Linksys BEFSR81 manual Can’t get the Internet game, server, or application to work

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EtherFast Cable/DSL Router with 8-Port Switch

D.Select the protocol you will be using, TCP or UDP, or select Both.

E.Enter the IP address of the PC or network device that you want the port server to go to. For example, if the web server’s Ethernet adapter IP address is 192.168.1.100, you would enter 100 in the field provided. Check “Appendix C: Finding the MAC Address and IP Address for Your Ethernet Adapter” for details on getting an IP address.

F.Check the Enabled option for the port services you want to use. Consider the example below:

Application

Start and End

Protocol

IP Address

Enabled

 

 

 

 

 

UT

7777 to 27900

Both

192.168.1.100

X

 

 

 

 

 

Halflife

27015 to 27015

Both

192.168.1.105

X

 

 

 

 

 

PC Anywhere

5631 to 5631

UDP

192.168.1.102

X

 

 

 

 

 

VPN IPSEC

500 to 500

UDP

192.168.1.100

X

 

 

 

 

 

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.) Follow these steps to set DMZ hosting:

A.Access the Router’s Web-based Utility by going to http://192.168.1.1 or the IP address of the Router. Go to the Applications & Gaming => Port Range Forwarding tab.

B.Disable or remove the entries you have entered for forwarding. Keep this information in case you want to use it at a later time.

C.Click the DMZ tab.

D.Enter the Ethernet adapter’s IP address of the computer you want exposed to the Internet. This will bypass the NAT security for that computer. Please refer to “Appendix C: Finding the MAC Address and IP Address for Your Ethernet Adapter” for details on getting an IP address.

Once completed with the configuration, click the Save Settings button.

Appendix A: Troubleshooting

45

Common Problems and Solutions

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Contents Cable/DSL Router How to Use this Guide Copyright and TrademarksWord definition Table of Contents Ethernet Adapter Appendix a TroubleshootingCommon Problems and Solutions Frequently Asked Questions Appendix B Upgrading FirmwareBack Panel List of FiguresDdns Disabled Welcome IntroductionWhat’s in this Guide? EtherFast Cable/DSL Router with 8-Port Switch Networking Basics An Introduction to LANsUse of IP Addresses Networking Basics Use of IP Addresses Getting to Know the Router Reset Button Reset button can be used in one of two waysFront Panel Overview Connecting the RouterConnect a PC Connection InstructionsConfiguring Windows 98 and Millennium PCs Configuring the PCsConfiguring Windows XP PCs Configuring Windows 2000 PCsInternet Protocol TCP/IP for Windows XP Instructions Configuring the RouterStatic IP Obtain an IP Automatically or DhcpRAS PPPoEPptp Heart Beat SignalSecurity Using The Router’s Web-based UtilitySetup Navigating the UtilityStatus Quick and Easy AdministrationAdministration Applications & GamingInternet Setup Basic SetupPPPoE RAS for SingTelPptp Heart Beat SignalNetwork Setup Optional SettingsRouter IP Ddns Network Address Server Settings DhcpMAC Address Clone DynDNS.orgTZO.com MAC Clone Advanced Routing14 Routing Table FilterBlock WAN Requests Filter IP Address RangeFilter Port Range Filter MAC AddressVPN Passthrough Port Range ForwardingPort Range Port Triggering Triggered RangeForwarded Range 20 UPnP Forwarding UPnP ForwardingDMZ QoS QoSApplication-based QoS Port-based QoS Router AccessLocal Router Access ManagementIdentification Remote Router AccessUPnP Log25 Incoming Log Table Factory DefaultsInformation Firmware UpgradeUpgrade Firmware Router31 Local Network Local NetworkFor Windows Appendix a TroubleshootingCommon Problems and Solutions For Windows 98 and MillenniumFor Windows XP For Windows 98 and Millennium EtherFast Cable/DSL Router with 8-Port Switch Need to set up a server behind my Router Am not able to access the Router’s Web-based Utility SetupTCP Application Start and End Protocol IP Address EnabledCan’t get the Internet game, server, or application to work For Netscape 4.7 or higher To start over, I need to set the Router to factory defaultNeed to upgrade the firmware For Microsoft Internet Explorer 5.0 or higherMy DSL service’s PPPoE is always disconnecting Firmware upgrade failedNeed to use port triggering Does the Router support IPX or AppleTalk? Frequently Asked QuestionsWhere is the Router installed on the network? Is IPSec Passthrough supported by the Router?How can I block corrupted FTP downloads? How many ports can be simultaneously forwarded? What is DMZ Hosting?Will the Router function in a Macintosh environment? Is the Router cross-platform compatible?How do I get mIRC to work with the Router? How can I check whether I have static or Dhcp IP addresses?Appendix B Upgrading Firmware Figure B-1 Upgrade FirmwareWindows 2000 or XP Instructions Windows 98 or Me InstructionsFigure C-3 MAC Address/Physical Address For the Router’s Web-based UtilityAppendix D Windows Help Shared ResourcesNetwork Neighborhood/My Network Places Appendix E Glossary EtherFast Cable/DSL Router with 8-Port Switch EtherFast Cable/DSL Router with 8-Port Switch EtherFast Cable/DSL Router with 8-Port Switch EtherFast Cable/DSL Router with 8-Port Switch EtherFast Cable/DSL Router with 8-Port Switch Ports Appendix F SpecificationsEight 10/100 RJ-45 Switched Ports StandardsLimited Warranty Appendix G Warranty InformationFCC Statement Appendix H Regulatory InformationAppendix I Contact Information Need to contact Linksys?Information section in this Guide
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BEFSR81 specifications

The Linksys BEFSR81 is a highly regarded router that stands as a staple in home networking solutions. With its robust set of features, it has catered to both casual users and technology enthusiasts alike. The BEFSR81 is primarily known for its versatile connectivity options, making it a popular choice for users looking to connect multiple devices without compromising speed or reliability.

One of the standout features of the Linksys BEFSR81 is its ability to support up to eight Ethernet ports, allowing for extensive wired connections. This is particularly beneficial for users with multiple devices that require stable internet access, such as gaming consoles, desktop computers, and smart home devices. Additionally, the router supports advanced networking features, including DHCP server capabilities and network address translation (NAT), further optimizing performance and security.

In terms of security, the BEFSR81 offers stateful packet inspection firewalls and support for Wi-Fi Protected Access (WPA) encryption, ensuring that users' data and privacy are well-protected. It also includes features like MAC address filtering, which allows users to create a whitelist of devices permitted to access the network, bolstering security even further.

The Linksys BEFSR81 adopts a user-friendly interface that simplifies the setup process, making it accessible for individuals with varying levels of technical expertise. Users can manage their network settings effortlessly via the web-based management interface, enabling them to configure passwords, adjust settings, and monitor network activity.

Moreover, the BEFSR81 supports Quality of Service (QoS) features that prioritize bandwidth for certain applications, ensuring that streaming services, online gaming, and video conferencing perform optimally without lag. This is particularly advantageous in households with numerous users engaging in data-intensive activities simultaneously.

Overall, the Linksys BEFSR81 remains a reliable choice for those seeking a well-rounded router that combines a feature-rich design with robust performance. Whether for home office use, casual browsing, or intensive gaming, the BEFSR81 meets the demands of modern networking needs, ensuring a seamless and secure internet experience for its users.
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