Figure D-7). Figure D-6 Figure D-7 Instant Wireless ® Series 87 [...]

3. From the Setup screen that appears, sho wn in Figure E-3, select Obtain an IP automatically from the W AN Connection T ype drop-do wn menu. Then, click the Security tab . 4. Select Enable for A OL Parental Controls from the Security tab, sho wn in Figure E-4, and click the A pply button. Click the OK button on the screen that appears. Enabling t[...]

Bit - A binar y digit. The value - 0 or 1-used in the binary numbering system. Also, the smallest form of data. Boot - T o cause the computer to start executing instructions. P ersonal comput- ers contain built-in instructions in a ROM chip that are automaticall y ex ecuted on startup. These instr uctions search for the operating system, load it an[...]

cially useful in education and other en vironments where users change fre- quently . Using ver y short leases, DHCP can dynamically reconf igure netw orks in which there are more computers than there are a vailable IP addresses. DHCP supports static addresses for computers containing W eb ser vers that need a permanent IP address. DMZ ( D e m ilita[...]

Fir ew all - A f irew all is a set of related programs, located at a netw ork gatew ay server , that protects the resources of a network from users from other netw orks. (The term also implies the security policy that is used with the programs.) An enter prise with an intranet that allo ws its work ers access to the wider Inter net installs a f ire[...]

IP Addr ess - In the most widely installed le vel of the Internet Protocol (Internet Protocol) today , an IP address is a 32-binary digit number that identi- f ies each sender or receiv er of infor mation that is sent in packet across the Internet. When y ou request an HTML page or send e-mail, the Inter net Protocol part of TCP/IP includes your IP[...]

Plug-and-Pla y - The ability of a computer system to conf igure expansion boards and other devices automaticall y without requiring the user to turn off the system during installation. Po r t - A pathwa y into and out of the computer or a netw ork device such as a switch or router . F or example, the serial and parallel ports on a personal com- put[...]

If a receiv er is not tuned to the right frequency , a spread-spectr um signal looks like background noise. There are tw o main alternatives, Direct Sequence Spread Spectrum (DSSS) and Frequency Hopping Spread Spectrum (FHSS). SPI ( S tateful P ack et I nspection) - A f irew all technology that monitors the state of the transaction so that it can v[...]

UTP - Unshielded twisted pair is the most common kind of copper telephone wiring. T wisted pair is the ordinar y copper wire that connects home and many business computers to the telephone company . T o reduce crosstalk or electro- magnetic induction betw een pairs of wires, two insulated copper wires are twisted around each other . Each signal on [...]

105 Dimensions 7.31" x 6.16" x 2.44" (186mm x 154mm x 62mm) Unit W eight 18 oz. (0.51 kg.) P o w er Input External, 5V DC, 2.5A Certif ications FCC Class B , CE Mark Operating T emperature 0ºC to 40ºC (32ºF to 104ºF) Storage T emperature -20ºC to 70ºC (-4ºF to 158ºF) Operating Humidity 10% to 85%, Non-Condensing Storage Humid[...]

Appendix I: Contact Information F or help with the installation or operation of the W ireless Access Point Router with 4-P or t Switch, 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 Support 800-326-7114 RMA (Return Mer chandise A uthorization) [...]

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