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Linksys BEPSR31 Network Router User Manual

1. 26 FEtherFast Cable DSL Routers Installing the Windows 2000 Driver 1 With the Router powered up and connected to your PC s USB port using a USB cable start up your PC in Windows 2000 and have the Router s driver disk available Windows will notify you that the PC has found new hardware The Windows Hardware Wizard will then notify you that it is ready to start installing the driver files on your PC as shown in Figure 6 9 Click the Next button Weioome bp the Fours Hire Harder Winaind Pe ad BAH ee de amy brary Figure 6 9 2 Select Search for a suitable driver for my device Recommended as shown in Figure 6 10 and click the Next button TEE dee Die CEST Eur Lern ran ot mm mg Sa rahin hacia decent ce vom and i amaa mim E Tom aam d ri rarer be orai ator e Be oe gan Londo Litt Fous is dire pemr a oe prape y mao sar eee ee eee de cm M Ben prin rer Ur tn certes bios el em oe has hiha kig ha oe ee he ed eg che Geet easels ee oe ep ore U apip abe o bereits bn Es ces cea Fun haan eit i ia se ere Figure 6 10 27 Instant Broadband Series 3 Insert the driver disk into the floppy drive and when Windows asks you where to search for driver files select Floppy disk drives only as shown in Figure 6 11 Click the Next button Lors Deer Pen a ttm ia eurami eet b emm br dram Men Sabot by des is be de eng ones dans ay Linkage LEE Es The CE TR ee
2. 2 On the Configuration tab select the TCP IP line for the applicable Ethernet adapter as shown in Figure 7 1 Do not choose a TCP IP entry whose name mentions DUN PPPoE VPN or AOL If the word TCP IP appears by itself select that line If there is no TCP IP line listed refer to Appendix D Installing the TCP IP Protocol or your Ethernet adapter s user guide to install TCP IP now Click the Properties button A nx Canhgasion iderification Account Carr Lek LME MT Feet tant Adopter HE Ee 2a TOP AP Dablis Adapun Se p Biray H l Leger Cort ba crate Harab Dis ard Pri bharg Teacnpiion Le in ee nu eo EtherFast Cable DSL Routers 3 Click the IP Address tab and select Obtain an IP address automatically as shown in Figure 7 2 COTE ONE x Dern hecs O o e DAS Conigpantion Gstewap WHE Configurar M chers dr UP midesi be LG fee pie pert at elit ir mg bot perdue dl Pa lhe apace bekmu a amip abis T gps an OF aiia Figure 7 2 4 Now click the Gateway tab to ensure that the Installed Gateway field is left blank Click the OK button 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 windows options cabs etc if D is the letter of your CD ROM drive 6 Windows may ask you to restart your PC Click the Yes
3. Is IPSec Pass Through supported by the Router Yes it is a built in feature that the Router automatically enables Where is the Router installed on the network In a typical environment the Router is installed between the cable DSL modem and the LAN Plug the Router into the cable DSL modem s Ethernet port Does the Router support IPX or AppleTalk No TCP IP is the only protocol stan dard for the Internet and has become the global standard for communications IPX a NetWare communications protocol used only to route messages from one node to another and AppleTalk a communications protocol used on Apple and Macintosh networks can be used for LAN to LAN connections but those protocols cannot connect from WAN to LAN Does the WAN connection of the Router support 100 Mbps Ethernet Because of the speed limitations of broadband Internet connections the Router s current hardware design supports 10 Mbps Ethernet on its WAN port It does of course support 100 Mbps over the auto sensing Fast Ethernet 10 100 switch on the LAN side of the Router What is Network Address Translation and what is it used for Network Address Translation NAT translates multiple IP addresses on the private LAN to one public address that is sent out to the Internet This adds a level of security since the address of a PC connected to the private LAN is never transmitted on the Internet Furthermore NAT allows the Router to be used with low cost Internet accou
4. Leave the User Name field blank and enter admin in the Password field Then click the OK button Leerecel ba 192184 71 pr e a E de wim Fees Lite BE PSA LSE LSS Lideri OEP BPA RD LAON GALLES LEE raiik Lies Home Fi D Barcelon paerd m p peman bn Ca o Figure 9 2 Figure 9 3 In this section you ll find brief descriptions of each web page in the Utility and each page s key functions To apply any of the settings you change on a page click the Apply button To cancel any values you ve entered on any page click the Cancel button 48 The Setup screen is the first screen you see when you access the web based utility If you have already installed and set up the Router you have already seen this screen and properly configured all of the screen s values Host Name amp Domain Name These fields allow you to supply a host and domain name for the Router Some ISPs require these names as identifica tion You may have to check with your ISP to see if your broadband Internet service has been configured with a host and domain name In most cases leaving these fields blank will work e Firmware Version This entry shows the version and date of the firmware you are using Future versions of the Router s firmware will be posted and available for download on the Linksys website at www linksys com FEtherFast Cable DSL Routers e Device IP Address and Subnet Mask The values for the Router s IP Address
5. Dial Up Connections Right click the Local Area Connection that is associated with the Ethernet adapter you are using and select the Properties option In the Components checked are used by this connection box highlight Internet Protocol TCP IP and click the Properties button Select Use the following IP address option Enter a unique IP address that is not used by any other computer on the network connected to the Router You can only use an IP address in the ranges 192 168 1 2 to 192 168 1 99 and 192 168 1 151 to 192 168 1 254 Enter the Subnet Mask 255 255 255 0 Enter the Default Gateway 192 168 1 1 Router s default IP address Toward the bottom of the window select Use the following DNS server addresses and enter the Preferred DNS server and Alternative DNS server provided by your ISP Contact your ISP or go on its website to find the information Click the OK button in the Internet Protocol TCP IP Properties window and click the OK button in the Local Area Connection Properties window Restart the computer if asked For Windows NT 4 0 OR QT m Click Start Settings and Control Panel Double click the Network icon Click the Protocol tab and double click TCP IP Protocol When the window appears make sure you have selected the correct Adapter for your Ethernet adapter Select Specify an IP address and enter a unique IP address that is not used by any other computer on t
6. Series 7 Windows will notify you that it has finished installing the driver files on your PC as shown in Figure 6 15 Click the Finish button to complete the USB driver installation Complet Mas Found Has Harare Airan Likeri tefi Lakh Bomb rth LO koa Mca Tri ih eres haa ranei irg har ahea br arrr Te desp bi aed i i a E Figure 6 15 8 Go to the Start button and select the Settings option Then select the Network and Dial up Connections option and click the Local Area Connection icon Click the Properties button to display the screen shown in Figure 6 16 Highlight Internet Protocol TCP IP as shown in Figure 6 16 and click the Properties button Make sure that TCP IP is set to Obtain an IP address ans SRE Laval cr er Leiam Cf me Cao Masse pen LG Ed Ha H jnr ac d at a ae e p ri eas arg io banca ety w T kei Faia TEFA pt a ap umman com eae at O Pes arr wibe sby reni Figure 6 16 Your USB driver installation is now complete Go to Chapter 7 Configure the PCs 30 EtherFast Cable DSL Routers Installing the Windows Millennium Driver 1 With the Router powered up and connected to your PC s USB port using a USB cable start up your PC in Windows Millennium ad Landes LUS Foe adea han bear res haces cor on borrg Fa oes an Figure 6 17 2 Windows will notify you that new hardware has been detected see Figure 6 17 Insert the driver disk Select
7. and connectors in terms of the data rates that they can sustain CAT 3 cable has a maximum throughput of 16 Mbps and is usually utilized for 10BaseT networks CAT 5 ANSI EIA American National Standards Institute Electronic Industries Association Standard 568 is one of several standards that specify categories the singular is commonly referred to as CAT of twisted pair cabling systems wires junctions and connectors in terms of the data rates that they can sustain CAT 5 cable has a maximum throughput of 100 Mbps and is usually utilized for 100BaseTX networks CAT 5e The additional cabling performance parameters of return loss and far end crosstalk FEXT specified for 1000BASE T and not specified for 10BASE T and 100BASE TX are related to differences in the signaling imple mentation 10BASE T and 100BASE TX signaling is unidirectional signals are transmitted in one direction on a single wire pair In contrast Gigabit Ethernet is bi directional signals are transmitted simultaneously in both direc tions on the same wire pair that is both the transmit and receive pair occupy the same wire pair 93 94 Instant Broadband Series CPU Central Processing Unit The computing part of the computer Also called the processor it is made up of the control unit and ALU CSMA CD Carrier Sense Multiple Access Collision Detection The LAN access method used in Ethernet When a device wants to gain access to
8. shown in Figure 9 12 provides you with a log of all incoming and outgoing URLs or IP addresses for your Internet connection To access activity logs select the Enable option next to Access Log This func tion can be disabled by clicking the Disable radio button With logging enabled you can choose to view temporary logs or have a per manent record using the Logviewer software Temporary logs can be accessed from the Log screen by clicking either the Incoming Access Log or Outgoing Access Log button The Incoming Access Log gives you a log of all the incom ing Internet traffic while the Outgoing Access Log lists all the URLs and IP addresses of Internet sites that users on your network have accessed For a permanent record of these logs Logviewer software must be used This software is downloadable from the Linksys website www linksys com The Logviewer saves all incoming and outgoing activity as a permanent file on your PC s hard drive In the Send Log to field enter the fixed IP address of the PC running the Logviewer software The Router will now send updated logs to that PC To clear any values you ve entered on any page click Cancel and re enter information To apply any settings you ve altered on any page click the Apply button EtherFast Cable DSL Routers Security EI Lote SECURITY LT SL Le erty I bekni Rose lene Prt Decry wee Lave T ea mere Ghee ers 5 Conserves Basket bi check ksn inepaeiis
9. 1 Port EherFast Calle DSL Router The 1 Port Router s Rear Panel The rear panel of the Router is where all of the Router s cabling connections are made and where you can reset or configure the Router s LAN port as shown in Figure 3 1 Figure 3 1 WAN The WAN Wide Area Network port is where you connect your cable or DSL modem through an Ethernet cable Your modem connection will not work from any other port LAN The LAN Local Area Network port is where you connect the Router to a PC hub or switch If you have more than one PC connect an Ethernet hub or switch to the Router and then connect your PCs to that hub or switch Power The Power port is where you will connect the power adapter Buttons amp Switches The Reset Button Details on the Reset button are found in the Chapter 2 Getting to Know the 4 Port EtherFast Cable DSL Router 11 Instant Broadband Series The Crossover Switch When uplinking or connecting two pieces of network hardware together such as a hub and a switch a general rule of thumb is to plug one end of a network cable into a straight through port and the other end into a crossover port uplink port Standard ports are straight through ports and uplink ports are crossover ports Shraight Through Cube Crokacver Cale LAN Part oo Ayuarr LAN Fant on Rooker is fe Arpaia Port eo Sei or Mab Opie Pert on Sin or Aiad LAN Fen on Boater LAN Port ao Amiin ra da Vale
10. 3 Connect the Ethernet cable from your cable or DSL modem to the WAN port on the Router s rear panel This is the only port that will work for your modem connection 4 Connect the power adapter to the Power port on the rear panel of the Router and then plug the power adapter into a power outlet Note You should always plug the Router s power adapter into a surge protecting power strip e The Power LED on the front panel will light up green as soon as the power adapter is connected properly e The Diag LED will light up red for a few seconds when the Router goes through its self diagnostic test This LED will turn off when the self test is complete 5 Power on the cable or DSL modem 6 Press the Reset button on the Router s front panel with a paper clip or a pen cil Hold the button in until the Diag LED lights up and then turns off This will restore the Router s factory default settings Have you checked that the Link Act LEDs for all your LAN con nections and the Link LED for your WAN connection light up Tf all of your Link LEDs are not lighting up make sure that all your cables are securely plugged in and that all of your hardware is powered on properly Verify that the modem is plugged into the WAN port on the Router The Router s hardware installation is now complete EtherFast Cable DSL Routers Uplinking Connecting More Devices to the Router If the Router s LAN ports are all full and you
11. 32 4 where 24 53 32 4 is the IP address you just pinged Information such as the following data will be displayed Cs Sealing 24 53 3264 Pinging mail msnv3 occa home com 24 53 32 4 with 32 bytes of data Reply from 24 53 32 4 bytes 32 time lt l0ms TTL 127 Reply from 24 53 32 4 bytes 32 time lt l0ms TTL 127 Reply from 24 53 32 4 bytes 32 time lt 10ms TTL 127 Reply from 24 53 32 4 bytes 32 time lt 10ms TTL 127 Ping Sreristies wor 24 55 352 42 Packets Sent 4 Received 4 Lost 0 0 LOSS Approximate round trip times in milli seconds Minimum Oms Maximum Oms Average Oms Figure C 2 2 Write down the web address returned by the ping command In the example in Figure C 2 mail msnv3 occa home com is the web address This web address is the web address assigned to the IP address you just pinged While the IP address of mail could conceivably change it is likely that this web address will not 3 Replace your ISP s abbreviated server address with this extended web address in the corresponding Internet application web browser e mail application etc Once you have replaced the brief server address with the true server address the Router should have no problem accessing the Internet through that Internet application 108 Instant Broadband Series Appendix D Installing the TCP IP Protocol Follow these instructions to install the TCP IP protocol on one of your PCs only after a n
12. COTES ee ee ee CT F po ihe birg ae ee CAC ha a ce paler eg CC Deere set ore F ee gn dise RL T Baai ideu Led Sm Figure 6 11 4 Windows will notify you that it has found the driver files See Figure 6 12 Click the Next button Dese Piet Deb Arasia H 1 De mapp hepr reseed marc ky eve kiny irr pos hee ee E Tie miad kara a dha bor ba bairge a Leno iiia Fetes Waak mmi hamad brod Les ui date Te el de bre train banal Ga Po 2 smana 28 EtherFast Cable DSL Routers 5 When the Digital Signature Not Found screen appears as shown in Figure 6 13 Windows will ask you if you want to continue the installation Click the Yes button cit orabenc Moi Pe Tha Mere ater thal shame hon ee ee ee en beet Sead bance E agh eae Tha mdr pri ahead es adel dora rad cardan a a Theses bd indo Ether ont Coble Fio ath WER Pid Ton Sech W ata sant Le pero los Morel goalie mgr safkage wad a Winrar Lipide wie ote at a a by aea A one ia arralab Do yeu sand be continue tho imalalaton ue towne Figure 6 13 6 Click the Next button from the screen shown in Figure 6 14 to allow Windows to copy the driver files to your PC Dissi Filet Daioh Arisiki Car ha app hepr bee peachy bee deve bing ir pos eee ee Tis nic kara a dha bor Da beig drii Wa a amail Tt Lt Wei te Ta dal What thet Morales hinnad ilai Pl H statu BTS eo e Figure 6 14 29 Instant Broadband
13. Connects Your Cable or DSL Modem to Multiple Computers for Internet File and Printer Sharing e Set Up Your Computers and Router Easily Using Linksys Setup Wizard e Supports UPnP for Easy Network Configuration e Supports Enhanced Security Using NAT Firewall and ZoneAlarm Pro and PC cillin Software e Access Your Network Remotely over the Internet through Virtual Private Networking VPN Supports IPSec and PPTP Pass Through e Easily Configurable through a Web Browser Locally and over the Internet e Administer and Upgrade the Router Remotely over the Internet e Advanced Security Management Functions for Port Filtering MAC Address Filtering and DMZ Hosting e 3 or 4 Port 10 100 Mbps Built in Switch Speeds Up Your Gaming and Multimedia Experience BEFSRU31 amp BEFSR41 ver 2 only e Configurable as a DHCP Server on Your Network each sold separately Instant Broadband Series Package Contents for the 4 Port Router BEFSR41 aa iol Figure 1 1 One EtherFast Cable DSL Router with 4 Port Switch One Setup Wizard CD ROM with User Guide Included e One Power Adapter One Fast Start Guide e One Registration Card not shown Minimum Requirements e One Windows PC equipped with TCP IP Protocol e Internet Explorer 4 0 or Netscape Navigator 4 7 for web based configuration a CD ROM Drive and e an Ethernet Adapter with a UTP CAT 5 Network Cable e Cable or DSL Modem with Ethernet Connection and I
14. EtherFast Cable DSL Routers 13 The firmware upgrade failed and or the Diag LED is flashing The upgrade could have failed for a number of reasons Follow these steps to upgrade the firmware and or make the Diag LED stop flashing A If the firmware upgrade failed use the TFTP program it was downloaded along with the firmware Open the pdf that was downloaded along with the firmware and TFTP program and follow the pdf s instructions B Set a static IP address on the PC refer to Problem 1 I need to set a stat ic IP address Use the following IP address settings for the computer you are using IP Address 192 168 1 50 Subnet Mask 255 255 255 0 Gateway 192 168 1 1 C Perform the upgrade using the TFTP program or the Router s web based utility through its Help tab 14 My DSL service s PPPOE is always disconnecting PPPoE is not actually a dedicated or always on connection The DSL ISP can disconnect the service after a period of inactivity just like a normal phone dial up connection to the Internet There is a setup option to keep alive the con nection This may not always work so you may need to re establish connec tion periodically A To connect to the Router go to the web browser and enter http 192 168 1 1 or the IP address of the Router B Enter the password if asked The default password is admin C In the Setup tab select the option Keep Alive and set the Redial Period option at 20 s
15. Hian po mu LT LEE The freee outing meta miren year Eni to drani ani ts Bal CFE Mi CRUE coll a cs Te piy A yia Ei er ie arab fn Anew DTHARIC ROUTING Woking tote A ania Leuee hearg eo ass PA ie Figure 9 20 With Dynamic Routing Figure 9 20 you can enable the Router to automati cally adjust to physical changes in the network s layout The Router using the RIP protocol determines the network packets route based on the fewest num ber of hops between the source and the destination The RIP protocol regular ly broadcasts routing information to other routers on the network To set up Dynamic Routing 1 Choose the correct Working Mode Gateway Mode should be used if the Router is hosting your network s connection to the Internet Router Mode should be selected if the Router exists on a network with other routers In Router Mode any computer connected to the Router will not be able to connect to the Internet unless you have another router function as the Gateway 2 Choose a Dynamic Routing path protocol for either transmission TX or reception RX of network data When finished making your changes on this tab click the Apply button to save these changes or click the Cancel button to undo your changes For further help on this tab click the Help button Click the Show Routing Table button to open a chart displaying how data is routed through your LAN 70 EtherFast Cable DSL Routers Static R
16. Keep this information in case you want to use it at a later time C Click the DMZ Host tab D Enter the Ethernet adapter s IP address of the computer you want exposed to the Internet This will bypass the NAT firewall for that computer Please refer to Appendix F Finding the MAC Address and IP Address for Your Ethernet Adapter for details on getting an IP address Once completed with the configuration click the Apply button 9 forgot my password or the password prompt always appears when saving set tings 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 for a password when sav ing settings then perform the following steps A Access the Router s web interface by going to http 192 168 1 1 or the IP address of the Router Enter the default password admin and click the Password tab B Enter a different password in the Router Password field and enter the same password in the second field to confirm the password C Click the Apply button 83 84 Instant Broadband Series 10 ama PPPOE user and need to remove the proxy settings or the dial up pop up window If you have proxy settings you need to disable these on your computer Because the Router is the gateway for the Internet connection the computer does not need any proxy settings to gain access Please follow these directions to verify that you d
17. Linksys website and then extracted 4 Double click the firmware file you downloaded and extracted Click the Upgrade button and follow the instructions there 62 The following instructions are for advanced users or users whose setup needs require special configuration When you click the Advanced tab you will be able to set up these features There are six additional tabs available e Filters Filters block specific internal users from Internet access and enable Virtual Private Network VPN sessions e Forwarding Sets up public services on your network Dynamic Routing Sets up the Router so it will automatically adjust to phys ical changes in the network s layout e Static Routing Sets up static routes needed when network information must travel to a specific host or network DMZ Host Allows one local user to be exposed to the Internet for use of spe cial purpose services such as online gaming or videoconferencing MAC Address Cloning Allows you to clone your Ethernet adapter s MAC address onto the Router FEtherFast Cable DSL Routers IP Filtering IP filters block specific inter nal users from accessing the Internet and enable Virtual Private Network VPN ses sions You can set up filters by using IP addresses or network port numbers or a range of ports Setting Up Filters e To set up a filter using IP addresses enter the range of IP addresses you wish to fil ter in the IP address
18. T pakiti DC Cie Ae Mine Less F pirs Prem b irua pirt biah i le le strass 1 ie Leeds pais depts Steere Figure 9 13 The Security tab shown in Figure 9 13 enables configuration of the Router to provide enhanced network security using ZoneAlarm Pro and PC cillin each sold separately The Router provides a built in Internet NAT firewall ZoneAlarm Pro enhances the Router s security capabilities for increased pro tection against hackers and other threats from the Internet PC cillin protects against viruses ZoneAlarm Pro and PC cillin work independently of each other For more information on ZoneAlarm Pro PC cillin and DSL or cable network security please click the on screen link to the Internet Security Center Software Download Click this button to purchase and download ZoneAlarm Pro and or PC cillin at the Internet Security Center Print the summary page which contains the license key needed for installation or write down the license key if you are unable to print the page You will also be e mailed a confirmation invoice with the key included When adding security enhancements to your other networked computers you can either copy the downloaded files to the other PCs or re download the software on each individual PC without incurring any more costs ZoneAlarm Pro Settings If you have downloaded ZoneAlarm Pro complete this section License Key Enter the License Key for ZoneAlarm Pro The License Key wil
19. Tim anai ain o mi are bet Ab hs E ree Poe mt ome e a latins LE a e t meri i em Conkguaien identification acc ani UEA ee ee ao _ r AP PE beia LAIT Pe AE Thk larg perean ajae pe iade lie pes eel Gere o Veal ere c J aii EEE Leds LME DT Vani C sar f e Parone Poinzi se L Happi m Figure 6 23 CE me _ num Prina Hal Logan 3 Insert the driver disk into the floppy drive and select Search for the best driver in these locations Then select Include this location in the search and enter A in the location field if A is the letter of your floppy drive See Figure 6 24 All other options must be unchecked assuming you are running Windows XP with the default interface Click the Next button a aeae Tuna Dri ka Peco Heita kal File are Faire Bheag sccrgeon FCPAF o the tool pou ot LE Comme ia ui nioran rel ee ces pep semah ee ee Lame mme oe Bad C apr ous de baa ce a re aara aa eut jasa ra aqua om diaa ec abe prisiar ra ue pol nt Elie eg Lei dome Tagal ml Es cie En ieee Figure 6 21 a don ae 7 mrm Your USB driver installation is now complete Re Go to Chapter 7 Configure the PCs Chemin cd ee eos a drum mures aika La Lors Figure 6 24 33 Instant Broadband Series 4 When the Hardware Installation screen appears shown in Figure 6 25 click Continue Anyway Kee cess ten ri aN Tha ofera a ve ere fice ara Fence Er
20. and Subnet Mask are shown here The default values are 192 168 1 1 for the Device IP Address and 255 255 255 0 for the Subnet Mask WAN Connection Type The Router supports five connection types DHCP PPPoE Static IP PPTP and RAS Each Setup screen and available features will differ depending on what kind of connection type you select Note You can test and see if the settings are correct by successfully connecting to the Internet DHCP LT Lee 16 af of tee router s beak pebap Amc kipsi yee el be able b coe tha router s celal irib out mamng amy SETUP chang e If pii ut Pos dure cetera aes phh pii Thi wai pe Hew Haim Pamala Harme Tirma Wena LAH iF Arhi rer LL Pca fice es fi Fr Mere P Aaii EEE Li Shen Hack WAN Comparten Type Cees cee LUI Etain esr maior ca z Select Pe hiema coreden type sma h i Las dock _ ance Figure 9 4 By default the Router s WAN Connection Type is set to Obtain an IP auto matically as shown in Figure 9 4 and it should be used only if your ISP supports DHCP To apply any of the settings you change on a page click the Apply button To cancel any values you ve entered on any page click the Cancel button Continue to the Password section 49 Instant Broadband Series PPPoE Some DSL based ISPs use PPPoE Point to Point Protocol over Ethernet to estab lish Internet con nections for end users If you are rte connected to the um S omer Inter
21. and components of a computer from the program you put in it to make it do things The program came to be known as the software Hub The device that serves as the central location for attaching wires from workstations Can be passive where there is no amplification of the signals or active where the hubs are used like repeaters to provide an extension of the cable that connects to a workstation IEEE The Institute of Electrical and Electronics Engineers The IEEE describes itself as the world s largest technical professional society promot ing the development and application of electrotechnology and allied sciences for the benefit of humanity the advancement of the profession and the well being of our members The IEEE fosters the development of standards that often become national and international standards The organization publishes a number of journals has many local chapters and has several large societies in special areas such as the IEEE Computer Society IP Address In the most widely installed level of the Internet Protocol Internet Protocol today an IP address is a 32 binary digit number that identifies each sender or receiver of information that is sent in packets across the Internet When you request an HTML page or send e mail the Internet Protocol part of TCP IP includes your IP address in the message actually in each of the pack ets if more than one is required and sends it to the IP address that is ob
22. computer and if computers move to another location in another part of the network a new IP address must be entered DHCP lets a network administrator supervise and distribute IP addresses from a central point and automatically sends a new IP address when a computer is plugged into a different place in the network DHCP uses the concept of a lease or amount of time that a given IP address will be valid for a computer The lease time can vary depending on how long a user is likely to require the Internet connection at a particular location It s espe cially useful in education and other environments where users change frequent ly Using very short leases DHCP can dynamically reconfigure networks in which there are more computers than there are available IP addresses EtherFast Cable DSL Routers DHCP supports static addresses for computers containing Web servers that need a permanent IP address DMZ DeMilitarized Zone allows 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 your computer with a static IP address if you want to use DMZ Hosting DNS The Domain Name System DNS is the way that Internet domain names are located and translated into Internet Protocol IP addresses A domain name is a meaningful and easy to remember handle for an Internet address Domain A subnetwork comprised of a group of clients and ser
23. fields Users who have filtered IP addresses will not be able to access the Internet at all If you only want to filter one IP address instead of a range of IP addresses enter the same value into both fields For instance if you wish to filter the PC with the IP address of 192 168 1 5 enter 5 into both fields on one line 192 168 1 5 192 168 1 5 Click the Apply button when you re done e To filter users by network port number enter a network port number or a range of network ports Enter the port numbers you want to filter in the port numbers fields Users connected to the Router will no longer be able to access any port number listed there Figure 9 16 Editing MAC Filter Setting e This feature filters the Ethernet adapter s specific MAC address from going out to the Internet e To check your Ethernet adapter s MAC address run winipcfg or ipconfig in the command prompt depending on which Windows operating system you are using To set the MAC filter click the Edit MAC Filter Setting button When a second window appears select the range in the drop down box and at the MAC number prompt enter the 12 digit MAC address you want to fil ter Click the Apply button before closing the window For information on obtaining a MAC address go to Appendix F Finding the MAC Address and IP Address for Your Ethernet Adapter 63 64 Instant Broadband Series Blocking WAN Requests e By enabling the Block WAN Request
24. in the web browser s Address field Address http 192 168 1 1 f ttp a bis as shown in Figure 8 1 and Figure 8 1 press the Enter key 2 An Enter Network Password window shown in Figure 8 2 will appear Windows XP users will see a Connect to 192 168 1 1 window shown in Figure 8 3 Leave the User Name field empty and enter admin in lower case letters in the Password field admin is the default password Then click the OK button Leereee fo 1171 bEL1 1 vice hetero Fevewerd a te ye Pikk bza Za aH rae ad cara Tir Wiii Paia Lira FALET La SL Andere DEF ERA pA RHLLET LEH riii Lil Ue Hoe p ER mm D jrr Ben pmen m me paeran id Ca om Figure 8 2 EtherFast Cable DSL Routers 3 The Router configuration screen will appear with the Setup tab selected Based on the setup instructions from your ISP you may need to provide the following information Host Name and Domain Name These fields allow you to provide a host name and domain name for the Router These fields are usually left blank If requested by your ISP usually cable ISPs complete these two fields Device IP Address and Subnet Mask The values for the Router s IP Address and Subnet Mask are shown on the Setup screen The default value is 192 168 1 1 for the IP Address and 255 255 255 0 for the Subnet Mask Leave these settings alone 4 The Router supports five connection types DHCP obtain an IP automati cally PPPoE Stat
25. pou co rakd Eee dirii pou pra that Meds Cancel Figure 6 2 4 Insert the driver disk into the floppy drive and select Floppy disk drives only as shown in Figure 6 3 Click the Next button to start the search for your driver Mindosy mach bor mana deren nite dew daissa onyma had dre maja ry o ine Lolo ole bed kgs CE Plss ri propa tes uih F Boppy cick dei M PIH ave F Hermal irasa Upas l Space ajesi pii ifa Hasi ai Figure 6 3 23 Instant Broadband Series 5 The Hardware Wizard will search the floppy and a new window will appear shown in Figure 6 4 notifying you that Windows is now ready to install the best driver for this device Click the Next button to continue LT D ep ear ioe Pai hia Ciel an Cab OSL Maia i SR oe 1 atc tater et omy ends cried das bac dtn ice Fin vibe Clap Fach ke ole herve co coh bape eee onan oF cher jarma Figure 6 4 6 Windows will begin copying the files to your PC as shown in Figure 6 5 Do not click the Cancel button or press the Esc key during this process If Windows asks for your Windows operating system files before copying direct your PC to the location of those files e g c windows options cabs or D Win98 if D is the letter of your CD ROM drive Source Windows 98 Second Edition CD ROM Destination C AWINDOWS4SYS TEMSIPHLPAPI DLL Figure 6 5 24 EtherFast Cable DSL Routers 7 Windows will notify you that i
26. still have PCs and or devices to connect connect a hub or a switch to the Router using an Ethernet cable To do so use the Router s Uplink port to connect to a standard port on a hub or switch This leaves you with new open ports on the hub or switch to which you can add more PCs and or network devices If you have a PC device connected to the port right next to the Uplink port on the 3 and 4 Port Routers disconnect that PC device and plug it into an open port on the new hub or switch Since the Uplink port shares internal wiring with the port right next to it you can only use one of these two ports at a time these ports are called shared ports If your new hub or switch also has an Uplink port it too can be uplinked when you run out of ports and so on See your nearest Linksys retailer or visit www linksys com for complete prod uct lines of 10 100 Mbps hubs and switches If you have a 3 Port Router with USB and you are using its USB port then proceed to the next page Chapter 6 Installing the BEFSRU31 s USB Port Drivers Otherwise go to Chapter 7 Configure the PCs 21 Instant Broadband Series Chapter 6 Installing the BEFSRUBT1 s USB Port Drivers Use the enclosed USB cable to connect your PC to the Router the Type A end connects to your PC s USB port while the Type B end connects to the Router s USB port Now that all of the Router s hardware is connected together you must enable the PC
27. than 253 In order to determine the DHCP IP Address range add the starting IP address e g 100 to the number of DHCP users By default as shown in Figure 9 11 add 100 to 50 and the range is 192 168 1 100 to 192 168 1 149 Client Lease Time The Client Lease Time is the amount of time a network user will be allowed connection to the Router with their current dynamic IP address Enter the amount of time in minutes that the user will be leased this dynamic IP address e DNS The Domain Name System DNS is how the Internet translates domain or website names into Internet addresses or URLs Your ISP will provide you with at least one DNS Server IP Address If you wish to use another type that IP Address in one of these fields You can type up to three DNS Server IP Addresses here The Router will use these for quicker access to functioning DNS servers e WINS The Windows Internet Naming Service WINS manages each PC s interaction with the Internet If you use a WINS server enter that server s IP Address here Otherwise left this blank DHCP Clients Table Click the DHCP Clients Table button to show the current DHCP Client data This data is stored in temporary memory and changes periodically To apply any of the settings you change on a page click the Apply button To cancel any values you ve entered on any page click the Cancel button 58 Soom ie Pa nos T en T LT LEE LEA Figure 9 12 The Log tab
28. that will connect to the Router through its USB port Since your USB connection acts as an Ethernet adapter for your PC there s no need for you to install an Ethernet adapter on that PC Just follow the direc tions below to enable your PC s USB connection to the Router e If you are running Windows 98 continue to the section below on this page e For other Windows operating systems please refer to the appropriate section in this chapter as listed in the Table of Contents Note After you finish this configuration make sure that TCP IP is installed on your PC s For instructions on installing TCP IP see Appendix D Installing the TCP IP Protocol You can also connect the Router s USB port to other USB devices besides USB ready PCs such as a USB hub using a USB cable Installing the Windows 98 Driver 1 With the Router powered up and connected to your PC s USB port using a USB cable start up your PC in Windows 98 and have the Router s driver disk available 2 Windows will notify you that it has detected new hardware as shown in Figure 6 1 Click the Next button Tha sd aiaa hon ras chu bar Dri A Ae Adea PEU eee pag e Ge miT d hedre dat an m5 Figure 6 1 22 EtherFast Cable DSL Routers 3 Select Search for the best driver for your device Recommended shown in Figure 6 2 Click the Next button Whai pa ee Wind LR de jk anol RER 7 Dianiaya ad gd al ihe ch in a apani beat de
29. to radio or television reception which is found by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures e Reorient or relocate the receiving 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 UG BEFSR11 41 031 AOL 091402NC KL Instant Broadband Series Table of Contents Chapter 1 Introduction The Linksys EtherFast Cable DSL Router Features Package Contents for the 4 Port Router BEFSR41 Minimum Requirements Package Contents for the 1 Port Router BEFSR11 Minimum Requirements Package Contents for the 3 Port Router with USB BEFSRU31 Minimum Requirements An Introduction to LANs and WANs IP Addresses Network Setup Overview Chapter 2 Getting to Know the 4 Port EtherFast Cable DSL Router The 4 Port Router s Rear Panel The 4 Port Router s Front Panel LEDs Chapter 3 Getting to Know the 1 Port EtherFast Cable DSL Router The 1 Port Router s Rear Panel The 1 Port Router s Front Panel LEDs Chapter 4 Getting to Know the 3 Port EtherFast Cable DSL Router The 3 Port Router s Rear Panel USB Compatibility The 3 Port Router s Front Panel LEDs Chapter 5 Connect the Router Overview Connecting Your Hardware Together and Booting Up Uplinking Connecting More Devices to the Ro
30. together In this instance the Router connects your Local Area Network LAN or the group of PCs in your home or office to the Wide Area Network WAN that is the Internet The Router processes and regulates the data that travels between these two networks Think of the Router as a network device with two sides the first side is made up of your private Local Area Network LAN of PCs The other public side is the Internet or the Wide Area Network WAN outside of your home or office 4 EtherFast Cable DSL Routers The Router s firewall NAT protects your network of PCs so users on the pub lic Internet side cannot see your PCs This is how your LAN or network remains private The Router protects your network by inspecting the first pack et coming in through the WAN port before delivery to the final destination on the LAN port The Router inspects Internet port services like the web server ftp server or other Internet applications and if allowed it will forward the packet to the appropriate PC on the LAN side Remember that the Router s ports connect to two sides your 10 100 LAN port s and the Internet WAN port The LAN port s transmit data at 10 Mbps or 100 Mbps whereas the broadband port or WAN port transmits data at 10 Mbps IP Addresses What s an IP Address IP stands for Internet Protocol Every device on an IP based network includ ing PCs print servers and routers requires an IP address t
31. 110 POP3 incoming are used for the mail server You can get more information by viewing the documentation provided with the server you installed Follow these steps to set up port forwarding through the Router s web based utility We will be setting up web ftp and mail servers A Access the Router s web based utility by going to http 192 168 1 1 or the IP address of the Router Go to the Advanced gt Forwarding tab B Enter any name you want to use for the Customized Application C Enter the Ext Port range of the service you are using For example if you have a web server you would enter the range 80 to 80 D Check the protocol you will be using TCP and or UDP 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 Ethernet adapter IP address is 192 168 1 100 you would enter 100 in the field provided Check Appendix F Finding the MAC Address and IP Address for Your Ethernet Adapter for details on getting an IP address F Check the Enable option for the port services you want to use Consider the example below Customized Ext Port TCP UDP IP Address Enable Application llla Web server 80 to 80 X X 192 168 1 100 X FTP server 21 to21 X 192 168 1 101 X SMTP outgoing 25 to 25 X X 192 168 1 102 X POP3 incoming 110 to 110 X X 192 168 1 102 X When you have completed the configuration click the Apply button 81 82 Instant Broadband Se
32. 5 RAS RAS shown in Figure 8 7 is a service used in Singapore only If you are using a RAS connection check with your ISP for the necessary setup information When you are finished with the Setup tab proceed to step 5 45 46 Instant Broadband Series PPTP te Soe PPTP shown in Figure 8 8 is a service used in Europe only If you are using a PPTP con nection check with your ISP for the necessary setup infor mation When you are finished with the Setup tab proceed to step 5 Figure 3 8 5 If you haven t already done so click the Apply button to save your Setup settings Close the web browser 6 Reset the power on your cable or DSL modem 7 Restart your computers so that they can obtain the Router s new settings If you need advanced setting information please refer to Chapter 9 The Cable DSL Router s Web based Utility or the Linksys support website at support linksys com Congratulations You ve successfully configured the Router Test the setup by opening your web browser from any computer and entering www linksys com registration as shown in Figure 8 9 If you are unable to reach our Agdtess website you may want to review what you did in this section or refer to Appendix A Troubleshooting Z Hg vee links comregistrationt Figure 8 9 Proceed to Chapter 9 The Cable DSL Router s Web based Utility for more details and advanced settings info
33. A logical association that allows users to communicate as if they were physically connected to a single LAN independent of the actual physical configuration of the network Virtual Server Multiple servers that appear as one server or one system image to the operating system or for network administration Wake on LAN Wake on LAN is a technology that allows a network profes sional to remotely power on a computer or to wake it up from sleep mode WAN A communications network that covers a wide geographic area such as a state or country WEP Wired Equivalent Privacy A data privacy mechanism based on a 64 bit shared key algorithm as described in the IEEE 802 11 standard WINIPCFG Configuration utility based on the Win32 API for querying defining and managing IP addresses within a network A commonly used util ity for configuring networks with static IP addresses Workgroup Two or more individuals that share files and databases EtherFast Cable DSL Routers Appendix C How to Ping Your ISP s Email amp Web Addresses Virtually all Internet addresses are configured with words or characters e g www linksys com www yahoo com etc In actuality however these Internet addresses are assigned to IP addresses which are the true addresses on the Internet For example www linksys com is actually 216 23 162 142 Type it into your web browser and you will wind up at the Linksys home page every time There are servers t
34. Automatic search for a better drive Recommended and click the Next button see Figure 6 18 O Gpe ds i air wid ha hei ALi rel Figure 6 18 3 Windows will notify you that it has finished installing the driver files on your PC as shown in Figure 6 19 Click the Finish button Add Hie Hiesa Wine Labs Ca ut Cable TEL Flame ath LIEN FE shot on secs 31 Instant Broadband Series EtherFast Cable DSL Routers 4 Windows will ask you to restart your PC as shown in Figure 6 20 Click the Installing the Windows XP Driver Yes button 1 With the Router connected to your PC s USB port using a USB cable start E P ee ds up your PC in Windows XP 2 ha yraa al to rendue pou coin ntei rues 7 L Pound Ree Hardware FE LFB Deine Figure 6 20 Fg aa 5 When your PC has finished restarting click the Start button and select A UN a oa ia e E woe us paa oon Figure 6 22 Select Install from a list or specific location Advanced Settings and Control Panel Double click Network and you will see a and click the Next button see Figure 6 23 screen similar to that shown in Figure 6 21 Make sure that TCP IP is 8 i Tirra bees baad wee ai installed for your PC as shown in Figure 6 21 By default Windows Millennium has TCP IP installed If TCP IP is not installed please go to Appendix D Installing the TCP IP Protocol for instructions on installa tion Love de Thy Furl bre Harchasre ira
35. CI only machine there cannot be insufficient IRQs as all can be shared PCMCIA The PCMCIA Personal Computer Memory Card International Association is an industry group organized in 1989 to promote standards for a credit card size memory or I O device that would fit into a personal computer usually a notebook or laptop computer Ping Packet INternet Groper An Internet utility used to determine whether a particular IP address is online It is used to test and debug a network by sending out a packet and waiting for a response Plug and Play The ability of a computer system to configure expansion boards and other devices automatically without requiring the user to turn off the system during installation Port A pathway into and out of the computer or a network device such as a switch or router For example the serial and parallel ports on a personal com puter are external sockets for plugging in communications lines modems and printers Port Mirroring Port mirroring also known as a roving analysis port is a method of monitoring network traffic that forwards a copy of each incoming and outgoing packet from one port of a network switch to another port where the packet can be studied A network administrator uses port mirroring as a diag EtherFast Cable DSL Routers nostic tool or debugging feature especially when fending off an attack It enables the administrator to keep close track of switch performance and alter it i
36. Die mi Coble CAL Haie ths LS Pc OL ralph han soi caer sire Loge bairig be veep hr compat mih kre F I nergies able alu quast map el Comines mu Mio TT Figure 6 25 5 Windows will notify you that it has finished installing the driver files on your PC as shown in Figure 6 26 Click the Finish button to complete the USB driver installation Lau Hey Har deren Mine Compin hng the Frand Mew Hangers run Tha ampi ap bera irg ha eam iy HE AIE ie z4 Lekre E Bef tae Pimkie a LEA E ms Figure 6 26 6 Click the Start button and then Control Panel Click Network and Internet Connections and then Network Connections Double click Local Area Connection Click Properties Check for Internet Protocol TCP IP to make sure that TCP IP is installed on your PC By default Windows XP has TCP IP installed If TCP IP is not installed please refer to your Windows XP user guide to install TCP IP Your USB driver installation is now complete Go to Chapter 7 Configure the PCs 34 FtherFast Cable DSL Routers Chader 7 Corfigqure the PGS Overview The instructions in this chapter will help you configure each of your comput ers to be able to communicate with the Router To do this you need to configure your PC s network settings to obtain an IP or TCP IP address automatically called DHCP Computers use IP addresses to communicate with each other across a network or the Internet Find out which operating syst
37. ER ET ue lie LI Lercree DAL HOST i aries LCL Sn Figure 9 22 The DMZ Hosting feature shown in Figure 9 22 allows one local user to be exposed to the Internet for use of a special purpose service such as Internet gaming and videoconferencing Whereas Port Range Forwarding can only forward a maximum of 10 ranges of ports DMZ hosting forwards all the ports for one PC at the same time To expose one PC enter the computer s IP address To get the IP address of a computer refer to Appendix F Finding the MAC Address and IP Address for Your Ethernet Adapter e Deactivate DMZ by entering a 0 in the field When finished click the Apply button to save the settings Otherwise click the Cancel button to undo changes made on this screen 73 Instant Broadband Series MAC Address Clone 74 LJ orem ae m ien A A be ri Note This is a sample screen Please enter the MAC Address Ohms MAC Address for your Network Card Adapter into this field Figure 9 23 The Router s MAC address is a 12 digit code assigned to a unique piece of hardware for identification like a social security number If your ISP requires MAC address registration find your adapter s MAC address by following the instructions in Appendix F Finding the MAC Address and IP Address for Your Ethernet Adapter Enter the 12 digits of your adapter s MAC address in the on screen fields see Figure 9 23 T
38. G ON HAND WHEN CALLING RETURN REQUESTS CANNOT BE PROCESSED WITHOUT PROOF OF PURCHASE IN NO EVENT SHALL LINKSYS S LIABILITY EXCEED THE PRICE PAID FOR THE PRODUCT FROM DIRECT INDIRECT SPECIAL INCI DENTAL OR CONSEQUENTIAL DAMAGES RESULTING FROM THE USE OF THE PRODUCT ITS ACCOMPANYING SOFTWARE OR ITS DOCUMENTATION LINKSYS DOES NOT OFFER REFUNDS FOR ANY PRODUCT LINKS YS OFFERS CROSS SHIPMENTS A FASTER PROCESS FOR PRO CESSING AND RECEIVING YOUR REPLACEMENT LINKSYS PAYS FOR UPS GROUND ONLY ALL CUSTOMERS LOCATED OUTSIDE OF THE UNITED STATES OF AMERICA AND CANADA SHALL BE HELD RESPONSIBLE FOR SHIPPING AND HANDLING CHARGES PLEASE CALL LINKSYS FOR MORE DETAILS EtherFast Cable DSL Routers Appendix L Contact Infomation For help with the installation or operation of your Instant Broadband EtherFast Cable DSL Router contact Linksys Technical Support at one of the phone numbers or Internet addresses below Sales Information 800 546 5797 1 800 LINKSYS Technical Support 800 326 7114 RMA Issues 949 271 5461 Fax 949 265 6655 Email support linksys com Web site http www linksys com FTP site ftp ftp linksys com 123 Linksys www linksys com Copyright 2002 Linksys All Rights Reserved
39. Instant Broadband Series Ce Routers e Use this guide to install the following products BEFSRAL ver 2 EtherFast Cable DSL Router with 4 Port Switch BEFSRLB1 EtherFast Cable DSL Router with USB Port and 3 Port Switch BEFSRIL ver 2 EtherFast 1 Port Cable DSL Router Linksys COPYRIGHT amp TRADEMARKS Copyright 2002 Linksys All Rights Reserved Linksys and EtherFast are registered trademarks of Linksys Instant Broadband is a trademark of Linksys Microsoft Windows and the Windows logo are registered trademarks of Microsoft Corporation All other trademarks and brand names are the property of their respective proprietors LIMITED WARRANTY Linksys guarantees that every Instant Broadband EtherFast Cable DSL Router will be free from physical defects in material and workmanship for one year from the date of pur chase when used within the limits set forth in the Specifications section of this User Guide If the product proves defective during this warranty period call Linksys Technical Support in order to obtain a Return Authorization number BE SURE TO HAVE YOUR PROOF OF PURCHASE ON HAND WHEN CALLING When returning a product mark the Return Authorization number clearly on the outside of the package and include a copy of your original proof of purchase RETURN REQUESTS CANNOT BE PROCESSED WITHOUT PROOF OF PURCHASE All customers located outside of the United States of America and Canada shall be held responsible fo
40. Properties window and click the Close button in the Network window e Restart the computer if asked B Open a command prompt e For Windows 95 98 and Me please click Start and Run In the Open field type in command Press the Enter key or click the OK button e For Windows NT 2000 and XP please click Start and Run In the Open field type cmd Press the Enter key or click the OK button 78 EtherFast Cable DSL Routers C In the command prompt type ping 192 168 1 1 and press the Enter key e If you get a reply the computer is communicating with the Router e If you do NOT get a reply please check the cable and make sure Obtain an IP address automatically is selected in the TCP IP settings for your Ethernet adapter D In the command prompt type ping followed by your WAN IP address and press the Enter key The WAN IP Address can be found in the web inter face of the Router For example if your WAN IP address is 1 2 3 4 you would enter ping 1 2 3 4 and press the Enter key e If you get a reply the computer is connected to the Router e If you do NOT get a reply try the ping command from a different com puter to verify that your original computer is not the cause of the problem E In the command prompt type ping www yahoo com and press the Enter key e If you get a reply the computer is connected to the Internet If you can not open a webpage try the ping command from a different computer to verify that your origi
41. RJ 45 A connector similar to a telephone connector that holds up to eight wires used for connecting Ethernet devices Router Protocol dependent device that connects subnetworks together Routers are useful in breaking down a very large network into smaller subnet works they introduce longer delays and typically have much lower throughput rates than bridges Server Any computer whose function in a network is to provide user access to files printing communications and other services 101 102 Instant Broadband Series Software Instructions for the computer A series of instructions that performs a particular task is called a program The two major categories of software are system software and application software System software is made up of control programs such as the operating system and database management sys tem DBMS Application software is any program that processes data for the user A common misconception is that software is data It is not Software tells the hardware how to process the data SOHO Small Office Home Office Market segment of professionals who work at home or in small offices Static IP Address A permanent IP address that is assigned to a node in a TCP IP network Static Routing Forwarding data in a network via a fixed path Static routing cannot adjust to changing line conditions as can dynamic routing Storage The semi permanent or permanent holding place f
42. Router and cable DSL modem Wait 30 seconds and then turn on the Router cable DSL modem and computer Check the Status tab of the Router s web based utility to see if you get an IP address 4 amnot able to access the Router s web interface Setup page A Refer to Problem 2 I want to test my Internet connection to verify that your computer is properly connected to the Router B Refer to Appendix F Finding the MAC Address and IP address for Your Ethernet Adapter to verify that your computer has an IP Address Subnet Mask Gateway and DNS C Set a static IP address on your system refer to Problem 1 I need to set a static IP address D Refer to Problem 10 I need to remove the proxy settings or the dial up pop up window for PPPoE users 5 can t get my Virtual Private Network VPN working through the Router Access the Router s web interface by going to http 192 168 1 1 or the IP address of the Router and go to the Advanced gt Filter tab Make sure you have IPsec pass through and or PPTP pass through enabled VPNs that use IPSec with the ESP Encapsulation Security Payload known as protocol 50 authentication will work fine At least one IPSec session will work through the Router however simultaneous IPSec sessions may be possible depending on the specifics of your VPNs VPNs that use IPSec and AH Authentication Header known as protocol 51 are incompatible with the Router AH has l
43. Router from a remote location e To disable Remote Management click on Disable and click the Apply but ton If you wish to use this feature on the browser enter http lt WAN IP Address gt 8080 Enter your specific WAN IP Address in place of lt WAN IP Address gt e To disable this feature click on Disable and click the Apply button Using Remote Upgrade e This feature allows you to upgrade the Router s firmware from a remote loca tion To enable Remote Upgrade click on Enable and then click the Apply button Remote Management must be activated before you can manage the Router from a remote location FEtherFast Cable DSL Routers Using MTU Maximum Transmission Unit e This feature specifies the largest packet size permitted for network transmis sion Select Enable and enter the value desired It is recommended that you leave this value in the 1200 to 1500 range For most DSL users it is recom mended to use the value 1492 By default MTU is set at 1500 when disabled Port Range Forwarding Port Range Forwarding shown in Figure 9 17 sets up public services on your network such as web servers ftp servers e mail servers or other specialized Internet applications Specialized Internet applications are any applications that use Internet access to perform functions such as videoconferencing or online gaming Some Internet applications may not require any forwarding When users send this type of request to your networ
44. a DHCP server LAN side is enabled on the Router If you already have a DHCP server running on your network you must disable one of the two DHCP servers If you run more than one DHCP server on your network you will experience network errors such as conflicting IP addresses To disable DHCP on the Router see the DHCP section in Chapter 9 The Cable DSL Router s Web based Utility Note Even if you assign a static IP address to a PC other PCs can still use DHCP s dynamic IP addressing as long as the static IP address is not within the DHCP range of the LAN IP Address If the dynamic IP addressing fails to provide a dynamic IP address refer to Appendix A Troubleshooting EtherFast Cable DSL Routers Network Setup Overview This user guide covers the basic steps for setting up a network with a router After going through the appropriate Getting to Know the Router chapter Chapter 2 3 or 4 depending on which Router you have most users will only need to use the following chapters e Chapter 5 Connect the Router This chapter instructs you on how to connect the cable or DSL modem to the Router and connect the PC s to the Router e Chapter 7 Configure the PCs This chapter instructs you on how to configure your PC s for a DHCP con nection if the network settings are not already set to DHCP e Chapter 8 Configure the Router This chapter explains how to configure the Router using your web browser and
45. age click the Cancel button Continue to the Password section L Lema Remote Access Service RAS shown in Figure 9 8 is a service that applies to con nections in Singapore only For users in Singapore check with Singtel for information on RAS SETUP LS ES Faure wpe Lan Pi PUS Essen 7 Comme oo Ewmsmal Soe ble Toe Eki T paaa Abra Heche pasad E biis dp Corus Figure 9 8 User Name and Password Enter the User Name and Password supplied by Singtel RAS Plan Select the type of plan you have Connect on Demand and Max Idle Time You can configure the Router to cut your connection with your ISP after a specified period of time Max Idle Time If you have been disconnected due to inactivity Connect on Demand enables the Router to automatically re establish your connection as soon as you attempt to access the Internet again If you wish to activate Connect on Demand click the radio button If you want your Internet connection to remain on at all times enter 0 in the Max Idle Time field Otherwise enter the number of minutes you want to have elapsed before your Internet access disconnects Keep Alive Option and Redial Period This option keeps your PPPoE enabled Internet access connected indefinitely even when it sits idle To use this option click the radio button next to Keep Alive The default Redial Period is 30 seconds To apply any of the settings you change on a page click t
46. an abnormally long period of time see Appendix A Troubleshooting Proceed to Chapter 5 Connect the Router 17 Instant Broadband Series Chapter 5 Gonnect the Router Unlike a hub or a switch the Cable DSL Router s setup consists of more than simply plugging hardware together You will have to configure your networked PCs to accept the IP addresses that the Router assigns them if applicable and you will also have to configure the Router with setting s provided by your Internet Service Provider ISP The installation technician from your ISP should have left the setup informa tion with you after installing your broadband connection If not you can call your ISP to request the data Once you have the setup information you need for your specific type of Internet connection you can begin installation and setup of the Router Figure 5 1 EtherFast Cable DSL Routers Connecting Your Hardware Together and Booting Up 1 Before you begin make sure that all of your hardware is powered off includ ing the Router PCs hubs switches and cable or DSL modem 2 If you have the 4 Port Router go to step 2 A If you have the 1 Port Router go to step 2 B If you have the 3 Port Router go to step 2 C 2 A If you have the 4 Port Cable DSL Router connect one end of an Ethernet cable to one of the LAN ports labeled 1 2 3 or 4 on the back of the Router and the other end to a standard port on a network d
47. and pass control to it Bottleneck A traffic slowdown that results when too many network nodes try to access a single node often a server node at once EtherFast Cable DSL Routers Bridge A device that interconnects different networks together Broadband A data transmission scheme in which multiple signals share the bandwidth of a medium This allows the transmission of voice data and video signals over a single medium Cable television uses broadband techniques to deliver dozens of channels over one cable Browser A browser is an application program that provides a way to look at and interact with all the information on the World Wide Web or PC The word browser seems to have originated prior to the Web as a generic term for user interfaces that let you browse text files online Cable Modem A device that connects a computer to the cable television net work which in turn connects to the Internet Once connected cable modem users have a continuous connection to the Internet Cable modems feature asym metric transfer rates around 36 Mbps downstream from the Internet to the computer and from 200 Kbps to 2 Mbps upstream from the computer to the Internet CAT 3 ANSI EIA American National Standards Institute Electronic Industries Association Standard 568 is one of several standards that specify categories the singular is commonly referred to as CAT of twisted pair cabling systems wires junctions
48. bnet Mask Default Gateway and DNS Restart the computer that is having a problem e If the PCs are configured correctly but still not working check the Router Ensure that it is connected and ON Connect to it and check its settings If you cannot connect to it check the LAN and power connec tions e If the Router is configured correctly check your Internet connection DSL cable modem etc to see if it is working correctly You can remove the Router to verify a direct connection e Manually configure the TCP IP with a DNS address provided by your ISP e Make sure that your browser is set to connect directly and that any dial up is disabled For Internet Explorer click Tools Internet Options and then the Connection tab Make sure that Internet Explorer is set to Never dial a connection For Netscape Navigator click Edit Preferences Advanced and Proxy Make sure that Netscape Navigator is set to Direct connection to the Internet 19 The Full Col LED keeps flickering continuously e Check the Category 5 Ethernet cable and its RJ 45 connectors e There may be interference with other network devices Try removing other PCs or network devices to see if the problem persists Eliminate each network device one at a time to determine the cause 87 Instant Broadband Series Frequently Asked Questions 88 What is the maximum number of IP addresses that the Router will support The Router will support up to 253 IP addresses
49. braries at temporary offices and at meetings A notebook computer sometimes called a laptop com puter typically weighs less than five pounds and is three inches or less in thick ness Packet Filtering Discarding unwanted network traffic based on its originating address or range of addresses or its type e mail file transfer etc 99 100 Instant Broadband Series Partitioning To divide a resource or application into smaller pieces PCI Peripheral Component Interconnect A peripheral bus commonly used in PCs Macintoshes and workstations It was designed primarily by Intel and first appeared on PCs in late 1993 PCI provides a high speed data path between the CPU and peripheral devices video disk network etc There are typically three or four PCI slots on the motherboard In a Pentium PC there is generally a mix of PCI and ISA slots or PCI and EISA slots Early on the PCI bus was known as a local bus PCI provides plug and play capability automatically configuring the PCI cards at startup When PCI is used with the ISA bus the only thing that is gen erally required is to indicate in the CMOS memory which IRQs are already in use by ISA cards PCI takes care of the rest PCI allows IRQs to be shared which helps to solve the problem of limited IRQs available on a PC For example if there were only one IRQ left over after ISA devices were given their required IRQs all PCI devices could share it In a P
50. button If Windows does not ask you to restart restart your computer anyway Go to Chapter 8 Configure the Router 37 Instant Broadband Series Configuring Windows 2000 PCs 1 Go to the Network screen by clicking the Start button Click Settings and then Control Panel From there double click the Network and Dial up Connections icon 2 Select the Local Area Connection icon for the applicable Ethernet adapter usually it is the first Local Area Connection listed Do not choose a TCP IP entry whose name mentions DUN PPPoE VPN or AOL Double click the Local Area Connection Loc al irea Connection Status Figure 7 3 3 The Local Area Connection Status screen will appear as shown in Figure 7 3 Click the Properties button 38 EtherFast Cable DSL Routers 4 Select Internet Protocol TCP IP as shown in Figure 7 4 and click the Properties button Temmi Cred arg Leiga LE LEE LES TEST Er onl Cpe ee et oy de cree 2 rs oe ed Pore She ie eee een i Y a l ee ee rs _ Figure 7 4 5 Select Obtain an IP address automatically as shown in Figure 7 5 Once the new window appears click the OK button Click the OK button again to complete the PC configuration Figure 7 5 6 Restart your computer Go to Chapter 8 Configure the Router 39 Instant Broadband Series Configuring Windows XP PCs The following instructions assume you are running Windo
51. cation uses Follow these steps A To connect to the Router go to the web browser and enter http 192 168 1 1 or the IP address of the Router Enter the password if asked The default password is admin Click the Advanced gt Forwarding tab and click the Port Trigger button Enter any name you want to use for the Application Name Enter the Triggered Port Range Check with your Internet application provider for more information on which outgoing port services it is using Enter the Incoming Port Range Check with your Internet Application provider for more information on which incoming port services are required by the Internet application mya EtherFast Cable DSL Routers 17 The Diag LED stays lit continuously e The Diag LED lights up when the device is first powered up Meantime the system will boot up itself and check for proper operation After fin ishing the checking procedure the LED turns off to show that the system is working fine If the LED remains lit after this time the device is not working properly Try to flash the firmware by assigning a static IP address to the computer and then upgrade the firmware Try using the following settings IP Address 192 168 1 50 and Subnet Mask 255 255 255 0 18 When I enter a URL or IP address get a time out error or am prompted to retry e Check if other PCs work If they do ensure that your workstation s IP set tings are correct IP Address Su
52. d for connecting a hub to another hub there is an exception some hubs have a built in uplink port that is crossed internally this allows you to link or connect hubs together with a straight through cable instead Fire 4 5 T andl DIS DCE ied You can buy pre made Category 5 cables or cut and crimp your own Category 5 cables can be purchased or crimped as either straight through or crossover Inside a Category 5 cable are eight thin color coded wires inside that run from one end of the cable to the other All eight wires are used In a straight through cable wires 1 2 3 and 6 at one end of the cable are also wires 1 2 3 and 6 at the other end In a crossover cable the order of the wires Figure E 3 change from one end to the other wire 1 becomes 3 and 2 becomes 6 See Figures E 3 and E 4 on the next page for more detailed information on straight through and crossover cabling RJ 45 Color Chart Ip White with an Wire 1 Orange Stripe Wire 2 Drange White with a Wire 3 Green Stripe Wire 4 Blue White with a Wire 5 Blue Stripe Wire 6 Green White with a Wire 7 Brown Siripa Wire B PRE ahi abe Ym Bess Wr Hess TO determine which 1 1 Figure E 1 3 wire is wire number 1 3 C hold the cable so that the i o Din end of the plastic RJ 45 tip 4 presi the part that goes into a wall jack first is facing away spring H from you Fac
53. d in the browser Check our web site at www linksys com for more information 89 90 Instant Broadband Series If all else fails in the installation what can do Reset the Router by holding down the reset button until the Diag LED fully turns on and off Reset your cable or DSL modem by powering the unit off and then on Obtain and flash the latest firmware release that is readily available on the Linksys website www linksys com How will be notified of new Router firmware upgrades All Linksys firmware upgrades are posted on the Linksys website at www linksys com where they can be downloaded for free The Router s firmware can be upgraded with TFTP programs If the Router s Internet connection is working well there is no need to download a newer firmware version unless that version contains new features that you would like to use Downloading a more current version of Router firmware will not enhance the quality or speed of your Internet con nection and may disrupt your current connection stability Wil the Router function in a Macintosh environment Yes but the Router s setup pages are accessible only through Internet Explorer 4 0 or Netscape Navigator 4 0 or higher for Macintosh am not able to get the web configuration screen for the Router What can do You may have to remove the proxy settings on your Internet browser e g Netscape Navigator or Internet Explorer Or remove the dial up settings on your browse
54. d your network by connecting to another switch or hub To uplink to a switch or a hub simply run a cable from the Uplink port to the other device See the Uplinking Connecting More Devices to the Router section for more on uplinking If the Uplink port is being used Port 1 will not work The Power port is where you will connect the power adapter FtherFast Cable DSL Routers The 4 Port Router s Front Panel LEDs Power Link Act Full Col 100 Figure 2 2 Green The Power LED lights up when the Router is powered on Green The Link Act LED serves two purposes If the LED is continuously lit the Router is successfully connected to a device through the corresponding port 1 2 3 or 4 If the LED is flickering the Router is actively sending or receiving data over that port Port is lit when using the Uplink port Green The Full Col LED also serves two purposes If this LED is lit up continuously the connection made through the corresponding port is running in Full Duplex mode If the LED flickers the connection is experiencing collisions Infrequent collisions are normal If this LED flickers too often there may be a problem with your connection See Appendix A Troubleshooting if you encounter this problem Orange The 100 LED lights up when a successful 100Mbps connection is made through the corresponding port If this LED does not light up then your connection speed is 10 Mbps Insta
55. ddress is also called the Physical Address The example in Figure F 5 shows the IP address of your Ethernet adapter as 192 168 1 100 Your computer may show something different EtherFast Cable DSL Routers When entering the information using the Router s web based utility you will type the 12 digit MAC address in this format XXXXXXXXXXXX without the hyphens for MAC Filtering See Figure F 6 Fikered MAC Addresa 1 10 meat i mec L ead A ma men Bi meet th mac T 08 ms Ei et OI eee OI ee ee OI mt 18 sey _ur Figure F 6 When entering information for MAC Address Cloning type the 12 digit MAC address see Figure F 7 D eee au BE DNS 5 bimi D A es ee ee Jp y Be dj LE E En ie Le E her 115 Instant Broadband Series Appendix G Setting Up AQ Broadband Cable amp DSL This document provides instructions for setting up the Router using firmware version 1 43 or above to work with AOL Broadband via a Cable or DSL con nection This Router s AOL Parental Controls feature is available for AOL cus tomers in the US only Please follow the instructions in the appropriate section below to configure for AOL Broadband for the type of broadband connection you have Note You must install AOL 7 0 or above to all computers using AOL Services Those with earlier versions of AOL can find details at AOL Keyword Linksys Setup Note Some of the screens in this secti
56. ddress when configuring the Router You can get the information from your ISP Dynanic IP Addresses A dynamic IP address is automatically assigned to a device on the network such as PCs and print servers These IP addresses are called dynamic because they are only temporarily assigned to the PC or device After a certain time period they expire and may change If a PC logs onto the network or the Internet and its dynamic IP address has expired the DHCP server will assign it a new dynamic IP address For DSL users many ISPs may require you to log on with a user name and password to gain access to the Internet This is a dedicated high speed con nection type called Point to Point Protocol over Ethernet PPPoE PPPoE is similar to a dial up connection but PPPoE does not dial a phone number when establishing a connection PPPoE also will provide the Router with a dynamic IP address to establish a connection to the Internet DHCP Dynamic Host Configuration Protocol Servers PCs and other network devices using dynamic IP addressing are assigned a new IP address by a DHCP server The PC or network device obtaining an IP address is called the DHCP client DHCP frees you from having to assign IP addresses manually every time a new user is added to your network A DHCP server can either be a designated PC on the network or another net work device such as the Router By default the Router s WAN setting is DHCP client By default
57. down the Adapter Address as shown on your computer screen see Figure F 3 This is the MAC address for your Ethernet adapter and will be shown as a series of numbers and letters The MAC address Adapter Address is what you will use for MAC Address Cloning or MAC Filtering EL Cont NO aa Likapa LHETOOTS Faut Ethernet Pade 40681100 Subnet Heat 262280 Peene _fan jam ad DO Perwal Mewir nr Figure F 3 The example in Figure F 3 shows the IP address of your Ethernet adapter as 192 168 1 100 Your computer may show something different f Note The MAC address is also called the Adapter Address For Windows NT 2000 and XP The following steps show an alternative way of obtaining the MAC address and IP address for your Ethernet adapter 1 Click on Start and Run In the Open field enter cmd as shown in Figure F 4 Press the Enter key or click the OK button CORRE sl Tppe the miea of pemp ra Dide deep or A a e eN em y Figure F 4 113 114 Instant Broadband Series 2 In the command prompt enter ipconfig all Then press the Enter key Figure F 5 3 Write down the Physical Address as shown on your computer screen Figure F 5 it is the MAC address for your Ethernet adapter This will appear as a series of letters and numbers The MAC address Physical Address is what you will use for MAC Address Cloning or MAC Filtering A Note The MAC a
58. e net work connected to the Router You can only use an IP address in the ranges 192 168 1 2 to 192 168 1 99 and 192 168 1 151 to 192 168 1 254 Enter the Subnet Mask 255 255 255 0 Enter the Default Gateway 192 168 1 1 Router s default IP address Toward the bottom of the window select Use the following DNS server addresses and enter the Preferred DNS server and Alternative DNS server provided by your ISP Contact your ISP or go on its website to find the infor mation Click the OK button in the Internet Protocol TCP IP Properties window Click the OK button in the Local Area Connection Properties window 2 want to test my Intemet connection A Check your TCP IP settings For Windows 95 98 and Me Refer to Appendix D Installing the TCP IP Protocol and Chapter 7 Configure the PCs for details Make sure Obtain IP address automatically is selected in the settings For Windows 2000 e Click Start Settings and Control Panel Double click Network and Dial Up Connections e Right click the Local Area Connection that is associated with the Ethernet adapter you are using and select the Properties option e In the Components checked are used by this connection box highlight Internet Protocol TCP IP and click the Properties button Make sure that Obtain an IP address automatically and Obtain DNS server address automatically are selected 77 Instant Broadband Series e Click the OK bu
59. e ping mail assuming that the loca tion for which you re trying to find an IP address is configured as mail Press Enter Information such as the following data taken from a ping of Microsoft Network s e mail server will be displayed C gt ping mail Paine auoe weal A4 53 32 4 Mini 32 loyices os GCleteeis Reply from 24 53 32 4 bytes 32 time lt l0ms TTL 128 Reply from 24 53 32 4 bytes 32 time lt l0ms TTL 128 Reply from 24 53 32 4 bytes 32 time lt l0ms TTL 128 Reply from 24 53 32 4 bytes 32 time lt l0ms TTL 128 Pine Sraristice cow 24 53 352 42 Packets Sent 4 Received 4 Lost 0 0 loss Approximate round trip times in milli seconds Minimum Oms Maximum Oms Average Oms Figure C 1 4 Write down the IP address returned by the ping command In the example above 24 53 32 4 This IP address is the actual IP address of the server mail or any other word or value you have pinged FtherFast Cable DSL Routers Step Two Pinging for a Web Address While the IP address returned above would work as your e mail server address it may not be permanent IP addresses change all the time Web addresses how ever usually don t Because of this you re likely to have fewer problems by configuring your system with web addresses rather than IP addresses Follow the instructions below to find the web address assigned to the IP address you just pinged 1 Atthe DOS command prompt type ping a 24 53
60. e sequencing of the packets that the data arrives in This means that the application program that uses UDP must be able to make sure that the entire message has arrived and is in the right order Network applications that want to save processing time because they have very small data units to exchange and therefore very little message reassembling to do may prefer UDP to TCP Upgrade To replace existing software or firmware with a newer version Upload To send a file transmitted over a network In a communications ses sion upload means transmit and download means receive 103 104 Instant Broadband Series URL Uniform Resource Locator The address that defines the route to a file on the Web or any other Internet facility URLs are typed into the browser to access Web pages and URLs are embedded within the pages themselves to pro vide the hypertext links to other pages UTP Unshielded twisted pair is the most common kind of copper telephone wiring Twisted pair is the ordinary copper wire that connects home and many business computers to the telephone company To reduce crosstalk or electro magnetic induction between pairs of wires two insulated copper wires are twist ed around each other Each signal on twisted pair requires both wires Since some telephone sets or desktop locations require multiple connections twisted pair is sometimes installed in two or more pairs all within a single cable VLAN Virtual LAN
61. e the clip down so that the copper side faces clip on up the springy clip will now be parallel to the floor i ent When looking down on the copper side wire 1 will be on i the far left F z Figure E 4 Figure E 2 111 112 Instant Broackand Series Appendix Anding the MAC Address and IP Address for Your Ethemet Adapter This section describes how to find the MAC address for your Ethernet adapter to do either MAC Filtering or MAC Address Cloning for the Router and ISP You can also find the IP address of your computer s Ethernet adapter The IP address is used for filtering forwarding and DMZ Follow the steps in this appendix to find the MAC address or IP address for your adapter in Windows 95 98 Me NT 2000 and XP For Windows 95 98 and Me 1 Click on Start and Run In the Open field enter winipcfg as shown in Figure F 1 Then press the Enter key or the OK button Fees bhs rares oa ogan Folder daca cu Inderal veus ed eines eal opas Los pai Dee wets Co Home Figure F 1 2 When the IP Configuration window appears select the Ethernet adapter you are using to connect to the Router via a CAT 5 Ethernet cable as shown in Figure F 2 _ cag ijare Adeste Ieksernaborn Lire LHE 100TH Fait Eene m Adapa Adise IPAdcer 1gs Juwi ak SEM Delai Gate 15208812 m me __ Fig A Fret Aa bone Inde Figure F 2 EtherFast Cable DSL Routers 3 Write
62. econds Click the Apply button Click the Status tab and click the Connect button You may see the login status display as Connecting Press the F5 key to refresh the screen until you see the login status display as Connected G Click the Apply button to continue mmo If the connection is lost again follow steps E to G to re establish connection 85 86 Instant Broadband Series 15 can t access my email web or VPN or am getting corrupted data from the Internet The Maximum Transmission Unit MTU setting may need to be adjusted By default the MTU is set at 1500 For most DSL users it is strongly recom mended to use MTU 1492 If you are having some difficulties perform the fol lowing steps gt To connect to the Router go to the web browser and enter http 192 168 1 1 or the IP address of the Router Enter the password if asked The default password is admin Click the Advanced gt Filter tab Look for the MTU option and select Enable In the Size field enter 1492 Click the Apply button to continue moaw If your difficulties continue change the Size to different values Try this list of values one value at a time in this order until your problem is solved 1462 1400 1362 1300 16 need to use port triggering Port triggering looks at the outgoing port services used and will trigger the Router to open a specific port depending on which port an Internet appli
63. em your computer is running such as Windows 95 98 Millennium NT 4 0 2000 or XP You will need to know which oper ating system your computer is running You can find out by clicking the Start button and then going to the Settings option Then click Control Panel and then double click the System icon If your Start menu doesn t have a Settings option you re running Windows XP Click the Cancel button when done You may need to do this for each computer you are connecting to the Router Important These instructions apply only to Windows 95 Windows 98 Windows Millennium Windows 2000 or Windows XP machines For TCP IP setup under Windows NT see your Windows manual By default Windows 98 2000 Me and XP has TCP IP installed and set to obtain an IP address automatically The next few pages tell you step by step how to configure your network set tings based on the type of Windows operating system you are using Make sure that an Ethernet card or adapter has been successfully installed in each PC you will configure the only exception is the PC you connect to the 3 Port Router using the USB port and cable Once you ve configured your computers con tinue to Chapter 8 Configure the Router 35 36 Instant Broadband Series Configuring Windows 95 98 and Millennium PCs 1 Go to the Network screen by clicking the Start button Click Settings and then Control Panel From there double click the Network icon
64. ere a cable or DSL modemin the Router No this version of the Router must work in conjunction with a cable or DSL modem Which modems are compatible with the Router The Router is compatible with virtually any cable or DSL modem that supports Ethernet What are the advanced features of the Router The Router s advanced features include IP Filtering Port Range Forwarding Dynamic Routing Static Routing DMZ hosting and MAC Address Cloning What is the maximum number of VPN sessions allowed by the Router The maximum number depends on many factors At least one IPSec session will work through the Router however simultaneous IPSec sessions may be possible depending on the specifics of your VPNs How big is the memory buffer on the Router 1MB buffer and 512KB flash How can I check whether I have static or DHCP IP Addresses Consult your ISP to obtain this information How do I get MRC to work with the Router Under the Port Range Forwarding tab set port forwarding to 113 for the PC on which you are using mIRC If your questions are not addressed here refer to the Linksys website www linksys com 91 92 Instant Broadband Series Appendix B Gossary 10BaseT An Ethernet standard that uses twisted wire pairs 100BaseTX IEEE physical layer specification for 100 Mbps over two pairs of Category 5 UTP or STP wire 1000BASE T Provides half duplex CSMA CD and full duplex 1000 Mbps Ethernet service over Category 5
65. es of ports Click the Apply button when you are done UPnP Forwarding The UPnP Forwarding screen shown in Figure 9 18 displays preset application settings as well as options for customization of port services for other applications The Preset Applications are among the most widely used Internet applications They include the following FTP File Transfer Protocol A protocol used to transfer files over a TCP IP network Internet UNIX etc For example after developing the HTML pages for a website on a local machine they are typically uploaded to the web server using FTP FTP includes functions to log onto the network list directories and copy files It can also convert between the ASCII and EBCDIC character codes FTP operations can be performed by typing commands at a command prompt or via an FTP utility running under a graphical interface such as Windows FTP transfers can also be initiated from within a web browser by entering the URL preceded by ftp FEtherFast Cable DSL Routers Telnet A terminal FERRER Hs E E E Ses SS M emulation protocol ig Geet mee gee a ra dE es ij mm a ve s ee commonly used on Internet and TCP IP based net works It allows a user at a terminal or computer to log onto a remote device and run a program CIEE ins isa F moe immaik COIN EI itia LEITT E SMTP Simple Mail Transfer ME its al Protocol The stan aa ce BO jus dard e mail protocol J on the I
66. etwork card has been successfully installed inside the PC These instructions are for Windows 95 Windows 98 and Windows Me For TCP IP setup under Windows NT 2000 and XP see your Windows documentation or the Help feature 1 Click the Start button Choose Settings and then Control Panel 2 Double click on the Network icon to bring up your Network window Select the Configuration tab as shown in Figure D 1 3 Click the Add button 4 Double click on Protocol 5 Highlight Microsoft under the list of manufacturers FtherFast Cable DSL Routers 6 Find and double click TCP IP in the list to the right see Figure D 2 Figure D 2 7 After a few seconds the main Network window will appear The TCP IP Protocol should now be listed as shown in Figure D 3 Figure D 3 8 Click the OK button Windows may ask for original Windows installation files Supply them as needed e g c windows options cabs D win98 D win95 9 Windows will ask you to restart the PC Click the Yes button The TCP IP installation is now complete 109 Instant Broadband Series EtherFast Cable DSL Routers Appendix E WwistecPair Cabling Crimping Your Own Network Cables There are different grades or categories of twisted pair cabling Category 5 is the most reliable and most highly recommended Category 3 is a good sec ond choice Straight through cables are used for connecting computers to a hub Crossover cables are use
67. evice e g a PC print server hub or switch See Appendix E Twisted Pair Cabling for details on network cabling f Note A standard port is any port other than the WAN port and the Uplink port on the Router Itis a straight through port Repeat the above step to connect more PCs or network devices to the Router 2 B If you have the 1 Port Router connect one end of an Ethernet cable to the LAN port on the back of the Router and the other end to a port on a net work device e g a PC hub or switch If you are using the LAN Port to con nect to a PC set the Crossover switch to straight through mode Il If you are connecting the Router to a hub or switch refer to the chart shown in Figure 5 2 when setting the Crossover switch Straight Through Cake Cr er Cable LAN Part on Maude LAN Pan on Foster LE Fe Mec Por en Seti cr Ab da Part on Filok or Aa Lal Fert on fooler LAN Pour ar Ailey ra hi Apink Mer an eilei or Fran Arpal Pvt an Seaton or Mab Figure 5 2 2 C If you have the 3 Port Cable DSL Router connect one end of an Ethernet cable from the Router s LAN ports labeled 1 2 or 3 to an Ethernet adapter port on a PC hub switch or other network device The 3 Port Router features one USB plug and play port that connects instantly to any USB ready PC or USB hub This allows you to connect to and access the Router without even installing any Ethernet adapter cards 19 20 Instant Broadband Series
68. example within an office building Latency The time delay between when the first bit of a packet is received and the last bit is forwarded MAC Address The MAC Media Access Control address is a unique number assigned by the manufacturer to any Ethernet networking device such as a net work adapter that allows the network to identify it at the hardware level Mbps MegaBits Per Second One million bits per second unit of measure ment for data transmission mIRC mIRC runs under Windows and provides a graphical interface for log ging onto IRC servers and listing joining and leaving channels Motherboard A motherboard is the physical arrangement in a computer that contains the computer s basic circuitry and components NAT NAT Network Address Translation is the translation of an Internet Protocol address IP address used within one network to a different IP address known within another network One network is designated the inside network and the other is the outside EtherFast Cable DSL Routers NetBEUI NetBIOS Extended User Interface The transport layer for NetBIOS NetBIOS and NetBEUI were originally part of a single protocol suite that was later separated NetBIOS sessions can be transported over NetBEUI TCP IP and SPX IPX protocols NetBIOS The native networking protocol in DOS and Windows networks Although originally combined with its transport layer protocol NetBEUD NetBIOS today provides a pr
69. f necessary Port mirroring can be managed locally or remotely PPPoE Point to Point Protocol over Ethernet A method used mostly by DSL providers for connecting personal computers to a broadband modem for Internet access It is similar to how a dial up connection works but at higher speeds and quicker access PPTP Point to Point Tunneling Protocol A protocol set of communication rules that allows corporations to extend their own corporate network through private tunnels over the public Internet Effectively a corporation uses a wide area network as a single large local area network A company no longer needs to lease its own lines for wide area communication but can securely use the pub lic networks This kind of interconnection is known as a virtual private network VPN PrintServer A hardware device that enables a printer to be located anywhere in the network RIP Routing Information Protocol A simple routing protocol that is part of the TCP IP protocol suite It determines a route based on the smallest hop count between source and destination RIP is a distance vector protocol that routinely broadcasts routing information to its neighboring routers and is known to waste bandwidth AppleTalk DECnet TCP IP NetWare and VINES all use incom patible versions of RIP RJ 11 Registered Jack 11 A telephone connector that holds up to six wires The RJ 11 is the common connector used to plug a telephone into a wall
70. feature you can prevent your network from being pinged or detected by other Internet users The Block WAN Request feature also reinforces your network security by hiding your network ports Both functions of the Block WAN Request feature make it more diffi cult for outside users to work their way into your network e Click the Apply button to save your changes Using Multicast Pass Through e This feature allows for multiple transmissions to specific recipients at the same time Select Enable to support the feature or Disable to keep the Router from multicasting Using IPSec Pass Through e This feature lets you use IPSec Pass Through To use this feature click the Enable button next to IPSec Pass Through and then the Apply button e IPSec Pass Through is enabled by default To disable IPSec Pass Through click on Disable and then the Apply button Using PPTP Pass Through e Point to Point Tunneling Protocol is the method used to enable VPN sessions To enable this feature click the Enable button next to PPTP Pass Through and click the Apply button e PPTP Pass Through is enabled by default To disable this feature click on Disable next to PPTP Pass Through and then the Apply button Using Remote Management e This feature allows you to manage the Router from a remote location via the Internet To enable this feature click on Enable and click the Apply button Remote Management must be activated before you can manage the
71. hat translate the URL to an IP address this is called Domain Name System DNS IP and web addresses however can sometimes be long and hard to remember Because of this certain ISPs will shorten their server addresses to single words or codes on their users web browser or e mail configurations If your ISP s e mail and web server addresses are configured with single words www e mail home pop3 etc rather than whole Internet addresses or IP addresses the Router may have problems sending or receiving mail and accessing the Internet This happens because the Router has not been configured by your ISP to accept their abbreviated server addresses The solution is to determine the true web addresses behind your ISPs code words You can determine the IP and web addresses of your ISP s servers by pinging them Important If you don t have your ISP s web and e mail IP addresses you must either get them from your ISP or follow these steps prior to connecting your Cable DSL Router to your network 105 106 Instant Broadband Series Step One Pinging an IP Address The first step to determining your ISP s web and e mail server address is to ping its IP address 1 Power on the computer and the cable or DSL modem and restore the network configuration set by your ISP if you have since changed it 2 Click Start then Run and type command This will bring up the DOS window 3 At the DOS command prompt typ
72. he Apply button To cancel any values you ve entered on any page click the Cancel button Continue to the Password section 53 Instant Broadband Series 54 al al ed te pm De Fos fee bate Sie BA Dent feces Gee j wah SOB db Le espe A 1 mm rm a pa us L Linea om ow thea ee de peed on pe de oe panied maar be ee then b CHERE Borm Pommeri G Figure 9 9 You should always have a password set for the Router This is done through the Password tab shown in Figure 9 9 The default password is admin If you don t change the password all users on your network will be able to access the Router using the default password admin Universal Plug and Play UPnP allows Windows XP to automatically config ure the Router for various Internet applications such as gaming and videocon ferencing Click the radio button next to Enable to enable UPnP Services or Disable to disable UPnP Services If you select the Restore Factory Default option and click the Apply button you will clear all of the Router s settings Do not restore the factory defaults unless you are having difficulties with the Router and have exhausted all other troubleshooting measures Once the Router is reset you will have to re enter all of your configuration data To apply any of the settings you change on a page click the Apply button To cancel any values you ve entered on any page click the Cancel button EtherFast Cable DSL Ro
73. he network connected to the Router You can only use an IP address in the ranges 192 168 1 2 to 192 168 1 99 and 192 168 1 151 to 192 168 1 254 Enter the Subnet Mask 255 255 255 0 Enter the Default Gateway 192 168 1 1 Router s default IP address Click the DNS tab and enter the Host and Domain names e g John for Host and home for Domain Under DNS Service Search Order click the Add button Enter the DNS IP address in the DNS Server field and click the Add button Repeat this action for all DNS IP addresses given by your ISP Click the OK button in the TCP IP Protocol Properties window and click the Close button in the Network window Restart the computer if asked EtherFast Cable DSL Routers For Windows XP The following instructions assume you are running Windows XP with the default interface If you are using the Classic interface where the icons and menus look like previous Windows versions please follow the instructions for Windows 2000 A B ma Click Start and Control Panel Click the Network and Internet Connections icon and then the Network Connections icon Right click the Local Area Connection that is associated with the Ethernet adapter you are using and select the Properties option In the This connection uses the following items box highlight Internet Protocol TCP IP Click the Properties button Enter a unique IP address that is not used by any other computer on th
74. his clones your network adapter s MAC address onto the Router so you do NOT have to call your ISP to change the registered MAC address to the Router s MAC address When finished making your changes on this tab click the Apply button to save these changes or click the Cancel button to undo your changes FEtherFast Cable DSL Routers Appendix A Troubleshooting Common Problems and Solutions This appendix consists of two parts Common Problems and Solutions and Frequently Asked Questions Provided are possible solutions to problems regarding the installation and operation of the Router If your situation is described here the problem should be solved by applying the corresponding solution If you can t find an answer here check the Linksys website at www linksys com L need to set a static IP address on a PC The Router by default assigns an IP address range of 192 168 1 100 to 192 168 1 150 using the DHCP server on the Router To set a static IP address you can only use the ranges 192 168 1 2 to 192 168 1 99 and 192 168 1 151 to 192 168 1 254 Each PC or network device that uses TCP IP must have a unique address to identify itself in a network If the IP address is not unique to a network Windows will generate an IP conflict error message You can assign a static IP address to a PC by performing the following steps For Windows 95 98 and Me A Click Start Settings and Control Panel Double click Net
75. ic IP Address RAS and PPTP These types are listed in the drop down menu for the WAN Connection Type setting Each Setup screen and available features will differ depending on what kind of connec tion type you select Proceed to the instructions for the connection type you are using When you are finished with the Setup tab proceed to step 5 IMPORTANT If you have previously enabled any Internet sharing proxy server software on any of your PCs you must disable it now Some examples of Internet sharing software are Internet LanBridge Wingate ICS and Sygate To disable your Internet sharing software e If you are running Netscape Navigator click Edit gt gt Preferences gt gt Advanced gt gt Proxies Click Direct Connection to the Internet e If you are running Internet Explorer 5 x or higher click Start gt gt Settings gt gt Control Panel gt gt Internet Options gt gt Connections gt gt LAN Settings Remove checkmarks from all three boxes Click the OK button to continue Also you must disable any Internet log on software such as Ivasion Winpoet or Enternet 300 and any firewall software such as ZoneAlarm and Watchdog on all of your PCs 43 44 Instant Broadband Series DHCP or Obtain an IP Address Automatically If your ISP says 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 WAN Connection Type as
76. id a br H eS AT ara rs g ps Casse pea lire men CT fes LAETH FEF U uem saram in wnr ites ppsa SE H Oe bea te a T bardi PE Ce aa wes IADE LP Figure G4 Note AOL Parental Controls are available to AOL customers in the Unites States Only 117 Instant Broadband Series AOL Broadband via DSL F e t y F cr j 1 Open your web browser Enter cal http 192 168 1 1 in the web LU 3 90 d Eee a browser s Address field as shown in Figure G 5 and press the Enter key Figure G5 CE y is 2 A password request page shown in a Seoni NEE Figure G 6 will appear Windows XP i eTe users will see a Connect to Beaks PC PL PL me 192 168 1 1 window slightly different cate from that shown Leave the User gt a Name field blank and enter admin in rent the Password field Then click the L _t s OK button Figure G6 3 From the Setup screen that appears shown in Figure G 7 select PPPoE from the WAN Connection Type drop down menu Enter america online for the User Name In the password field multiple asterisks will appear Keep these settings and click the Apply button to save them Click the X button on the top right side of the window to close it Figure G7 118 FEtherFast Cable DSL Routers Appendix H 4 Port Router Specifications Model Number BEFSR41 ver 2 Standards IEEE 802 3 10BaseT IEEE 802 3u 100BaseTX Protocol CSMAYCD Port
77. imitations due to occasional incom patibility with the NAT standard Change the IP address for the Router to another subnet to avoid a conflict between the VPN IP address and your local IP address For example if your VPN server assigns an IP address 192 168 1 X X is a number from 1 to 254 and your local LAN IP address is 192 168 1 X X is the same number used in the VPN IP address the Router will have difficulties routing information to the right location If you change the Router s IP address to 192 168 2 1 that should solve the problem Change the Router s IP address through the Setup tab of the web interface If you assigned a static IP address to any computer or net work device on the network you need to change its IP address accordingly to 192 168 2 Y Y being any number from 1 to 254 Note that each IP address must be unique within the network EtherFast Cable DSL Routers Your VPN may require port 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 website for more information at www linksys com 6 need to set up a server behind my Router To use a server like a web ftp or mail server you need to know the respective port numbers they are using For example port 80 HTTP is used for web port 21 FTP is used for FTP and port 25 SMTP outgoing and port
78. k medium that cannot support the original size of the packet FTP File Transfer Protocol A protocol used to transfer files over a TCP IP network Internet UNIX etc For example after developing the HTML pages for a website on a local machine they are typically uploaded to the Web server using FTP FTP includes functions to log onto the network list directories and copy files It can also convert between the ASCII and EBCDIC character codes FTP oper ations can be performed by typing commands at a command prompt or via an FTP utility running under a graphical interface such as Windows FTP transfers can also be initiated from within a Web browser by entering the URL preceded with ftp Unlike e mail programs in which graphics and program files have to be attached FTP is designed to handle binary files directly and does not add the overhead of encoding and decoding the data EtherFast Cable DSL Routers Full Duplex The ability of a device or line to transmit data simultaneously in both directions Gateway A device that interconnects networks with different incompatible communications protocols Half Duplex Data transmission that can occur in two directions over a single line but only one direction at a time Hardware Hardware is the physical aspect of computers telecommunications and other information technology devices The term arose as a way to distin guish the box and the electronic circuitry
79. k via the Internet the Router will forward those requests to the appropriate PC Before using Forwarding the Router s DHCP function must be disabled under the DHCP tab and the Router must be assigned a new static LAN IP address because the IP address may change when using the DHCP server Drar ea eas brass ian eens i C oo Fee es Les Ex DA Geet gree eee dB Sib vo mm jar ipi aa jhe iff anal mae Figure 9 17 65 66 Instant Broadband Series If you need to forward all ports to one PC see the DMZ section To add a server using Port Range Forwarding 1 Enter the name of the application in the appropriate Customized Applications field Next to the name of the application enter the number or range of the exter nal port s used by the server or Internet application in the Ext Port column Check with the Internet application software documentation for more infor mation On the same line select the protocol UDP or TCP or select both protocols Enter the IP address of the server that you want the Internet users to be able to access To find the IP address go to Appendix F Finding the MAC Address and IP Address for Your Ethernet Adapter Check the Enable box to enable the services you have defined Port Range Forwarding will not function if the Enable button is left unchecked This is disabled unchecked by default Configure as many entries as needed the Router supports up to 10 rang
80. l be e mailed to you after you purchase ZoneAlarm Pro 59 60 Instant Broadband Series Enforce ZoneAlarm Pro Security Check this box to enable ZoneAlarm Pro on the Router This will require every PC to have ZoneAlarm Pro installed before being allowed to access the Internet except for exempt computers Enforcement Level This sets how often ZoneAlarm Pro will check for unauthorized intrusions More Secure default setting enables ZoneAlarm Pro to check frequently Conserve Bandwidth enables ZoneAlarm Pro to check less frequently this uses less bandwidth It is recommended to set the Enforcement Level at the More Secure setting unless there is a decrease in the Router s performance PC cillin Settings If you have downloaded PC cillin complete this section Enforce PC cillin Anti Virus Check this box to enable PC cillin Anti Virus on the Router Exempt Computers If you wish to exempt any computers from enforcement of ZoneAlarm Pro and or PC cillin complete this section Enable Disable To enable or disable computer exemptions click Enable or Disable From IP Address To IP Address Enter the range of IP addresses for the computers you want to exempt from enforcement of ZoneAlarm Pro and or PC cillin AOL Parental Controls Enabling this engages AOLs proprietary Parental Control feature Enabling this will disable all options under the Advanced tab except MAC Address cloning Note AOL Parental Controls are a
81. le to access To find the IP address go to Appendix F Finding the MAC Address and IP Address for Your Ethernet Adapter 6 Check the Enable box to enable the services you have defined UPnP Forwarding will not function if the Enable button is left unchecked This is disabled unchecked by default Port Triggering poison eus Tigger Pert ergs becring Port Masque t E a Eo 0 o a E ja 4 f k 7 a E li a sf fF tr E a E J E ER al i fa i fa i i h E oE EE iE al E a 1 p E Sense Figure 9 19 From the Port Range Forwarding screen shown in Figure 9 19 click the Port Triggering button to allow the Router to watch outgoing data for specific port numbers The IP address of the computer that sends the matching data is remembered by the Router so that when the requested data returns through the Router the data is pulled back to the proper computer by way of IP address and port mapping rules 1 2 Enter the Application Name of the trigger Enter the Trigger Port Range used by the application Check with the Internet application for the port number needed Enter the Incoming Port Range used by the application Check with the Internet application for the port number needed Click the Apply button 69 Instant Broadband Series Dynamic Routing Pir eat Beasties res kiemai PE Le Eu DS Des poeme Jui np Bik Dh 2 Mens res eau a JUKE CE ns D PEL LL Linkai
82. le option for the port services you want to use Consider the example below Customized Ext Port TCP UDP IP Address Enable Applications ES TE yee QT oat ae eens ee Ne UT 7777 to 27900 X X 192 168 1 100 X Halflife 27015 to 27015 X X 192 168 1 105 X PC Anywhere 5631 to 5631 X 192 168 1 102 X VPN IPSEC 500 to 500 X 192 168 1 100 X When you have completed the configuration click the Apply button EtherFast Cable DSL Routers 8 can t get the Intemet game server or application to work If you are having difficulties getting any Internet game server or application to function properly consider exposing one PC to the Internet using DeMilitarized Zone DMZ hosting This option is available when an applica tion requires too many ports or when you are not sure which port services to use Make sure you disable all the forwarding entries if you want to success fully use DMZ hosting since forwarding has priority over DMZ hosting In other words data that enters the Router will be checked first by the forwarding settings If the port number that the data enters from does not have port for warding then the Router will send the data to whichever PC or network device you set for DMZ hosting Follow these steps to set DMZ hosting A Access the Router s web based utility by going to http 192 168 1 1 or the IP address of the Router Go to the Advanced gt Forwarding tab B Disable or remove the entries you have entered for forwarding
83. links as defined by ANSI TIA EIA 568 A Topology rules for 1000BASE T are the same as those used for 100BASE T Category 5 link lengths are limited to 100 meters by the ANSI TIA EIA 568 A cabling standard Only one CSMA CD repeater will be allowed in a collision domain Adapter Printed circuit board that plugs into a PC to add to capabilities or con nectivity to a PC In a networked environment a network interface card NIC is the typical adapter that allows the PC or server to connect to the intranet and or Internet Auto negotiate To automatically determine the correct settings The term is often used with communications and networking For example Ethernet 10 100 cards hubs and switches can determine the highest speed of the node they are connected to and adjust their transmission rate accordingly Backbone The part of a network that connects most of the systems and net works together and handles the most data Bandwidth The transmission capacity of a given facility in terms of how much data the facility can transmit in a fixed amount of time expressed in bits per second bps Bit A binary digit The value O or 1 used in the binary numbering system Also the smallest form of data Boot To cause the computer to start executing instructions Personal comput ers contain built in instructions in a ROM chip that are automatically executed on startup These instructions search for the operating system load it
84. n again or the Close button if any settings were changed to complete the PC con figuration hu nat FTP Pepa De i meena CLR ak pn a Dur oF sima sans 2 Ja ba bima F idee eer OA n a aos eg hey Sv ron sara 6 Restart your computer Go to Chapter 8 Configure the Router 41 42 Instant Broadband Series Chapter 8 Configure the Router This chapter will show you how to configure the Router to function in your net work and gain access to the Internet through your Internet Service Provider ISP Detailed description of the Router s Web based Utility can be found in Chapter 9 The Cable DSL Router s Web based Utility Your ISP may require the use of a Host Name and Domain Name Further you will set the WAN Connection Type on the Router s Setup tab based on the information provided by your ISP You will need the setup information from your ISP If you do not have this information please contact your ISP before proceeding The instructions from your ISP tell you how to set up your PC for Internet access Because you are now using the Router to share Internet access among several computers you will use the setup information to configure the Router instead of your PC You only need to configure the Router once using the first computer you set up 1 Open your web browser It is all right if you get an error message at this point Continue following these directions Enter http 192 168 1 1
85. nal computer is not the cause of the problem e If you do NOT get a reply there may be a problem with the connection Try the ping command from a different computer to verify that your orig inal computer is not the cause of the problem 3 am not getting an IP address on the WAN with my Internet connection A Refer to Problem 2 I want to test my Internet connection to verify that you have connectivity B If you need to register the MAC address of your Ethernet adapter with your ISP please see Appendix F Finding the MAC address and IP Address for Your Ethernet Adapter If you need to clone the MAC address of your Ethernet adapter onto the Router see the MAC Address Clone section of Chapter 6 The Cable DSL VPN Router s Web based Utility for details C Make sure you are using the right WAN settings Contact your ISP to see if your WAN connection type is DHCP Static IP Address or PPPoE com monly used by DSL consumers Please refer to the Setup section of Chapter 6 The Cable DSL VPN Router s Web based Utility for details on WAN settings D Make sure you have the right cable Check to see if the WAN column has a solidly lit Link LED E Make sure the cable connecting from your cable or DSL modem is con nected to the Router s WAN port Verify that the Status page of the Router s web interface shows a valid IP address from your ISP 79 80 Instant Broadband Series F Turn off the computer
86. net through a Eee me ET EP DSL line check with your ISP to Sige Sees see if they use PPPoE If they do Figure 9 5 you will have to enable it as shown in Figure 9 5 User Name and Password Enter the User Name and Password provided by your ISP Connect on Demand and Max Idle Time You can configure the Router to cut your connection with your ISP after a specified period of time Max Idle Time If you have been disconnected due to inactivity Connect on Demand enables the Router to automatically re establish your connection as soon as you attempt to access the Internet again If you wish to activate Connect on Demand click the radio button If you want your Internet connection to remain on at all times enter 0 in the Max Idle Time field Otherwise enter the number of minutes you want to have elapsed before your Internet access disconnects Keep Alive Option and Redial Period This option keeps your PPPoE enabled Internet access connected indefinitely even when it sits idle To use this option click the radio button next to Keep Alive The default Redial Period is 30 seconds Important For DSL users if you need to enable PPPoE support choose PPPoE If you do enable PPPoE remember to remove any PPPoE applications that are already installed on any of your PCs To apply any of the settings you change on a page click the Apply button To cancel any values you ve entered on any page click the Cancel button Continue t
87. nloaded at the same time POP3 uses the SMTP messaging protocol e NNTP Network News Transfer Protocol The protocol used to connect to Usenet groups on the Internet Usenet newsreaders support the NNTP pro tocol e SNMP Simple Network Management Protocol A widely used network monitoring and control protocol Data is passed from SNMP agents which are hardware and or software processes reporting activity in each network device hub router bridge etc to the workstation console used to oversee the network The agents return information contained in a MIB Management Information Base which is a data structure that defines what is obtainable from the device and what can be controlled turned off on etc You must check the Enable box to enable the applications you have defined To add a server using UPnP Forwarding 1 Enter the name of the application in the appropriate Application Name field 2 Next to the name of the application enter the number of the external port used by the server in the Ext Port column Check with the Internet appli cation software documentation for more information 3 On the same line select the protocol UDP or TCP 4 Enter the number of the internal port used by the server in the Int Port col umn Check with the Internet application software documentation for more information FEtherFast Cable DSL Routers 5 Enter the IP address of the server that you want the Internet users to be ab
88. nt Broadband Series The WAN Indicators Link Green The Link LED lights up when a successful connec tion is made between the Router and your cable or DSL modem or network Act Green The Act LED flickers when the Router is sending or receiving data over the WAN port to the Internet Diag Red The Diag LED lights up when the Router goes through its self diagnosis mode during every boot up It will turn off upon successful completion of the diagnosis If this LED stays on for an abnormally long period of time see Appendix A Troubleshooting The Reset Button The Reset button can be used in one of two ways 1 If the Router is having problems connecting to the Internet press the Reset button for just a moment with a paper clip or a pencil tip This clears up any jammed connections and is similar to pressing the Reset button on your PC to reboot it 2 If you are experiencing extreme problems with the Router and have tried all other troubleshooting measures press the Reset Button and hold it down until the red Diag LED on the front panel turns on and off completely This will restore factory defaults and clear all of the Router s settings includ ing settings such as IP addresses or a new password The Reset Button is located on the front panel of the 4 Port Router and the rear panels of the 3 Port Router and the 1 Port Router Proceed to Chapter 5 Connect the Router Chapter 3 Getting to Know the
89. nternet It is LLE ris CETTE ENT A E a TCP IP protocol that defines the mes sage format and the message transfer agent MTA which amp stores and forwards the mail Figure 9 18 DNS Domain Name System The way that Internet domain names are located and translated into IP addresses A domain name is a meaningful and easy to remember handle for an Internet address TFTP Trivial File Transfer Protocol A version of the TCP IP FTP proto col that has no directory or password capability Finger A UNIX command widely used on the Internet to find out informa tion about a particular user such as a telephone number whether the user is currently logged on and the last time the user was logged on The person being fingered must have placed his or her profile on the system in order for the information to be available Fingering requires entering the full user domain address 67 68 Instant Broadband Series HTTP HyperText Transport Protocol The communications protocol used to connect to servers on the World Wide Web Its primary function is to establish a connection with a web server and transmit HTML pages to the client web browser e POP3 Post Office Protocol 3 A standard mail server commonly used on the Internet It provides a message store that holds incoming e mail until users log on and download it POP3 is a simple system with little selectivi ty All pending messages and attachments are dow
90. nternet Access EtherFast Cable DSL Routers Package Contents for the 1 Port Router BEFSR11 P ex 7 Fast Siir Cabia Tay lower a a Figure 1 2 One EtherFast 1 Port Cable DSL Router e One Setup Wizard CD ROM with User Guide Included e One Power Adapter One Fast Start Guide e One Registration Card not shown Minimum Requirements e One Windows PC equipped with e TCP IP Protocol e Internet Explorer 4 0 or Netscape Navigator 4 7 for web based configuration a CD ROM Drive and e an Ethernet Adapter with a UTP CAT 5 Network Cable e Cable or DSL Modem with Ethernet Connection and Internet Access Instant Broadband Series Package Contents for the 3 Port Router BEFSRU31 last Stary Cale Ponty im Figure 1 3 e One EtherFast Cable DSL Router with USB Port amp 3 Port Switch e One Setup Wizard CD ROM with User Guide Included e One USB Cable e One 3 5 Floppy Disk for USB Setup e One Power Adapter e One Fast Start Guide e One Registration Card not shown Minimum Requirements e Internet Explorer 4 0 or Higher 5 5 Recommended or Netscape Navigator 4 7 or Higher e TCP IP Protocol Ethernet Adapter and Ethernet Cable UTP CAT 5 with RJ 45 connectors per PC e One External Cable or DSL Modem with Ethernet Port and Ethernet Cable UTP CAT 5 with RJ 45 connectors An Introduction to LANs and WANs Simply put a router is a network device that connects two networks
91. nts such as DSL or cable modems when only one TCP IP address is provided by the ISP The user may have many private addresses behind this single address provided by the ISP Does the Router support any operating system other than Windows 95 Windows 98 Windows 2000 Windows NT or Windows XP Yes but Linksys does not at this time provide technical support for setup configuration or troubleshoot ing of any non Windows operating systems EtherFast Cable DSL Routers Does the Router support ICQ send file Yes with the following fix click ICQ menu gt preference gt connections tab gt and check I am behind a fire wall or proxy Then set the firewall time out to 80 seconds in the firewall set ting The Internet user can then send a file to a user behind the Router set up an Unreal Tournament Server but others on the LAN cannot join What do I need to do If you have a dedicated Unreal Tournament server running you need to create a static IP for each of the LAN computers and forward ports 7777 7778 7779 7780 7781 and 27900 to the IP address of the server You can also use a port forwarding range of 7777 27900 If you want to use the UT Server Admin forward another port 8080 usually works well but is used for remote admin You may have to disable this and then in the UWeb WebServer section of the server ini file set the ListenPort to 8080 to match the mapped port above and ServerName to the IP assigned to the Rou
92. o identify its loca tion or address on the network This applies to both the WAN and LAN con nections There are two ways of assigning an IP address to your network devices Static IP Addresses A static IP address is a fixed IP address that you assign manually to a PC or other device on the network Since a static IP address remains valid until you disable it static IP addressing ensures that the device assigned it will always have that same IP address until you change it Static IP addresses are com monly used with network devices such as server PCs or print servers Note Since the Router is a device that connects two networks it needs two IP addresses one for the LAN side and one for the WAN side In this User Guide you ll see references to the WAN IP address and the LAN IP address Since the Router has firewall security NAT the only IP address that can be seen from the Internet for your network is the Router s WAN IP address However even this WAN IP address for the Router can be blocked so that the Router and network seem invisible to the Internet see the Blocking WAN Requests description under IP Filtering in Chapter 9 The Cable DSL Router s Web based Utility Instant Broadband Series If you use the Router to share your cable or DSL Internet connection contact your ISP to find out if they have assigned a static IP address to your account If so you will need that static IP a
93. o not have any proxy settings and that the browser you use is set to connect directly to the LAN For Microsoft Internet Explorer 5 0 or higher Click Start Settings and Control Panel Double click Internet Options Click the Connections tab Click the LAN settings button and remove anything that is checked Click the OK button to go back to the previous screen Click the option Never dial a connection This will remove any dial up pop ups for PPPoE users mIa For Netscape 4 7 or higher A Start Netscape Navigator and click Edit Preferences Advanced and Proxies B Make sure you have Direct connection to the Internet selected on this screen C Close all the windows to finish 11 To start over need to set the Router to factory default Hold the Reset button for up to 30 seconds and then release it This will return the password forwarding and other settings on the Router to the factory default settings In other words the Router will revert to its original factory configuration 12 need to upgrade the firmware In order to upgrade the firmware with the latest features you need to go to the Linksys website and download the latest firmware at www linksys com Follow these steps A Go to the Linksys website at http www linksys com and download the latest firmware B To upgrade the firmware follow the steps in the Help section found in Chapter 9 The Cable DSL Router s Web based Utility
94. o the Password section FtherFast Cable DSL Routers Static IP L Lies wl be ably bo ee the router s date i chergar FP peu ray bai cree co ee uU SETUP QE ip eee CP i ere ui Lire ibe she Mak MAN Candas Tops ele Herd Coe ypt ps mjt ih n Space WA IF Adrianu 5 E i ert sm Fr pa a Bois Casa ay iiinn 1 k Lae ea 1 EE sh E ah E Figure 9 6 If you are required to use a permanent IP address then select Static IP as shown in Figure 9 6 Specify WAN IP Address This is the IP address that the Router has when seen from the WAN or the Internet Your ISP will provide you with the IP Address you need to specify here Subnet Mask This is the Router s Subnet Mask as seen by external users on the Internet including your ISP Your ISP will provide you with the Subnet Mask Default Gateway Address Your ISP will provide you with the Default Gateway Address DNS Required Your ISP will provide you with at least one DNS Domain Name System Server IP Address To apply any of the settings you change on a page click the Apply button To cancel any values you ve entered on any page click the Cancel button Continue to the Password section 51 52 Instant Broadband Series PPTP Point to Point Tunneling Protocol PPTP shown in Figure 9 7 is a service that applies to connections in Europe only Specify WAN IP Address This is the bette a ae IP address that the WE
95. ogramming interface for applications at the session layer layer 5 NetBIOS can ride over NetBEUI its native transport which is not routable or over TCP IP and IPX SPX which are routable protocols NetBIOS computers are identified by a unique 15 character name and Windows machines NetBIOS machines periodically broadcast their names over the net work so that Network Neighborhood can catalog them For TCP IP networks NetBIOS names are turned into IP addresses via manual configuration in an LMHOSTS file or a WINS server There are two NetBIOS modes The Datagram mode is the fastest mode but does not guarantee delivery It uses a self contained packet with send and receive name usually limited to 512 bytes If the recipient device is not listen ing for messages the datagram is lost The Session mode establishes a connec tion until broken It guarantees delivery of messages up to 64KB long Network A system that transmits any combination of voice video and or data between users Network Mask also known as the Subnet Mask NIC Network Interface Card A board installed in a computer system usual ly a PC to provide network communication capabilities to and from that com puter system Also called an adapter Notebook PC A notebook computer is a battery powered personal comput er generally smaller than a briefcase that can easily be transported and conve niently used in temporary spaces such as on airplanes in li
96. on may look slightly different than what appears on your screen AOL Broadband via Cable De git Mes Poe Joor Len 1 Open your web browser Enter http 192 168 1 1 in the web gt aa Geen ur browser s Address field as shown in Pas WL Bi i gt l Figure G 1 and press the Enter key Figure G1 2 A password request page shown in Figure G 2 will appear Windows XP users will see a Connect to 192 168 1 1 window slightly different from that shown Leave the User Name field blank and enter admin in the Password field Then click the OK button Entar etek Password O x Fikiria hyp your voi nama dre pci Sie 121581 1 Faan Link ess BEPSPU SEPSA AE PERU Lhe Haz wa ES PO gaa thin garmad imya papam Est comen Figure G 2 3 From the KESE p Setup screen sssi that appears meee shown in Figure G 3 select Obtain an IP automat ically from the WAN Connection Type drop down menu Then click the Security tab 4 Select Enable for AOL Parental Controls from the Security tab shown in Figure G 4 and click the OK button on the screen that appears Enabling this will disable all options under the Advanced tab except MAC Address cloning Then click the OK button to save these settings Click the X button on the top right side of the win dow to close it Spin kh Es a 2 Le mii items er gt ESC RTE m m mi Tarai Figure G3 BF Hm a
97. ons FCC Cass B CE Mark Qperating Temperature 0 C to 40 C 32 F to 104 F Storage Terrperature 20 C to 70 C 4 F to 158 F Operating Humidity 10 to 85 Non condensing Storage Humidity 5 to 90 Non condensing 120 EtherFast Cable DSL Routers Appendix J 3 Port Router Specifications Model Nurrber Standards Protocol Ports LAN VAN Speed LAN Ethernet MAN Ethernet USB Cabling Type 10BaseT 100BaseTX USB Topology LED Indicators BEFSRU31 IEEE 802 3 10BaseT IEEE 802 3u LOOBaseTX USB Specification 1 0 amp 1 1 CSMAYCD Three 10 100 RJ 45 Switched ports and shared uplink One USB port Qe 10Base T Ethemet RJ 45 port for the cable or DSL modem 10 100Mbps 10Mbps Up to 12Mbps UTP Category 3 or better UTP Category 5 or better Standard USB cable Star Power Link Act Full Col 100 Link Act Diag USB 3 Port Environmental Specifications Dimensions Unit Weight Power Input Certifications 7 31 x 6 16 x 1 88 186 nm x 154 nm x 48 mm 13 4 oz 0 42 kg External SVACG 1 Anp FCC Cass B CE Mark Qperating Temperature 0 C to 40 C 32 F to 104 F Storage Terrperature Qperating Humidity Storage Humidity 20 C to 70 C 4 F to 158 F 10 to 85 Non condensing 5 to 90 Non condensing 121 122 Instant Broadband Series Appendix K V arranty Infomation BE SURE TO HAVE YOUR PROOF OF PURCHASE AND A BARCODE FROM THE PRODUCT S PACKAGIN
98. or digital data STP Shielded Twisted Pair Telephone wire that is wrapped in a metal sheath to eliminate external interference Subnet Mask The method used for splitting IP networks into a series of sub groups or subnets The mask is a binary pattern that is matched up with the IP address to turn part of the host ID address field into a field for subnets Swapping Replacing one segment of a program in memory with another and restoring it back to the original when required Switch 1 A data switch connects computing devices to host computers allow ing a large number of devices to share a limited number of ports 2 A device for making breaking or changing the connections in an electrical circuit TCP Transmission Control Protocol A method protocol used along with the Internet Protocol Internet Protocol to send data in the form of message units between computers over the Internet While IP takes care of handling the actual delivery of the data TCP takes care of keeping track of the individual units of data called packets that a message is divided into for efficient routing through the Internet EtherFast Cable DSL Routers TCP IP Transmission 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 private network either an intranet or an extranet When you are set up with direct access to the Internet yo
99. or network Green The Act LED flickers when the Router is sending or receiving data over the WAN port Red The Diag LED lights up when the Router goes through its self diagnostic mode It will turn off upon successful completion of the diagnosis If this LED stays on for an abnormally long period of time see Appendix A Troubleshooting Proceed to Chapter 5 Connect the Router 13 Instant Broadband Series Chapter 4 Getting to Know the 3 Port EtherFast Cable DSL Router Figure 4 1 Ports 1 3 These three LAN ports connect to your PCs hubs switches print servers or any other devices with an Ethernet port Uplink The Uplink port connects to another hub or switch for port expansion when you run out of open ports for your network devices Since the Uplink port and the standard port right next to it share internal wiring you can only use one of the two ports at a time WAN The WAN Wide Area Network port is where you connect your cable or DSL modem through an Ethernet cable Your modem connection will not work from any other port Power The Power port is where you will connect the power adapter USB The USB port Type B slave can connect to a USB ready PC or a USB hub This allows you to enjoy an immediate plug and play connection with out even installing an Ethernet adapter for your PC To work with USB ports your PC must be running Windows 98 2000 Millennium or XP Details on the Rese
100. outing B pi pe e pei tri beia GA et ree ee l 2 O LED ec on ee ee LiLeHeve om 2 Tr TEL aki ee a lens j pab Le gag 18 ee Me nw Scouts a funcline propady if yoi haaa net mo SES Shee STATIC fare ROUTING eee i 2j eit Freie ery Dermy Daaima aa AH m Li tates Hoek DT gt F R F Brisk grisa LT E En 4 FEO Soani Toke mps Caaced Figure 9 21 If the Router is connected to more than one network it may be necessary to set up a static route between them A static route is a pre determined pathway that network information must travel to reach a specific host or network From the Static Routing tab as shown in Figure 9 21 click the Show Routing Table but ton to view the current static routing configuration To create a static route entry 1 Select a Static Route Entry from the drop down list The Router supports up to 20 static route entries To delete a Static Routing entry select an entry and click the Delete this entry button 71 Instant Broadband Series 2 Enter the following data to create a new static route Destination LAN IP The Destination LAN IP is the address of the remote network or host to which you want to assign a static route Enter the IP address of the host for which you wish to create a static route here If you are building a route to an entire network be sure that the network por tion of the IP address is set to 0 For example the Router s s
101. pe ras EE Router has when m seen from the WAN or the Scene d gt Cora ahmad rsa lie iira Se Ses Gba perte T ec Internet Your ISP bay c ur will provide you with the IP Address you need to specify TON here Subnet Mask This is the Router s Subnet Mask as seen by external users on the Internet including your ISP Your ISP will provide you with the Subnet Mask Default Gateway Address Your ISP will provide you with the Default Gateway Address Connect on Demand and Max Idle Time You can configure the Router to cut your connection with your ISP after a specified period of time Max Idle Time If you have been disconnected due to inactivity Connect on Demand enables the Router to automatically re establish your connection as soon as you attempt to access the Internet again If you wish to activate Connect on Demand click the radio button If you want your Internet connection to remain on at all times enter 0 in the Max Idle Time field Otherwise enter the number of minutes you want to have elapsed before your Internet access disconnects Keep Alive Option and Redial Period This option keeps your PPPoE enabled Internet access connected indefinitely even when it sits idle To use this option click the radio button next to Keep Alive The default Redial Period is 30 seconds To apply any of the settings you change on a page click the Apply button To cancel any values you ve entered on any p
102. r Check with your browser documentation and make sure that your browser is set to connect directly and that any dial up is disabled Make sure that your browser is set to connect directly and that any dial up is dis abled For Internet Explorer click Tools Internet Options and then the Connection tab Make sure that Internet Explorer is set to Never dial a con nection For Netscape Navigator click Edit Preferences Advanced and Proxy Make sure that Netscape Navigator is set to Direct connection to the Internet What is DMZ Hosting Demilitarized Zone DMZ allows one IP address com puter to be exposed to the Internet Some applications require multiple TCP IP ports to be open It is recommended that you set your computer with a static IP if you want to use DMZ Hosting To get the LAN IP address see Appendix F Finding the MAC Address and IP Address for Your Ethernet Adapter If DMZ Hosting is used does the exposed user share the public IP with the Router No EtherFast Cable DSL Routers Does the Router pass PPTP packets or actively route PPTP sessions The Router allows PPTP packets to pass through Is the Router cross platform compatible Any platform that supports Ethernet and TCP IP is compatible with the Router How many ports can be simultaneously forwarded Theoretically the Router can establish 520 sessions at the same time but you can only forward 10 ranges of ports Does the Router replace a moden Is th
103. r shipping and handling charges IN NO EVENT SHALL LINKSYS S LIABILITY EXCEED THE PRICE PAID FOR THE PROD UCT FROM DIRECT INDIRECT SPECIAL INCIDENTAL OR CONSEQUENTIAL DAM AGES RESULTING FROM THE USE OF THE PRODUCT ITS ACCOMPANYING SOFT WARE OR ITS DOCUMENTATION LINKSYS OFFERS NO REFUNDS FOR ITS PROD UCTS Linksys makes no warranty or representation expressed implied or statutory with respect to its products or the contents or use of this documentation and all accom panying software and specifically disclaims its quality performance merchantability or fitness for any particular purpose Linksys reserves the right to revise or update its prod ucts software or documentation without obligation to notify any individual or entity Please direct all inquiries to Linksys P O Box 18558 Irvine CA 92623 FCC STATEMENT The Instant Broadband EtherFast Cable DSL Router has been tested and complies with the specifications for a Class B digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio fre quency energy and if not installed and used according to the instructions may cause harmful interference to radio communications However there is no guarantee that inter ference will not occur in a particular installation If this equipment does cause harmful interference
104. ress es of the DNS currently used by the Router Multiple DNS IP settings are common In most cases the first available DNS entry is used DHCP Release Click the DHCP Release button to release the current IP address of the device connected to the Router s WAN port e DHCP Renew Click the DHCP Renew button to replace the current IP address of the device connected to the Router s WAN port with a new IP address DHCP Clients Table Click the DHCP Clients Table button to view the list of PCs that were given IP addresses by the Router DHCP 56 Figure 9 11 A Dynamic Host Configuration Protocol DHCP server automatically 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 Router enabled as a DHCP server EtherFast Cable DSL Routers DHCP Server DHCP is already enabled by factory default If you already have a DHCP server on your network set the Router s DHCP option to Disable Click the Apply button If you disable DHCP remember to assign a Static IP address to the Router e Starting IP Address Enter a value for the DHCP server to start with when issuing IP addresses This value must be 192 168 1 2 or greater because the default IP address for the Router is 192 168 1 1 Number of DHCP Users Optional Enter the maximum number of PCs that you want the DHCP server to assign IP addresses to This number can not be greater
105. ries 7 need to set up online game hosting or use other Intemet applications If you want to play online games or use Internet applications most will work without doing any port forwarding or DMZ hosting There may be cases when you want to host an online game or Internet application This would require you to set up the Router to deliver incoming packets or data to a specific com puter This also applies to the Internet applications you are using The best way to get the information on what port services to use is to go to the website of the online game or application you want to use Follow these steps to set up online game hosting or use a certain Internet application A Access the Router s web interface by going to http 192 168 1 1 or the IP address of the Router Go to the Advanced gt Forwarding tab B Enter any name you want to use for the Customized Application C Enter the Ext Port range of the service you are using For example if you want to host Unreal Tournament UT you would enter the range 7777 to 27900 D Check the protocol you will be using TCP and or UDP 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 Ethernet adapter IP address is 192 168 1 100 you would enter 100 in the field provided Check Appendix F Finding the MAC Address and IP Address for Your Ethernet Adapter for details on getting an IP address F Check the Enab
106. rmation FtherFast Cable DSL Routers Chapter 9 The Cable DSL Router s V eb based Utility For your convenience use the Router s web 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 with an Ethernet cable to the Router or a computer con nected with a USB cable to the USB port of the 3 Port Router For a basic network setup most users only have to use the following screens of the utility e Setup Enter the settings provided by your ISP e Password The Router s default password is admin To secure the Router change the Password from its default The Status DHCP Log Security and Help tabs are also available for basic setup of the Router For advanced setup of the Router click the Advanced tab to access these screens IP Filtering Port Range Forwarding Dynamic Routing Static Routing DMZ Host and MAC Address Clone Quick and Easy Router Administration To access the web based utility of the Router launch Internet Explorer or Netscape Navigator and enter the Router s default IP address 192 168 1 1 in the Address field as shown in Figure 9 1 and press Enter Figure 9 1 47 Instant Broadband Series A password request page shown in Figure 9 2 will pop up Windows XP users will see a Connect to 192 168 1 1 window shown in Figure 9 3
107. rt Environmental Specifications Appendix J 3 Port Router Specifications 3 Port Environmental Specifications Appendix K Warranty Information Appendix L Contact Information 110 111 112 116 116 118 119 119 120 120 121 121 122 123 EtherFast Cable DSL Routers Chapter 1 Introduction The Linksys EtherFast Cable DSL Router Congratulations on the purchase of the EtherFast Cable DSL Router from Linksys The Router is the perfect solution for connecting a network of PCs to a high speed broadband Internet connection and to an Ethernet network back bone Configurable as a DHCP server for your network the Router is the only visible network device on the Internet The Router also serves as your Internet NAT firewall protecting your network s PCs from being accessed by external users All incoming data packets are monitored and filtered The Router can also be configured to block internal users access to the Internet with IP filter ing as well as to play Internet games videoconference and much more Plus the Router supports Universal Plug and Play UPnP which allows Windows XP to automatically configure the Router for various Internet applications such as videoconferencing and gaming making the Router a snap to use Now all of your PCs can enjoy lightning fast broadband Internet connections and share internal network data Link them all together and network faster than you ever thought possible e
108. s LAN Four 10 100 RJ 45 switched ports and shared uplink VAN Qe 10Base T Ethemet RJ 45 port for the cable or DSL modem Speed LAN 10 100Mbps VAN 10Mbps Cabling Type 10BaseT UTP Category 3 or better 100BaseTX UTP Category 5 or better Topology Star LED Indicators Power LAN Link Act Full Col 100 VAN Link Act Diag 4 Port Environmental Specifications Dimensions 7 31 x 6 16 x 1 88 186 mm x 154 mmx 48 mm Unit Weight 13 4 oz 0 42 kg Power Input External SVAG 1 Amp Certifications FCC Cass B CE Mark Qperating Temperature 0 C to 40 C 32 F to 104 F Storage Terrperature 20 C to 70 C 4 F to 158 F Qperating Humidity 10 to 85 Non condensing Storage Humidity 5 to 90 Non condensing 119 Instant Broadband Series Appendix I 1 Port Router Specifications Model Number BEFSR1I1 ver 2 Standards IEEE 802 3 10BaseT IEEE 802 3u 100BaseTX Protocol CMYOD Ports LAN Me 10BaseT 100BaseTX RJ 45 port WAN CQnel10BaseT Broadband Uplink port Speed VAN 10Mbps LOBaseT Ethernet LAN 10Mbps LOBaseT Ethemet or 100Mbps 100BaseTX Fast Ethernet Cabling Type 10BaseT UTP Category 3 or better 100BaseT UIP Category 5 or better Topology Star LED Indicators Power LAN Link Act Full CGol 100 VAN Link Act Diag 1 Port Environmental Specifications Dimensions 7 31 x 6 16 x 1 88 186 mm x 154 nm x 48 mm Unit Weight 12 6 oz 0 35 kg Power Input External 7 5V DG 700 mA Certificati
109. sed on the current conditions of the communications circuits For example it can adjust for overloaded traffic or failing lines and is much more flexible than static routing which uses a fixed forwarding path 95 96 Instant Broadband Series Ethernet IEEE standard network protocol that specifies how data is placed on and retrieved from a common transmission medium Has a transfer rate of 10 Mbps Forms the underlying transport vehicle used by several upper level pro tocols including TCP IP and XNS Fast Ethernet A 100 Mbps technology based on the 10Base T Ethernet CSMA CD network access method Firewall A firewall is a set of related programs located at a network gateway server that protects the resources of a network from users from other networks The term also implies the security policy that is used with the programs An enterprise with an intranet that allows its workers access to the wider Internet installs a firewall to prevent outsiders from accessing its own private data resources and for controlling what outside resources to which its own users have access Basically a firewall working closely with a router examines each network packet to determine whether to forward it toward its destination Firmware Programming that is inserted into programmable read only memo ry thus becoming a permanent part of a computing device Fragmentation Breaking a packet into smaller units when transmitting over a networ
110. serves two purposes If the LED is continuously lit the Router is successfully connected to a device through the corresponding RJ 45 port 1 2 or 3 If the LED flickers then that port is sending or receiving data to and from the network When the Uplink port is in use then Port 3 will be lit Green The Full Col LED also serves two purposes If this LED is continuously lit the connection made through the corresponding port is running in Full Duplex mode If the LED is flickering the connection is experiencing collisions Infrequent collisions are normal If this LED flickers too often there may be a problem with your connection See Appendix A Troubleshooting if you have problems Orange The 100 LED lights up when a successful 100 Mbps connection is made through the corresponding port If this LED does not light up then your connection speed is 10 Mbps The USB LED lights up when the USB port is successfully connected to a USB ready PC or USB hub FEtherFast Cable DSL Routers The WAN Indicators Link Act Diag Green The Link LED lights up when a successful connec tion is made between the Router and your broadband device or network Green The Act LED flickers when the Router is sending or receiving data over the broadband WAN port Red The Diag LED lights up when the Router goes through its self diagnostic mode It will turn off upon successful completion of the diagnosis If this LED stays on for
111. shown in Figure 8 4 B Click the Apply button Ague 8 4 to save the setting or click the Cancel button to clear the setting and start over When you are finished then proceed to step 5 Static IP Address or Specify an IP Address If your ISP says that you are EE connecting through a static or ee eet eat ha ss son fixed IP address from your ISP Ras ur perform these steps A Select Static IP as the WAN Connection Type as shown in Figure 8 5 bees me tthe k TER ee a Le f D B Enter the IP Address C Enter the Subnet Mask D Enter the Gateway Address ae E Enter the DNS in the 1 2 and or 3 fields You need to enter at least one DNS address E Click the Apply button to save the settings or click the Cancel button to clear the settings and start over When you are finished then proceed to step 5 FEtherFast Cable DSL Routers PPPoE If your DSL provider says that you are connecting through PPPoE or if you normally enter a user name and password to access the Internet perform these steps A Select PPPoE as the WAN Connection Type as shown in Figure 8 6 iep mire basis dura s Ces B Enter the User Name di hd C Enter the Password D Click the Apply button to save the settings or click the Cancel button to clear the settings and start over E When you are finished click the Status tab and then click the Connect button to start the connection Proceed to step
112. t Pori on Saleh or At Regolar Port ac Savion or Mab Figure 3 2 Important The chart in Figure 3 2 is for reference purposes only Every network is different If you do not make a connec tion to a hub or switch by using the settings above change the position of the Crossover Switch The 1 Port Router s Front Panel LEDs Figure 3 3 Power Green The Power LED lights up green when the Router is powered on Link Act Green The Link Act LED serves two purposes If the LED is continuously lit the Router is successfully connected to a device through the LAN port If the LED is flickering the Router is actively sending or receiving data through the LAN port EtherFast Cable DSL Routers Full Col 10 100 Green The Full Col LED also serves two purposes 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 may be a problem with your connection See Appendix A Troubleshooting if you encounter this problem Orange The 10 100 LED lights up when a successful 100 Mbps connection is made through the corresponding port If a connection is running at 10 Mbps the 10 100 LED will not light up The WAN Indicators Link Act Diag Green The Link LED lights up when a successful connec tion is made between the Router and your broadband device
113. t button are found in the Chapter 2 Getting to Know the 4 Port EtherFast Cable DSL Router The Reset Button EtherFast Cable DSL Routers USB Compatibility si Note USB ports do not work on PCs running Windows 95 or NT To use the USB port on the 3 Port Router you must have Windows 98 2000 Millennium or XP installed on your PC USB cannot run in a Windows 95 or NT environment Also your PC must have a USB port installed and enabled Some PCs may have a disabled USB port If your port doesn t seem to be working there may be jumpers on the motherboard or a menu option in the BIOS to enable a PC s USB port Other motherboards have USB interfaces but no ports You can purchase and install a USB ready card at your local computer store See your PC s user guide for instructions This USB icon shown in Figure 4 2 denotes the presence of a USB port or connector Figure 4 2 The 3 Port Router comes with a USB cable that has two different types of con nectors Type A the master connector is shaped like a rectangle and plugs into your PC s USB port Type B the slave connector resembles a square and con nects to the USB port on the rear panel of the Router Figure 4 3 15 Power Link Act Full Col 100 USB Instant Broadband Series The 3 Port Router s Front Panel LEDs Figure 4 4 Green The Power LED lights up green when the Router is powered on Green The Link Act LED
114. t has completed copying the driver files to your PC as shown in Figure 6 6 Click the Finish button to complete the USB driver installation Urby Efe ar Cables SL Rader eth LES Don TOS etch artes det my Figure 6 6 8 Windows will ask you if you want to restart your PC as shown in Figure 6 7 Click the Yes button so your new installation will take effect a i Te irigh sahing up pean ras Ham pou ani GRR your complet Dho yraa aard to ridged pou coin rue Figure 6 7 If it does not ask you to restart your computer click the Start button and select Shut Down Then select Restart and click the OK button 25 Instant Broadband Series 9 When your PC has finished restarting click the Start button and select Settings and Control Panel Double click Network Make sure that TCP IP is installed on your PC as shown on the screen in Figure 6 8 By default Windows 98 has TCP IP installed If TCP IP is not installed please go to Appendix D Installing the TCP IP Protocol for installation instruc tions Lankaster identification Acca orii em pe mp als E Dier Aca Herna Herai Leta LAN TODT T ar Puna Adee Pa cenpahie Piaci Haffi re nme m Prina Haai Logon Diri ka beacon Haba bai i aini aopen CERF i fe gmota po ene LE corte 10 hep lint ar mehan rete ER Figure 6 8 Your USB driver installation is now complete Go to Chapter 7 Configure the PCs
115. tained by looking up the domain name in the Uniform Resource Locator you request ed or in the e mail address you re sending a note to At the other end the recip ient can see the IP address of the Web page requestor or the e mail sender and can respond by sending another message using the IP address it received 97 98 Instant Broadband Series IPCONFIG A utility that provides for querying defining and managing IP addresses within a network A commonly used utility under Windows NT and 2000 for configuring networks with static IP addresses IPSec IPSec Internet Protocol Security is a developing standard for security at the network or packet processing layer of network communication A big advantage of IPSec is that security arrangements can be handled without requir ing changes to individual user computers IRQ Interrupt ReQuest A hardware interrupt on a PC There are 16 IRQ lines used to signal the CPU that a peripheral event has started or terminated Except for PCI devices two devices cannot use the same line ISP An ISP Internet service provider is a company that provides individuals and companies access to the Internet and other related services such as website building and virtual hosting LAN A local area network LAN is a group of computers and associated devices that share a common communications line and typically share the resources of a single processor or server within a small geographic area for
116. tandard IP address is 192 168 1 1 Based on this address the address of the routed net work is 192 168 1 with the last digit determining the Router s place on the network Therefore you would enter the IP address 192 168 1 0 if you want ed to route to the Router s entire network rather than just to the Router Subnet Mask The Subnet Mask also known as the Network Mask deter mines which portion of an IP address is the network portion and which portion is the host portion Take for example a network in which the Subnet Mask is 255 255 255 0 This determines by using the values 255 that the first three numbers of a network IP address identify this particular network while the last digit from 1 to 254 identifies the specific host Default Gateway This IP address should be the IP address of the gateway device that allows for contact between the Router and the remote network or host Hop Count This determines the maximum number of steps between net work nodes that data packets will travel A node is any device on the net work such as PCs print servers routers etc interface Select LAN or WAN depending on the location of the static route s final destination 3 When finished making your changes on this tab click the Apply button to save these changes or click the Cancel button to undo your changes 72 FtherFast Cable DSL Routers al Dizi Be pi Des Four Dh D bimi e o NS en Gien ie D Ar di Aii PE
117. ter from your ISP Gan multiple gamers on the LAN get on one game server and play simultaneously with just one public IP address It depends on which network game or what kind of game server you are using For example Unreal Tournament supports multi login with one public IP How do get Half Life Team Fortress to work with the Router The default client port for Half Life is 27005 The computers on your LAN need to have clientport 2700x added to the HL shortcut command line the x would be 6 7 8 and on up This lets multiple computers connect to the same server One problem Version 1 0 1 6 won t let multiple computers with the same CD key connect at the same time even if on the same LAN not a problem with 1 0 1 3 As far as hosting games the HL server does not need to be in the DMZ Just forward port 27015 to the local IP address of the server computer How can I block corrupted FTP downloads If you are experiencing corrupted files when you download a file with your FTP client try using another FTP program The web page hangs downloads are corrupt or nothing but junk characters are being displayed on the screen What do need to do Force your Ethernet adapter to 10Mbps or half duplex mode and turn off the Auto negotiate feature of your Ethernet adapter as a temporary measure Please look at the Network Control Panel in your Ethernet adapter s Advanced Properties tab Make sure that your proxy setting is disable
118. the Router s web based utility You will configure the Router using the settings provided by your ISP When you re finished with the basic steps then you are ready to connect to the Internet After the PC s can access the Internet through the Router you can alter the Router s settings further for example you can adjust security features and other settings to enable Note To learn about additional security online gaming features ZoneAlarm Pro and PC cillin each sold separately see Chapter 9 The Cable DSL Router s Web based Utility Notebook with Ethernet Adapter Cable or DSL Modem Cable DSL Router k PC with Ethernet Adapter E Figure 1 4 Instant Broadband Series Chapter 2 Getting to Know the 4 Port EtherFast Gable DSL Router The 4 Port Router s Rear Panel The Router s ports where network cables are connected are located on the rear panel of the Router as shown in Figure 2 1 WAN Ports 1 4 Uplink Power Poser Figure 2 1 The WAN Wide Area Network port is where you connect your cable or DSL modem through an Ethernet cable Your modem connection will not work from any other port These four LAN Local Area Network ports con nect to network devices such as PCs print servers and remote hard drives If Port 1 is being used the Uplink port will not work because these two shared ports have internally shared wiring The Uplink port is used to expan
119. the net work 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 network is quiet and two devices access the line at exactly the same time their signals collide When the collision is detected they both back off and each waits a random amount of time before retrying Daisy Chain Connected in series one after the other Transmitted signals go to the first device then to the second and so on Database A database is a collection of data that is organized so that its con tents can easily be accessed managed and updated Data Packet One frame in a packet switched message Most data communi cations is based on dividing the transmitted message into packets For example an Ethernet packet can be from 64 to 1518 bytes in length Default Gateway The routing device used to forward all traffic that is not addressed to a station within the local subnet DHCP Dynamic Host Configuration Protocol A protocol that lets network administrators centrally manage and automate the assignment of Internet Protocol IP addresses in an organization s network Using the Internet s set of protocol TCP IP each machine that can connect to the Internet needs a unique IP address When an organization sets up its computer users with a connection to the Internet an IP address must be assigned to each machine Without DHCP the IP address must be entered manually at each
120. tton in the Internet Protocol TCP IP Properties win dow and click the OK button in the Local Area Connection Properties window e Restart the computer if asked For Windows XP The following instructions assume you are running Windows XP with the default interface If you are using the Classic interface where the icons and menus look like previous Windows versions please follow the instructions for Windows 2000 e Click Start and Control Panel e Click the Network and Internet Connections icon and then the Network Connections icon e Right click the Local Area Connection that is associated with the Ethernet adapter you are using and select the Properties option e In the This connection uses the following items box highlight Internet Protocol TCP IP and click the Properties button Make sure that Obtain an IP address automatically and Obtain DNS server address automatically are selected e Click the OK button in the Internet Protocol TCP IP Properties win dow and click the OK button in the Local Area Connection Properties window e Restart the computer if asked For Windows NT 4 0 e Click Start Settings and Control Panel Double click the Network icon e Click the Protocol tab and double click on TCP IP Protocol e When the window appears make sure you have selected the correct Adapter for your Ethernet adapter and set it for Obtain an IP address from a DHCP server e Click the OK button in the TCP IP Protocol
121. ur computer is provid ed with a copy of the TCP IP program just as every other computer that you may send messages to or get information from also has a copy of TCP IP TFTP Trivial File Transfer Protocol A version of the TCP IP FTP protocol that has no directory or password capability Throughput The amount of data moved successfully from one place to anoth er in a given time period Topology A network s topology is a logical characterization of how the devices on the network are connected and the distances between them The most com mon network devices include hubs switches routers and gateways Most large networks contain several levels of interconnection the most important of which include edge connections backbone connections and wide area connections TX Rate Transmission Rate UDP User Datagram Protocol A communications method protocol that offers a limited amount of service when messages are exchanged between com puters in a network that uses the Internet Protocol IP UDP is an alternative to the Transmission Control Protocol TCP and together with IP is sometimes referred to as UDP IP Like the Transmission Control Protocol UDP uses the Internet Protocol to actually get a data unit called a datagram from one com puter to another Unlike TCP however UDP does not provide the service of dividing a message into packets datagrams and reassembling it at the other end Specifically UDP doesn t provid
122. uter Chapter 6 Installing the BEFSRU31 s USB Port Drivers Installing the Windows 98 Driver Installing the Windows 2000 Driver Installing the Windows Millennium Driver Installing the Windows XP Driver IR R LR OO DDR h 11 11 12 14 14 15 16 18 18 19 21 22 22 27 31 33 EtherFast Cable DSL Routers Chapter 7 Configure the PCs Overview Configuring Windows 95 98 and Millennium PCs Configuring Windows 2000 PCs Configuring Windows XP PCs Chapter 8 Configure the Router Chapter 9 The Cable DSL Router s Web based Utility Overview Quick and Easy Router Administration Setup Password Status DHCP Log Security Help Advanced IP Filtering Port Range Forwarding Dynamic Routing Static Routing DMZ Host MAC Address Clone Appendix A Troubleshooting Common Problems and Solutions Frequently Asked Questions Appendix B Glossary Appendix C How to Ping Your ISP s E mail amp Web Addresses Appendix D Installing the TCP IP Protocol 75 75 88 92 105 108 Instant Broadband Series Appendix E Twisted Pair Cabling Crimping Your Own Network Cables Appendix F Finding the MAC Address and IP Address for Your Ethernet Adapter Appendix G Setting Up AOL Broadband Cable amp DSL AOL Broadband via Cable AOL Broadband via DSL Appendix H 4 Port Router Specifications 4 Port Environmental Specifications Appendix I 1 Port Router Specifications 1 Po
123. uters ee e j He ee ee l AE 2 CE Foe E 1 Lia STATUS tans Femeer hre BE EU EE Heim hereni ei mai Figure 9 10 Note The information provided and buttons available may vary depending on the Router s settings The Status tab shown in Figure 9 10 displays 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 only To make changes select the Setup tab e Host Name This field shows the name of the Router This entry is neces sary for some ISPs e Firmware Version This field shows the installed version and date of the firmware Version dates are slightly more accurate than version numbers e Login This indicates if you are using a dial up style connection like PPPoE RAS or PPTP For PPPoE RAS or PPTP only there is a Connect button to click if you are disconnected and want to re establish a connection e LAN These fields display the current IP Address and Subnet Mask of the Router as seen by users on your local area network The DHCP Server field 55 Instant Broadband Series shows the status of the Router s DHCP server function which is either enabled or disabled e WAN These fields display the WAN IP Address WAN Subnet Mask and WAN Default Gateway IP Address of the Router as seen by external users on the Internet The DNS Domain Name System IP Address fields show the IP add
124. vailable to AOL customers in the Unites States Only To apply any of the settings you change on a page click the Apply button To cancel any values you ve entered on any page click the Cancel button FEtherFast Cable DSL Routers en ME _ akir B jE y imm Den ten LA Lees HELP Figure 9 14 Under the Help tab shown in Figure 9 14 you ll find links to all of the Utility s internal support documentation including the application that upgrades the Router s firmware New firmware versions are posted at www linksys com and can be downloaded for free If the Router can access the Internet already there s no need to down load a newer firmware version unless that version has a new feature that you want to use Loading new firmware onto the Router does not enhance the speed or the quality of your connection speed See the IP Filtering section for directions on how to enable remote firmware upgrades 61 Instant Broadband Series To upgrade the Router s firmware i Note By upgrading the Router s firmware you may lose the Router s configuration settings 1 Select the Help tab see Figure 9 14 2 Click Upgrade Firmware to display a new window see Figure 9 15 als p De Cris Le be Q ja gmi jj e y do E COE O Upgrade Firmware Deas pert Bu in pee Est Figure 9 15 3 Click the Browse button to find the firmware upgrade file that you down loaded from the
125. vers under the control of one security database Dividing LANs into domains improves per formance and security Download To receive a file transmitted over a network In a communications session download means receive and upload means transmit Driver A workstation or server software module that provides an interface between a network interface card and the upper layer protocol software running in the computer it is designed for a specific NIC and is installed during the ini tial installation of a network compatible client or server operating system DSSS Direct Sequence Spread Spectrum DSSS generates a redundant bit pattern for each bit to be transmitted This bit pattern is called a chip or chip ping code The longer the chip the greater the probability that the original data can be recovered Even if one or more bits in the chip are damaged during trans mission statistical techniques embedded in the radio can recover the original data without the need for retransmission To an unintended receiver DSSS appears as low power wideband noise and is rejected ignored by most narrow band receivers Dynamic IP Address An IP address that is automatically assigned to a client station in a TCP IP network typically by a DHCP server Network devices that serve multiple users such as servers and printers are usually assigned static IP addresses Dynamic Routing The ability for a router to forward data via a different route ba
126. work B In The following network components are installed box select the TCP IP gt associated with your Ethernet adapter If you only have one Ethernet adapter installed you will only see one TCP IP line with no association to an Ethernet adapter Highlight it and click the Properties button C Inthe TCP IP properties window select the IP address tab and select Specify an IP address Enter a unique IP address that is not used by any other com puter on the network connected to the Router You can only use an IP address in the ranges 192 168 1 2 to 192 168 1 99 and 192 168 1 151 to 192 168 1 254 Make sure that each IP address is unique for each PC or net work device D Click the Gateway tab and in the New Gateway prompt enter 192 168 1 1 which is the default IP address of the Router Click the Add button to accept the entry E Click the DNS tab and make sure the DNS Enabled option is selected Enter the Host and Domain names e g John for Host and home for Domain Enter the DNS entry provided by your ISP If your ISP has not provided the DNS IP address contact your ISP to get that information or go to its website for the information FE Click the OK button in the TCP IP properties window and click Close or the OK button for the Network window G Restart the computer when asked 75 76 Instant Broadband Series For Windows 2000 A B QT m Click Start Settings and Control Panel Double click Network and
127. ws XP with the default interface If you are using the Classic interface where the icons and menus look like previous Windows versions please follow the instructions for Windows 2000 1 Click to the Network screen by clicking the Start button and then Control Panel From there click the Network and Internet Connections icon and then the Network Connections icon 2 Select the Local Area Connection icon for the applicable Ethernet adapter usually it is the first Local Area Connection listed Double click the Local Area Connection WE E Local Area Commection 39 Status General Support Lorean Si Connected Cooter 2 days DASE 16 Spesi 100 0 Mbps Arctvly Seni Fid EL Packets 25 054 25 300 Figure 7 6 3 The Local Area Connection Status screen will appear as shown in Figure 7 6 Click the Properties button 40 EtherFast Cable DSL Routers 4 Select Internet Protocol TCP IP as shown in Figure 7 7 and click the Properties button CRE TE ESS Lie Ep Ld Si E Te Fae Pacs dee D ONE ra lia ryan ce na eur mes Rat m dierent karan z h i arr Seen ery or bres bere ent Patel FRY irme L ana arl ee ee Papa Tha api ap rra rer ee B ee arean ae CRETE CET ESS a C Segue erase pur s g Lamm be wa Le tal Figure 7 7 5 Select Obtain an IP address automatically as shown in Figure 7 8 Once the new window appears click the OK button Click the OK butto

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