NETGEAR DGN3500-100NAS user manual Firewall Rules

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RangeMax Wireless-N DSL Gigabit Modem Router DGN3500 User Manual

You can specify one trusted user, which is a computer that will be exempt from blocking and logging. Since the trusted user will be identified by an IP address, you should configure that computer with a fixed IP address.

7.Click Apply to save your settings.

Firewall Rules

Firewall rules block or allow specific traffic passing through from one side of the router to the other. Inbound rules (WAN to LAN) restrict access by outsiders to private resources, selectively allowing only specific outside users to access specific resources. Outbound rules (LAN to WAN) determine what outside resources local users can have access to.

A firewall has two default rules, one for inbound traffic and one for outbound. The default rules of the modem router are:

Inbound. Block all access from outside except responses to requests from the LAN side.

Outbound. Allow all access from the LAN side to the outside.

You can define additional rules that will specify exceptions to the default rules. By adding custom rules, you can block or allow access based on the service or application, source or destination IP addresses, and time of day. You can also choose to log traffic that matches or does not match the rule you have defined.

You can change the order of precedence of rules so that the rule that applies most often takes effect first. See “Order of Precedence for Rules” on page 3-12for more details.

To access the rules configuration of the modem router, select Firewall Rules on the main menu, and then click Add for either an outbound or inbound service. The Firewall Rules screen displays.

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Protecting Your Network

v1.0, November 2009

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Contents RangeMax Wireless-N DSL Gigabit Modem Router NETGEAR, IncTrademarks Statement of ConditionsEuropean Union Statement of Compliance Bestätigung des Herstellers/Importeurs 1999/5/EGCertificate of the Manufacturer/Importer Voluntary Control Council for Interference Vcci StatementCustomer Support World Wide WebContents Chapter Protecting Your Network Chapter USB Storage Appendix a Technical Specifications About This Manual Conventions, Formats, and ScopeHow to Print This Manual Revision HistoryConnecting Your Router to the Internet Using the Setup ManualLogging In to Your Wireless Modem Router V1.0, November Using the Setup Wizard Viewing or Manually Configuring Your ISP SettingsISP does not require login Basic Settings screen fields Settings DescriptionGet Automatically from ISP. Your ISP uses Dhcp to Want to useConfiguring Adsl Settings Chapter Configuring Your Wireless Network Security Settings Planning Your Wireless NetworkWireless Placement and Range Guidelines See Manually Configuring Your Wireless Security onWireless Security Options Manually Configuring Your Wireless Settings Wireless Settings NETGEAR4Ssid WPA-802.1x Manually Configuring Your Wireless SecurityRestricting Wireless Access to Your Network Turning off wireless connectivity completely V1.0, November Configuring Mixed WPA-PSK+WPA2-PSK Security Configuring WEP Configuring WPA-802.1x Bit WEPUsing Push N Connect WPS to Configure Your Wireless Network Using a WPS Button to Add a WPS Client Using PIN Entry to Add a WPS Client V1.0, November Adding More WPS Clients Adding Both WPS and Non-WPS ClientsConfiguring Advanced WPS Settings V1.0, November Protecting Access to Your Wireless Modem Router Chapter Protecting Your NetworkHow to Change the Built-In Password Viewing Logs of Web Access or Attempted Web Access Changing the Administrator Login Time-outField Description Blocking SitesLog Entry Descriptions V1.0, November Firewall Rules Inbound Rules Port Forwarding Inbound Rule Example a Local Public Web Server Inbound Rule Example Allowing Video conferencing Outbound Rules Service Blocking Considerations for Inbound RulesV1.0, November Order of Precedence for Rules Services V1.0, November Setting Times and Scheduling Firewall Services Setting Your Time ZoneScheduling Firewall Services Configuring E-mail Alerts and Web Access Log Notifications Select the Turn E-mail Notification On check boxV1.0, November Chapter Managing Your Network Upgrading the FirmwareManually Checking for Firmware Upgrades V1.0, November Viewing Wireless Modem Router Status Information Wireless Modem Router Status Fields Explains Router Status screen fieldsConnection Status Statistics Connection Status SettingsWireless Modem Router Statistics Viewing a List of Attached Devices Managing the Configuration File Backing Up and Restoring the ConfigurationErasing the Configuration Enabling Remote Management Access Select the Turn Remote Management On check box Chapter Advanced Configuration WAN SetupWAN Setup Settings Setting DescriptionSetting Up a Default DMZ Server MTU Size onV1.0, November LAN Setup fields are explained in the following table LAN SetupUsing the Wireless Modem Router as a Dhcp Server Address ReservationConfiguring LAN Setup V1.0, November LAN Setup fields are explained in the following table Using the Wireless Modem Router as a Dhcp Server Dynamic DNS Service Select the Use a Dynamic DNS Service check box Setting up Static Routes Static Route ExampleConfiguring Static Routes Configuring Universal Plug and Play V1.0, November Building Wireless Bridging and Repeating Networks Configuring a Point-to-Point Bridge Configuration Configuring a Repeater with Wireless Client Association Internet Wireless PC 192.168.0.1 V1.0, November Chapter USB Storage Bus Speed/Second USB Drive RequirementsFile Sharing Scenarios Sharing Large Files with Colleagues Sharing Photos with Friends and FamilyStoring Files in a Central Location for Printing USB Storage Basic Settings USB Storage Basic Settings \\readyshare\\readyshare\USBStorage Fields and Buttons DescriptionSafely Remove USB Device button Editing a Network Folder Fields Description Configuring USB Storage Advanced SettingsUSB Storage Advanced Settings Http Unmounting a USB Drive Creating a Network FolderSpecifying Approved USB Devices Select the Allow only approved devices check boxConnecting to the USB Drive from a Remote Computer Connecting to the USB Drive with Microsoft Network SettingsAccessing the Router’s USB Drive Remotely Using FTP Locating the Internet Port IP AddressConfiguring Windows 98SE and Windows ME Enabling File and Printer SharingChapter Troubleshooting Basic FunctioningPower LED Is Not On Power LED Is RedWindow Appears Asking You to Reload Firmware Cannot Log in to the Wireless Modem RouterLAN or Adsl Port LED Is Not On Troubleshooting the ISP Connection Adsl LinkInternet LED is Red Adsl Link LED Is Blinking AmberTroubleshooting PPPoE or PPPoA Obtaining an Internet IP AddressTroubleshooting Internet Browsing Resolving a ‘Reload Firmware’ MessageTroubleshooting a TCP/IP Network Using the Ping Utility Testing the LAN Path to Your RouterTesting the Path from Your Computer to a Remote Device Ping -n 10 IP addressRestoring the Default Configuration and Password Problems with Date and TimeAppendix a Technical Specifications General SpecificationsFactory Default Configuration Specification Description Interface SpecificationsFeature Default Behavior Login Internet ConnectionFirewall Feature Default BehaviorWireless Appendix B Related Documents Document LinkIndex NumericsIndex-2 Index-3