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1. need to set a static IP address on a computer You can assign a static IP address to a computer by performing the following steps For Windows 98 and Me 1 Click Start Settings and Control Panel Double click Network 2 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 3 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 computer on the network connected to the Gateway Make sure that each IP address is unique for each computer or network device 4 Click the Gateway tab and in the New Gateway prompt enter 192 168 1 1 which is the default IP address of the Gateway Click the Add button to accept the entry 5 Click the DNS tab and make sure the DNS Enabled option is selected Enter the Host and Domain names e g J ohn 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 6 Click the OK button in the TCP IP properties window and click Close or the OK button for the Network window 7 Restart the computer when asked For Windows 2000 1 Click Start
2. 20 to 90 Non Condensing 61 Appendix F Warranty Information LIMITED WARRANTY Linksys warrants to You that for a period of three years the Warranty Period your Linksys Product will be substantially free of defects in materials and workmanship under normal use Your exclusive remedy and Linksys entire liability under this warranty will be for Linksys at its option to repair or replace the Product or refund Your purchase price less any rebates This limited warranty extends only to the original purchaser If the Product proves defective during the Warranty Period call Linksys Technical Support in order to obtain a Return Authorization Number if applicable BE SURE TO HAVE YOUR PROOF OF PURCHASE ON HAND WHEN CALLING If You are requested to return the 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 You are responsible for shipping defective Products to Linksys Linksys pays for UPS Ground shipping from Linksys back to You only Customers located outside of the United States of America and Canada are responsible for all shipping and handling charges ALL IMPLIED WARRANTIES AND CONDITIONS OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE ARE LIMITED TO THE DURATION OF THE WARRANTY PERIOD ALL OTHER EXPRESS OR IMPLIED CONDITIONS REPRESENTATIONS AND WARRANTIES INCLUDING ANY IMPLIED
3. The ability of a networking device to receive and transmit data simultaneously Gateway A system that interconnects networks Half Duplex Data transmission that can occur in two directions over a single line but only one direction ata time Hardware The physical aspect of computers telecommunications and other information technology devices HTTP HyperText Transport Protocol The communications protocol used to connect to servers on the World Wide Web IEEE The Institute of Electrical and Electronics Engineers An independent institute that develops networking standards Infrastructure Currently installed computing and networking equipment Infrastructure Mode Configuration in which a wireless network is bridged to a wired network via an access point IP Internet Protocol A protocol used to send data over a network IP Address The address used to identify a computer or device on a network 57 IPCONFIG A Windows 2000 and XP utility that displays the IP address for a particular networking device IPSec Internet Protocol Security A VPN protocol used to implement secure exchange of packets at the IP layer ISM band Radio band used in wireless networking transmissions ISP Internet Service Provider A company that provides access to the Internet LAN Local Area Network The computers and networking products that make up the network in your home or office MAC Media Access Control Address The
4. Wireless G Cable Gateway Wireless V retoss Network G irae C Desde V reinss Network Nene SSD linksys_SES_2772 V reioss Channel V rehons Network Type Moced ha Currert Encryption WPA Der scr Figure 5 6 WPA Personal Security Enabled Dive of Osco Systema inc Wireless Figure 5 7 Wireless Security 24 Wireless G Cable Gateway WPA Personal To use WPA Personal select WPA Personal from the Security Mode drop down menu Select a method of encryption Then enter a Passphrase and a Key Renewal period e Encryption WPA offers you two encryption methods TKIP and AES with dynamic encryption keys Select the type of algorithm you want to use TKIP or AES e Passphrase Enter a Passphrase also called a WPA Shared Key of 8 32 characters Key Renewal Enter a Key Renewal timeout period which instructs the Gateway how often it should change the encryption keys When finished making your changes on this tab click the Save Settings button to save these changes or click the Cancel Changes button to undo your changes WPA2 Personal To use WPA2 Personal select WPA2 Personal from the Security Mode drop down menu Select a method of encryption Then enter a Passphrase and a Key Renewal period e Encryption Select the encryption method you want to use AES or TKIP AES e Passphrase Enter a Passphrase also called a WPA Shared Key of 8 32 characters e Key Renewal Enter a Key Renewal time
5. indicates the interval of the Delivery Traffic Indication Message DTIM A DTIM field is a countdown field informing clients of the next window for listening to broadcast and multicast messages When the Gateway has buffered broadcast or multicast messages for associated clients it sends the next DTIM with a DTIM Interval value Its clients hear the beacons and awaken to receive the broadcast and multicast messages Fragmentation Threshold This value should remain at its default setting of 2346 The range is 256 2346 bytes It specifies the maximum size for a packet before data is fragmented into multiple packets If you experience a high packet error rate you may slightly decrease the Fragmentation Threshold Setting the Fragmentation Threshold too low may result in poor network performance Only minor modifications of this value are recommended RTS Threshold This value should remain at its default setting of 2347 The range is 0 2347 bytes Should you encounter inconsistent data flow only minor modifications are recommended If a network packet is smaller than the preset RTS threshold size the RTS CTS mechanism will not be enabled The Gateway sends Request to Send RTS frames to a particular receiving station and negotiates the sending of a data frame After receiving an RTS the wireless station responds with a Clear to Send CTS frame to acknowledge the right to begin transmission Authentication Type The default is set to Open System o
6. Shared Secret Enter the Shared Secret key used by the Gateway and RADIUS server e Wireless Encryption Level An acronym for Wired Equivalent Privacy WEP is an encryption method used to Weceaberwtntont 125a Eypio 2 protect your wireless data communications WEP uses 64 bit or 128 bit keys to provide access control to your ae E network and encryption security for every data transmission To decode data transmissions all devices in a network must use an identical WEP key Higher encryption levels offer higher levels of security but due to the complexity of the encryption they may decrease network performance To enable WEP select 64 Bit Ma RMI Wireless WEP Key 53 so000000000000000000000000 Encryption or 128 Bit Encryption ann ESSSSSSETTTDESSSESSSOTETE e Default Key Select which WEP key 1 4 will be used when the Gateway sends data Make sure that the receiving device wireless client is using the same key Figure 5 12 RADIUS e Passphrase for Keys Instead of manually entering WEP keys you can enter a passphrase This passphrase is used to generate one or more WEP keys It is case sensitive and should not be longer than 32 alphanumeric characters This Passphrase function is compatible with Linksys wireless products only and cannot be used with Windows XP Zero Configuration If you want to communicate with non Linksys wireless products or Windows XP Zero Configuration make a note of the WEP key you want to use and enter i
7. To enable Activex filtering click Enabled e Filter Popup Windows When enabled the Gateway will attempt to block the browser popup windows Please note that not all popups may be blocked because of the various creation methods e Filter Multicast Multicasting allows for multiple transmissions to specific recipients at the same time If this multicasting is permitted the Gateway will allow IP multicast packets to be forwarded to the appropriate computers Select Enable to filter multicasting or Disable to disable this feature e Block Fragmented IP Packets Enable this feature to block any incoming or outgoing fragmented packets e PortScan Alert When enabled the Gateway will put entries into the security log when it detects port scans from the Internet Block WAN Requests Enable Block Anonymous Internet Requests and 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 difficult for outside users to work their way into your network This feature is enabled by default Uncheck the box to allow anonymous Internet requests When finished making your changes on this tab click the Save Settings button to save these changes or click the Cancel Changes button to undo your changes uring the Wireless G Cable Gateway A Guns of Caco Spi
8. WARRANTY OF NON INFRINGEMENT ARE DISCLAIMED Some jurisdictions do not allow limitations on how long an implied warranty lasts so the above limitation may not apply to You This warranty gives You specific legal rights and You may also have other rights which vary by jurisdiction This warranty does not apply if the Product a has been altered except by Linksys b has not been installed operated repaired or maintained in accordance with instructions supplied by Linksys or c has been subjected to abnormal physical or electrical stress misuse negligence or accident In addition due to the continual development of new techniques for intruding upon and attacking networks Linksys does not warrant that the Product will be free of vulnerability to intrusion or attack TO THE EXTENT NOT PROHIBITED BY LAW IN NO EVENT WILL LINKSYS BE LIABLE FOR ANY LOST DATA REVENUE OR PROFIT OR FOR SPECIAL INDIRECT CONSEQUENTIAL INCIDENTAL OR PUNITIVE DAMAGES REGARDLESS OF THE THEORY OF LIABILITY INCLUDING NEGLIGENCE ARISING OUT OF OR RELATED TO THE USE OF OR INABILITY TO USE THE PRODUCT INCLUDING ANY SOFTWARE EVEN IF LINKSYS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES IN NO EVENT WILL LINKSYS LIABILITY EXCEED THE AMOUNT PAID BY YOU FOR THE PRODUCT The foregoing limitations will apply even if any warranty or remedy provided under this Agreement fails of its essential purpose Some jurisdictions do not allow the exclusion or limitation of i
9. 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 disabled in the browser Check our website at www linksys com for more information If all else fails in the installation what can do Reset the Gateway by holding down the reset button until the Power LED fully turns on and off Reset your Gateway by powering the unit off and then on Will the Gateway function in a Macintosh environment Yes but the Gateway s setup pages are accessible only through Internet Explorer 4 0 or Netscape Navigator 4 0 or higher for Macintosh With which type of firewall is the Gateway equipped The Gateway uses NAT and TCP IP port inspections It also has SPI Stateful Packet Inspection am not able to get the web configuration screen for the Gateway What can I do You may have to remove the proxy settings on your Internet browser e g Netscape Navigator or Internet Explorer Check with your browser documentation and 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 Na
10. at and interact with all the information on the World Wide Web 55 Buffer A block of memory that temporarily holds data to be worked on later when a device is currently too busy to accept the data Cable Modem A device that connects a computer to the cable television network which in turn connects to the Internet CSMA CA Carrier Sense Multiple Access Collision Avoidance A method of data transfer that is used to prevent data loss in a network CTS Clear To Send A signal sent by a device to indicate that it is ready to receive data Daisy Chain A method used to connect devices in a series one after the other Database A collection of data that is organized so that its contents can easily be accessed managed and updated DDNS Dynamic Domain Name System The capability of having a website FTP or e mail server with a dynamic IP address use a fixed domain name Default Gateway A device that forwards Internet traffic from your local area network DHCP Dynamic Host Configuration Protocol A protocol that lets one device on a local network known as a DHCP server assign temporary IP addresses to the other network devices typically computers DMZ Demilitarized Zone Removes the Gateway s firewall protection from one computer allowing it to be seen from the Internet DNS Domain Name Server The IP address of your ISP s server which translates the names of websites into IP addresses Domain A
11. finished making your changes on this tab click the Save Settings button to save these changes or click the Cancel Changes button to undo your changes Chapter 5 Configuring the Wireless G Cable Gateway The Access Restrictions Tab Access Restrictions 3 3 aj Lel tel 3 3 3 Ld te Le ed Le L 3 3 HE 299999019001 111111117118 1484114444 Figure 5 23 Filter Internet Traffic 35 Wireless G Cable Gateway The Applications and Gaming Tab Port Range Forwarding The Port Forwarding screen 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 network via the Internet the Gateway will forward those requests to the appropriate computer Any computer whose port is being forwarded should have its DHCP client function disabled and should have a new static IP address assigned to it because its IP address may change when using the DHCP function e Application Enter the name you wish to give each application Start and End Enter the starting and ending numbers of the port range you wish to forward Protocol Select the type of protocol you wish to
12. found a driver foe the following device Gy USB Cable Modem Windows found a driver for this device To instal the drives Windows found click Next db weg200v2 ink cuca Figure 4 22 Driver Located Found New Hardware Wizard Completing the Found New Hardware Wizard Linksys WOG200 ver 2 Wireless G Cable Gateway Vv Windows has finished installing the software for this device To close this wiz d click Finish Figure 4 23 Driver Installation Complete 16 Wireless G Cable Gai Installing the USB Driver for Windows XP Found New Hardware 1 Start up your PC Windows will notify you that it has detected new hardware Insert the Setup CD into the CD USB Cable Modem ROM drive Figure 4 24 Found New Hardware 2 When the Welcome to the Found New Hardware Wizard screen appears to confirm that the device has been Found New Hardware Wizard identified by your PC click the Next button Welcome to the Found New Hardware Wizard This wizard helps you install software for USB Cable Modem If your hardware came with an installation CD SE or floppy insert it now What do you want the wizard to do Install the software automatically Recommended Install from a Est or specific location Advanced Click Next to continue Figure 4 25 Welcome 3 Windows will now search for the driver software Found New Hardware Wizard Please wait while the wizard searches gt
13. from your Windows 98 CD ROM If prompted insert your Windows 98 CD ROM into your CD ROM drive and enter d win98 in the box that appears if d is the letter of your CD ROM drive If you were not supplied with a Windows 98 CD ROM your Windows files may have been placed on your hard drive by your computer manufacturer While the location of these files may vary many manufacturers use c windows options cabs as the path Try entering this path into the box If no files are found check your computer s documentation or contact your computer manufacturer for more information After Windows has completed installing this driver click Finish When asked if you want to restart your PC remove all CD ROMs from the PC and click Yes If Windows does not ask you to restart your PC click the Start button choose Shut Down choose Restart and then click Yes The Windows 98 driver installation is complete IMPORTANT Make sure to contact your Cable ISP with the Gateway s MAC address after the Gateway is powered on so they can activate your account or you will not have Internet access 10 Contact your Cable ISP to activate your account Your Cable ISP will need what is called a MAC Address for the cable modem capability of the Gateway in order to set up your account The 12 digit modem MAC address is printed on a bar code label on the bottom of the Gateway Once you have given them this number your Cable ISP should be able to activate your accoun
14. it has locked on the signal Green The Online LED flashes when the Gateway is establishing a connection to your cable ISP It is solidly lit when the Gateway is synchronized with your cable ISP Green or red Ethernet 1 4 LED serves multiple purposes If the LED is solid green the Gateway is successfully connected to a device through the corresponding port 1 2 3 or 4 If the LED is flashing green the Gateway is actively sending or receiving data over that port If the LED lights up red there is a collision Green or red The LED is solid green when a PC is connected to the Gateway via USB and drivers are installed If the LED flashes red the cable is connected but the driver isn t loaded Green or red The LED flashes green during wireless activity If the LED flashes red there is an error o Know the Wireless G Cable Gateway NOTE If the US and DS LEDs are flashing the Gateway is still operating but your Internet service has been disabled by your Internet Service Provider ISP NOTE If the US DS and Online LEDs are flashing the Gateway is performing a self test Chapter 4 Connecting the Wireless G Cable Gateway Overview To set up the Gateway you will have to connect the Gateway to your Cable line computers and other network devices as well as configure the Gateway with setting s provided by your Internet Service Provider ISP The installation technician from your ISP should have left the se
15. length If you are using 128 bit WEP encryption the key must be exactly 26 hexadecimal characters in length Valid hexadecimal characters are 0 9 and A F When finished making your changes on this tab click the Save Settings button to save these changes or click the Cancel Changes button to undo your changes nfiguring the Vars Network Nane Brosdeact Gratin C Disatie SSO Grosscont Securty Mode WEP Viretess Encryption Levet 64 61 Encryption Dett Kery ls Poraprrese tor Keys Varoioss WEP Key 1 0000000000 V roioss VP Key 82 0000000000 Viretons VP Key 3 0000000000 V rekess WEP Key 84 0000000000 Figure 5 13 WEP 28 Wireless G Cable Gateway Wireless Network Access Tab Wireless Network Access If this function is enabled only the computers on the list will be allowed access to the wireless network To add a computer to the network click Enable to enable the function Then enter the MAC addresses in the fields provided You can also click the Select MAC Address From Networked Computers button Select the MAC Address es you want from the list and click the Add button Click the Refresh button if you want to refresh the on screen information Click the Close button to return to the previous screen When finished making your changes on this tab click the Save Settings button to save these changes or click the Cancel Changes button to undo your changes Chapter 5 Confi
16. problems connecting wirelessly you may need NOTE If the Gateway was provided to you by your Cable ISP it may require different to connect to the Gateway with a wired connection so you can change the settings The Gateway s hardware installation is now complete Go to Chapter 5 Configuring the Gateway Figure 4 4 Cable Connection Figure 4 5 Power Connection NOTE After configuration you should always change the SSID from its default linksys and enable encryption 10 Wired USB Connection to a Computer First make sure that all the devices that you ll be working with are powered down including your PCs and the Gateway 1 Connect the coaxial cable that is provided by your cable service provider to the Cable port that is on the back of the Gateway 2 Connect one end of a USB cable to your PC s USB port and connect the other end of the USB cable to the USB port on the back of the Gateway 3 Connect the power adapter to the Gateway Plug the other end of the power adapter into the electrical outlet preferably a surge protector 4 Turn on the Gateway Then turn on your PC 5 During the boot up process your computer should recognize the device and ask for driver installation 6 Next you will need to install the USB driver Continue to the section for your Windows operating system Figure 4 6 Cable Connection Figure 4 7 USB Connection Figure 4 8 Power Connection 11 Wireles
17. security concerns This is overstating WEP s ability Again this can only provide enough security to make a hacker s job more difficult There are several ways that WEP can be maximized 1 Use the highest level of encryption possible 2 Use Shared Key authentication 3 Change your WEP key regularly WPA Wi Fi Protected Access WPA is the newest and best available standard in Wi Fi security Five modes are available WPA Personal WPA2 Personal WPA Enterprise WPA2 Enterprise and RADIUS WPA Personal gives you a choice of two encryption methods TKIP Temporal Key Integrity Protocol which utilizes a stronger encryption method and incorporates Message Integrity Code MIC to provide protection against hackers and AES Advanced Encryption Standard which utilizes a symmetric 128 Bit block data encryption WPA2 Personal only uses AES encryption which is stronger than TKIP WPA Enterprise offers two encryption methods TKIP and AES 51 with dynamic encryption keys while WPA2 Enterprise only uses AES encryption RADIUS Remote Authentication Dial In User Service utilizes a RADIUS server for authentication WPA Personal If you do not have a RADIUS server select the type of algorithm you want to use TKIP or AES and enter a password in the Passphrase field of 8 63 characters WPA2 Personal Enter a password in the Passphrase field of 8 63 characters WPA Enterprise WPA used in coordination with a RADIUS server This should
18. settings to a range from 1024 to 1030 on the DCC option and Forwarding page of the Web based Setup Utility What is the IEEE 802 11g standard Itis one of the IEEE standards for wireless networks The 802 11g standard allows wireless networking hardware from different manufacturers to communicate provided that the hardware complies with the 802 11g standard The 802 11g standard states a maximum data transfer rate of 54Mbps and an operating frequency of 2 4GHz What is ad hoc mode When a wireless network is set to ad hoc mode the wireless equipped computers are configured to communicate directly with each other peer to peer without the use of an access point Ad hoc mode is not used with the Gateway What is infrastructure mode When a wireless network is set to infrastructure mode the wireless network is configured to communicate with a network through a wireless access point Infrastructure mode is used with the Gateway 48 What is a MAC Address The Media Access Control MAC address is a unique number assigned by the manufacturer to any Ethernet networking device such as a network adapter that allows the network to identify it at the hardware level For all practical purposes this number is usually permanent Unlike IP addresses which can change every time a computer logs onto the network the MAC address of a device stays the same making it a valuable identifier for the network 49 Appendix B Wireless Security Linksys
19. specific kinds of Internet usage You can set up Internet access policies for specific computers and set up filters by using network port numbers Website Blocking Tab Website Keyword Blocking You can filter access to various websites accessed over the Internet Enter the keyword or website URL in the field next to New Website Keyword Blocking and click the Add button The keyword or website URL will be added to the Website Keyword List To unblock a website or delete a keyword highlight the keyword or website URL in the list and click the Remove button Timed Access Tab Timed Access can be used to limit the days or hours of access to the network You can set up a Timed Access policy for each local MAC address To use the feature enter the MAC address in the field then click the Add button You can also click the Select MAC Address from Networked Computers button On the new screen that appears select a MAC address and click the Add button Click the Refresh button if you want to refresh the on screen information Click the Close button to return to the previous screen Day to Block Select Everyday or select individual days Time to Block Select All day or enter a specific range of hours and minutes When finished making your changes to a policy click the Save Settings button to save these changes or click the Cancel Changes button to undo your changes Repeat the aforementioned steps to set up a new policy To remove a policy se
20. undo your changes Optional Settings Required by some ISPs e Host Name and Domain Name These fields allow you to supply a host and domain name for the Gateway Some ISPs require these names as identification 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 Network Setup Gateway IP The value for the Gateway s Local IP Address are shown here e Network Address Server Settings DHCP A Dynamic Host Configuration Protocol DHCP server automatically assigns an IP address to each computer on your network for you Unless you already have one it is highly recommended that you leave the Gateway enabled as a DHCP server Local DHCP Server If you enable the DHCP Server for the Local DHCP server enter the IP address for the DHCP server in the fields provided Start IP Address Enter a value for the DHCP server to start with when issuing IP addresses This value must be 192 168 0 2 or greater because the default IP address for the Gateway is 192 168 0 1 Number of Address Enter the maximum number of computers that you want the DHCP server to assign IP addresses to This number cannot be greater than 253 By default the range is 192 168 0 10 to 192 168 0 254 IP Address Range The range of DHCP addresses is displayed here When finished making your changes on this tab click the Save Settings button to sa
21. unique address that a manufacturer assigns to each networking device Mbps Megabits Per Second One million bits per second a unit of measurement for data transmission Multicasting Sending data to a group of destinations at once NAT Network Address Translation NAT technology translates IP addresses of a local area network to a different IP address for the Internet Network A series of computers or devices connected for the purpose of data sharing storage and or transmission between users NNTP Network News Transfer Protocol The protocol used to connect to Usenet groups on the Internet Node A network junction or connection point typically a computer or work station OFDM Orthogonal Frequency Division Multiplexing A type of modulation technology that separates the data stream into a number of lower speed data streams which are then transmitted in parallel Used in 802 11a 802 119 and powerline networking Packet A unit of data sent over a network Passphrase Used much like a password a passphrase simplifies the WEP encryption process by automatically generating the WEP encryption keys for Linksys products Ping Packet INternet Groper An Internet utility used to determine whether a particular IP address is online POP3 Post Office Protocol 3 A standard protocol used to retrieve e mail stored on a mail server Port 1 The connection point on a computer or networking device used for plugging in a ca
22. 780 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 Port 8080 usually works well but is used for remote admin You may have to disable this 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 Gateway from your ISP 46 Can 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 Gateway 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 J ust forward port 27015 to the local IP address of the server computer The web page hangs downloads are corrupt or nothing but junk characters are being displayed on the screen What do I need to do Force your Ethernet
23. AN to LAN connections but those protocols cannot connect from the Internet to a LAN 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 computer connected to the private LAN is never transmitted on the Internet Furthermore NAT allows the Gateway to be used with low cost Internet accounts 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 Gateway support any operating system other than Windows 98SE Windows Millennium Windows 2000 or Windows XP Yes but Linksys does not at this time provide technical support for setup configuration or troubleshooting of any non Windows operating systems Does the Gateway support ICQ send file Yes with the following fix click ICQ menu gt preference gt connections tab gt and check am behind a firewall or proxy Then set the firewall time out to 80 seconds in the firewall setting The Internet user can then send a file to a user behind the Gateway 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 7
24. LINKSYS A Division of Cisco Systems Inc 2 4GHz Cisco SYSTEMS Model No WCG200 Copyright and Trademarks Specifications are subject to change without notice Linksys is a registered trademark or trademark of Cisco Systems Inc and or its affiliates in the U S and certain other countries Copyright 2005 Cisco Systems Inc All rights reserved Other brands and product names are trademarks or registered trademarks of their respective holders WARNING This product contains chemicals including lead known to the State of California to cause cancer and birth defects or other reproductive harm Wash hands after handling How to Use this Guide Your Guide to the Wireless G Cable Gateway has been designed to make understanding networking with the Gateway easier than ever Look for the following items when reading this User Guide This checkmark means there is a Note of interest and is something you should pay special attention to while using the Gateway This exclamation point means there is a Caution or Warning and is something that could damage your property or the Gateway This question mark provides you with a reminder about something you might need to do while using the Gateway In addition to these symbols there are definitions for technical terms that are presented like this word definition Also each figure diagram screenshot or other image is provided with a figure number and description l
25. Sec and or PPTP Passthrough use this screen computers communicate over the network with this protocol Refer to Windows Help for more information on TCP IP NOTE For added security you should change the password through the Administration tab HAVE YOU Enabled TCP IP on your computers NOTE Depending on your service provider some features and functions in the Web based Utility may not be available or may perform differently than described in the User Guide 19 Access Restrictions Website Blocking You are allowed to filter website access on this screen Timed Access This screen allows you to limit the days or hours of access to the network Filter Internet Traffic You can filter or block ports from Internet access by IP address or port range on this screen Applications amp Gaming Port Range Forwarding To set up public services or other specialized Internet applications on your network click this tab Port Triggering To set up triggered ranges and forwarded ranges for Internet applications click this tab DMZ To allow one local user to be exposed to the Internet for use of special purpose services use this screen Administration Security On this screen alter Gateway access privileges UPnP settings Reporting settings and Log settings Diagnostics Use this screen to do a Ping Test Factory Defaults If you want to restore the Gateway s factory defaults use this screen Advanced This sc
26. Settings and Control Panel Double click Network and Dial Up Connections 2 Right click the Local Area Connection that is associated with the Ethernet adapter you are using and select the Properties option 3 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 4 Enter a unique IP address that is not used by any other computer on the network connected to the Gateway 5 Enter the Subnet Mask 255 255 255 0 6 Enter the Default Gateway 192 168 0 1 Gateway s default IP address 43 3 For 8 9 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 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 1 2 3 4 Click Start and Control Panel Click the Network and Internet Connections icon and then the Network Connections icon Right click the Local A
27. TE The MAC address is also called the Adapter Address 11 Contiouoion x r Ethemet Adapter Information Subnet Mask 255 255 255 0 Defaut Gateway 192 168 1 254 Release Renew Release All Renew All pedet Figure C 1 IP Configuration Screen ZIP Contiguation 1x r Ethemet Adapter Information linksys LNE100TX Fast Ethernel 7 Adapter Address 000000 00 0000 gt IP Address 192 168 1 100 SubnetMack 2552552550 Default Gateway 1s2t6aty Figure C 2 MAC Address Adapter Address 53 Windows 2000 or XP Instructions 1 Click Start and Run In the Open field enter cmd Press the Enter key or click the OK button NOTE The MAC address is also called the Physical Address 2 Atthe command prompt enter ipconfig all Then press the Enter key 3 Write down the Physical Address as shown on your computer screen Figure D 3 it is the MAC address for your Ethernet adapter This appears as a series of numbers and letters The MAC address Physical Address is what you will use for MAC filtering The example in Figure D 3 shows the Ethernet adapters s MAC address as 00 00 00 00 00 00 Your computer will show something different The example in Figure E 3 shows the Ethernet adapter s IP address as 192 168 1 100 Your computer may show something different Figure C 3 MAC Address Physical Address 54 Appendix D Glossary 802 11a An IEEE wireless networking stand
28. USB Cable Modem Figure 4 26 Searching for Driver 17 When Windows has completed installing the driver click the Finish button The Windows XP driver installation is complete IMPORTANT Make sure to contact your Cable ISP with the Gateway s MAC address after the Gateway is powered on so they can activate your account or you will not have Internet access Contact your Cable ISP to activate your account Your Cable ISP will need what is called a MAC Address for the cable modem capability of the Gateway in order to set up your account The 12 digit modem MAC address is printed on a bar code label on the bottom of the Gateway Once you have given them this number your Cable ISP should be able to activate your account The Online LED flashes when the Gateway is establishing a connection to your cable ISP When the Cable is synchronized with your cable ISP the LED will be solidly lit The Gateway s hardware installation is now complete Go to Chapter 5 Configuring the Gateway Found New Hardware Wizard Completing the Found New Hardware Wizard The wizard has finished installing the software for 2 Linksys WCG200 ver 2 Wireless G Cable Gateway Click Finish to close the wizard Figure 4 27 Driver Installation Complete 18 Chapter 5 Configuring the Wireless G Cable Gateway Overview Follow the steps in this chapter and use the Gateway s web based utility to configure the Gateway This chapter will d
29. VPN Figure 5 20 Website Blocking Figure 5 21 Timed Access Figure 5 22 MAC Address Figure 5 23 Filter Internet Traffic Figure 5 24 Port Range Forwarding Figure 5 25 Port Triggering Figure 5 26 DMZ Figure 5 27 Security Figure 5 28 Ping Test Figure 5 29 Advanced Administration Figure 5 30 Gateway Figure 5 31 Connection Figure 5 32 Local Network Figure 5 33 Modem Log Figure C 1 IP Configuration Screen Figure C 2 MAC Address Adapter Address Figure C 3 MAC Address Physical Address Chapter 1 Introduction Welcome The Linksys Wireless G Cable Gateway is the all in one solution for Internet connectivity in your home The Cable Modem function gives you a blazing fast connection to the Internet far faster than a dial up and without tying up your phone line How does the Wireless G Cable Gateway do all of this A gateway is a device that allows access to a cable Internet connection over a network With the Gateway this access can be shared to wireless clients at either up to 11Mbps for Wireless B or up to 54Mbps for Wireless G In addition the WPA standard provides greater security opportunities while the whole network is protected through a Stateful Packet Inspection SPI firewall and NAT technology The Gateway s firewall protects your network of PCs so users on the public Internet side cannot see your PCs This is how your local network remains private The Gateway protects your network by inspecting t
30. Wiraless G Cable Figure 5 26 DMZ 37 Wireless G Cable Gateway The Administration Tab Security Tab The Security screen allows you to change the Gateway s access settings as well as configure the UPnP Universal Plug and Play and Reporting features Security To ensure the Gateway s security you will be asked for your password when you access the Gateway s Web based Utility The default password is admin Gateway Password It is recommended that you change the default password to one of your choice e Re enter to confirm Re enter the Gateway s new Password to confirm it Remote Administration When enabled the Web based Utility can be accessed from the Internet To connect type http 127 0 0 1 8080 in the web browser s Address field but replace 127 0 0 1 with the WAN Internet IP address of the Gateway e Administration Port Enter the port number you will use to remotely access the Gateway The default is 8080 UPnP UPnP allows Windows XP to automatically configure the Gateway for various Internet applications such as gaming and videoconferencing UPnP To enable UPnP click Enable Reporting E Mail Alerts To enable E Mail Alerts click Enable e Your E Mail Address Enter the e mail address that will receive alert logs in the field provided e Your SMTP Server Name Enter the IP Address of the SMTP server Logs You can view security events and have logs e mailed to you Chapter 5 Configuring the Wire
31. am Channel information displayed is the Lock Status Modulation Channel ID Provisioned Rate Symbol Rate Downstream Power and SNR The Upstream Channel information that is displayed is Lock Status Modulation Channel ID Provisioned Rate Symbol Rate and Upstream Power Chapter 5 Configuring the Wireless G Cable Gateway The Status Tab Figure 5 31 Connection 41 Wireless G Cable Gateway Local Network This feature is used to release a DHCP client from the server Select the DHCP Client whose IP address that you want to release and then click the Release button Click the Refresh button to refresh the on screen information Figure 5 32 Local Network Modem Log The Modem log displays a log of Modem activity Click the Refresh button if you want to refresh your screen To delete all log entries click the Clear Log button Time Priority I Description Fetrosh Clear Log Figure 5 33 Modem Log Chapter 5 Configuring the Wireless G Cable Gateway 42 The Status Tab Appendix A Troubleshooting This appendix consists of two parts Common Problems and Solutions and Frequently Asked Questions Provided are possible solutions to problems that may occur during the installation and operation of the Gateway Read the descriptions below to help you solve your problems If you can t find an answer here check the Linksys website at www linksys com Common Problems and Solutions 1
32. and Static IP Each Basic Setup screen and available features will differ depending on what type you select Dynamic IP IP Settings Select Obtain IP Address Automatically if your ISP says you are connecting through a dynamic IP address Static IP If you are required to use a permanent static IP address to connect to the Internet then select Set Static IP Manually e Internet IP Address This is the Gateway s IP address when seen from the WAN or the Internet Your ISP will provide you with the IP Address you need to specify here e Subnet Mask This is the Gateway s Subnet Mask Your ISP will provide you with the Subnet Mask aixi gt Please type your user name and password Site 192 168 0 1 Realm Linksys WCG200 ver 2 User Name i Password ne M Save this password in your password list Cancel Figure 5 1 Password Screen internat Connaction Type Optional Setongs required by some ISPs Gateway IP Network Addr eu Server Settings NCH Figure 5 2 Dynamic IP 21 Wireless G Cable Gateway Default Gateway Your ISP will provide you with the default Gateway Address which is the ISP server s IP address Primary DNS Required and Secondary DNS Optional Your ISP will provide you with at least one DNS Domain Name System Server IP Address When finished making your changes on this tab click the Save Settings button to save these changes or click the Cancel Changes button to
33. ard that specifies a maximum data transfer rate of 54Mbps and an operating frequency of 5GHz 802 11b An IEEE wireless networking standard that specifies a maximum data transfer rate of 11Mbps and an operating frequency of 2 4GHz 802 11g An IEEE wireless networking standard that specifies a maximum data transfer rate of 54Mbps an operating frequency of 2 4GHz and backward compatibility with 802 11b devices Access Point Device that allows wireless equipped computers and other devices to communicate with a wired network Also used to expand the range of a wireless network Adapter This is a device that adds network functionality to your computer Ad hoc A group of wireless devices communicating directly with each other peer to peer without the use of an access point Backbone The part of a network that connects most of the systems and networks together and handles the most data Bandwidth The transmission capacity of a given device or network Beacon Interval The frequency interval of the beacon which is a packet broadcast by a Gateway to synchronize a wireless network Bit A binary digit Boot To start a device and cause it to start executing instructions Bridge A device that connects two different kinds of local networks such as a wireless network to a wired Ethernet network Broadband An always on fast Internet connection Browser A browser is an application program that provides a way to look
34. ble or an adapter 2 The virtual connection point through which a computer uses a specific application on a server 58 PPPoE Point to Point Protocol over Ethernet A type of broadband connection that provides authentication username and password in addition to data transport PPTP Point to Point Tunneling Protocol A VPN protocol that allows the Point to Point Protocol PPP to be tunneled through an IP network This protocol is also used as a type of broadband connection in Europe Preamble Part of the wireless signal that synchronizes network traffic RJ 45 Registered J ack 45 An Ethernet connector that holds up to eight wires Roaming The ability to take a wireless device from one access point s range to another without losing the connection Router A networking device that connects multiple networks together such as a local network and the Internet RTS Request To Send A packet sent when a computer has data to transmit The computer will wait for a CTS Clear To Send message before sending data Server Any computer whose function in a network is to provide user access to files printing communications and other services SMTP Simple Mail Transfer Protocol The standard e mail protocol on the Internet SNMP Simple Network Management Protocol A widely used network monitoring and control protocol Software Instructions for the computer A series of instructions that performs a particular task is cal
35. body INDUSTRY CANADA CANADA This Class B digital apparatus complies with Canadian ICES 003 RSS210 Cet appareil num rique de la classe B est conforme a la norme NMB 003 du Canada The use of this device in a system operating either partially or completely outdoors may require the user to obtain a license for the system according to the Canadian regulations EC DECLARATION OF CONFORMITY EUROPE Linksys declares that this product conforms to the specifications listed below following the provisions of the European R amp TTE directive 1999 5 EC EN 301 489 1 301 489 17 General EMC requirements for Radio equipment EN 609 50 Safety 63 EN 300 328 1 EN 300 328 2 Technical requirements for Radio equipment Caution This equipment is intended to be used in all EU and EFTA countries Outdoor use may be restricted to certain frequencies and or may require a license for operation Contact local Authority for procedure to follow Note Combinations of power levels and antennas resulting in a radiated power level of above 100 mW equivalent isotropic radiated power EIRP are considered as not compliant with the above mentioned directive and are not allowed for use within the European community and countries that have adopted the European R amp TTE directive 1999 5 EC For more details on legal combinations of power levels and antennas contact Linksys Corporate Compliance Linksys vakuuttaa taten etta dieses produkt tyyppinen laite on di
36. ddress of 192 168 0 xxx xxx is from 2 to 254 The Subnet Mask is 255 255 255 0 the default gateway IP should be the Gateway s IP Address and check that the DNS is correct e Check the same setup values on the Gateway s Status page When I enter a URL or IP address get a time out error e Check to see if your other PCs work If they do verify that your PC s IP settings are correct IP address Subnet Mask Default Gateway and DNS e Ifthe PCs are configured correctly but still not working check the Gateway Make sure that it is connected and ON Connect to it and check its settings If you cannot connect to it check the LAN and power connections e Ifthe Gateway is configured correctly check your Internet connection to see that it is working correctly e Manually configure the TCP IP with a DNS address provided by your ISP 45 Frequently Asked Questions What is the maximum number of IP addresses that the Gateway will support The Gateway will support up to 253 IP addresses Is IPSec Passthrough supported by the Gateway Yes it is a built in feature that is enabled by default Does the Gateway support IPX or AppleTalk No TCP IP is the only protocol standard 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 L
37. e Make sure that your PC is using an IP address within the default range of 192 168 0 2 to 192 168 0 254 and thus compatible with the Gateway default IP Address of 192 168 0 1 e Also the Subnet Mask should be set to 255 255 255 0 to match the Gateway For the Gateway you can check these settings by using Control Panel Network to check the Properties for the TCP IP protocol The Power LED stays red when it shouldn t The Power LED lights up when the device is first powered up The system will boot up itself and check for proper operation After finishing the checking procedure the Power LED turns green to show the system is working fine If the LED remains red after this time the device is not working properly The Online LED will not go solid e Verify that the coaxial cable is firmly plugged into the Gateway s cable port with the other end plugged directly into the Cable wall jack e Verify that your Cable account is active e Verify that your cable ISP has been given the correct MAC Address for the cable modem function I can t access the Internet from the Gateway e Check if both ends of the network cable and power adapter are properly connected Check if the status LEDs on the front panel are functioning properly e If using Windows 95 98 or Me check the TCP IP setup on the client side Run winipcfg by clicking on the Start button selecting Run and typing winipcfg in the Run field Press Enter The PC should have an IP a
38. e information Connect the power adapter to the Gateway s Power port and then plug the power adapter into a power outlet Turn the On Off switch to On IMPORTANT Make sure to contact your Cable ISP with the Gateway s MAC address after the A Gateway is powered on so they can activate your account or you will not have Internet access Contact your Cable ISP to activate your account Your Cable ISP will need what is called a MAC Address for the cable modem capability of the Gateway in order to set up your account The 12 digit modem MAC address is printed on a bar code label on the bottom of the Gateway Once you have given them this number your Cable ISP should be able to activate your account The Online LED flashes when the Gateway is establishing a connection to your cable ISP When the Cable is synchronized with your cable ISP the LED will be solidly lit Then turn on the PC that you want to use to configure the Gateway The Gateway s hardware installation is now complete Go to Chapter 5 Configuring the Gateway Figure 4 2 Ethernet Connection Figure 4 3 Power Connection NOTE You should always plug the Gateway s power adapter into a power strip with surge protection Wireless Connection to a Computer If you want to use a wireless connection to access the Gateway follow these instructions 1 Before you begin make sure that all of your network s hardware is powered off including the Ga
39. el Figure 4 1 Cable Connection Figure 4 2 Ethernet Connection Figure 4 3 Power Connection Figure 4 4 Cable Connection Figure 4 5 Power Connection Figure 4 6 Cable Connection Figure 4 7 USB Connection Figure 4 8 Power Connection Figure 4 9 Add New Hardware Wizard Figure 4 10 Search for Driver Figure 4 11 CD ROM Drive Figure 4 12 Select Updated Driver Figure 4 13 Install Driver Figure 4 14 Driver Installation Complete Figure 4 15 New Hardware Found Figure 4 16 Search for Driver Figure 4 17 Driver Installation Complete Figure 4 18 Found New Hardware Figure 4 19 Welcome Figure 4 20 Search for Driver Figure 4 21 CD ROM Drives Figure 4 22 Driver Located Figure 4 23 Driver Installation Complete Figure 4 24 Found New Hardware Figure 4 25 Welcome Figure 4 26 Searching for Driver Figure 4 27 Driver Installation Complete Figure 5 1 Password Screen Figure 5 2 Dynamic IP Figure 5 3 Static IP Figure 5 4 Basic Wireless Settings Figure 5 5 Press the SecureEasySetup Button on Only One Wireless Client Figure 5 6 WPA Personal Security Enabled Figure 5 7 Wireless Security Figure 5 8 WPA Personal Figure 5 9 WPA2 Personal Figure 5 10 WPA Enterprise Figure 5 11 WPA2 Enterprise Figure 5 12 RADIUS Figure 5 13 WEP Figure 5 14 Wireless Network Access Figure 5 15 MAC Address Access List Figure 5 16 Advanced Wireless Settings Figure 5 17 WDS Tab Figure 5 18 Firewall Figure 5 19
40. em is displayed here CM Certificate The installation status of the CM certificate is displayed here Chapter 5 Configuring the Wireless G Cable Gateway The Status Tab Figure 5 29 Advanced Administration Wireless G Cable Gatrway Status Reciw DHCP Lease Figure 5 30 Gateway 40 Wireless G Cable Gateway Status The Internet connection status information is displayed This section indicates the System Up Time Network Access WAN IP Address Subnet Mask Gateway IP Address DNS server s WAN DHCP IP Address Lease and WAN DHCP IP Expiration System Up Time This indicates how long the Gateway has been active Network Access This indicates whether access to the network has been achieved WAN IP Address This indicates the IP Address that is assigned to the Gateway Subnet Mask The Subnet Mask of the Gateway is displayed here Gateway IP Address The IP Address of the Gateway is shown here DNS Server s The IP address es of the DNS server s are displayed here WAN DHCP IP Address Lease This indicates how long the lease is WAN DHCP IP Expires This indicates when the lease expires Renew DHCP Lease Click the Renew DHCP Lease button to replace your Gateway s current IP address with a new IP address Connection The cable connection information is displayed The Startup Procedure information displayed is Acquire Downstream Channel Connectivity State Boot State and Security The Downstre
41. ers i Security Pere Mucor iraia C Dustin Perean Wireless G Cable Gateway F tratie Duane Ce enable F Dissi G Gratin C buse rate Dire Enebie Dirai atie Die Save Settings ges Figure 5 18 Firewall 32 Wireless G Cable Gateway VPN Passthrough Tab Virtual Private Networking VPN is a security measure that basically creates a secure connection between two remote locations The VPN screen allows you to configure your VPN settings to make your network more secure VPN Passthrough e IPSec Passthrough Internet Protocol Security IPSec is a suite of protocols used to implement secure exchange of packets at the IP layer To allow IPSec Passthrough click the Enable button To disable IPSec Passthrough click the Disable button e PPTP Passthrough Point to Point Tunneling Protocol Passthrough is the method used to enable VPN sessions to a Windows NT 4 0 or 2000 server To allow PPTP Passthrough click the Enable button To disable PPTP Passthrough click the Disable button When finished making your changes on this tab click the Save Settings button to save these changes or click the Cancel Changes button to undo your changes Li Dion of Onca yum ts Security VEN Passthrough PS Para pm G trace Osa ere C Omie Figure 5 19 VPN 33 Wireless G Cable Gateway The Access Restrictions Tab The Access Restrictions tab allows you to block or allow
42. escribe each web page in the Utility and each page s key functions The utility can be accessed via your web browser through use of a computer connected to the Gateway For a basic network setup most users only have to use the following screens of the Utility Setup On the Setup screen enter the settings provided by your ISP e Security Click the Administration tab and then the Security tab The Gateway s default username and password is admin To secure the Gateway change the Password from its default There are seven main tabs Setup Wireless Security Access Restrictions Applications amp Gaming Administration and Status Additional tabs will be available after you click one of the main tabs Setup Setup Enter the Internet connection settings on this screen Wireless Basic Wireless Settings You can choose your wireless network settings on this screen Wireless Security This screen allows you to choose your wireless security mode e Wireless Network Access This screen displays your wireless network access list e Advanced Wireless Settings On this screen you can access the advanced wireless features e WDS The wireless distribution system feature is accessed on this screen Security e Firewall This screen contains filters and the Block WAN Requests feature Filters block specific internal users from accessing the Internet and block anonymous Internet requests e VPN Passthrough To enable or disable IP
43. etc are stored in its firmware Your network administrator is the only person who can change network settings If a hacker gets a hold of the administrator s password he too can change those settings So make it harder for a hacker to get that information Change the administrator s password regularly 50 SSID There are several things to keep in mind about the SSID 1 Disable Broadcast 2 Make it unique 3 Change it often Most wireless networking devices will give you the option of broadcasting the SSID While this option may be more convenient it allows anyone to log into your wireless network This includes hackers So don t broadcast the SSID Wireless networking products come with a default SSID set by the factory The Linksys default SSID is linksys Hackers know these defaults and can check these against your network Change your SSID to something unique and not something related to your company or the networking products you use Change your SSID regularly so that any hackers who have gained access to your wireless network will have to start from the beginning in trying to break in MAC Addresses Enable MAC Address filtering MAC Address filtering will allow you to provide access to only those wireless nodes with certain MAC Addresses This makes it harder for a hacker to access your network with a random MAC Address WEP Encryption Wired Equivalent Privacy WEP is often looked upon as a cure all for wireless
44. guring the Wireless G Cable Gateway The Wireless Tab Wireless G Cable Gateway 2 Wireless Restat wretess networt access lo Pe tes certs Access Let Ense Disable w macs 00 00 00 00 0 mac 00 00 00 00 00 00 mac maca 00 00 00 00 00 00 macis Select MAC Address from Wireless Networked Computers Figure 5 14 Wireless Network Access mac address the unique address that a manufacturer assigns to each networking device Computer Name IP Address MAC Address Select No wireless chents are connected Refresh Close Add Figure 5 15 MAC Address Access List 29 Advanced Wireless Settings Tab On this screen you can access the Advanced Wireless features including Basic Data Rates Control Tx Rates Beacon Interval DTIM Interval Fragmentation Threshold RTS Threshold and Authentication Type Basic Data Rates Select Min or All from the drop down menu for rate Control Tx Rates Select Min or All from the drop down menu for the transmission rate All will negotiate the best possible connection speed between the Gateway and a wireless client Beacon Interval The default value is 100 Enter a value between 1 and 65 535 milliseconds The Beacon Interval value indicates the frequency interval of the beacon A beacon is a packet broadcast by the Gateway to synchronize the wireless network DTIM Interval The default value is 3 This value between 1 and 255 milliseconds
45. he first packet coming in through the Cable port before delivery to the final destination in the local network The Gateway inspects Internet port services like the web server ftp server or other Internet applications and if allowed will forward the packet to the appropriate PC on the LAN side All of these security features as well as full configurability are accessed through the easy to use browser based utility You can also connect your computer to the Wireless G Cable Gateway via USB or use the built in 4 port 10 100 Ethernet Switch to start your home network You can connect four PCs directly or daisy chain out to more hubs and switches to create as big a network as you need But what does all of this mean Networks are useful tools for sharing computer resources You can access one printer from different computers and access data located on another computer s hard drive Networks are even used for playing multiplayer video games So networks are not only useful in homes and offices they can also be fun PCs on a wired network create a LAN or Local Area Network They are connected with Ethernet cables which is why the network is called wired PCs equipped with wireless cards and adapters can communicate without cumbersome cables By sharing the same wireless settings within their transmission radius they form a wireless network This is sometimes called a WLAN or Wired Local Area Network The access point bridges wireless
46. his switch is used for turning the Gateway on and off The Power port is where you will connect the power adapter Press this button and hold it in for five seconds to restore the Gateway to its factory default settings These four ports are used to connect network devices such as PCs print servers and remote hard drives to your local area network LAN This is where you can use a USB cable to connect the Gateway The Cable port is where you will connect your coaxial Cable line A IMPORTANT Resetting the Gateway to factory defaults will erase all of your settings Internet connection wireless security and other settings and replace them with the factory defaults Do not reset the Gateway if you want to retain these settings ess G Cable Gate The Front Panel The Gateway s LEDs which displays information about network activity are located on the front panel Power Internet DS Internet US Internet Online Ethernet 1 4 USB Wireless Figure 3 2 Front Panel Green or red The green Power LED is solidly lit when the Gateway is powered on If the LED lights up red there is an error Green The DS Downstream LED lights up and flashes when the Gateway is trying to lock on a downstream signal The LED stays solidly lit when it has locked on the signal Green The US Upstream LED lights up and flashes when the Gateway is trying to lock on an upstream signal The LED stays solidly lit when
47. ike this Figure 0 1 Sample Figure Description Figure numbers and descriptions can also be found in the List of Figures section in the Table of Contents WCG200_V2 UG 50509B J L Table of Contents Chapter 1 Introduction Welcome What s in this Guide Chapter 2 Planning Your Network The Gateway s Functions IP Addresses Chapter 3 Getting to Know the Wireless G Cable Gateway The Back Panel The Front Panel Chapter 4 Connecting the Wireless G Cable Gateway Overview Wired Ethernet Connection to a Computer Wireless Connection to a Computer Wired USB Connection to a Computer Chapter 5 Configuring the Wireless G Cable Gateway Overview How to Access the Web based Utility The Setup Tab The Wireless Tab The Security Tab The Access Restrictions Tab The Applications and Gaming Tab The Administration Tab The Status Tab Appendix A Troubleshooting Common Problems and Solutions Frequently Asked Questions Appendix B Wireless Security Security Precautions Security Threats Facing Wireless Networks CO CO COND OBB BNP FF Appendix C Finding the MAC Address and IP Address for Your Ethernet Adapter Windows 98 or Me Instructions Windows 2000 or XP Instructions Appendix D Glossary Appendix E Specifications Appendix F Warranty Information Appendix G Regulatory Information Appendix H Contact Information 53 53 55 61 62 63 65 List of Figures Figure 2 1 Network Figure 3 1 Back Panel Figure 3 2 Front Pan
48. ing To use this feature click Enable and enter the wireless MAC address of the remote device in the MAC field You can have up to four remote devices When finished making your changes on this tab click the Save Settings button to save these changes or click the Cancel Changes button to undo your changes Chapter 5 Configuring the Wireless G Cable Gateway The Wireless Tab Figure 5 17 WDS Tab 31 Wireless G Cable Gateway The Security Tab Firewall On this screen you can enable filters to block specific Internet data types and anonymous Internet requests e Firewall Protection Enable this feature to employ Stateful Packet Inspection SPI for more detailed review of data packets entering your network environment e Filter Proxy Use of WAN proxy servers may compromise the Gateway s security Denying Filter Proxy will disable access to any WAN proxy servers To enable proxy filtering click Enable e Filter Cookies A cookie is data stored on your computer and used by Internet sites when you interact with them To enable cookie filtering click Enable e Filter J ava Applets J ava is a programming language for websites If you deny J ava Applets you run the risk of not having access to Internet sites created using J ava To enable J ava Applet filtering click Enable e Filter ActiveX If you deny ActiveX a programming language for websites you run the risk of not having access to Internet sites created using ActiveX
49. ion to your cable ISP When the Cable is synchronized with your cable ISP the LED will be solidly lit The Gateway s hardware installation is now complete Go to Chapter 5 Configuring the Gateway Chapter 4 Connecting the Wireless G Cable Gateway Wired USB Connection to a Computer New Hardware Found a USB Cable Modem Windows has found new hardware and is locating the software for it Figure 4 15 New Hardware Found Add New Hardware Wizard Windows has found the following new hardware USB Cable Modem Windows can automatically search for and install software that supports your hardware If your hardware came with installation media insert it now and click Next What would you like to do Specify the location of the driver Advanced cm Figure 4 16 Search for Driver Add New Hardware Wizard Linksys WCG200 ver 2 Wireless G Cable 2 Gateway Windows has finished installing the new hardware device Figure 4 17 Driver Installation Complete 14 Wireless G Cable Gateway Installing the USB Driver for Windows 2000 1 Start up your PC Windows will notify you that it has detected new hardware Insert the Setup CD into the CD ROM drive 2 When the Welcome to the Found New Hardware Wizard screen appears to confirm that the device has been identified by your PC click Next 3 Select Search for a suitable driver for my device recommended and click the Ne
50. le Gateway The Wireless Tab A Division of Osco See nc Wireless V reloss Network Nene Broadcast gt p o SSD Broodcast a o Securty Mode WPAEnerprse Encryption rap RADUS Server Assess a ae A RADUS Port faz Shared Secret Key Rarawa 3600 Seconds Figure 5 10 WPA Enterprise radius remote authentication dial in user service a protocol that uses an authentication server to control network access server any computer whose function in a network is to provide user access to files printing communications and other services Li Division nf Caco Syren be Wireless Veeetess Network Nera Bron e C Oeste SSD Broadcast ee Securty Mode WPA2Enterpnse Ererypton AES z RADLE Server Adress ER BB RADUS Port 812 Shared Secret Kary Renewal 3600 Seconds Figure 5 11 WPA2 Enterprise 26 Wireless G Cable Gateway RADIUS This option features WEP used in coordination with a RADIUS server This should only be used when a RADIUS server is connected to the Gateway First enter your RADIUS settings Select a level of WEP encryption 64 Bit Encryption or 128 Bit Encryption Then select a Default Key choose which Key to use Then either generate a WEP key using a Passphrase or enter the WEP key manually Division at Caco Byster ie Wireless e RADIUS Server Address Enter the RADIUS server s IP address RADIUS Port Enter the port number used by the RADIUS server
51. lect it from the drop down menu and click the Remove button guring the Wireless G Cak CtIOF ns Tab Access Restrictions Access Restrictions Select MAC Address tom Netwodiod Computers 00 00 00 00 00 00 Add No ters ertered I Enable Remove Figure 5 21 Timed Access IP Address MAC Address Select 192 168 0 11 00 01 03 D0 C3 9C le Refresh Ciose Add Figure 5 22 MAC Address 34 Wireless G Cable Gateway Filter Internet Traffic Tab This screen is used to filter or block ports from Internet access by IP address or Port Range IP Address Range To set up a filter using IP addresses enter the range of IP addresses you wish to filter in the Start and End 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 0 5 enter 5 into both fields on one line 192 168 0 5 192 168 0 5 Port Range Enter the port numbers you want to filter in the Start and End fields To filter users by network port number select the protocol you want to filter TCP UDP or Both from the Protocol drop down menu Users connected to the Gateway will no longer be able to access any port number listed there Click the Enable checkbox for each filter you want the Gateway to use When
52. led a program Spread Spectrum Wideband radio frequency technique used for more reliable and secure data transmission SSID Service Set IDentifier Your wireless network s name Static IP Address A fixed address assigned to a computer or device that is connected to a network Static Routing Forwarding data in a network via a fixed path Subnet Mask An address code that determines the size of the network Switch 1 Device that is the central point of connection for computers and other devices in a network so data can be shared at full transmission speeds 2 A device for making breaking or changing the connections in an electrical circuit 59 TCP IP Transmission Control Protocol Internet Protocol A network protocol for transmitting data that requires acknowledgement from the recipient of data sent Telnet A user command and TCP IP protocol used for accessing remote computers TFTP Trivial File Transfer Protocol A version of the TCP IP FTP protocol that uses UDP and has no directory or password capability Throughput The amount of data moved successfully from one node to another in a given time period Topology The physical layout of a network TX Rate Transmission Rate UDP User Datagram Protocol A network protocol for transmitting data that does not require acknowledgement from the recipient of the data that is sent Upgrade To replace existing software or firmware with a newer version Upl
53. less G Cable Gateway The Administration Tab Measan C tretie postie Banate Le men ioe ae trate ooste Haperting Cnt aient Crane Denne Vas Emad Adres vas San po Description Coumt Last Occurence Target Source Emai Log Geer Log Figure 5 27 Security 38 Wireless G Cable Gateway To send the logs click the E mail Log button To clear the log entries displayed on this screen click the Clear Log button When finished making your changes on this tab click the Save Settings button to save these changes or click the Cancel Changes button to undo your changes Diagnostics Tab Use this screen to run a ping test Ping Test Ping Test Parameters Ping Target Enter the IP Address that you want to ping in the field provided This can be either a local LAN IP or an Internet WAN IP address Ping Size Enter the size of the ping packets you want to use Number of Pings Enter the number of times that you want to ping Ping Interval Enter the ping interval in milliseconds Ping Timeout Enter the timeout period in milliseconds Ping Result The results of the ping test will be shown here Click the Start Test button to start the Ping Test Click the Abort Test button to stop the test Click the Refresh button to refresh the screen Click the Clear Results button to clear the screen Chapter 5 Configuring the Wireless G Cable Gateway The Administration Tab LINKSYS A Bien of Caco Syste
54. me Le Wireless G Cable Gateway Administration Retresh Gear Rests Figure 5 28 Ping Test 39 Wireless G Cable Gateway Advanced On this screen you can restore factory defaults or disable NAT and routing functions of the Gateway Restore Factory Defaults If you wish to restore the Gateway to its factory default settings and lose all your settings click Yes To begin the restore process click the Save Settings button to save these changes or click the Cancel Changes button to undo your changes Routing and NAT Click Disable to disable all NAT and routing functions of the Gateway and allow only the cable modem function The IP address of the device will change to 192 168 100 1 Click the Save Settings button to save these changes or click the Cancel Changes button to undo your changes The Status Tab Gateway This screen displays information about your Gateway and its WAN Internet Connections Information This section displays the Standard Specification Compliance Hardware Version Software Version Cable Modem MAC Address Cable Modem Serial Number and CM Certification Standard Specification Compliant The specification is displayed here Hardware Version The current hardware version is displayed here Software Version The current software version is displayed here Cable Modem MAC Address The MAC Address of the cable modem is displayed here Cable Modem Serial Number The serial number of the cable mod
55. ncidental or consequential damages so the above limitation or exclusion may not apply to You Please direct all inquiries to Linksys P O Box 18558 Irvine CA 92623 62 Appendix G Regulatory Information FCC STATEMENT This product 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 frequency energy and if not installed and used according to the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference 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 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 FCC Radiation Exposure Statement This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment This equipment should be installed and operated with minimum distance 20cm between the radiator and your
56. nd solutions as well as frequently asked questions regarding installation and use of the Wireless G Cable Gateway e Appendix B Wireless Security This appendix explains the risks of wireless networking and some solutions to reduce the risks e Appendix C Finding the MAC Address and IP Address for your Ethernet Adapter This appendix describes how to find the MAC address for your computer s Ethernet adapter so you can use the MAC filtering and or MAC address cloning feature of the Gateway e Appendix D Glossary This appendix gives a brief glossary of terms frequently used in networking e Appendix E Specifications This appendix provides the technical specifications for the Gateway e Appendix F Warranty Information This appendix supplies the warranty information for the Gateway Appendix G Regulatory Information This appendix supplies the regulatory information regarding the Gateway Appendix H Contact Information This appendix provides contact information for a variety of Linksys resources including Technical Support Chapter 2 Planning Your Network The Gateway s Functions A Gateway is a network device that connects two networks together In this instance the Gateway connects your Local Area Network LAN or the group of computers in your home or office to the Internet The Gateway processes and regulates the data that travels between these two networks The Gateway s NAT feature protects your network of computers so
57. network devices such as server computers or print servers Figure 2 1 Network networks it needs two IP addresses one for the LAN and one for the Internet In this User Guide you ll see references to the Internet IP address and the LAN IP address NOTE Since the Gateway is a device that connects two Since the Gateway uses NAT technology the only IP address that can be seen from the Internet for your network is the Gateway s Internet IP address However even this Internet IP address can be blocked so that the Gateway and network seem invisible to the Internet see the Block WAN Requests description under Security in Chapter 5 Configuring the Gateway static ip address a fixed address assigned to a computer or device that is connected to a network Since you use the Gateway to share your cable 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 address when configuring the Gateway You can get that information from your ISP Dynamic IP Addresses A dynamic IP address is automatically assigned to a device on the network such as computers and print servers These IP addresses are called dynamic because they are only temporarily assigned to the computer or device After a certain time period they expire and may change If a computer logs onto the network or the Internet and its dynamic IP address has expi
58. networks of both 802 11b and 802 11g standards and wired networks spi stateful packet inspection firewall a technology that inspects incoming packets of information before allowing them to enter the network firewall Security measures that protect the resources of a local network from intruders nat network address translation NAT technology translates IP addresses of a local area network toa different IP address for the Internet lan local area network The computers and networking products that make up the network in your home or office Use the instructions in this Guide to help you connect the Gateway set it up and configure it to bridge your different networks These instructions should be all you need to get the most out of the Gateway What s in this Guide e Chapter 1 Introduction This chapter describes the Wireless G Cable Gateway applications and this User Guide e Chapter 2 Planning Your Network This chapter describes the basics of networking e Chapter 3 Getting to Know the Wireless G Cable Gateway This chapter describes the physical features of the Gateway e Chapter 4 Connecting the Wireless G Cable Gateway This chapter instructs you on how to connect the Gateway to your network e Chapter 5 Configuring the Wireless G Cable Gateway This chapter explains how to use the Web based Utility to configure the settings on the Gateway e Appendix A Troubleshooting This appendix describes some problems a
59. o provide access control to your network and encryption security for every data transmission To decode data transmissions all devices in a network must use an identical WEP key Higher encryption levels offer higher levels of security but due to the complexity of the encryption they may decrease network performance To enable WEP select 64 Bit Encryption or 128 Bit Encryption Default Key Select which WEP key 1 4 will be used when the Gateway sends data Make sure that the receiving device wireless client is using the same key Passphrase for Keys Instead of manually entering WEP keys you can enter a passphrase This passphrase is used to generate one or more WEP keys It is case sensitive and should not be longer than 32 alphanumeric characters This Passphrase function is compatible with Linksys wireless products only and cannot be used with Windows XP Zero Configuration If you want to communicate with non Linksys wireless products or Windows XP Zero Configuration make a note of the WEP key you want to use and enter it manually in the wireless client After you enter the Passphrase click the Generate Keys button to create WEP keys Wireless WEP Keys 1 4 WEP keys enable you to create an encryption scheme for wireless network transmissions If you are not using a Passphrase then manually enter a set of values Do not leave a key field blank If you are using 64 bit WEP encryption the key must be exactly 10 hexadecimal characters in
60. oad To transmit a file over a network URL Uniform Resource Locator The address of a file located on the Internet VPN Virtual Private Network A security measure to protect data as it leaves one network and goes to another over the Internet WAN Wide Area Network The Internet WEP Wired Equivalent Privacy A method of encrypting data transmitted on a wireless network for greater security WINIPCFG A Windows 98 and Millennium utility that displays the IP address for a particular networking device WLAN Wireless Local Area Network A group of computers and associated devices that communicate with each other wirelessly 60 Appendix E Specifications Standards Ports Buttons Cabling Type LEDs Security WEP key bits Dimensions Unit Weight Power Certifications Operating Temp Storage Temp Operating Humidity Storage Humidity DOCSIS 1 0 DOCSIS 1 1 Certified DOCSIS 2 0 Certified 802 119 802 11b 4 RJ 45 10 100 1 USB 1 Female Coax F Connector Power ON OFF switch Reset CAT5 USB Coax Power DS US Online Ethernet USB Wireless WPA WPA2 WEP MAC address filtering SPI Firewall SecureEasySetup 64 128 7 32 x 2 48 x 6 08 186 mm x 63 mm x 155 mm 1 0 Ib 0 45 kg External 12V DC 1A DOCSIS 1 1 DOCSIS 2 0 FCC Part 15B Class B UL 1950 EN60950 CE EN 55022 Class B VCCI IC 03 02C to 402C 32 F to 104 F 202C to 702C 49F to 1589F 20 to 90 Non Condensing
61. ommendations should help keep your mind at ease while you are enjoying the most flexible and convenient technology Linksys has to offer 52 Appendix C Finding the MAC Address and IP Address for Your Ethernet Adapter This section describes how to find the MAC address for your computer s Ethernet adapter so you can use the MAC filtering feature of the Gateway You can also find the IP address of your computer s Ethernet adapter This IP address is used for the Gateway s filtering forwarding and or DMZ features Follow the steps in this appendix to find the adapter s MAC or IP address in Windows 98 Me 2000 or XP Windows 98 or Me Instructions 1 Click Start and Run In the Open field enter winipcfg Then press the Enter key or the OK button 2 When the IP Configuration screen appears select the Ethernet adapter you have connected to the Gateway via a CAT 5 Ethernet network cable See Figure E 1 3 Write down the Adapter Address as shown on your computer screen see Figure E 2 This is the MAC address for your Ethernet adapter and is shown in hexadecimal as a series of numbers and letters The MAC address Adapter Address is what you will use for MAC filtering The example in Figure D 2 shows the Ethernet adapters s MAC address as 00 00 00 00 00 00 Your computer will show something different The example in Figure E 3 shows the Ethernet adapter s IP address as 192 168 1 100 Your computer may show something different NO
62. only be used when a RADIUS server is connected to the Router or other device WPA Enterprise offers two encryption methods TKIP and AES with dynamic encryption keys Enter the RADIUS server s IP Address and port number along with a key shared between the device and the server Last enter a Group Key Renewal period which instructs the device how often it should change the encryption keys WPA2 Enterprise WPA2 used in coordination with a RADIUS server This should only be used when a RADIUS server is connected to the Router or other device WPA Enterprise offers two encryption methods AES and TKIP AES with dynamic encryption keys Enter the RADIUS server s IP Address and port number along with a key shared between the device and the server Last enter a Group Key Renewal period which instructs the device how often it should change the encryption keys RADIUS WEP used in coordination with a RADIUS server This should only be used when a RADIUS server is connected to the Router or other device First enter the RADIUS server s IP Address and port number along with a key shared between the device and the server Then select a WEP key and a level of WEP encryption and either generate a WEP key through the Passphrase or enter the WEP key manually Implementing encryption may have a negative impact on your network s performance but if you are transmitting sensitive data over your network encryption should be used These security rec
63. our CD ROM drive and enter d win9x in the box that appears if d is the letter of your CD ROM drive If you were not supplied with a Windows CD ROM your Windows files may have been placed on your hard drive by your computer manufacturer While the location of these files may vary many manufacturers use c windows options install as the path Try entering this path into the box If no files are found check your computer s documentation or contact your computer manufacturer for more information 4 When Windows finishes installing the driver click Finish 5 When asked if you want to restart your PC remove all CD ROMs from the PC and click Yes If Windows does not ask you to restart your PC click the Start button choose Shut Down choose Restart and then click Yes 6 The Windows Millennium driver installation is complete IMPORTANT Make sure to contact your Cable ISP with the Gateway s MAC address after the Gateway is powered on so they can activate your account or you will not have Internet access 7 Contact your Cable ISP to activate your account Your Cable ISP will need what is called a MAC Address for the cable modem capability of the Gateway in order to set up your account The 12 digit modem MAC address is printed on a bar code label on the bottom of the Gateway Once you have given them this number your Cable ISP should be able to activate your account The Online LED flashes when the Gateway is establishing a connect
64. out period which instructs the Gateway how often it should change the encryption keys When finished making your changes on this tab click the Save Settings button to save these changes or click the Cancel Changes button to undo your changes Chapter 5 Configuring the Wireless G Cable Gateway The Wireless Tab LINKSYS Aviom of Cece Systemes te Wireless Wireless Networt Name Broadcast G Enie C inate SSO Brosccant Saczty Mode WPA Penone Figure 5 8 WPA Personal wpa wi fi protected access a wireless security protocol using TKIP Temporal Key Integrity Protocol encryption which can be used in conjunction with a RADIUS server A Division ot Osco Systema tc Wireless Wireless Netweort Name Broadcast e c SSD Broadcast Enenie Osebie Secure Moce WPA2 Personal x Ercrypton AES p Passprrase Kay Renewal 3600 Second Figure 5 9 WPA2 Personal 25 Wireless G Cable Gateway WPA Enterprise This option features WPA used in coordination with a RADIUS server This should only be used when a RADIUS server is connected to the Gateway To use WPA Enterprise select WPA Enterprise from the Security Mode drop down menu Select a method of encryption and your RADIUS settings Then enter a Shared Secret key and a Key Renewal period e Encryption WPA offers you two encryption methods TKIP and AES with dynamic encryption keys Select the type of algorithm you want to use TKIP or AES RADIUS Se
65. r Shared Key which allows either Open System or Shared Key authentication to be used For Open System authentication the sender and the recipient do NOT use a WEP key for authentication For Shared Key authentication the sender and recipient use a WEP key for authentication If you want to use only Shared Key authentication then select Shared Key In most cases you should keep the default Open System or Shared Key When finished making your changes on this tab click the Save Settings button to save these changes or click the Cancel Changes button to undo your changes Daven of Cnc Rye ec Wireless Figure 5 16 Advanced Wireless Settings packet a unit of data sent over a network beacon internal data transmitted on your wireless network that keeps the network synchronized dtim delivery traffic indication message a message included in data packets that can increase wireless efficiency fragmentation breaking a packet into smaller units when transmitting over a network rts request to send a networking method of coordinating large packets through the RTS Threshold setting 30 Wireless G Cable Gateway WDS Tab Wireless Distribution System This feature enables the Gateway to talk to a remote device within its range so it can retransmit the signal or it can enable a wireless connection between two wired networks The other device s must support a compatible version of WDS bridging or WDS repeat
66. r or other network device within two minutes to complete the SecureEasySetup process You will be returned to the previous screen when setup has been completed Figure 5 5 Press the SecureEasySetup Button NOTE You can only add one SecureEasySetup device at a time on Only One Wireless Client Configuring the Wireless G Cable Gateway 23 ss Tab Wireless G Cable Gate When the SecureEasySetup process is complete the Basic Wireless Settings screen will appear and the Current Encryption and Status information will be updated Then repeat this procedure for each additional SecureEasySetup device If you have non SecureEasySetup devices to configure then write down the Wireless Network Name SSID for the Gateway Click the Wireless Security tab The Gateway s WPA Personal settings will appear on the Wireless Security screen Write down the Passphrase for the Gateway When you configure the wireless settings for your non SecureEasySetup devices enter the Gateway s Network Name SSID and Passphrase when you are asked for them NOTE Some devices may call the Passphrase a Pre Shared Key instead They are different names for the same key e Reset Security If you want to reset the Gateway to its factory default wireless settings SSID linksys and wireless security disabled then click the Reset Security button After the Gateway s SSID has been reset and its security disabled you can click the SecureEasySetup but
67. rea 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 the network connected to the Gateway Enter the Subnet Mask 255 255 255 0 Enter the Default Gateway 192 168 0 1 Gateway 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 Click the OK button in the Local Area Connection Properties window The Gateway is not working Verify that the Power cord and other network cables are plugged in Check the LEDs on the Gateway s front and verify that they are lit appropriately Check the settings on your PC Check the Gateway s settings Verify that your cable ISP has been given the correct MAC Address for the cable modem function can t connect to the Gateway Verify that the Gateway is properly installed LAN connections are OK and it is powered ON Make sure that your PC and the Gateway are on the same network segment If you are not sure initiate the DHCP function and let the PC get the IP address automatically 44
68. red the DHCP server will automatically assign it a new dynamic IP address DHCP Dynamic Host Configuration Protocol Servers Computers and other network devices using dynamic IP addressing are assigned a new IP address by a DHCP server The computer 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 computer on the network or another network device such as the Gateway By default the Gateway s DHCP Server function is enabled 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 Gateway see the DHCP section in Chapter 5 Configuring the Gateway dynamic ip address a temporary IP address assigned by a DHCP server dhcp dynamic host configuration protocol a protocol that lets one device on a local network known as a DHCP server assign temporary IP addresses to the other network devices typically computers Chapter 3 Getting to Know the Wireless G Cable Gateway The Back Panel The Gateway s buttons and ports where network cables are connected are located on the back panel On Off Switch Power Reset Ports 1 4 USB Cable Figure 3 1 Back Panel T
69. reen allows you to perform the advanced administration functions of Restore Factory Defaults as well as Routing and NAT disabling Status Gateway This screen provides general and status information about the Gateway Connection This screen provides information about the cable connection Local Network This screen allows you to release a DHCP client from the local network server Modem Log This screen provides a log of the built in modem s activity 20 Wireless G Cable Gate How to Access the Web based Utility To access the web based utility launch Internet Explorer or Netscape Navigator and enter the Gateway s default IP address 192 168 0 1 in the Address field Then press Enter A password request page will appear Non Windows XP users will see a similar screen Leave the User Name field blank and enter admin the default password in the Password field Then click the OK button NOTE Depending on your service provider some features and functions in the Web based Utility may not be available or may perform differently than described in the User Guide The Setup Tab The Basic Setup Tab The first screen that appears is the Basic Setup tab This tab allows you to change the Gateway s general settings Change these settings as described here and click the Save Settings button to save your changes or Cancel Changes to cancel your changes Internet Setup Internet Connection Type The Gateway supports Dynamic IP
70. rektiivin 1999 5 EY oleellisten vaatimusten ja sita koskevien n iden direktiivien muiden ehtojen mukainen Linksys Group d clare que le produit est conforme aux conditions essentielles et aux dispositions relatives la directive 1999 5 EC Belgique Dans le cas d une utilisation priv e l ext rieur d un b timent au dessus d un espace public aucun enregistrement n est n cessaire pour une distance de moins de 300m Pour une distance sup rieure 300m un enregistrement aupr s de l IBPT est requise Pour une utilisation publique l ext rieur de b timents une licence de l IBPT est requise Pour les enregistrements et licences veuillez contacter l IBPT France 2 4 GHz Bande les canaux 10 11 12 13 2457 2462 2467 et 2472 MHz respectivement sont compl tement libres d utilisation en France en utilisation int rieur Pour ce qui est des autres canaux ils peuvent tre soumis autorisation selon le d partment L utilisation en ext rieur est soumis autorisation pr alable et tr s restreint Vous pouvez contacter l Autorit de R gulation des T l communications http www art telecom fr pour de plus amples renseignements SAFETY NOTICES Caution To reduce the risk of fire use only No 26 AWG or larger telecommunication line cord Do not use this product near water for example in a wet basement or near a swimming pool Avoid using this product during an electrical storm There may be a remote risk of elect
71. ric shock from lightning 64 Appendix H Contact Information Need to contact Linksys Visit us online for information on the latest products and updates to your existing products at http www linksys com or ftp linksys com Can t find information about a product you want to buy on the web Do you want to know more about networking with Linksys products Give our advice line a call at 800 546 5797 LINKSYS Or fax your request in to 949 823 3002 If you experience problems with any Linksys product you can call us at 800 326 7114 Don t wish to call You can e mail us at support linksys com If any Linksys product proves defective during its warranty period you can call the Linksys Return Merchandise Authorization department for obtaining a Return Authorization Number at 949 823 3000 Details on Warranty and RMA issues can be found in the Warranty Information section in this Guide 65
72. rver Address Enter the RADIUS server s IP address e RADIUS Port Enter the port number used by the RADIUS server Shared Secret Enter the Shared Secret key used by the Gateway and RADIUS server e Key Renewal Enter a Key Renewal timeout period which instructs the Gateway how often it should change the encryption keys When finished making your changes on this tab click the Save Settings button to save these changes or click the Cancel Changes button to undo your changes WPA2 Enterprise This option features WPA2 used in coordination with a RADIUS server This should only be used when a RADIUS server is connected to the Gateway To use WPA2 Enterprise select WPA2 Enterprise from the Security Mode drop down menu Select a method of encryption and your RADIUS settings Then enter a Shared Secret key and a Key Renewal period e Encryption Select the encryption method you want to use AES or TKIP AES e RADIUS Server Address Enter the RADIUS server s IP address RADIUS Port Enter the port number used by the RADIUS server Shared Secret Enter the Shared Secret key used by the Gateway and RADIUS server e Key Renewal Enter a Key Renewal timeout period which instructs the Gateway how often it should change the encryption keys When finished making your changes on this tab click the Save Settings button to save these changes or click the Cancel Changes button to undo your changes Chapter 5 Configuring the Wireless G Cab
73. s G Cable Gateway Add New Hardware Wizard Installing the USB Drivers for Windows 98 1 When the Add New Hardware Wizard window appears insert the Setup CD into your CD ROM drive and click Next Figure 4 9 Add New Hardware Wizard Add New Hardware Wizard 2 Select Search for the best driver for your device Recommended and click the Next button Display a list of all the drivers in a specific location so you can select the driver you want Figure 4 10 Search for Driver Add New Hardware Wizard 3 Select CD ROM drive as the only location where Windows will search for the driver software and click the Windows will search for new drivers in its driver database Next button new drivers in on your hard drive and in any of the following selected locations Click Next to start the search I Floppy disk drives F CD ROM drive I Microsoft Windows Update I Specify a jocation E WinS8SE Files gt Browse cmn Figure 4 11 CD ROM Drive Chapter 4 Connecting the Wireless G Cable Gateway 12 Wired USB Connection to a Computer Wireless G Cable Gateway 4 Windows will notify you that it has identified multiple drivers Select The updated driver Recommended as the appropriate driver Click the Next button Windows is now ready to install the driver Click the Next button Windows will begin installing the driver for the Gateway At this point the installation may require files
74. s network or select Disable to disable it Figure 5 4 Basic Wireless Settings e Wireless Network Name SSID Enter the name for your wireless network into the field The SSID must be identical for all devices in the wireless network It is case sensitive and must not exceed 32 alphanumeric characters which may be any keyboard character Linksys recommends that you change the default SSID linksys to a unique name of your choice e Wireless Channel Select the appropriate channel from the list provided to correspond with your network settings All devices in your wireless network must use the same channel in order to function correctly Linksys wireless clients will automatically detect the wireless channel of the Gateway e Wireless Network Type If you have 802 11g and 802 11b devices in your network then keep the default setting Mixed If you have only 802 119 devices select 802 11g If you have only 802 11b devices select 802 11b If you want to disable wireless networking select Disabled Current Encryption Your wireless security encryption method will be displayed here e SecureEasySetup Button The status of the Gateway s SecureEasySetup feature is displayed here If you want to use the Gateway s SecureEasySetup feature click the SecureEasySetup button You router is now accepting wireless clients You will be asked to press the SecureEasySetup button hardware or software on your wireless client dessein caleba nas compute
75. s powered on so they can activate your account or you will not have Internet access 8 Contact your Cable ISP to activate your account Your Cable ISP will need what is called a MAC Address for the cable modem capability of the Gateway in order to set up your account The 12 digit modem MAC address is printed on a bar code label on the bottom of the Gateway Once you have given them this number your Cable ISP should be able to activate your account The Online LED flashes when the Gateway is establishing a connection to your cable ISP When the Cable is synchronized with your cable ISP the LED will be solidly lit The Gateway s hardware installation is now complete Go to Chapter 5 Configuring the Gateway Found New Hardware Wizard Locate Driver Files Where do you want Windows to search for drives files Search foe driver fles for the following hardware device Gy USB Cable Modem The wizard searches for suitable drivers in Rs diver database on your computer and in ary of the following optional search locations that you specify To start the search click Next If you are searching on a floppy disk or CD ROM drive insert the floppy disk or CD before clicking Next F CD ROM dives I Speciy a location TT Microsoft Windows Update emen Figure 4 21 CD ROM Drives Found New Hardware Wizard Driver Files Search Results The wizard has finished searching for drives files for your hardware device The wizard
76. specific name for a network of computers Download To receive a file transmitted over a network DSL Digital Subscriber Line An always on broadband connection over traditional phone lines DSSS Direct Sequence Spread Spectrum A type of radio transmission technology that includes a redundant bit pattern to lessen the probability of data lost during transmission Used in 802 11b networking DTIM Delivery Traffic Indication Message A message included in data packets that can increase wireless efficiency 56 Dynamic IP Address A temporary IP address assigned by a DHCP server Encryption Encoding data to prevent it from being read by unauthorized people Ethernet An IEEE standard network protocol that specifies how data is placed on and retrieved from a common transmission medium Finger A program that tells you the name associated with an e mail address Firewall Security measures that protect the resources of a local network from intruders Firmware 1 In network devices the programming that runs the device 2 Programming loaded into read only memory ROM or programmable read only memory PROM that cannot be altered by end users Fragmentation Breaking a packet into smaller units when transmitting over a network medium that cannot support the original size of the packet FTP File Transfer Protocol A standard protocol for sending files between computers over a TCP IP network and the Internet Full Duplex
77. t The Online LED flashes when the Gateway is establishing a connection to your cable ISP When the Cable is synchronized with your cable ISP the LED will be solidly lit The Gateway s hardware installation is now complete Go to Chapter 5 Configuring the Gateway Chapter 4 Connecting the Wireless G Cable Gateway Wired USB Connection to a Computer Figure 4 12 Select Updated Driver Add New Hardware Wizard Windows driver file search for the device Linksys WCG200 ver 2 Wireless G Cable Gateway Windows is now ready to install the best driver for this device Click Back to select a different driver or click Next to continue Location of driver Figure 4 13 Install Driver Add New Hardware Wizard Linksys WCG200 ver 2 Wireless G Cable 3 Gateway Windows has fini installing the software that your new hardware device requires Figure 4 14 Driver Installation Complete 13 Wireless G Cable Gateway Installing the USB Driver for Windows Millennium 1 Start up your PC in Windows Millennium Windows will detect new hardware connected to your PC Insert the Setup CD into your CD ROM drive 2 Select Automatic search for a better driver Recommended and click the Next button 3 Windows will begin installing the driver for the modem At this point the installation may require files from your Windows Millennium CD ROM If prompted insert your Windows Millennium CD ROM into y
78. t manually in the wireless client After you enter the Passphrase click the Generate Keys button to create WEP keys wep wired equivalent privacy a method of encrypting network data transmitted on a wireless network for greater security e Wireless WEP Keys 1 4 WEP keys enable you to create an encryption scheme for wireless network transmissions If you are not using a Passphrase then manually enter a set of values Do not leave a key field blank If you are using 64 bit WEP encryption the key must be exactly 10 hexadecimal characters in length If you are using 128 bit WEP encryption the key must be exactly 26 hexadecimal characters in length Valid hexadecimal characters are 0 9 and A F When finished making your changes on this tab click the Save Settings button to save these changes or click the Cancel Changes button to undo your changes 27 nfiguring the Wireless G Cable Gateway WEP WEP is a basic encryption method which is not as secure as WPA To use WEP select WEP from the Security Mode drop down menu Select a level of WEP encryption 64 Bit Encryption or 128 Bit Encryption Then select a Default Key choose which Key to use Then either generate a WEP key using a Passphrase or enter the WEP key manually Wireless Encryption Level An acronym for Wired Equivalent Privacy WEP is an encryption method used to protect your wireless data communications WEP uses 64 bit or 128 bit keys t
79. teway and all computers Connect the coaxial cable that is provided by your cable service provider to the Cable port that is on the back of the Gateway Connect the power adapter to the Gateway s Power port and then plug the power adapter into a power outlet Turn the On Off switch to On IMPORTANT Make sure to contact your Cable ISP with the Gateway s MAC address after the Gateway is powered on so they can activate your account or you will not have Internet access Contact your Cable ISP to activate your account Your Cable ISP will need what is called a MAC Address for the cable modem capability of the Gateway in order to set up your account The 12 digit modem MAC address is printed on a bar code label on the bottom of the Gateway Once you have given them this number your Cable ISP should be able to activate your account The Online LED flashes when the Gateway is establishing a connection to your cable ISP When the Cable is synchronized with your cable ISP the LED will be solidly lit Then turn on the PC that you want to use to configure the Gateway For initial access to the Gateway through a wireless connection make sure the computer s wireless adapter has its SSID set to linksys the Gateway s default setting and its encryption is disabled After you have accessed the Gateway you can change the Gateway and this computer s adapter settings to match the your usual network settings wireless settings If you re experiencing
80. ton to configure your wireless network with a new SSID and Passphrase or you can manually enter new settings on the Basic Wireless Settings and Wireless Security screens When finished making your changes on this tab click the Save Settings button to save these changes or click the Cancel Changes button to undo your changes Wireless Security Tab The Wireless Security settings configure the security of your wireless network There are six wireless security mode options supported by the Gateway WPA Personal WPA2 Personal WPA Enterprise WPA2 Enterprise RADIUS and WEP WPA stands for Wi Fi Protected Access which is a security standard stronger than WEP encryption WPA2 is a stronger version of WPA WEP stands for Wired Equivalent Privacy while RADIUS stands for Remote Authentication Dial In User Service These are briefly discussed here For detailed instructions on configuring wireless security for the Gateway turn to Appendix B Wireless Security If you want to disable wireless security select Disabled from the drop down menu for Security Mode e Wireless SSID Broadcast When wireless clients survey the local area for wireless networks to associate with they will detect the SSID broadcast by the Gateway To broadcast the Gateway s SSID keep the default setting Enable If you do not want to broadcast the Gateway s SSID then select Disable nfiguring the A Division ot Onen Dystans ine Fonem Viran 20 9 4 10005
81. tup information for the Gateway with you after installing your broadband connection If not you can call your ISP to request that data After you have the setup information you need for your specific type of Internet connection you can begin installation and setup of the Gateway If you want to use a computer with an Ethernet adapter to configure the Gateway continue to Wired Ethernet Connection to a Computer If you want to use a computer with a wireless adapter to configure the Gateway continue to Wireless Connection to a Computer If you want to use a USB connection to configure the Gateway continue to Wired USB Connection to a Computer Wired Ethernet Connection to a Computer 1 Before you begin make sure that all of your network s hardware is powered off including the Gateway and all computers 2 Connect the coaxial cable from your ISP or cable company to the Cable port on the back panel of the Gateway The other end of the coaxial cable should be connected according to the cable company s instructions Figure 4 1 Cable Connection Connect one end of an Ethernet network cable to one of the Ethernet ports labeled 1 4 on the back of the Gateway and the other end to an Ethernet port on a computer Repeat this step to connect more computers a switch or other network devices to the Gateway NOTE If your PC s Ethernet adapter is not set up please refer to your Ethernet adapter s documentation for mor
82. use for each application TCP UDP or Both IP Address Enter the IP Address of the system to which the traffic should be forwarded Click the Enable checkbox for each port forwarding setting you want the Gateway to use When finished making your changes on this tab click the Save Settings button to save these changes or click the Cancel Changes button to undo your changes Applications amp Gaming 7 Fe ue ve ted ue ve ERREG 51515 id Le Le ana nnaninnnns III WIT 37177771711 Figure 5 24 Port Range Forwarding 36 Wireless G Cable Gateway Port Triggering Port Triggering is used for special applications that can request a port to be opened on demand For this feature the Gateway will watch outgoing data for specific port numbers The Gateway will remember the IP address of the computer that sends a transmission requesting data so that when the requested data returns through the Gateway the data is pulled back to the proper computer by way of IP address and port mapping rules e Application Enter the name you wish to give each application Start Port and End Port Enter the starting and ending Triggered Range numbers and the Incoming Forwarded Range numbers of the port s you wish to forward Protocol Select the type of protocol you wish to use for each application TCP UDP or Both Click the Enable checkbox for each port triggering setting you
83. users on the public Internet side cannot see your computers This is how your network remains private The Gateway protects your network by inspecting every packet coming in through the Internet port before delivery to the appropriate computer on your network The Gateway 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 computer on the LAN side Remember that the Gateway s ports connect to two sides The LAN ports connect to the LAN and the Cable port connects to the Internet The LAN ports transmit data at 10 100Mbps IP Addresses What s an IP Address IP stands for Internet Protocol Every device on an IP based network including computers print servers and Gateways requires an IP address to identify its location or address on the network This applies to both the Internet and LAN connections There are two ways of assigning an IP address to your network devices You can assign static IP addresses or use the Gateway to assign IP addresses dynamically Static IP Addresses A static IP address is a fixed IP address that you assign manually to a computer 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 must be unique and are commonly used with
84. ve these changes or click the Cancel Changes button to undo your changes Chapter 5 Configuring the Wireless G Cable Gateway The Setup Tab Internet Connection Type eae Optional N required by some ISP Gatoweay iP Local P Adress Network Address Serum Settings DHCP Figure 5 3 Static IP 22 Wireless G Cable Gatewa y The Wireless Tab Basic Wireless Settings Tab Li Division of Onco Systems bc There are two ways to configure the Gateway s wireless settings SecureEasySetup and manual configuration If you have other SecureEasySetup devices such as notebook adapters or printers then you can use the Gateway s SecureEasySetup feature to configure your wireless network Follow the instructions for the SecureEasySetup button feature a Wireless Wirebess Netwrort G Enti C Oissbie Wireless Network Name SSO linksys Wireless Charret NOTE SecureEasySetup uses WPA Personal encryption If your current wireless devices do not support WPA Personal security then you cannot use SecureEasySetup on your network You will need to manually configure your network security using the encryption supported by your existing devices Wireless Network Type Current Eneryption SecureEasySetup Button If you do not have other SecureEasySetup devices then enter your wireless settings on this screen e Wireless Network Select Enable to enable your wireles
85. vigator is set to Direct connection to the Internet What is DMZ Hosting Demilitarized Zone DMZ allows one IP address 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 if you 47 want to use DMZ Hosting To get the LAN IP address see Appendix C 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 Gateway No Does the Gateway pass PPTP packets or actively route PPTP sessions The Gateway allows PPTP packets to pass through Is the Gateway cross platform compatible Any platform that supports Ethernet and TCP IP is compatible with the Gateway How many ports can be simultaneously forwarded Theoretically the Gateway can establish 520 sessions at the same time but you can only forward 10 ranges of ports Does the Gateway replace a modem Is there a cable modem in the Gateway Yes The Gateway has an integrated cable modem so this product will replace your current cable modem What are the advanced features of the Gateway The Gateway s advanced features include Filters Forwarding and DMZ host How do get mIRC to work with the Gateway Set port forwarding to 113 for the computer on which you are using mIRC If you are experiencing difficulty after setting the port forwarding try changing the Direct Client to Client DCC
86. want the Gateway to use When finished making your changes on this tab click the Save Settings button to save these changes or click the Cancel Changes button to undo your changes DMZ The DMZ screen allows one local user to be exposed to the Internet for use of a special purpose service such as Internet gaming and videoconferencing through DMZ Hosting DMZ hosting forwards all the ports for one computer at the same time which differs from Port Range Forwarding which can only forward a maximum of 10 ranges of ports DMZ Hosting This feature allows one local user to be exposed to the Internet for use of a special purpose service such as Internet gaming and videoconferencing To use this feature select Enable To disable DMZ select Disable e DMZ Host IP Address To expose one computer enter the computer s IP address To get the IP address of a computer refer to Appendix C Finding the MAC Address and IP Address for Your Ethernet Adapter When finished making your changes on this tab click the Save Settings button to save these changes or click the Cancel Changes button to undo your changes Chapter The App 5 Configuring the Wireless G Cable Gateway ications and Gamin Applications amp Gaming Applications amp Gaming i 14 i t z i a7 i asa aagiagaadaiag Le ue ve ve ve ve ve id ue Figure 5 25 Port Triggering
87. wants to make wireless networking as safe and easy for you as possible The current generation of Linksys products provide several network security features but they require specific action on your part for implementation So keep the following in mind whenever you are setting up or using your wireless network Security Precautions The following is a complete list of security precautions to take at least steps 1 through 5 should be followed 1 Change the default SSID 2 Disable SSID Broadcast 3 Change the default password for the Administrator account 4 Enable MAC Address Filtering 5 Change the SSID periodically 6 Use the highest encryption algorithm possible Use WPA if it is available Please note that this may reduce your network performance 7 Change the encryption keys periodically For information on implementing these security features refer to Chapter 5 Configuring the Wireless G Cable Gateway Security Threats Facing Wireless Networks Wireless networks are easy to find Hackers know that in order to join a wireless network wireless networking products first listen for beacon messages These messages can be easily decrypted and contain much of the network s information such as the network s SSID Service Set Identifier Here are the steps you can take Change the administrator s password regularly With every wireless networking device you use keep in mind that network settings SSID WEP keys
88. xt button Chapter 4 Connecting the Wireless G Cable Gateway Wired USB Connection to a Computer Found New Hardware USB Cable Modem SJ Figure 4 18 Found New Hardware Welcome to the Found New Hardware Wizard This wizard helps you install a device driver for a N hardware device To continue click Next Figure 4 19 Welcome Found New Hardware Wizard Install Hardware Device Drivers A device driver is a software program that enables a hardware device to work with an operating system This wizard will complete the installation for this device a USB Cable Modem A device driver is a software program that makes a hardware device work Windows Tas diet Mos fos VO Fats Ca To ECS divat Faas Erid clos tie installation click Next What do you want the wizard to do Search for a suitable driver for my device recommended c DD ot a Er rene fox Govice 30 Ural can choose amp treed es Dr toes Figure 4 20 Search for Driver 15 4 Windows will now search for the driver software Select only CD ROM drives and click the Next button 5 Windows will notify you that it has located the appropriate driver and is ready to install it Click the Next button 6 When Windows has completed installing the driver click the Finish button 7 The Windows 2000 driver installation is complete IMPORTANT Make sure to contact your Cable ISP with the Gateway s MAC address after the Gateway i

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