NETGEAR WNDR3300 manual Understanding Your Firewall

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NETGEAR RangeMax™ Dual Band Wireless-N Router WNDR3300 Reference Manual

Understanding Your Firewall

Your RangeMax Dual Band Wireless-N Router WNDR3300 contains a true firewall to protect your network from attacks and intrusions. A firewall is a device that protects one network from another while allowing communication between the two. Using a process called Stateful Packet Inspection, the firewall analyzes all inbound and outbound traffic to determine whether or not it will be allowed to pass through.

By default, the firewall allows any outbound traffic and prohibits any inbound traffic except for responses to your outbound traffic. However, you can modify the firewall’s rules to achieve the following behavior:

•Blocking sites. Block access from your network to certain Web locations based on Web addresses and Web address keywords. This feature is described in “Blocking Access to Internet Sites” on page 3-1.

•Blocking services. Block the use of certain Internet services by specific computers on your network. This feature is described in “Blocking Access to Internet Services” on page 3-3.

•Scheduled blocking. Block sites and services according to a daily schedule. This feature is described in “Scheduling Blocking” on page 3-5.

•Allow inbound access to your server. To allow inbound access to resources on your local network (for example, a Web server or remote desktop program), you can open the needed services by configuring port forwarding as described in “Allowing Inbound Connections To Your Network” on page 5-1.

•Allow certain games and applications to function correctly. Some games and applications need to allow additional inbound traffic to function. Port triggering can dynamically allow additional service connections, as described in “Allowing Inbound Connections To Your Network” on page 5-1. Another feature to solve application conflicts with the firewall is Universal Plug and Play (UPnP), described in “Using Universal Plug and Play” on page 5-12.

Safeguarding Your Network

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v1.0, February 2008

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Contents NETGEAR, Inc Regulatory Compliance Information Europe EU Declaration of Conformity FCC Requirements for Operation in the United States FCC Information to UserFCC Guidelines for Human Exposure FCC Radio Frequency Interference Warnings & Instructions FCC Declaration Of ConformityProduct and Publication Details Contents Chapter Restricting Access From Your Network Chapter Using Network Monitoring Tools Appendix a Technical Specifications Conventions, Formats, and Scope About This ManualHow to Print This Manual How to Use This ManualRevision History Publication Revision HistoryVersion Date Description V1.0 February Original publication Xiv Using the Setup Manual Chapter Configuring Basic ConnectivityLogging In to Your Wireless Router V1.0, February V1.0, February Viewing and Configuring Basic ISP Settings ISP does not require login V1.0, February ISP does require login V1.0, February V1.0, February Choosing Appropriate Wireless Security Chapter Safeguarding Your NetworkWireless data Security optionsRange up to 300 foot radius Other Features That Enhance Security Wireless Security OptionsRecording Basic Wireless Settings Setup Information Use WPS Wi-Fi Protected SetupModify your firewall’s rules Changing Basic Wireless Settings 11G SSID. NETGEAR-2.4-G Viewing Basic Wireless SettingsV1.0, February Configuring WEP Wireless Security V1.0, February V1.0, February Viewing Advanced Wireless Settings Using WPS Security Wi-Fi Protected Setup Push Button Configuration PIN Entry Configuring the WPS SettingsYou can add WPS-enabled and non-WPS-enabled client devices Adding Additional Non-WPS-Enabled Clients Adding Additional WPS-Enabled ClientsRestricting Wireless Access by MAC Address V1.0, February Select the Turn Access Control On check box Changing the Administrator PasswordBacking Up Your Configuration Understanding Your Firewall V1.0, February Restricting Access From Your Network Content Filtering OverviewBlocking Access to Internet Sites V1.0, February Blocking Access to Internet Services Configuring a User-Defined Service Scheduling Blocking Blocking Services by IP Address RangeViewing Logs of Web Access or Attempted Web Access Configuring E-mail Alert and Web Access Log Notifications Log Entry DescriptionsField Description V1.0, February Setting the Time V1.0, February Using the LAN Setup Options Chapter Customizing Your Network SettingsConfiguring LAN TCP/IP Setup Parameters Configuring a Device NameUsing the Router as a Dhcp Server Using Address Reservation Using a Dynamic DNS Service Select the Use a Dynamic DNS Service check box Configuring the WAN Setup Options Setting Up a Default DMZ ServerDisabling the SPI Firewall Responding to a Ping on the Internet WAN Port Setting the MTU SizeConfiguring NAT Filtering Configuring Static RoutesV1.0, February V1.0, February V1.0, February Allowing Inbound Connections To Your Network Chapter Fine-Tuning Your NetworkV1.0, February How Port Triggering Changes the Communication Process V1.0, February How Port Forwarding Changes the Communication Process How Port Forwarding Differs from Port Triggering Configuring Port Forwarding to Local ServersAdding a Custom Service Application Example Making a Local Web Server Public Editing or Deleting a Port Forwarding EntryTo the instructions in Using Universal Plug and Play on Configuring Port TriggeringClear the Disable Port Triggering check box Click Add Service Using Universal Plug and Play Identify critical wireless links Optimizing Wireless PerformanceReduce interference Configuring Quality of ServiceUsing WMM QoS for Wireless Multimedia Applications QoS for Applications and Online Gaming Configuring QoS for Internet AccessClick Add Priority Rule QoS for a Router LAN PortQoS for a MAC Address Editing or Deleting an Existing QoS Policy MSN Changing the MTUOptimizing Your Network Bandwidth Common MTU SizesApplication RangeMax Dual Band Wireless-N Router WNDR3300 Overview of Home and Small Office Networking Technologies Assessing Your Speed Requirements Theoretical Transfer Time for 1 GigabyteNetwork Connection Theoretical Raw Transfer Time Viewing Wireless Router Status Information Chapter Using Network Monitoring Tools1describes the router status fields Wireless Router Status FieldsDhcp 270Mbps at 5GHz & 54Mbps at 2.4GHz mode, there are two 270Mbps at 2.4GHz mode and Up to 130Mbps at 2.4GHz mode,Connection Status Settings Router Statistics Viewing a List of Attached Devices Managing the Configuration FileBacking Up and Restoring the Configuration Upgrading the Router Software Erasing the ConfigurationV1.0, February Upgrading Automatically to New Router Software Upgrading Manually to New Router Software Select the Turn Remote Management On check box Enabling Remote Management AccessV1.0, February Chapter Troubleshooting Troubleshooting Quick TipsBe sure to restart your network in this sequence Troubleshooting Basic Functions Make sure that the Ethernet cables are securely pluggedCheck the Test light to verify correct router operation Power light is not on or is blinking Lights never turn offInternet or Ethernet port lights are not on Wireless light is not on Troubleshooting the Web Configuration InterfaceTroubleshooting the Internet Connection Troubleshooting a Network Using the Ping Utility Request timed out Testing the LAN Path to Your RouterTesting the Path from Your Computer to a Remote Device Problems with Date and TimeUsing Your Wireless Card Setup Program Solving Wireless Connection ProblemsSetting Up and Testing Basic Wireless Connectivity V1.0, January V1.0, January Restoring the Default Configuration and Password V1.0, January Appendix a Technical Specifications Default Configuration SettingsTable A-1. WNDR3300 Router Default Configuration Settings 11N Ssid NETGEAR-DualBand-N Feature Default Setting WirelessFirewall Network Protocol and Standards CompatibilityPhysical Specifications Feature Default Setting Power AdapterEnvironmental Specifications Electromagnetic EmissionsFeature Default Setting Interface Specifications Restoring the Default User Name and PasswordV1.0, February V1.0, February Document Link Appendix B Related DocumentsV1.0, February Index Index-2 Index-3 Index-4 Index-5 Index-6

WNDR3300 specifications

The NETGEAR WNDR3300 is a versatile and powerful wireless router designed to deliver reliable network performance for homes and small offices. Launched as part of NETGEAR's popular RangeMax series, the WNDR3300 encompasses several advanced technologies to ensure robust connectivity and seamless internet access for multiple devices.

One of the standout features of the WNDR3300 is its dual-band capability. Supporting both the 2.4 GHz and 5 GHz frequency bands, the router enables users to connect multiple devices without interference. The 2.4 GHz band offers broader coverage and is ideal for basic web browsing and email, while the 5 GHz band is designed for high-bandwidth activities such as video streaming and online gaming. This dual-band operation helps to alleviate congestion, improve performance, and enhance the overall user experience.

With its 802.11n wireless technology, the WNDR3300 boasts impressive speeds of up to 300 Mbps. The router utilizes MIMO (Multiple Input Multiple Output) technology, which employs multiple antennas for both transmitting and receiving signals, resulting in improved range and coverage. This technology is particularly beneficial in larger homes where traditional single-antenna routers might struggle to provide strong signals in distant rooms.

Another significant aspect of the WNDR3300 is its built-in firewall and security features. The router offers WPA/WPA2 encryption, which protects users from unauthorized access and secures personal data while browsing. Additionally, the router includes parental control features, enabling users to manage their family's internet usage effectively. These controls allow for the restriction of specific websites, scheduling of internet access times, and monitoring of online activity.

The WNDR3300 also includes several Ethernet ports, allowing for wired connections to desktops, gaming consoles, and other devices. With four LAN ports, users can easily connect multiple devices for stable and high-speed internet access. Moreover, the router supports dynamic DNS and VLAN support, making it a suitable option for advanced users looking to customize their network setup.

Installing and configuring the WNDR3300 is straightforward, thanks to its user-friendly web interface. NETGEAR also provides a WPS (Wi-Fi Protected Setup) button, allowing users to connect devices securely with just a push of a button, simplifying the connection process.

In conclusion, the NETGEAR WNDR3300 is an excellent choice for users seeking a reliable and fast wireless networking solution. With its dual-band capabilities, advanced security features, and user-friendly setup, it effectively meets the demands of modern internet usage, making it a valuable addition to any home or small office network.
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