Cisco Systems WRT110 manual Security Firewall, Internet Filter, Web Filter

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Chapter 3

Advanced Configuration

N and Wireless-G transmissions but will severely decrease performance. The default is Auto.

Beacon Interval  Enter a value between 20 and 999 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. 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 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.

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

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 feature makes it more difficult for outside users to work their way into your network. This feature is selected by default. Deselect the feature 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 this feature to filter multicasting. This feature is not selected by default.

Filter Internet NAT Redirection  This feature uses port forwarding to block access to local servers from local networked computers. Select this feature to filter Internet NAT redirection. It is not selected by default.

Filter IDENT (Port 113)  This feature keeps port 113 from being scanned by devices outside of your local network. This feature is selected by default. Deselect this feature to disable it.

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 feature to enable proxy filtering. Deselect the feature to allow proxy access.

Java  Java is a programming language for websites. If you deny Java, you run the risk of not having access to Internet

RangePlus Wireless Router

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Contents RangePlus Wireless Router About This Guide Icon DescriptionsOnline Resources Copyright and TrademarksTable of Contents Appendix D Regulatory Information Appendix E Software License AgreementHorizontal Placement Chapter Product OverviewFront Panel Back PanelWall-Mounting Placement Suggested Mounting HardwareAdditional Security Tips Chapter Wireless Security ChecklistGeneral Network Security Guidelines Chapter Advanced Configuration How to Access the Web-Based UtilitySetup Basic Setup Internet SetupStatic IP PPPoEOptional Settings Telstra CableNetwork Setup Dhcp Server SettingRouter IP Dhcp ReservationSetup Ddns Time SettingDdns Service DynDNS.orgSetup MAC Address Clone Setup Advanced RoutingMAC Address Clone Advanced RoutingRouting Table Wireless Basic Wireless SettingsBasic Wireless Settings Wireless Security Wireless Wireless SecurityWi-Fi Protected Setup WPA Personal WPA2 PersonalWPA Enterprise WPA2 EnterpriseRadius Wireless Wireless MAC Filter Wireless MAC FilterAccess Restriction MAC Address Filter ListAdvanced Wireless Wireless Client ListSecurity Firewall FirewallInternet Filter Web FilterInternet Access Policy Security VPN PassthroughVPN Passthrough SummaryApplications and Gaming Single Port Forwarding Port Range Forwarding Applications and Gaming Port Range ForwardingSingle Port Forwarding Applications & Gaming Port Range Triggering Applications and Gaming DMZPort Range Triggering Dhcp Client TableQoS Quality of Service WirelessInternet Access Priority Applications and Gaming QoSAdministration Management Online GamesMAC Address Ethernet PortAdministration Log ManagementLog Administration DiagnosticsDiagnostics Administration Factory Defaults Administration Firmware UpgradeFactory Defaults Upgrade FirmwareStatus Router Status Local NetworkStatus Wireless Network Wireless NetworkAppendix a Troubleshooting Your computer cannot connect to the InternetAppendix B Specifications EnvironmentalExclusions and Limitations Limited WarrantyObtaining Warranty Service Technical Support Safety Notices FCC StatementFCC Radiation Exposure Statement Industry Canada StatementWireless Disclaimer Avis d’Industrie CanadaDansk Danish Miljøinformation for kunder i EU Regulatory Information Norsk Norwegian Miljøinformasjon for kunder i EU Regulatory Information Schedule 1 Linksys Software License Agreement Software in Linksys ProductsSoftware Licenses Schedule PreambleSoftware License Agreement Software License Agreement No Warranty OpenSSL License Original SSLeay License8041510B-DF