Linksys BEFSRU31 manual

Instant Broadband™ Series EtherFast ® Cable/DSL Routers Use this User Guide to install the following Linksys product(s): BEFSR41 ver . 2 EtherFast Cable/DSL Router with 10/100 4-Port Switch BEFSRU31 EtherFast Cable/DSL Router with USB Port and 10/100 3-Port Switch BEFSR11 ver . 2 EtherFast 1-Port Cable/DSL Router User Guide[...]

COPYRIGHT & TRADEMARKS Copyright © 2002 Linksys, All Rights Reserved. Instant Broadband is a r egistered trademark of Linksys. Microsoft, Windows, and the Windows logo ar e register ed trade- marks of Microsoft Corporation. All other trademarks and brand names ar e the proper- ty of their respective pr oprietors. LIMITED W ARRANTY Linksys guar[...]

Instant Broadband ™ Series EtherFast ® Cable/DSL Routers Configuring Y our Network with the Cable/DSL Router 33 Conf iguring PCs to Connect to the Cable/DSL Router 33 Conf iguring the Cable/DSL Router 35 The Cable/DSL Router’ s Web-based Utility 38 Quick and Easy Router Administration 38 Setup 39 Pass word 41 Status 42 DHCP 43 Log 44 Security [...]

EtherFast ® Cable/DSL Routers Package Contents for the 4-Port Router (BEFSR41) • One • One EtherF ast Cable/DSL Router with 10/100 4-P or t Switch • One P o w er Adapter • One User Guide • One T ech Helper CD-ROM • One Quick Installation and Registration Card (not sho wn) System Requirements • One RJ-45 broadband Internet connection [...]

EtherFast ® Cable/DSL Routers 4 Instant Broadband ™ Series 3 Package Contents for the 1-Port Router (BEFSR11) Package Contents for the 1-Port Router (BEFSR11) • One EtherF ast 10/100 1-Port Cable/DSL Router • One P o w er Adapter • One User Guide • One T ech Helper CD-R OM • One Quick Installation and Registration Card (not sho wn) Sys[...]

EtherFast ® Cable/DSL Routers 6 Instant Broadband ™ Series 5 4-Port Router’ s Front Panel LEDs The LAN Indicators 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 continuousl y lit, the Router is successfully connected to a device through the corre[...]

EtherFast ® Cable/DSL Routers 8 Instant Broadband ™ Series 7 Getting to Know the 1-Por t EtherFast Cable/DSL Router The One-Port Router’ s Rear Panel The rear panel of the Router is where all of the Router’ s cabling connections are made, and where y ou can reset or conf igure the Router’ s LAN port. The One-P ort Router’ s Ports WA N Th[...]

EtherFast ® Cable/DSL Routers is continuousl y lit, the Router is successfully connected to a device through the LAN port. If the LED is flickering, the Router is activ el y sending or recei ving data through the LAN port. 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 succes[...]

This USB icon denotes the presence of a USB port or connector . Y our 3-P ort 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, the sla ve connector , resembles a square and con- nects to the USB port on the rear pan[...]

EtherFast ® Cable/DSL Routers USB The USB LED lights up when the USB port is successfully connected to a PC, USB hub, or other USB device. 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 se[...]

EtherFast ® Cable/DSL Routers 16 Instant Broadband ™ Series 15 Y our Router’ s f irew all (NA T) protects your netw ork of PCs with security so users on the public, Internet side cannot “see” your PCs. This is ho w your internal LAN, or netw ork, remains priv ate. Remember that your Router’ s ports connect to tw o sides: your 10/100 LAN [...]

EtherFast ® Cable/DSL Routers Connecting Y our Har dware T ogether and Booting Up 1. Before you be gin, make sure that all of y our hard war e is po wer ed off , including your Router , PCs, hubs, switches, and the cable or DSL modem. 2. A. If y ou ha v e the 4-P ort Cab le/DSL Router , connect one end of a netw ork cable to one of the LAN ports ([...]

3. Connect the networ k cab le from your cab le or DSL modem to the WA N port on your Router’ s rear panel. This is the onl y port that will w ork for your modem connection. 4. Connect the po wer adapter to the Powe r por t on the rear panel of the Router , and then plug the po w er adapter into a pow er outlet. • The Pow e r LED on the front p[...]

EtherFast ® Cable/DSL Routers 3. Select “Search for the best driv er for your de vice (Recommended). ” Click the Next button. 4. Select “Flopp y disk drives” and click the Ne xt button to star t the search for your dri ver . 22 Instant Broadband ™ Series Installing the BEFSRU31’s USB Por t Drivers Use the enclosed USB cable to connect [...]

EtherFast ® Cable/DSL Routers 7. Windo ws will notify you that it has completed cop ying the driv er f iles to your PC. Click the Finish button. 8. Windo ws will ask you if y ou want to restart your PC. Click the Y es button so your ne w installation will take ef fect. If it does not ask you, click the Start button, and select Shut Do wn . Then se[...]

EtherFast ® Cable/DSL Routers 26 Instant Broadband ™ Series 25 3. When W indo ws asks you where to search for dri ver f iles, select “Flopp y disk driv es” and click the Next button. 4. Windo ws will show a message sa ying that it has found the driv er f iles. Click the Next button. Installing the Windows 2000 Driver 1. W ith the Router conn[...]

EtherFast ® Cable/DSL Routers 7. W indo ws will displa y a message saying that it has f inished installing the driv er f iles on your PC. Click the Finish button to complete the installation. 8. Go to the Start button, and select the Settings option. Then select the Netw ork and Dial-up Connections option, and click the Local Area Connection icon.[...]

EtherFast ® Cable/DSL Routers 30 Instant Broadband ™ Series 29 Installing the Windows Millennium Driver 1. With the router connected to y our PC’ s USB port, star t up your PC in W indo ws Millennium, and insert your driv er disk. 2. Windo ws will notify you that new hardw are has been detected (sho wn abo ve). Select “ A utomatic sear ch fo[...]

EtherFast ® Cable/DSL Routers 32 Instant Broadband ™ Series 31 Installing the Windows XP Driver 1. With the router connected to y our PC’ s USB port, star t up your PC in W indo ws XP , and insert your dri ver disk. 2. Windo ws will notify you that new hardw are has been detected (sho wn abo ve). Select “ Install fr om a list or specif ic lo[...]

EtherFast ® Cable/DSL Routers 34 Instant Broadband ™ Series 33 4. Click the Pr operties button, and then choose the IP Address tab . Select Obtain an IP addr ess automatically . Click the OK button. Y ou ha ve no w completed the PC’ s client settings, so it can connect to the Router . 5. Click the OK button. Windo ws may ask for original W ind[...]

EtherFast ® Cable/DSL Routers 36 Instant Broadband ™ Series 35 3. The Cab le/DSL Router’ s Setup page will appear . 4. Conf igure the f ollo wing values : Host Name & Domain Name These f ields allow y ou to give the Router a Host and Domain name. Some ISPs require these names as identif ication. Y ou ma y hav e to check with y our ISP to s[...]

Instant Broadband ™ Series W AN IP Addr ess These values refer to the e xter nal netw ork (the Inter net) you connect to e very time you access y our Internet connection. Most broadband ISPs assign their clients to a different IP address each time they lo g on. If this is the case with your ISP , select Obtain an IP Ad dress A utomatically and go[...]

EtherFast ® Cable/DSL Routers 40 Instant Broadband ™ Series 39 • W AN IP Addr ess This is the IP address that your Router has, w hen seen from the external W AN, or the Internet. • Subnet Mask This is the Router’ s Subnet Mask, as seen by external users on the Internet (including your ISP). If you select Obtain an IP Addr ess A utomaticall[...]

Password It is str ongly recommended that you set a pass word for the Router . When y ou f irst po wer up the Router , there is no def ault Pass word setting assigned. If you lea ve the pass word f ield blank, all users on y our network will be ab le to access the Router simpl y b y entering the unit’ s IP address into their w eb bro ws- er’ s [...]

EtherFast ® Cable/DSL Routers 44 not be greater than 253. In order to deter mine the DHCP IP Address range, add the starting IP address (e.g. 100) to the number of DHCP users. By default as sho wn, add 100 to 50, and the range is 192.168.1.100 to 192.168.1.150. • DHCP Clients T able Click the DHCP Clients T ab le button to sho w the cur rent DHC[...]

EtherFast ® Cable/DSL Routers 46 Instant Broadband ™ Series 45 The Security tab enables conf iguration of your router to pro vide enhanced net- w ork security using ZoneAlarm Pro and PC-cillin (sold separately). The Router pro vides a built-in Inter net N A T f irew all. ZoneAlar m Pro enhances the Router’ s security capabilities for increased[...]

EtherFast ® Cable/DSL Routers T o upgrade the Router’ s f irmware: 1. Select the Help tab (sho wn on the previous page). 2. Click on Upgrade Firmw ar e to displa y a new windo w (sho wn belo w): 3. Enter your Router’ s administration pass w ord into the P asswor d Conf irm f ield. 4. Click the Bro wse button to f ind the f ir mware upgrade f i[...]

EtherFast ® Cable/DSL Routers Instant Broadband ™ Series 50 in the command prompt. T o set the MA C f ilter, click the Edit MA C Filter Setting button. When a second windo w appears, select the range in the drop- do wn box, and at the MA C number prompt, enter the 12-digit MA C address you w ant to f ilter . Click the Appl y button and the Conti[...]

EtherFast ® Cable/DSL Routers T o add a server using F orwarding: 1. Enter the por t number or range of por ts used by the server . On the same line, select the protocol UDP , TCP , or Both , and enter the LAN IP address of the server that you w ant the Inter net user(s) to access. 2. Conf igure as many entries as needed—the Router supports up t[...]

EtherFast ® Cable/DSL Routers 54 Instant Broadband ™ Series 53 If your Cab le/DSL Router is connected to more than one netw ork, you ma y ha ve to set up a static route betw een the two netw orks. A static route is a pre- determined pathwa y that netw ork data packets must tra vel to reach a specif ic host or netw ork. Click the Sho w Routing T [...]

EtherFast ® Cable/DSL Routers 56 Instant Broadband ™ Series 55 DMZ Hosting The DMZ Hosting feature allo ws one local user to be exposed to the Internet for use of a special-pur pose ser vice such as Inter net gaming and video-confer- encing. Whereas IP F orwarding can onl y forward a maximum of 10 ranges of ports, DMZ hosting forw ards all the p[...]

EtherFast ® Cable/DSL Routers 58 Instant Broadband ™ Series 57 Troubleshooting Common Problems and Solutions This section pro vides possible solutions to prob lems regarding the installation and operation of the Cable/DSL Router . If your situation is described here, the problem should be solv ed by appl ying the cor responding solution. If you [...]

EtherFast ® Cable/DSL Routers 60 Instant Broadband ™ Series 59 Frequently Asked Questions How do I remove my DUN prompt for PPPoE? F or Microsoft Inter net Explorer 5.x or abo ve, perform the follo wing steps: 1. Right-click on the Internet Explor er icon on the desktop, and click Pr operties . 2. Click the Conf iguration tab . 3. In “ Choose [...]

EtherFast ® Cable/DSL Routers 62 Instant Broadband ™ Series 61 The web page hangs; downloads are corrupt, or nothing but junk characters ar e being displayed on the screen. What do I need to do? F orce your NIC to 10Mbps or half duplex mode, and turn off the “ Auto-negotiate” feature of your NIC as a temporary measure. (Please look at the Ne[...]

EtherFast ® Cable/DSL Routers Glossar y 10BaseT - An Ethernet standard that uses twisted wire pairs. 100BaseTX - IEEE ph ysical la yer specif ication for 100 Mbps o ver tw o pairs of Category 5 UTP or STP wire. 1000B ASE-T - Provides half-duple x (CSMA/CD) and full-duplex 1000 Mbps Ethernet ser vice o ver Category 5 links as def ined by ANSI/TIA/E[...]

EtherFast ® Cable/DSL Routers CSMA/CD (Car rier Sense Multiple Access/Collision Detection) - The LAN access method used in Ethernet. When a de vice w ants to gain access to the net- w ork, it checks to see if the network is quiet (senses the carrier). If it is not, it waits a random amount of time before retrying. If the netw ork is quiet and tw o[...]

EtherFast ® Cable/DSL Routers Ethernet - IEEE standard netw ork protocol that specif ies ho w data is placed on and retriev ed from a common transmission medium. Has a transfer rate of 10 Mbps. F orms the underlying transport vehicle used by se veral upper -lev el protocols, including TCP/IP and XNS. F ast Ethernet - A 100 Mbps technology based on[...]

EtherFast ® Cable/DSL Routers IPCONFIG - A utility that pro vides for quer ying, def ining and managing IP addresses within a netw ork. A commonly used utility , under W indo ws NT and 2000, for conf iguring netw orks with static IP addresses. IPSec - IPSec (Internet Protocol Security) is a developing standard for securi- ty at the netw ork or pac[...]

EtherFast ® Cable/DSL Routers P ar titioning - T o divide a resource or application into smaller pieces. PCI (P eripheral Component Interconnect) - A peripheral bus commonly used in PCs, Macintoshes and w orkstations. It was designed primaril y by Intel and f irst appeared on PCs in late 1993. PCI pro vides a high-speed data path betw een the CPU [...]

EtherFast ® Cable/DSL Routers control programs such as the operating system and database management sys- tem (DBMS). Application software is an y program that processes data for the user . A common misconception is that software is data. It is not. Softw are tells the hardware ho w to process the data. SOHO (Small Off ice/Home Off ice) - Market se[...]

EtherFast ® Cable/DSL Routers VLAN (V ir tual LAN) - A logical association that allo ws users to communi- cate as if they w ere ph ysically connected to a single LAN , independent of the actual ph ysical conf iguration of the network. V ir tual Serv er - Multiple ser vers that appear as one server , or one system image, to the operating system or [...]

EtherFast ® Cable/DSL Routers 78 Instant Broadband ™ Series 77 Step One: Pinging an IP Address The f irst step to determining your ISP’ s web and e-mail server address is to ping its IP address. 1. P o wer on the computer and the ca ble or DSL modem , and restore the netw ork conf iguration set by y our ISP if you ha ve since changed it. 2. Cl[...]

EtherFast ® Cable/DSL Routers Instant Broadband ™ Series 79 Installing the TCP/IP Protocol F ollo w these instr uctions to install the TCP/IP protocol on one of your PCs only after a netw ork card has been successfully installed inside the PC. These instructions are for W indo ws 95, W indo ws 98, and W indo ws ME. F or TCP/IP setup under Windo [...]

EtherFast ® Cable/DSL Routers Instant Broadband ™ Series 81 T wisted-Pair Cabling There are different grades, or “categories, ” of twisted-pair cab ling. 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 ver cab les a[...]

EtherFast ® Cable/DSL Routers Instant Broadband ™ Series 83 4-Port Router Specifications Model Number BEFSR41 v2 Standards IEEE 802.3 (10BaseT), IEEE 802.3u (100BaseTX) Protocol CSMA/CD Po r t s LAN: F our 10/100 RJ-45 switched ports W AN: One 10Base-T Ethernet RJ-45 por t for the cable or DSL modem Speed LAN: 10/100Mbps W AN: 10Mbps Cabling T y[...]

EtherFast ® Cable/DSL Routers 86 Instant Broadband ™ Series 85 3-Port Router Specifications Model Number BEFSR U31 Standards IEEE 802.3 (10BaseT), IEEE 802.3u (100BaseTX) Protocol CSMA/CD Po r t s LAN: Three 10/100 RJ-45 Switched ports W AN: One 10Base-T Ethernet RJ-45 por t for the cable or DSL modem Speed LAN: 10/100Mbps W AN: 10Mbps Cabling T[...]

Instant Broadband ™ Series 87 © Copyright 2002 Linksys, All Rights Reser ved. www .linksys.com Customer Support F or help with the installation or operation of your Instant Broadband EtherF ast Cable/DSL Router , contact Linksys Customer Suppor t at one of the phone numbers or Internet addresses below . Sales Information 800-546-5797 (1-800-LINK[...]