Linksys E2000 manual Security Firewall, Internet Filter, Web Filter

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Linksys E2000

CTS Protection Mode  The Router automatically uses CTS (Clear-To-Send) Protection Mode when your Wireless-N and Wireless-G devices are experiencing severe problems and are not able to transmit to the Router in an environment with heavy 802..11b traffic..This option boosts the Router’s ability to catch all Wireless-N and Wireless-G transmissions but severely decreases performance.. To use this option, keep the default, Auto.. To disable this option, select Disabled..

Beacon Interval  A beacon is a packet broadcast by the Router to synchronize the wireless network.. The Beacon Interval value indicates the frequency interval of the beacon.. Enter a value between 20 and 65,535 milliseconds.. The default value is 100..

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 Request to Send (RTS) threshold size, the RTS/CTS (Clear to Send) mechanism will not be enabled.. The Router sends 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 CTS frame to acknowledge the right to begin transmission.. The RTS Threshold value should remain at its default value of 2347..

Click Save Settings to apply your changes, or click Cancel Changes to clear your changes..

Chapter 3: Advanced Configuration

Security > Firewall

The Firewall screen is used to configure a firewall that can filter out various types of unwanted traffic on the Router’s local network..

Security > Firewall

Firewall

SPI Firewall Protection  To use firewall protection, keep the default selection, Enabled.. To turn off firewall protection, select Disabled..

Internet Filter

Filter Anonymous Internet Requests  This option makes it more difficult for outside users to work their way into your network.. This option is enabled by default.. Disable it to allow anonymous Internet requests..

Filter Multicast  The multicasting feature 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 this option to enable the filter.. This option is disabled by default..

Filter Internet NAT Redirection  This option is used to prevent a local computer from using a URL or Internet address to access the local server.. Select this option to enable the filter.. This option is disabled by default..

Filter IDENT (Port 113)  The Filter IDENT (Identification) option keeps port 113 from being scanned by devices outside of your local network.. This option is enabled by default.. Disable it to allow port 113 to be scanned..

Web Filter

Proxy  Use of WAN proxy servers may compromise the Gateway’s security.. Denying Proxy will disable access to any WAN proxy servers.. Select this option to enable proxy filtering.. Deselect the option to allow proxy access..

Advanced Wireless-N Router

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Contents User Guide Contents Appendix E Software End User License Agreement Status Wireless NetworkLimited Warranty Appendix D Regulatory InformationProduct Overview TopBack Two screws are needed to mount the Router Placement PositionsHorizontal Placement Wall-Mounting PlacementDouble-click your CD-ROM drive InstallationTo install the Router Insert the CD into your CD-ROM drive Cisco ConnectMain Menu Plug the power adapter into an electrical outletInstallation is complete.. Click OK When Cisco Connect starts up, the main menu appearsMain Menu Computers and Devices Local Access versus Guest AccessMain Menu Guest Access Main Menu Router SettingsConnect with the Easy Setup Key Computers and Other DevicesComputer Connect Manually Wireless PrinterCreate or Update the Easy Setup Key Please wait while settings are copied to the Easy Setup KeyParental controls main screen appears First-Time Access of Parental ControlsParental Controls Parental controls screen appearsRestrict Internet Access List Set Up Parental ControlsEnter the new name.. Then click Rename Router settings screen appears Guest AccessRouter Settings Change Parental Controls PasswordOther Options Easy Setup KeyChange Router Name or Password Click Close to return to the Router settings screenWindows How to Exit Cisco ConnectHow to Access Cisco Connect Advanced SettingsInternet Setup Advanced ConfigurationHow to Access the Browser-Based Utility Setup Basic SetupMinutes Automatic Configuration DhcpStatic IP PPPoETelstra Cable Optional SettingsDhcp Reservation Network SetupDhcp Server Setting Router IPDynDNS..org Setup DdnsTime Setting Ddns ServiceAdvanced Routing Setup MAC Address CloneSetup Advanced Routing MAC Address CloneWireless Basic Wireless Settings Manual SetupRouting Table Wi-Fi Protected Setup Office Option Wireless Wireless Security Security Mode Personal OptionsWireless Wireless MAC Filter Wireless MAC FilterAccess Restriction MAC Address Filter List Wireless Advanced Wireless SettingsAdvanced Wireless Wireless Client ListWeb Filter Security FirewallFirewall Internet FilterVPN Passthrough Access Restrictions Internet AccessInternet Access Policy Security VPN PassthroughSingle Port Forwarding Applications and Gaming Single Port ForwardingPort Range Triggering Applications and Gaming Port Range ForwardingApplications & Gaming Port Range Triggering Port Range ForwardingQoS WirelessApplications and Gaming DMZ Applications and Gaming QoSCategory Internet Access PriorityMAC Address Administration ManagementWeb Access ManagementLog Administration LogPing Test Administration DiagnosticsReboot DiagnosticsAdministration Factory Defaults Administration Firmware UpgradeStatus Router Status Local Network Status Wireless NetworkAppendix a Troubleshooting Click the Connections tabClick OK Appendix B Specifications A, Canada, Asia Pacific, Australia, New Zealand Appendix C Warranty InformationObtaining Warranty Service FCC Radiation Exposure Statement Safety Notices Industry Canada StatementAppendix D Regulatory Information FCC StatementWireless Disclaimer Avis d’Industrie CanadaRestrictions dans la bande 5 GHz Linksys E2000 Schedule Cisco Software License Agreement Appendix E Software End User License AgreementCisco Products Software LicensesLinksys E2000 Appendix E Software End User License Agreement Linksys E2000 Appendix E Software End User License Agreement Linksys E2000 Appendix E Software End User License Agreement Version 2, June Schedule Open Source and Third Party LicensesSchedule 2-A PreambleLinksys E2000 Appendix E Software End User License Agreement No Warranty Version 2..1, February Schedule 2-BLinksys E2000 Appendix E Software End User License Agreement Linksys E2000 Appendix E Software End User License Agreement Linksys E2000 Appendix E Software End User License Agreement END of Terms and Conditions END of Schedule 2-B Schedule 2-C OpenSSL LicenseOriginal SSLeay License END of Schedule 2-C 10012110NC-AI