LINKSYS WRK54GV3 Wireless-G Broadband Router with 4-Port Switch User Manual Manual 2

LINKSYS LLC Wireless-G Broadband Router with 4-Port Switch Manual 2

Contents

Manual 2

23Chapter 5: Configuring the Wireless-G Broadband RouterThe Wireless Tab - Wireless SecurityWireless-G Broadband RouterWPA2 Personal. WPA2 gives you two encryption methods, TKIP and AES, with dynamic encryption keys. Select the type of algorithm, AES, or TKIP + AES. Enter a WPA Shared Key of 8-63 characters. Then enter a Group Key Renewal period, which instructs the Router how often it should change the encryption keys.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 Router.) First, select the type of WPA algorithm you want to use, AES, or TKIP + AES. Enter the RADIUS server’s IP Address and port number, along with a key shared between the Router and the server. Last, enter a Key Renewal Timeout, which instructs the Router how often it should change the encryption keys.Figure 5-21: Wireless Tab - Wireless Security (WPA2 Personal)Figure 5-22: Wireless Tab - Wireless Security (WPA2 Enterprise)
24Chapter 5: Configuring the Wireless-G Broadband RouterThe Wireless Tab - Wireless SecurityWireless-G Broadband RouterRADIUS. This option features WEP used in coordination with a RADIUS server. (This should only be used when a RADIUS server is connected to the Router.) First, enter the RADIUS server’s IP Address and port number, along with a key shared between the Router and the server. Then, select a Default Transmit Key (choose which Key to use), and a level of WEP encryption, 64 bits 10 hex digits or 128 bits 26 hex digits. Last, either generate a WEP key using the Passphrase or enter the WEP key manually.WEP. WEP is a basic encryption method, which is not as secure as WPA. To use WEP, select a Default Transmit Key (choose which Key to use), and a level of WEP encryption, 64 bits 10 hex digits or 128 bits 26 hex digits. Then either generate a WEP key using the Passphrase or enter the WEP key manually.Change these settings as described here and click the Save Settings button to apply your changes or Cancel Changes to cancel your changes. For detailed instructions on configuring wireless security for the Router, turn to “Appendix B: Wireless Security.”Figure 5-23: Wireless Tab - Wireless Security (RADIUS)IMPORTANT: If you are using WEP encryption, always remember that each device in your wireless network MUST use the same WEP encryption method and encryption key, or else your wireless network will not function properly.Figure 5-24: Wireless Tab - Wireless Security (WEP)
25Chapter 5: Configuring the Wireless-G Broadband RouterThe Wireless Tab - Wireless MAC FilterWireless-G Broadband RouterThe Wireless Tab - Wireless MAC FilterWireless access can be filtered by using the MAC addresses of the wireless devices transmitting within your network’s radius. Wireless MAC Filter. To filter wireless users by MAC Address, either permitting or blocking access, click Enable. If you do not wish to filter users by MAC Address, select Disable.Prevent. Clicking this button will block wireless access by MAC Address.Permit Only. Clicking this button will allow wireless access by MAC Address.Edit MAC Address Filter List. Clicking this button will open the MAC Address Filter List. On this screen, you can list users, by MAC Address, to whom you wish to provide or block access. For easy reference, click the Wireless Client MAC List button to display a list of network users by MAC Address.Change these settings as described here and click the Save Settings button to apply your changes or Cancel Changes to cancel your changes.Figure 5-25: Wireless Tab - Wireless MAC FilterFigure 5-26: MAC Address Filter List
26Chapter 5: Configuring the Wireless-G Broadband RouterThe Wireless Tab - Advanced Wireless SettingsWireless-G Broadband RouterThe Wireless Tab - Advanced Wireless SettingsThis tab is used to set up the Router’s advanced wireless functions. These settings should only be adjusted by an expert administrator as incorrect settings can reduce wireless performance.Transmission Rate. The rate of data transmission should be set depending on the speed of your wireless network. You can select from a range of transmission speeds, or you can select Auto to have the Router automatically use the fastest possible data rate and enable the Auto-Fallback feature. Auto-Fallback will negotiate the best possible connection speed between the Router and a wireless client. The default value is Auto.Beacon Interval. The default value is 100. Enter a value between 20 and 1,000 milliseconds. The Beacon Interval value indicates the frequency interval of the beacon. A beacon is a packet broadcast by the Router to synchronize the wireless network.DTIM Interval. This value, between 1 and 255, 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 Router 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. The default value is 1.Fragmentation Threshold. This value 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 increase the Fragmentation Threshold. Setting the Fragmentation Threshold too low may result in poor network performance. Only minor reduction of the default value is recommended. In most cases, it should remain at its default value of 2346.RTS Threshold. Should you encounter inconsistent data flow, only minor reduction of the default value, 2347, is recommended. If a network packet is smaller than the preset RTS threshold size, the RTS/CTS mechanism will not be enabled. The Router 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. The RTS Threshold value should remain at its default value of 2347. Frame Burst. Enabling this option should provide your network with greater performance, depending on the manufacturer of your wireless products. If you are not sure how to use this option, keep the default, Disable.Change these settings as described here and click the Save Settings button to apply your changes or Cancel Changes to cancel your changes.Figure 5-27: Wireless Tab - Advanced Wireless Settings
27Chapter 5: Configuring the Wireless-G Broadband RouterThe Security Tab - FirewallWireless-G Broadband RouterThe Security Tab - FirewallBlock WAN Requests. Enable the Block WAN Request feature by checking the box beside 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. Select Disabled to allow anonymous Internet requests.Filter Multicast. Multicasting allows for multiple transmissions to specific recipients at the same time. If multicasting is permitted, then the Router will allow IP multicast packets to be forwarded to the appropriate computers. Select Enabled to filter multicasting, or Disabled to disable this feature.Filter Internet NAT Redirection. This feature uses port forwarding to block access to local servers from local networked computers. Select Enabled to filter Internet NAT redirection, or Disabled to disable this feature.Filter IDENT (Port 113). This feature keeps port 113 from being scanned by devices outside of your local network. Select Enabled to filter port 113, or Disabled to disable this feature.Change these settings as described here and click the Save Settings button to apply your changes or Cancel Changes to cancel your changes.The Security Tab - VPN PassthroughUse the settings on this tab to allow VPN tunnels using IPSec, PPTP, or L2TP protocols to pass through the Router’s firewall.IPSec Pass-through. Internet Protocol Security (IPSec), enabled by default, is a suite of protocols used to implement secure exchange of packets at the IP layer. To turn off this feature, click Disable. PPTP Pass-through. Point-to-Point Tunneling Protocol (PPTP), enabled by default, allows the Point-to-Point Protocol (PPP) to be tunneled through an IP network. To turn off this feature, click Disable. L2TP Pass-through. Layer 2 Tunneling Protocol is the method used to enable Point-to-Point sessions via the Internet on the Layer 2 level. To allow L2TP tunnels to pass through the Router, click Enable. L2TP Pass-Through is enabled by default.Change these settings as described here and click the Save Settings button to apply your changes or Cancel Changes to cancel your changes.Figure 5-28: Security Tab - FirewallFigure 5-29: Security Tab - VPN PassthroughNOTE: The Wireless-G Broadband Router always has its firewall protection enabled.
28Chapter 5: Configuring the Wireless-G Broadband RouterThe Access Restrictions Tab - Internet AccessWireless-G Broadband RouterFigure 5-30: Access Restrictions Tab - Internet AccessFigure 5-31: Internet Policy SummaryFigure 5-32: List of PCsThe Access Restrictions Tab - Internet AccessThe Internet Access screen allows you to block or allow specific kinds of Internet usage and traffic, such as Internet access, designated services, websites, and inbound traffic during specific days and times.Internet Access Policy. Access can be managed by a policy. Use the settings on this screen to establish an access policy (after the Save Settings button is clicked). Selecting a policy from the drop-down menu will display that policy’s settings. To delete a policy, select that policy’s number and click the Delete button. To view all the policies, click the Summary button. (Policies can be deleted from the Summary screen by selecting the policy or policies and clicking the Delete button. To return to the Internet Access tab, click the Close button.)Status. Policies are disabled by default. To enable a policy, select the policy number from the drop-down menu, and click the radio button beside Enable.You can create two kinds of policies, one kind to manage Internet access and another kind to manage inbound traffic.To create an Internet Access policy:1. Select a number from the Internet Access Policy drop-down menu.2. To enable this policy, click the radio button beside Enable.3. Enter a Policy Name in the field provided. 4. Select Internet Access as the Policy Type.5. Click the Edit List button to select which PCs will be affected by the policy. The List of PCs screen will appear. You can select a PC by MAC Address or IP Address. You can also enter a range of IP Addresses if you want this policy to affect a group of PCs. After making your changes, click the Save Settings button to apply your changes or Cancel Changes to cancel your changes. Then click the Close button. 6. Click the appropriate option, Deny or Allow, depending on whether you want to block or allow Internet access for the PCs you listed on the List of PCs screen.7. Decide which days and what times you want this policy to be enforced. Select the individual days during which the policy will be in effect, or select Everyday. Then enter a range of hours and minutes during which the policy will be in effect, or select 24 Hours.8. You can filter access to various services accessed over the Internet, such as FTP or telnet, by selecting services from the drop-down menus next to Blocked Services. (You can block up to 20 services.)
29Chapter 5: Configuring the Wireless-G Broadband RouterThe Access Restrictions Tab - Internet AccessWireless-G Broadband RouterThen, enter the range of ports you want to filter.If the service you want to block is not listed or you want to edit a service’s settings, then click the Add/Edit Service button. Then the Port Services screen will appear.To add a service, enter the service’s name in the Service Name field. Select its protocol from the Protocol drop-down menu, and enter its range in the Port Range fields. Then click the Add button.To modify a service, select it from the list on the right. Change its name, protocol setting, or port range. Then click the Modify button.To delete a service, select it from the list on the right. Then click the Delete button.When you are finished making changes on the Port Services screen, click the Apply button to save changes. If you want to cancel your changes, click the Cancel button. To close the Port Services screen and return to the Access Restrictions screen, click the Close button.9. If you want to block websites with specific URL addresses, enter each URL in a separate field next to Website Blocking by URL Address.10. If you want to block websites using specific keywords, enter each keyword in a separate field next to Website Blocking by Keyword.Change these settings as described here and click the Save Settings button to apply your changes or Cancel Changes to cancel your changes.Figure 5-33: Port Services
30Chapter 5: Configuring the Wireless-G Broadband RouterThe Applications and Gaming Tab - Port Range ForwardWireless-G Broadband RouterThe Applications and Gaming Tab - Port Range ForwardThe Applications and Gaming Tab allows you to set 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.)To forward a port, enter the information on each line for the criteria required. The criteria are described here.Application. In this field, enter the name you wish to give the application. Each name can be up to 12 characters.Start/End. This is the port range. Enter the number that starts the port range under Start and the number that ends the range under End.Protocol. Enter the protocol used for this application, either TCP or UDP, or Both.IP Address. For each application, enter the IP Address of the PC running the specific application.Enable. Click the Enable checkbox to enable port forwarding for the relevant application.Change these settings as described here and click the Save Settings button to apply your changes or Cancel Changes to cancel your changes. Figure 5-34: Applications and Gaming Tab - Port Range Forward
31Chapter 5: Configuring the Wireless-G Broadband RouterThe Applications & Gaming Tab - Port TriggeringWireless-G Broadband RouterThe Applications & Gaming Tab - Port TriggeringThe Port Triggering screen allows the Router to watch outgoing data for specific port numbers. The IP address of the computer that sends the matching data is remembered by the Router, so that when the requested data returns through the Router, the data is pulled back to the proper computer by way of IP address and port mapping rules.Port TriggeringApplication. Enter the application name of the trigger.Triggered RangeFor each application, list the triggered port number range. Check with the Internet application documentation for the port number(s) needed.Start Port. Enter the starting port number of the Triggered Range.End Port. Enter the ending port number of the Triggered Range.Forwarded RangeFor each application, list the forwarded port number range. Check with the Internet application documentation for the port number(s) needed.Start Port. Enter the starting port number of the Forwarded Range.End Port. Enter the ending port number of the Forwarded Range.Change these settings as described here and click the Save Settings button to apply your changes or Cancel Changes to cancel your changes. Figure 5-35: Applications and Gaming Tab - Port Triggering
32Chapter 5: Configuring the Wireless-G Broadband RouterThe Applications and Gaming Tab - DMZWireless-G Broadband RouterFigure 5-36: Applications and Gaming Tab - DMZThe Applications and Gaming Tab - DMZThe DMZ feature allows one network user to be exposed to the Internet for use of a special-purpose service such as Internet gaming or videoconferencing. DMZ hosting forwards all the ports at the same time to one PC. The Port Range Forward feature is more secure because it only opens the ports you want to have opened, while DMZ hosting opens all the ports of one computer, exposing the computer to the Internet. Any PC whose port is being forwarded must 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.To expose one PC, select Enable. Then, enter the computer's IP address in the DMZ Host IP Address field.Change these settings as described here and click the Save Settings button to apply your changes or Cancel Changes to cancel your changes. The Applications and Gaming Tab - QoSTwo types of Quality of Service (QoS) are available. Wireless QoS controls devices that are wirelessly communicating with the Router. QoS controls devices plugged into the Router with an Ethernet cable.Wireless QoSWMM Support. Wireless QoS is also referred to as Wi-Fi Multi Media (WMM). Select Enable to utilize WMM if you are using other wireless devices that are also WMM certified.No Acknowledgement. Enable this option if you would like to disable acknowledgement. When enabled, the Router will not resent data if an error occurs.QoSIn this section, you can set priority based on a type of Category (such as an Application, Port Range, or MAC Address). There are four priories you can set: High, Medium, Normal, or Low. Enable or Disable to set the Internet Access priority.Internet Access Priority. To limit outgoing bandwidth for the QoS policies in use, select Enable. Otherwise, select Disable.Upstream Bandwidth. This setting allows you to limit the outgoing bandwidth for the QoS policies in use, so you can control how much bandwidth a particular application is allowed to use. Enter the bandwidth in the field. Figure 5-37: Applications and Gaming Tab - QOS
33Chapter 5: Configuring the Wireless-G Broadband RouterThe Applications and Gaming Tab - QoSWireless-G Broadband RouterCategory. From this drop-down menu, you can select the Category for which you will set bandwidth priority. These Categories include applications, ethernet ports, MAC addresses, and online games.Application. With this option you can select None, Add a New Application, Online Game, or select from the list of applications you want to set. To create a new entry, select Add a New Application, and refer to the Add a New Application section.Priority. Select the bandwidth priority for the application you selected. Select High, Medium, Normal, or Low for the bandwidth you need for that application. Don’t set all applications to High, because this will defeat the purpose of allocating the available bandwidth. If you want to select below normal bandwidth, select Low. Depending on the application, a few attempts may be needed to achieve your goal. Once you have made your selection, click Add to add to the Summary list. Add a New ApplicationEnter a Name Enter any name to indicate the name of the entry.Category Select from Port Range or MAC Address for the Router to use to set the bandwidth priority. Port Range If you selected Port Range, then this category will be available. It allows you to enter the port range that the application will be using. For example, if you want to allocate bandwidth for FTP, you can enter 21-21. If you need services for an application that uses from 1000 to 1250, you enter 1000-1250 as your settings. You can have up to three ranges to define for this bandwidth allocation. Port numbers can range from 1 to 65535. Check your application's documentation for details on the service ports used.MAC Address If you selected MAC Address, then this category will be available. Enter the 12 hexadecimal digit MAC Address to represent the device you want to set as a bandwidth priority. This is a unique identifier for your network device. When the Router identifies the device entered, the Router will allocate the priority set for that entry. Check the device’s documentation to obtain the MAC Address.Priority Select the bandwidth priority for the application you selected. Select High, Medium, Normal, or Low for the bandwidth, but don’t set all applications to High. Once you have made your selection, click Add to add to the Summary list. Figure 5-38: Applications and Gaming Tab - QOS Adding an New Application
34Chapter 5: Configuring the Wireless-G Broadband RouterThe Applications and Gaming Tab - QoSWireless-G Broadband RouterSummary. This section will display a summary of all the categories of applications with QoS assigned.Priority This displays the bandwidth allocation priority of High, Medium, Normal, or Low, that you set for the application.Name This displays the application name or the entries you entered to be allocated.Information This displays the Port Range or MAC Address entered when you added a new application. If a pre-configured application was selected, there will be no valid entry shown in this section.Remove This button allows you to remove the application entry. To remove the entry, click the Remove button.Edit This button allows you to edit the application entry. To edit the entry, click the Edit button.Change these settings as described here and click the Save Settings button to apply your changes or Cancel Changes to cancel your changes.
35Chapter 5: Configuring the Wireless-G Broadband RouterThe Administration Tab - ManagementWireless-G Broadband RouterThe Administration Tab - ManagementThis section of the Administration tab allows the network’s administrator to manage specific Router functions for access and security.Local Router Access. You can change the Router’s password from here. Enter a new Router password and then type it again in the Re-enter to confirm field to confirm.Web Access. HTTP (HyperText Transport Protocol) - The communications protocol used to connect to servers on the World Wide Web. HTTPS - Uses SSL (Secured Socket Layer) to encrypt data transmitted for higher security. Select HTTP or HTTPS. Wireless Access Web - If you are using your Wireless Router in a public domain where you are giving wireless access to your guests, you can disable wireless access to the router’s web-based utility. You will only be able to access the web-based utility via a wired connection if you disable the setting. Select Enable to enable wireless access to the Router’s web-based utility or Disable to disable wireless access to the utility.Remote Router Access. To access the Router remotely, from outside the network, verify that Enable is selected. Then, enter the port number that will be open to outside access. You will need to enter the Router’s password when accessing the Router this way, as usual. To utilize this feature, Web Access HTTPS must be enabled.UPnP. When using UPnP features, select Enable. Because allowing this may present a risk to security, this feature is disabled by default.Change these settings as described here and click the Save Settings button to apply your changes or Cancel Changes to cancel your changes. The Administration Tab - LogThe Router can keep logs of all traffic for your Internet connection. To disable the Log function, keep the default setting, Disable. To monitor traffic between the network and the Internet, select Enable. When you wish to view the logs, click Incoming Log or Outgoing Log, depending on which you wish to view.Change these settings as described here and click the Save Settings button to apply your changes or Cancel Changes to cancel your changes. Figure 5-39: Administration Tab - ManagementFigure 5-40: Administration Tab - Log
36Chapter 5: Configuring the Wireless-G Broadband RouterThe Administration Tab - DiagnosticsWireless-G Broadband RouterThe Administration Tab - DiagnosticsThe diagnostic tests (Ping and Traceroute) allow you to check the connections of your network components.Ping Test. The Ping test will check the status of a connection. Click the Ping button to open the Ping Test screen. Enter the address of the PC whose connection you wish to test and how many times you wish to test it. Then, click the Ping button. The Ping Test screen will then display the test results. To stop the test, click the Stop button. Click the Clear Log button to clear the screen. Click the Close button to return to the Diagnostics screen.Traceroute Test. To test the performance of a connect, click the Traceroute button. Enter the address of the PC whose connection you wish to test and click the Traceroute button. The Traceroute screen will then display the test results. To stop the test, click the Stop button. Click the Clear Log button to clear the screen. Click the Close button to return to the Diagnostics screen.Change these settings as described here and click the Save Settings button to apply your changes or Cancel Changes to cancel your changes. Figure 5-41: Administration Tab - DiagnosticsFigure 5-42: The Ping TestFigure 5-43: The Traceroute Test
37Chapter 5: Configuring the Wireless-G Broadband RouterThe Administration Tab - Factory DefaultsWireless-G Broadband RouterThe Administration Tab - Factory DefaultsClick the Yes button to reset all configuration settings to their default values, and then click the Save Settings button. Any settings you have saved will be lost when the default settings are restored. This feature is disabled by default.The Administration Tab - Firmware UpgradeFirmware can be upgraded by clicking the Upgrade button after browsing for the firmware, which you can download from the Linksys website. Do not upgrade your firmware unless you are experiencing problems with the Router. For more information about upgrading firmware, refer to “Appendix C: Upgrading Firmware”.The Administration Tab - Config ManagementThis screen is used to back up or restore the Router’s configuration file.To back up the Router’s configuration file, click the Backup button. Then follow the on-screen instructions.To restore the Router’s configuration file, click the Browse button to locate the file, and follow the on-screen instructions. After you have selected the file, click the Restore button.Change these settings as described here and click the Save Settings button to apply your changes or Cancel Changes to cancel your changesFigure 5-45: Administration Tab - Firmware UpgradeFigure 5-44: Administration Tab - Factory DefaultsFigure 5-46: Administration Tab - Config Management
38Chapter 5: Configuring the Wireless-G Broadband RouterThe Status Tab - RouterWireless-G Broadband RouterThe Status Tab - RouterThe Router screen on the Status Tab displays the Router’s current status. Click the Refresh button to update the information displayed on this screen.Firmware Version. This is the Router’s current firmware.Current Time. This shows the time, as you set on the Setup Tab.MAC Address. This is the Router’s MAC Address, as seen by your ISP.Router Name. This is the specific name for the Router, which you set on the Setup Tab.Host Name. If required by your ISP, this would have been entered on the Setup Tab.Domain Name. If required by your ISP, this would have been entered on the Setup Tab.Configuration Type. This shows the information required by your ISP for connection to the Internet. This information was entered on the Setup Tab. You can Connect or Disconnect your connection here by clicking on that button. Figure 5-47: Status Tab - Router
39Chapter 5: Configuring the Wireless-G Broadband RouterThe Status Tab - Local NetworkWireless-G Broadband RouterThe Status Tab - Local NetworkThe Local Network screen on the Status Tab displays the status of your network. Click the Refresh button to update the information displayed on this screen.MAC Address. This is the Router’s MAC Address, as seen on your local, Ethernet network.IP Address. This shows the Router’s IP Address, as it appears on your local, Ethernet network.Subnet Mask. When the Router is using a Subnet Mask, it is shown here.DHCP Server. If you are using the Router as a DHCP server, that will be displayed here.Start IP Address. For the range of IP Addresses used by devices on your local, Ethernet network, the beginning of that range is shown here.End IP Address. For the range of IP Addresses used by devices on your local, Ethernet network, the end of that range is shown here.DHCP Clients Table. Clicking this button will open a screen to show you which PCs are utilizing the Router as a DHCP server. You can delete PCs from that list, and sever their connections, by checking a Delete box and clicking the Delete button.The Status Tab - WirelessThe Wireless screen on the Status Tab displays the status of your wireless network. Click the Refresh button to update the information displayed on this screen.MAC Address. This is the Router’s MAC Address, as seen on your local, wireless network.Mode. As selected from the Wireless tab, this will display the wireless mode (Mixed, G-Only, or Disabled) used by the network.SSID. As entered on the Wireless tab, this will display the wireless network name or SSID.Channel. As entered on the Wireless tab, this will display the channel on which your wireless network is broadcasting.Encryption Function. As selected on the Security Tab, this will display what type of encryption the Router uses for security. Figure 5-50: Status Tab - WirelessFigure 5-48: Status Tab - Local NetworkFigure 5-49: DHCP Clients Table
40Appendix A: TroubleshootingCommon Problems and SolutionsWireless-G Broadband RouterAppendix A: TroubleshootingThis 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 Router. 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/international.Common Problems and Solutions1. I’m trying to access the Router’s Web-based Utility, but I do not see the login screen. Instead, I see a screen saying, “404 Forbidden.”If you are using Windows Explorer, perform the following steps until you see the Web-based Utility’s login screen (Netscape Navigator will require similar steps):1. Click File. Make sure Work Offline is NOT checked.2. Press CTRL + F5. This is a hard refresh, which will force Windows Explorer to load new webpages, not cached ones.3. Click Tools. Click Internet Options. Click the Security tab. Click the Default level button. Make sure the security level is Medium or lower. Then click the OK button.2. I need to set a static IP address on a PC.You can assign a static IP address to a PC by performing the following steps:• For Windows 98SE 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-> 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. In the 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 Router. Make sure that each IP address is unique for each PC 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 Router. 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., John for Host and home for Domain). Enter the DNS entry provided by your ISP. If your ISP has not provided the DNS IP address, contact your ISP to get that information or go to its website for the information.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.
41Appendix A: TroubleshootingCommon Problems and SolutionsWireless-G Broadband Router• For Windows 2000:1. Click Start, 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 Router. 5. Enter the Subnet Mask, 255.255.255.0.6. Enter the Default Gateway, 192.168.1.1 (Router’s default IP address).7. 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.8. Click the OK button in the Internet Protocol (TCP/IP) Properties window, and click the OK button in the Local Area Connection Properties window.9. Restart the computer if asked.• For Windows XP:The following instructions assume you are running Windows XP with the default interface. If you are using the Classic interface (where the icons and menus look like previous Windows versions), please follow the instructions for Windows 2000.1. Click Start and Control Panel. 2. Click the Network and Internet Connections icon and then the Network Connections icon.3. Right-click the Local Area Connection that is associated with the Ethernet adapter you are using, and select the Properties option.4. In the This connection uses the following items box, highlight Internet Protocol (TCP/IP). Click the Properties button.5. Enter a unique IP address that is not used by any other computer on the network connected to the Router. 6. Enter the Subnet Mask, 255.255.255.0.7. Enter the Default Gateway, 192.168.1.1 (Router’s default IP address).8. 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.9. Click the OK button in the Internet Protocol (TCP/IP) Properties window. Click the OK button in the Local Area Connection Properties window.3. I want to test my Internet connection.A Check your TCP/IP settings. For Windows 98SE, Me, 2000, and XP:• Refer to Windows Help for details. Make sure Obtain IP address automatically is selected in the settings.
42Appendix A: TroubleshootingCommon Problems and SolutionsWireless-G Broadband RouterB Open a command prompt.For Windows 98SE and Me: • Click Start and Run. In the Open field, type command. Press the Enter key or click the OK button.For Windows 2000 and XP:• Click Start and Run. In the Open field, type cmd. Press the Enter key or click the OK button. In the command prompt, type ping 192.168.1.1 and press the Enter key. • If you get a reply, the computer is communicating with the Router.• If you do NOT get a reply, please check the cable, and make sure Obtain an IP address automatically is selected in the TCP/IP settings for your Ethernet adapter.C In the command prompt, type ping followed by your Internet or WAN IP address and press the Enter key. The Internet or WAN IP Address can be found on the Status screen of the Router’s web-based utility. For example, if your Internet or WAN IP address is 1.2.3.4, you would enter ping 1.2.3.4 and press the Enter key.• If you get a reply, the computer is connected to the Router.• If you do NOT get a reply, try the ping command from a different computer to verify that your original computer is not the cause of the problem.D In the command prompt, type ping www.yahoo.com and press the Enter key. • If you get a reply, the computer is connected to the Internet. If you cannot open a webpage, try the ping command from a different computer to verify that your original computer is not the cause of the problem.• If you do NOT get a reply, there may be a problem with the connection. Try the ping command from a different computer to verify that your original computer is not the cause of the problem.4. I am not getting an IP address on the Internet with my Internet connection.• Refer to “Problem #3, I want to test my Internet connection” to verify that you have connectivity.• If you need to register the MAC address of your Ethernet adapter with your ISP, please see “Appendix E: Finding the MAC address and IP Address for Your Ethernet Adapter.” If you need to clone the MAC address of your Ethernet adapter onto the Router, see the System section of “Chapter 6: Configuring the Wireless-G Broadband Router” for details.• Make sure you are using the right Internet connection settings. Contact your ISP to see if your Internet connection type is DHCP, Static IP Address, or PPPoE (commonly used by DSL consumers). Please refer to the Setup section of “Chapter 6: Configuring the Wireless-G Broadband Router” for details on Internet connection settings.• Make sure you have the right cable. Check to see if the Internet column has a solidly lit Link/Act LED. • Make sure the cable connecting from your cable or DSL modem is connected to the Router’s Internet port. Verify that the Status page of the Router’s web-based utility shows a valid IP address from your ISP.• Turn off the computer, Router, and cable/DSL modem. Wait 30 seconds, and then turn on the Router, cable/DSL modem, and computer. Check the Status tab of the Router’s web-based utility to see if you get an IP address.
43Appendix A: TroubleshootingCommon Problems and SolutionsWireless-G Broadband Router5. I am not able to access the Setup page of the Router’s web-based utility.• Refer to “Problem #3, I want to test my Internet connection” to verify that your computer is properly connected to the Router.• Refer to “Appendix E: Finding the MAC Address and IP address for Your Ethernet Adapter” to verify that your computer has an IP Address, Subnet Mask, Gateway, and DNS.• Set a static IP address on your system; refer to “Problem #2: I need to set a static IP address.”• Refer to “Problem #10: I am a PPPoE user, and I need to remove the proxy settings or the dial-up pop-up window.”6. I need to set up a server behind my Router and make it available to the public.To use a server like a web, ftp, or mail server, you need to know the respective port numbers they are using. For example, port 80 (HTTP) is used for web; port 21 (FTP) is used for FTP, and port 25 (SMTP outgoing) and port 110 (POP3 incoming) are used for the mail server. You can get more information by viewing the documentation provided with the server you installed.Follow these steps to set up port forwarding through the Router’s web-based utility. We will be setting up web, ftp, and mail servers.1. Access the Router’s web-based utility by going to http://192.168.1.1 or the IP address of the Router. Go to the Applications & Gaming => Port Range Forward tab. 2. Enter any name you want to use for the Application.3. Enter the Start and End Port range of the service you are using. For example, if you have a web server, you would enter the range 80 to 80. 4. Select the protocol(s) you will be using, TCP and/or UDP. 5. Enter the IP address of the PC or network device that you want the port server to go to. For example, if the web server’s Ethernet adapter IP address is 192.168.1.100, you would enter 100 in the field provided. Check “Appendix E: Finding the MAC Address and IP Address for Your Ethernet Adapter” for details on getting an IP address.6. Check the Enable option for the port services you want to use. Consider the example below:When you have completed the configuration, click the Save Settings button.Application Start and End Protocol IP Address EnabledWeb server 80 to 80 Both 192.168.1.100 XFTP server 21 to 21 TCP 192.168.1.101 XSMTP (outgoing) 25 to 25 Both 192.168.1.102 XPOP3 (incoming) 110 to 110 Both 192.168.1.102 X
44Appendix A: TroubleshootingCommon Problems and SolutionsWireless-G Broadband Router7. I need to set up online game hosting or use other Internet applications.If you want to play online games or use Internet applications, most will work without doing any port forwarding or DMZ hosting. There may be cases when you want to host an online game or Internet application. This would require you to set up the Router to deliver incoming packets or data to a specific computer. This also applies to the Internet applications you are using. The best way to get the information on what port services to use is to go to the website of the online game or application you want to use. Follow these steps to set up online game hosting or use a certain Internet application:1. Access the Router’s web interface by going to http://192.168.1.1 or the IP address of the Router. Go to the Applications & Gaming => Port Range Forward tab.2. Enter any name you want to use for the Application.3. Enter the Start and End Port range of the service you are using. For example, if you want to host Unreal Tournament (UT), you would enter the range 7777 to 27900.4. Select the protocol(s) you will be using, TCP and/or UDP. 5. Enter the IP address of the PC or network device that you want the port server to go to. For example, if the web server’s Ethernet adapter IP address is 192.168.1.100, you would enter 100 in the field provided. Check “Appendix E: Finding the MAC Address and IP Address for Your Ethernet Adapter” for details on getting an IP address.6. Check the Enable option for the port services you want to use. Consider the example below:When you have completed the configuration, click the Save Settings button.8. I can’t get the Internet game, server, or application to work.If you are having difficulties getting any Internet game, server, or application to function properly, consider exposing one PC to the Internet using DeMilitarized Zone (DMZ) hosting. This option is available when an application requires too many ports or when you are not sure which port services to use. Make sure you disable all the forwarding entries if you want to successfully use DMZ hosting, since forwarding has priority over DMZ hosting. (In other words, data that enters the Router will be checked first by the forwarding settings. If the port number that the data enters from does not have port forwarding, then the Router will send the data to whichever PC or network device you set for DMZ hosting.) Application Start and End Protocol IP Address EnabledUT 7777 to 27900 Both 192.168.1.100 XHalflife 27015 to 27015 Both 192.168.1.105 XPC Anywhere 5631 to 5631 UDP 192.168.1.102 XVPN IPSEC 500 to 500 UDP 192.168.1.100 X
45Appendix A: TroubleshootingCommon Problems and SolutionsWireless-G Broadband RouterFollow these steps to set DMZ hosting:1. Access the Router’s web-based utility by going to http://192.168.1.1 or the IP address of the Router. Go to the Applications & Gaming => Port Range Forward tab.2. Disable or remove the entries you have entered for forwarding. Keep this information in case you want to use it at a later time.3. Go to the Applications & Gaming => DMZ tab.4. Select Enable next to DMZ. In the Client PC IP Address field, enter the IP address of the computer you want exposed to the Internet. This will bypass the NAT technology for that computer. Please refer to “Appendix E: Finding the MAC Address and IP Address for Your Ethernet Adapter” for details on getting an IP address. 5. Once completed with the configuration, click the Save Settings button.9. I forgot my password, or the password prompt always appears when I am saving settings to the Router.Reset the Router to factory default by pressing the Reset button for 10 seconds and then releasing it. If you are still getting prompted for a password when saving settings, then perform the following steps:1. Access the Router’s web-based utility by going to http://192.168.1.1 or the IP address of the Router. Enter the default password admin, and click the Administration => Management tab. 2. Enter a different password in the Router Password field, and enter the same password in the second field to confirm the password.3. Click the Save Settings button.10. I am a PPPoE user, and I need to remove the proxy settings or the dial-up pop-up window.If you have proxy settings, you need to disable these on your computer. Because the Router is the gateway for the Internet connection, the computer does not need any proxy settings to gain access. Please follow these directions to verify that you do not have any proxy settings and that the browser you use is set to connect directly to the LAN.• For Microsoft Internet Explorer 5.0 or higher:1. Click Start, Settings, and Control Panel. Double-click Internet Options. 2. Click the Connections tab.3. Click the LAN settings button and remove anything that is checked.4. Click the OK button to go back to the previous screen.5. Click the option Never dial a connection. This will remove any dial-up pop-ups for PPPoE users.• For Netscape 4.7 or higher:1. Start Netscape Navigator, and click Edit, Preferences, Advanced, and Proxies. 2. Make sure you have Direct connection to the Internet selected on this screen.3. Close all the windows to finish.
46Appendix A: TroubleshootingCommon Problems and SolutionsWireless-G Broadband Router11. To start over, I need to set the Router to factory default.Hold the Reset button for 10 seconds and then release it. This will return the password, forwarding, and other settings on the Router to the factory default settings. In other words, the Router will revert to its original factory configuration.12. I need to upgrade the firmware.In order to upgrade the firmware with the latest features, you need to go to the Linksys website and download the latest firmware at www.linksys.com/international. Follow these steps:1. Go to the Linksys website at http://www.linksys.com/international and download the latest firmware.2. To upgrade the firmware, follow the steps in “Appendix C: Upgrading Firmware.”13. The firmware upgrade failed, and/or the Power LED is flashing.The upgrade could have failed for a number of reasons. Follow these steps to upgrade the firmware and/or make the Power LED stop flashing:• If the firmware upgrade failed, use the TFTP program (it was downloaded along with the firmware). Open the pdf that was downloaded along with the firmware and TFTP program, and follow the pdf’s instructions.• Set a static IP address on the PC; refer to “Problem #2, I need to set a static IP address.” Use the following IP address settings for the computer you are using:IP Address: 192.168.1.50Subnet Mask: 255.255.255.0Gateway: 192.168.1.1• Perform the upgrade using the TFTP program or the Administration tab of the Router’s web-based utility.14. My DSL service’s PPPoE is always disconnecting.PPPoE is not actually a dedicated or always-on connection. The DSL ISP can disconnect the service after a period of inactivity, just like a normal phone dial-up connection to the Internet. • There is a setup option to “keep alive” the connection. This may not always work, so you may need to re-establish connection periodically.1. To connect to the Router, go to the web browser, and enter http://192.168.1.1 or the IP address of the Router.2. Enter the password, if asked. (The default password is admin.)3. On the Setup screen, select the option Keep Alive, and set the Redial Period option at 20 (seconds).4. Click the Save Settings button.5. Click the Status tab, and click the Connect button.6. You may see the login status display as Connecting. Press the F5 key to refresh the screen, until you see the login status display as Connected.• Click the Save Settings button to continue.• If the connection is lost again, follow steps 1- 6 to re-establish connection.
47Appendix A: TroubleshootingCommon Problems and SolutionsWireless-G Broadband Router15. I can’t access my e-mail, web or I am getting corrupted data from the Internet.The Maximum Transmission Unit (MTU) setting may need to be adjusted. By default, the MTU is set at 1500. For most DSL users, it is strongly recommended to use MTU 1492. • If you are having some difficulties, perform the following steps:1. To connect to the Router, go to the web browser, and enter http://192.168.1.1 or the IP address of the Router.2. Enter the password, if asked. (The default password is admin.)3. Look for the MTU option, and select Manual. In the Size field, enter 1492. 4. Click the Save Settings button to continue.• If your difficulties continue, change the Size to different values. Try this list of values, one value at a time, in this order, until your problem is solved:146214001362130016. The Power LED keeps flashing.The Power LED flashes when the device is first powered up. Meantime, the system will boot up itself and check for proper operation. After finishing the checking procedure, the LED stays solid to show that the system is working fine. If the LED keeps flashing after this time, the device is not working properly. Try to flash the firmware by assigning a static IP address to the computer, and then upgrade the firmware. Try using the following settings, IP Address: 192.168.1.50 and Subnet Mask: 255.255.255.0.17. When I enter a URL or IP address, I get a time-out error or am prompted to retry.• Check if other PCs work. If they do, ensure that your workstation’s IP settings are correct (IP Address, Subnet Mask, Default Gateway, and DNS). Restart the computer that is having a problem.• If the PCs are configured correctly, but still not working, check the Router. Ensure that it is connected and powered on. Connect to it and check its settings. (If you cannot connect to it, check the LAN and power connections.)• If the Router is configured correctly, check your Internet connection (DSL/cable modem, etc.) to see if it is working correctly. You can remove the Router to verify a direct connection.• Manually configure the TCP/IP settings with a DNS address provided by your ISP.• Make sure that your browser is set to connect directly and that any dial-up is disabled. For Internet Explorer, click Tools, Internet Options, and then the Connection tab. Make sure that Internet Explorer is set to Never dial a connection. For Netscape Navigator, click Edit, Preferences, Advanced, and Proxy. Make sure that Netscape Navigator is set to Direct connection to the Internet.
48Appendix A: TroubleshootingFrequently Asked QuestionsWireless-G Broadband RouterFrequently Asked QuestionsAfter using SecureEasySetup, my existing wireless devices can no longer connect to the Router.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. Re-run the Setup Wizard. On the Welcome screen for the Setup Wizard, click Click Here to Start and follow the on-screen instructions. On the Configure Wireless Settings screen, click Enter Wireless Settings Manually and continue to follow the on-screen instructions. For more information, refer to “Chapter 5: Setting up the Wireless-G Broadband Router.”How do I set up additional devices using SecureEasySetup?Repeat the SecureEasySetup process for each device until all of your devices have been configured.Where is my SecureEasySetup button?On the Router, the SecureEasySetup button is located on the front panel. The button should be lighted either orange or white. For other SecureEasySetup devices, refer to each wireless device's documentation to locate the button on that device.I have devices that support WPA-Personal security, but do not have SecureEasySetup. Can I still use SecureEasySetup?Yes. Print out the wireless security settings at the end of the SecureEasySetup process, and then manually configure the settings for your non-SecureEasySetup devices. Refer to each wireless device’s documentation for instructions on how to enter these settings.What is the maximum number of IP addresses that the Router will support? The Router will support up to 253 IP addresses.Is IPSec Pass-Through supported by the Router? Yes, it is a built-in feature that the Router automatically enables.Where is the Router installed on the network? In a typical environment, the Router is installed between the cable/DSL modem and the LAN. Plug the Router into the cable/DSL modem’s Ethernet port.Does the Router support IPX or AppleTalk? No. TCP/IP is the only protocol 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 LAN to LAN connections, but those protocols cannot connect from the Internet to a LAN.
49Appendix A: TroubleshootingFrequently Asked QuestionsWireless-G Broadband RouterDoes the Internet connection of the Router support 100Mbps Ethernet? The Router’s current hardware design supports up to 100Mbps Ethernet on its Internet port; however, the Internet connection speed will vary depending on the speed of your broadband connection. The Router also supports 100Mbps over the auto-sensing Fast Ethernet 10/100 switch on the LAN side of the Router. What is Network Address Translation and what is it used for? Network Address Translation (NAT) translates multiple IP addresses on the private LAN to one public address that is sent out to the Internet. This adds a level of security since the address of a PC connected to the private LAN is never transmitted on the Internet. Furthermore, NAT allows the Router to be used with low cost Internet accounts, such as DSL or cable modems, when only one TCP/IP address is provided by the ISP. The user may have many private addresses behind this single address provided by the ISP.Does the Router support any operating system other than Windows 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 Router support ICQ send file? Yes, with the following fix: click ICQ menu -> preference -> connections tab->, and check I 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 Router.I set up an Unreal Tournament Server, but others on the LAN cannot join. What do I need to do? If you have a dedicated Unreal Tournament server running, you need to create a static IP for each of the LAN computers and forward ports 7777, 7778, 7779, 7780, 7781, and 27900 to the IP address of the server. You can also use a port forwarding range of 7777 ~ 27900. If you want to use the UT Server Admin, forward another port. (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 Router from your ISP.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 I get Half-Life: Team Fortress to work with the Router? The default client port for Half-Life is 27005. The computers on your LAN need to have “+clientport 2700x” added to the HL shortcut command line; the x would be 6, 7, 8, and on up. This lets multiple computers connect to the same server. One problem: Version 1.0.1.6 won’t let multiple computers with the same CD key connect at
50Appendix A: TroubleshootingFrequently Asked QuestionsWireless-G Broadband Routerthe same time, even if on the same LAN (not a problem with 1.0.1.3). As far as hosting games, the HL server does not need to be in the DMZ. Just forward port 27015 to the local IP address of the server computer. How can I block corrupted FTP downloads? If you are experiencing corrupted files when you download a file with your FTP client, try using another FTP program.The web page hangs; downloads are corrupt, or nothing but junk characters are being displayed on the screen. What do I need to do? Force your Ethernet adapter to 10Mbps or half duplex mode, and turn off the “Auto-negotiate” feature of your Ethernet adapter as a temporary measure. (Please look at the Network Control Panel in your Ethernet adapter’s Advanced Properties tab.) Make sure that your proxy setting is disabled in the browser. Check our website at www.linksys.com/international for more information.If all else fails in the installation, what can I do? Reset the Router by holding down the reset button until the Power LED fully turns on and off. Reset your cable or DSL modem by powering the unit off and then on. Obtain and flash the latest firmware release that is readily available on the Linksys website, www.linksys.com/international.How will I be notified of new Router firmware upgrades? All Linksys firmware upgrades are posted on the Linksys website at www.linksys.com/international, where they can be downloaded for free. To upgrade the Router’s firmware, use the Administration - Firmware Upgrade tab of the Router’s web-based utility. If the Router’s Internet connection is working well, there is no need to download a newer firmware version, unless that version contains new features that you would like to use. Downloading a more current version of Router firmware will not enhance the quality or speed of your Internet connection, and may disrupt your current connection stability.Will the Router function in a Macintosh environment? Yes, but the Router’s setup pages are accessible only through Internet Explorer 4.0 or Netscape Navigator 4.0 or higher for Macintosh.I am not able to get the web configuration screen for the Router. What can I do? You may have to remove the proxy settings on your Internet browser, e.g., Netscape Navigator or Internet Explorer. Or remove the dial-up settings on your browser. Check with your browser documentation, and make sure that your browser is set to connect directly and that any dial-up is disabled. Make sure that your browser is set to connect directly and that any dial-up is disabled. For Internet Explorer, click Tools, Internet Options, and then the Connection tab. Make sure that Internet Explorer is set to Never dial a connection. For Netscape Navigator, click Edit, Preferences, Advanced, and Proxy. Make sure that Netscape Navigator is set to Direct connection to the Internet.
51Appendix A: TroubleshootingFrequently Asked QuestionsWireless-G Broadband RouterWhat 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 want to use DMZ Hosting. To get the LAN IP address, see “Appendix E: Finding the MAC Address and IP Address for Your Ethernet Adapter.”If DMZ Hosting is used, does the exposed user share the public IP with the Router? No.Does the Router pass PPTP packets or actively route PPTP sessions? The Router allows PPTP packets to pass through.Is the Router cross-platform compatible? Any platform that supports Ethernet and TCP/IP is compatible with the Router.How many ports can be simultaneously forwarded? Theoretically, the Router can establish 520 sessions at the same time, but you can only forward 10 ranges of ports.What are the advanced features of the Router? The Router’s advanced features include advanced wireless settings, filters, access restriction policies, port forwarding, advanced routing, and DDNS.How do I get mIRC to work with the Router?Under the Port Forwarding tab, set port forwarding to 113 for the PC on which you are using mIRC.Can the Router act as my DHCP server? Yes. The Router has DHCP server software built-in.Can I run an application from a remote computer over the wireless network? This will depend on whether or not the application is designed to be used over a network. Consult the application’s documentation to determine if it supports operation over a network.What is the IEEE 802.11g standard?It is 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.
52Appendix A: TroubleshootingFrequently Asked QuestionsWireless-G Broadband RouterWhat is the IEEE 802.11b standard?It is one of the IEEE standards for wireless networks. The 802.11b standard allows wireless networking hardware from different manufacturers to communicate, provided that the hardware complies with the 802.11b standard. The 802.11b standard states a maximum data transfer rate of 11Mbps and an operating frequency of 2.4GHz.What IEEE 802.11g features are supported?The product supports the following IEEE 802.11g functions: • CSMA/CA plus Acknowledge protocol • OFDM protocol• Multi-Channel Roaming • Automatic Rate Selection • RTS/CTS feature • Fragmentation• Power Management What IEEE 802.11b features are supported?The product supports the following IEEE 802.11b functions: • CSMA/CA plus Acknowledge protocol • Multi-Channel Roaming • Automatic Rate Selection • RTS/CTS feature • Fragmentation • Power Management 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. The ad-hoc wireless network will not communicate with any wired network.What is infrastructure mode?When a wireless network is set to infrastructure mode, the wireless network is configured to communicate with a wired network through a wireless access point.What is roaming?Roaming is the ability of a portable computer user to communicate continuously while moving freely throughout an area greater than that covered by a single access point. Before using the roaming function, the workstation must make sure that it is the same channel number with the access point of dedicated coverage area. To achieve true seamless connectivity, the wireless LAN must incorporate a number of different functions. Each node and access point, for example, must always acknowledge receipt of each message. Each node must
53Appendix A: TroubleshootingFrequently Asked QuestionsWireless-G Broadband Routermaintain contact with the wireless network even when not actually transmitting data. Achieving these functions simultaneously requires a dynamic RF networking technology that links access points and nodes. In such a system, the user’s end node undertakes a search for the best possible access to the system. First, it evaluates such factors as signal strength and quality, as well as the message load currently being carried by each access point and the distance of each access point to the wired backbone. Based on that information, the node next selects the right access point and registers its address. Communications between end node and host computer can then be transmitted up and down the backbone.As the user moves on, the end node’s RF transmitter regularly checks the system to determine whether it is in touch with the original access point or whether it should seek a new one. When a node no longer receives acknowledgment from its original access point, it undertakes a new search. Upon finding a new access point, it then re-registers, and the communication process continues.What is ISM band?The FCC and their counterparts outside of the U.S. have set aside bandwidth for unlicensed use in the ISM (Industrial, Scientific and Medical) band. Spectrum in the vicinity of 2.4 GHz, in particular, is being made available worldwide. This presents a truly revolutionary opportunity to place convenient high-speed wireless capabilities in the hands of users around the globe. What is Spread Spectrum?Spread Spectrum technology is a wideband radio frequency technique developed by the military for use in reliable, secure, mission-critical communications systems. It is designed to trade off bandwidth efficiency for reliability, integrity, and security. In other words, more bandwidth is consumed than in the case of narrowband transmission, but the trade-off produces a signal that is, in effect, louder and thus easier to detect, provided that the receiver knows the parameters of the spread-spectrum signal being broadcast. If a receiver is not tuned to the right frequency, a spread-spectrum signal looks like background noise. There are two main alternatives, Direct Sequence Spread Spectrum (DSSS) and Frequency Hopping Spread Spectrum (FHSS).What is DSSS? What is FHSS? And what are their differences?Frequency-Hopping Spread-Spectrum (FHSS) uses a narrowband carrier that changes frequency in a pattern that is known to both transmitter and receiver. Properly synchronized, the net effect is to maintain a single logical channel. To an unintended receiver, FHSS appears to be short-duration impulse noise. Direct-Sequence Spread-Spectrum (DSSS) generates a redundant bit pattern for each bit to be transmitted. This bit pattern is called a chip (or chipping code). The longer the chip, the greater the probability that the original data can be recovered. Even if one or more bits in the chip are damaged during transmission, statistical techniques embedded in the radio can recover the original data without the need for retransmission. To an unintended receiver, DSSS appears as low power wideband noise and is rejected (ignored) by most narrowband receivers.
54Appendix A: TroubleshootingFrequently Asked QuestionsWireless-G Broadband RouterWhat is WEP?WEP is Wired Equivalent Privacy, a data privacy mechanism based on a 64-bit or 128-bit shared key algorithm, as described in the IEEE 802.11 standard.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.How do I reset the Router?Press the Reset button on the back panel for about five seconds. This will reset the Router to its default settings.How do I resolve issues with signal loss?There is no way to know the exact range of your wireless network without testing. Every obstacle placed between the Router and a wireless PC will create signal loss. Lead glass, metal, concrete floors, water and walls will inhibit the signal and reduce range. Start with the Router and your wireless PC in the same room and move it away in small increments to determine the maximum range in your environment. You may also try using different channels, as this may eliminate interference affecting only one channel.I have excellent signal strength, but I cannot see my network. Wireless security is probably enabled on the Router, but not on your wireless adapter (or vice versa). Verify that the same wireless security method and passphrase/keys are being used on all devices of your wireless network. How many channels/frequencies are available with the Router?There are eleven available channels, ranging from 1 to 11, in North America. There may be additional channels available in other regions, subject to the regulations of your region and/or country.If your questions are not addressed here, refer to the Linksys website, www.linksys.com/international.
55Appendix B: Wireless SecuritySecurity PrecautionsWireless-G Broadband RouterAppendix B: Wireless SecurityLinksys 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 PrecautionsThe 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 WEP encryption keys periodically. For information on implementing these security features, refer to “Chapter 6: Configuring the Wireless-G Broadband Router.”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, 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.NOTE: Some of these security features are available only through the network router or access point. Refer to the router or access point’s documentation for more information.
56Appendix B: Wireless SecuritySecurity Threats Facing Wireless NetworksWireless-G Broadband RouterSSID. 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 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” authentication3. Change your WEP key regularly WPA. Wi-Fi Protected Access (WPA) is the newest and best available standard in Wi-Fi security. Two modes are available: Personal (also known as Pre-Shared Key) and Enterprise. 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 System), which utilizes a symmetric 128-Bit block data encryption. Enterprise utilizes a RADIUS (Remote Authentication Dial-In User Service) server for authentication and the use of dynamic TKIP, AES, or WEP. IMPORTANT: Always remember that each device in your wireless network MUST use the same encryption method and encryption key or your wireless network will not function properly.
57Appendix B: Wireless SecuritySecurity Threats Facing Wireless NetworksWireless-G Broadband RouterWPA Personal. If you do not have a RADIUS server, Select the type of algorithm, TKIP or AES, enter a password in the Pre-Shared key field of 8-64 characters, and enter a Group Key Renewal period time between 0 and 99,999 seconds, which instructs the Router or other device how often it should change the encryption keys.WPA Enterprise. WPA 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, select the type of WPA algorithm, TKIP or AES. 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 recommendations should help keep your mind at ease while you are enjoying the most flexible and convenient technology Linksys has to offer.
58Appendix C: Upgrading FirmwareWireless-G Broadband RouterAppendix C: Upgrading FirmwareThe Router's firmware is upgraded through the Web-based Utility's Administration tab. Follow these instructions:1. Download the firmware from Linksys's website at www.linksys.com/international.2. Extract the firmware file on your computer.3. Open the Router’s Web-based Utility, and click the Administration tab.4. Click Firmware Upgrade, and the Upgrade Firmware screen will appear.5. Enter the location of the firmware's file or click the Browse button to find the file.6. Then click the Upgrade button and follow the on-screen instructions. Figure C-1: Upgrade Firmware
59Appendix D: Windows HelpWireless-G Broadband RouterAppendix D: Windows HelpAlmost Linksys wireless products require Microsoft Windows. Windows is the most used operating system in the world and comes with many features that help make networking easier. These features can be accessed through Windows Help and are described in this appendix.TCP/IPBefore a computer can communicate with the Router, TCP/IP must be enabled. TCP/IP is a set of instructions, or protocol, all PCs follow to communicate over a network. This is true for wireless networks as well. Your PCs will not be able to utilize wireless networking without having TCP/IP enabled. Windows Help provides complete instructions on enabling TCP/IP.Shared ResourcesIf you wish to share printers, folder, or files over your network, Windows Help provides complete instructions on utilizing shared resources.Network Neighborhood/My Network PlacesOther PCs on your network will appear under Network Neighborhood or My Network Places (depending upon the version of Windows you're running). Windows Help provides complete instructions on adding PCs to your network.
60Appendix E: Finding the MAC Address and IP Address for Your Ethernet AdapterWindows 98SE or Me InstructionsWireless-G Broadband RouterAppendix E: Finding the MAC Address and IP Address for Your Ethernet AdapterThis section 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 Router. You can also find the IP address of your computer’s Ethernet adapter. This IP address is used for the Router’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 98SE or Me Instructions1. 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 Router via a CAT 5 Ethernet network cable. 3. Write down the Adapter Address as shown on your computer screen. This is the MAC address for your Ethernet adapter and is shown as a series of numbers and letters.The MAC address/Adapter Address is what you will use for MAC address cloning or MAC filtering.The example to the right shows the Ethernet adapter’s IP address as 192.168.1.100. Your computer may show something different.Windows 2000 or XP Instructions1. Click Start and Run. In the Open field, enter cmd. Press the Enter key or click the OK button.2. At the command prompt, enter ipconfig /all. Then press the Enter key.Figure E-2: MAC Address/Adapter AddressFigure E-1: IP Configuration ScreenNote: The MAC address is also called the Adapter Address.Figure E-3: MAC Address/Physical Address
61Appendix E: Finding the MAC Address and IP Address for Your Ethernet AdapterFor the Router’s Web-based UtilityWireless-G Broadband Router3. Write down the Physical Address as shown on your computer screen; 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 address cloning or MAC filtering.The example to the right shows the Ethernet adapter’s IP address as 192.168.1.100. Your computer may show something different.For the Router’s Web-based UtilityFor MAC filtering, enter the 12-digit MAC address in this format, XXXXXXXXXXXX, WITHOUT the hyphens. For MAC address cloning, enter the 12-digit MAC address in the MAC Address fields provided, two digits per field. Figure E-4: MAC Address Filter ListNote: The MAC address is also called the Physical Address.Figure E-5: MAC Address Clone
62Appendix F: GlossaryWireless-G Broadband RouterAppendix F: Glossary802.11b - A wireless networking standard that specifies a maximum data transfer rate of 11Mbps and an operating frequency of 2.4GHz.802.11g - A 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 - A 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 - A device that adds network functionality to your PC.Ad-hoc - A group of wireless devices communicating directly with each other (peer-to-peer) without the use of an access point.AES (Advanced Encryption Standard) - A security method that uses symmetric 128-bit block data encryption.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 - Data transmitted on your wireless network that keeps the network synchronized.Bit - A binary digit.Boot - To start a device and cause it to start executing instructions.Bridge - A device that connects different networks. Broadband - An always-on, fast Internet connection.Browser - An application program that provides a way to look at and interact with all the information on the World Wide Web. Buffer - A shared or assigned memory area that is used to support and coordinate different computing and networking activities so one isn't held up by the other.Byte - A unit of data that is usually eight bits long
63Appendix F: GlossaryWireless-G Broadband RouterCable 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 collisions.CTS (Clear To Send) - A signal sent by a wireless device, signifying 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) - Allows the hosting of a website, FTP server, or e-mail server with a fixed domain name (e.g., www.xyz.com) and a dynamic IP address.Default Gateway - A device that forwards Internet traffic from your local area network.DHCP (Dynamic Host Configuration Protocol) - A networking protocol that allows administrators to assign temporary IP addresses to network computers by “leasing” an IP address to a user for a limited amount of time, instead of assigning permanent IP addresses.DMZ (Demilitarized Zone) - Removes the Router's firewall protection from one PC, 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 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) - Frequency transmission with a redundant bit pattern resulting in a lower probability of information being lost in transit.DTIM (Delivery Traffic Indication Message) - A message included in data packets that can increase wireless efficiency.Dynamic IP Address - A temporary IP address assigned by a DHCP server.
64Appendix F: GlossaryWireless-G Broadband RouterEAP (Extensible Authentication Protocol) - A general authentication protocol used to control network access. Many specific authentication methods work within this framework.EAP-PEAP (Extensible Authentication Protocol-Protected Extensible Authentication Protocol) - A mutual authentication method that uses a combination of digital certificates and another system, such as passwords.EAP-TLS (Extensible Authentication Protocol-Transport Layer Security) - A mutual authentication method that uses digital certificates.Encryption - Encoding data transmitted in a network. Ethernet - A networking 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 - A set of related programs located at a network gateway server that protects the resources of a network from users from other networks.Firmware - The programming code that runs a networking device.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 protocol used to transfer files over a TCP/IP network.Full Duplex - The ability of a networking device to receive and transmit data simultaneously.Gateway - A device that interconnects networks with different, incompatible communications protocols. Half Duplex - Data transmission that can occur in two directions over a single line, but only one direction at a time.Hardware - 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.Infrastructure - A wireless network that 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.
65Appendix F: GlossaryWireless-G Broadband RouterIPCONFIG - 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 bandwidth utilized in wireless transmissions.ISP (Internet Service Provider) - A company that provides access to the Internet. LAN - The computers and networking products that make up your local network.LEAP (Lightweight Extensible Authentication Protocol) - A mutual authentication method that uses a username and password system.MAC (Media Access Control) Address - The 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.mIRC - An Internet Relay Chat program that runs under Windows.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) - Frequency transmission that separates the data stream into a number of lower-speed data streams, which are then transmitted in parallel to prevent information from being lost in transit.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.PEAP (Protected Extensible Authentication Protocol) - A mutual authentication method that uses a combination of digital certificates and another system, such as passwords.
66Appendix F: GlossaryWireless-G Broadband RouterPing (Packet INternet Groper) - An Internet utility used to determine whether a particular IP address is online.POP3 (Post Office Protocol 3) - A standard mail server commonly used on the Internet.Port - The connection point on a computer or networking device used for plugging in cables or adapters. Power over Ethernet (PoE) - A technology enabling an Ethernet network cable to deliver both data and power.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.RADIUS (Remote Authentication Dial-In User Service) - A protocol that uses an authentication server to control network access.RJ-45 (Registered Jack-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.RTS (Request To Send) - A networking method of coordinating large packets through the RTS Threshold setting.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 called a “program”.SOHO (Small Office/Home Office) - Market segment of professionals who work at home or in small offices.SPI (Stateful Packet Inspection) Firewall - A technology that inspects incoming packets of information before allowing them to enter the network.
67Appendix F: GlossaryWireless-G Broadband RouterSpread 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. A data switch that connects computing devices to host computers, allowing a large number of devices to share a limited number of ports. 2. A device for making, breaking, or changing the connections in an electrical circuit. TCP (Transmission Control Protocol) - A network protocol for transmitting data that requires acknowledgement from the recipient of data sent.TCP/IP (Transmission Control Protocol/Internet Protocol) - A set of instructions PCs use to communicate over a network.Telnet - A user command and TCP/IP protocol used for accessing remote PCs.TFTP (Trivial File Transfer Protocol) - A version of the TCP/IP FTP protocol that has no directory or password capability.Throughput - The amount of data moved successfully from one node to another in a given time period.TKIP (Temporal Key Integrity Protocol) - a wireless encryption protocol that provides dynamic encryption keys for each packet transmitted.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. Upload - To transmit a file over a network.URL (Uniform Resource Locator) - The address of a file located on the Internet.
68Appendix F: GlossaryWireless-G Broadband RouterVPN (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 network data transmitted on a wireless network for greater security.WINIPCFG - A Windows 98 and Me 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.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.
69Appendix G: SpecificationsWireless-G Broadband RouterAppendix G: SpecificationsModel WRK54GStandards IEEE 802.3, IEEE 802.3u, IEEE 802.11g, IEEE 802.11bChannels 11 Channels (Most of North, Central, and South America)13 Channels (Most of Europe and Asia)Ports Internet: One 10/100 RJ-45 PortLAN: Four 10/100 RJ-45 Switched PortsOne Power PortButtons ResetCabling Type Ethernet Network CableLEDs Power, DMZ, WLAN, LAN (1-4), InternetRF Power Output 18dbm +/- 1.5dbm (B)15dbm +/- 1.5dbm (G)UPnP able/cert AbleSecurity Features Stateful Packet Inspection (SPI) Firewall, Internet PolicyWireless Security Wi-Fi Protected Access™ (WPA), WEP, Wireless MAC FilteringDimensions 186 mm x 48 mm x 200 mm(W x H x D)Unit Weight 0.323 kgPower External, 12V DC, 0.5A
70Appendix G: SpecificationsWireless-G Broadband RouterCertifications FCC, IC-03, CE, Wi-Fi (802.11b, 802.11g), WPA, WPA2, WMMOperating Temp. 0ºC to 40ºC (32ºF to 104ºF)Storage Temp. -20ºC to 70ºC (-4ºF to 158ºF) Operating Humidity 10% to 85%, Non-CondensingStorage Humidity 5% to 90%, Non-Condensing
71Appendix H: Warranty InformationWireless-G Broadband RouterAppendix H: Warranty InformationLinksys 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 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 incidental or consequential damages, so the above limitation or exclusion may not apply to You.This Warranty is valid and may be processed only in the country of purchase.Please direct all inquiries to: Linksys, P.O. Box 18558, Irvine, CA 92623.
72Appendix I: Regulatory InformationWireless-G Broadband RouterAppendix I: Regulatory InformationFCC StatementThis 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 assistanceFCC Radiation Exposure StatementThis 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 body.Safety NoticesCaution: 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 electric shock from lightning.Industry Canada (Canada)This device complies with Canadian ICES-003 and RSS210 rules.Cet appareil est conforme aux normes NMB-003 et RSS210 d'Industry Canada.This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.FCC Caution: Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate this equipment.Linksys declares that WRK54G v3 (FCC ID: Q87-WRK54GV3 ) is limited in CH1~CH11 for 2.4 GHz by specified firmware controlled in U.S.A.
73Appendix I: Regulatory InformationWireless-G Broadband RouterCompliance Information for 2.4-GHz Wireless Products Relevant to the EU and Other Countries Following the EU Directive 1999/5/EC (R&TTE Directive)Declaration of Conformity with Regard to the EU Directive 1999/5/EC (R&TTE Directive)IC statementOperation is subject to the following two conditions:1) This device may not cause interference and2) This device must accept any interference, including interference that may cause undesired operation of the device.IMPORTANT NOTE:IC Radiation Exposure Statement:This equipment complies with IC radiation exposure limits set forth for an uncontrolled environment. End users must follow the specific operating instructions for satisfying RF exposure compliance. To maintain compliance with IC RF exposure compliance requirements, please avoid direct contact to the transmitting antenna during transmitting. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.Règlement d’Industry Canada Les conditions de fonctionnement sont sujettes à deux conditions:1) Ce périphérique ne doit pas causer d’interférence et.2) Ce périphérique doit accepter toute interférence, y compris les interférences pouvant perturber le bon fonctionnement de ce périphérique.
74Appendix I: Regulatory InformationWireless-G Broadband RouterThe following standards were applied during the assessment of the product against the requirements of the Directive 1999/5/EC:• Radio: EN 300 328• EMC: EN 301 489-1, EN 301 489-17• Safety: EN 60950 and either EN 50385 or EN 50371CE MarkingFor the Linksys Wireless-B and Wireless-G products, the following CE mark, notified body number (where applicable), and class 2 identifier are added to the equipment.Check the CE label on the product to find out which notified body was involved during the assessment.National RestrictionsThis product may be used in all EU countries (and other countries following the EU directive 1999/5/EC) without any limitation except for the countries mentioned below:Ce produit peut être utilisé dans tous les pays de l’UE (et dans tous les pays ayant transposés la directive 1999/5/CE) sans aucune limitation, excepté pour les pays mentionnés ci-dessous:Questo prodotto è utilizzabile in tutte i paesi EU (ed in tutti gli altri paesi che seguono le direttive EU 1999/5/EC) senza nessuna limitazione, eccetto per i paesii menzionati di seguito:Das Produkt kann in allen EU Staaten ohne Einschränkungen eingesetzt werden (sowie in anderen Staaten die der EU Direktive 1999/5/CE folgen) mit Außnahme der folgenden aufgeführten Staaten:NOTE: For all products, the Declaration of Conformity is available through one or more of these options:• A pdf file is included on the product's CD.• A print copy is included with the product.• A pdf file is available on the product's webpage. Visit www.linksys.com/international and select your country or region. Then select your product.If you need any other technical documentation, see the “Technical Documents on www.linksys.com/international” section, as shown later in this appendix.or or
75Appendix I: Regulatory InformationWireless-G Broadband RouterBelgiumThe Belgian Institute for Postal Services and Telecommunications (BIPT) must be notified of any outdoor wireless link having a range exceeding 300 meters. Please check http://www.bipt.be for more details.Draadloze verbindingen voor buitengebruik en met een reikwijdte van meer dan 300 meter dienen aangemeld te worden bij het Belgisch Instituut voor postdiensten en telecommunicatie (BIPT). Zie http://www.bipt.be voor meer gegevens. Les liaisons sans fil pour une utilisation en extérieur d’une distance supérieure à 300 mètres doivent être notifiées à l’Institut Belge des services Postaux et des Télécommunications (IBPT). Visitez http://www.ibpt.be pour de plus amples détails.FranceIn case the product is used outdoors, the output power is restricted in some parts of the band. See Table 1 or check http://www.art-telecom.fr/ for more details.Dans la cas d’une utilisation en extérieur, la puissance de sortie est limitée pour certaines parties de la bande. Reportez-vous à la table 1 ou visitez http://www.art-telecom.fr/ pour de plus amples détails.ItalyThis product meets the National Radio Interface and the requirements specified in the National Frequency Allocation Table for Italy. Unless operating within the boundaries of the owner’s property, the use of this 2.4 GHz Wireless LAN product requires a ‘general authorization’. Please check with http://www.comunicazioni.it/it/ for more details.Questo prodotto è conforme alla specifiche di Interfaccia Radio Nazionali e rispetta il Piano Nazionale di ripartizione delle frequenze in Italia. Se non viene installato all’interno del proprio fondo, l’utilizzo di prodotti Wireless LAN a 2.4 GHz richiede una “Autorizzazione Generale”. Consultare http://www.comunicazioni.it/it/ per maggiori dettagli.Table 1: Applicable Power Levels in FranceLocation Frequency Range (MHz) Power (EIRP)Indoor (No restrictions) 2400-2483.5 100 mW (20 dBm)Outdoor 2400-24542454-2483.5100 mW (20 dBm)10 mW (10 dBm)
76Appendix I: Regulatory InformationWireless-G Broadband RouterProduct Usage RestrictionsThis product is designed for indoor usage only. Outdoor usage is not recommended.This product is designed for use with the standard, integral or dedicated (external) antenna(s) that is/are shipped together with the equipment. However, some applications may require the antenna(s), if removable, to be separated from the product and installed remotely from the device by using extension cables. For these applications, Linksys offers an R-SMA extension cable (AC9SMA) and an R-TNC extension cable (AC9TNC). Both of these cables are 9 meters long and have a cable loss (attenuation) of 5 dB. To compensate for the attenuation, Linksys also offers higher gain antennas, the HGA7S (with R-SMA connector) and HGA7T (with R-TNC connector). These antennas have a gain of 7 dBi and may only be used with either the R-SMA or R-TNC extension cable.Combinations of extension cables and antennas resulting in a radiated power level exceeding 100 mW EIRP are illegal.Power Output of Your DeviceTo comply with your country’s regulations, you may have to change the power output of your wireless device. Proceed to the appropriate section for your device.Wireless AdaptersWireless adapters have the power output set to 100% by default. Maximum power output on each adapter does not exceed 20 dBm (100 mW); it is generally 18 dBm (64 mW) or below. If you need to alter your wireless adapter’s power output, follow the appropriate instructions for your computer’s Windows operating system:Windows XP1. Double-click the Wireless icon in your desktop’s system tray.2. Open the Wireless Network Connection window.3. Click the Properties button.4. Select the General tab, and click the Configure button.5. In the Properties window, click the Advanced tab.6. Select Power Output.7. From the pull-down menu on the right, select the wireless adapter’s power output percentage.NOTE: The power output setting may not be available on all wireless products. For more information, refer to the documentation on your product’s CD or http://www.linksys.com/international.
77Appendix I: Regulatory InformationWireless-G Broadband RouterWindows 20001. Open the Control Panel.2. Double-click Network and Dial-Up Connections.3. Select your current wireless connection, and select Properties.4. From the Properties screen, click the Configure button.5. Click the Advanced tab, and select Power Output.6. From the pull-down menu on the right, select the wireless adapter’s power setting.If your computer is running Windows Millennium or 98, then refer to Windows Help for instructions on how to access the advanced settings of a network adapter.Wireless Access Points, Routers, or Other Wireless ProductsIf you have a wireless access point, router or other wireless product, use its Web-based Utility to configure its power output setting (refer to the product’s documentation for more information). Technical Documents on www.linksys.com/internationalFollow these steps to access technical documents:1. Browse to http://www.linksys.com/international.2. Click the region in which you reside. 3. Click the name of the country in which you reside.4. Click Products.5. Click the appropriate product category.6. Select a product.7. Click the type of documentation you want. The document will automatically open in PDF format.NOTE: If you have questions regarding the compliance of these products or you cannot find the information you need, please contact your local sales office or visit http://www.linksys.com/international for more details.
78Appendix I: Regulatory InformationWireless-G Broadband RouterUser Information for Consumer Products Covered by EU Directive 2002/96/EC on Waste Electric and Electronic Equipment (WEEE)This document contains important information for users with regards to the proper disposal and recycling of Linksys products. Consumers are required to comply with this notice for all electronic products bearing the following symbol:
79Appendix I: Regulatory InformationWireless-G Broadband Router
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82Appendix I: Regulatory InformationWireless-G Broadband RouterFor more information, visit www.linksys.com.
83Wireless-G Broadband RouterAppendix J: Contact InformationAppendix J: Contact InformationNeed to contact Linksys?Visit us online for information on the latest products and updates to your existing products at:http://www.linksys.com/internationalIf you experience problems with any Linksys product, you can e-mail us at:In Europe E-mail AddressAustria support.at@linksys.comBelgium support.be@linksys.comDenmark support.dk@linksys.comFrance support.fr@linksys.comGermany support.de@linksys.comItaly support.it@linksys.comNetherlands support.nl@linksys.comNorway support.no@linksys.comPortugal support.pt@linksys.comSpain support.es@linksys.comSweden support.se@linksys.comSwitzerland support.ch@linksys.comUnited Kingdom & Ireland support.uk@linksys.comOutside of Europe E-mail AddressAsia Pacific asiasupport@linksys.com (English only)Latin America support.portuguese@linksys.com or support.spanish@linksys.comMiddle East & Africa support.mea@linksys.com (English only)U.S. and Canada support@linksys.com

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