NETGEAR DGN2200V3, N300 user manual Port Forwarding to Permit External Host Communications

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N300 Wireless ADSL2+ Modem Router DGN2200v3

To configure port triggering, you need to know which inbound ports the application needs. Also, you need to know the number of the outbound port that will trigger the opening of the inbound ports. You can usually determine this information by contacting the publisher of the application or the relevant user groups or news groups.

Note: Only one computer at a time can use the triggered application.

Port Forwarding to Permit External Host Communications

In both of the preceding examples, your computer initiates an application session with a server computer on the Internet. However, you might need to allow a client computer on the Internet to initiate a connection to a server computer on your network. Normally, your router ignores any inbound traffic that is not a response to your own outbound traffic. You can configure exceptions to this default rule by using the port forwarding feature.

A typical application of port forwarding can be shown by reversing the client-server relationship from the previous web server example. In this case, a remote computer’s browser needs to access a web server running on a computer in your local network. Using port forwarding, you can tell the router, “When you receive incoming traffic on port 80 (the standard port number for a web server process), forward it to the local computer at 192.168.1.123.” The following sequence shows the effects of the port forwarding rule you have defined:

1.The user of a remote computer opens a browser and requests a web page from www.example.com, which resolves to the public IP address of your router. The remote computer composes a web page request message with the following destination information:

Destination address. The IP address of www.example.com, which is the address of your router.

Destination port number. 80, which is the standard port number for a web server process.

The remote computer then sends this request message through the Internet to your router.

2.Your router receives the request message and looks in its rules table for any rules covering the disposition of incoming port 80 traffic. Your port forwarding rule specifies that incoming port 80 traffic should be forwarded to local IP address 192.168.1.123. Therefore, your router modifies the destination information in the request message:

The destination address is replaced with 192.168.1.123.

Your router then sends this request message to your local network.

3.Your web server at 192.168.1.123 receives the request and composes a return message with the requested web page data. Your web server then sends this reply message to your router.

Security Settings

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Contents N300 Wireless ADSL2+ Modem Router DGN2200v3 Technical Support TrademarksStatement of Conditions Contents Security Settings USB Storage Appendix a Supplemental Information Hardware Setup Hardware Features Unpack Your Modem RouterLabel Front Panel Back PanelN300 Wireless ADSL2+ Modem Router DGN2200v3 Front Panel LEDs WPS Modem Router StandAdsl Microfilters Position Your Modem RouterOne-Line Adsl Microfilter Two-Line Adsl MicrofilterSummary  To cable the modem router Cable Your Modem RouterAdd power to the modem router Verify the Cabling Modem Router Setup Use Standard TCP/IP Properties for Dhcp Modem Router Setup PreparationReplace an Existing Modem and Router Gather ISP InformationNetgear Genie Setup View or Change SettingsSettings Description  To log Log In to the Modem RouterUpgrade Modem Router Firmware  To upgrade the firmwareModem Router Interface  To use the Setup Wizard Setup WizardManual Setup Basic Settings Does Your ISP Require a Login? Answer either yes or no ISP does not require login ISP does require loginInternet IP Address When a login is required, these fields display To manually specify the Adsl settings Adsl SettingsChange Password and Login Time-Out  To change the password and login time-outUnsuccessful Internet Connection Log Out Manually Types of LoginsWireless Adapter Compatibility Wireless SettingsPreset Security Turn Off Wireless ConnectivitySecurity Basics Restrict Access by MAC Address Disable Ssid BroadcastWireless Security Options Add Clients Computers or Devices to Your Network To join the wireless network Wi-Fi Protected Setup WPS Method To join the wireless network using a WPS button Manual MethodWireless Settings Screen View or Change Wireless Settings  To view or change wireless settingsConsider Every Device on Your Network Wireless Settings Screen Fields Wireless NetworkSecurity Options Settings  To change the WPA Security Option and passphrase  To set up WEP securityWireless Guest Networks N300 Wireless ADSL2+ Modem Router DGN2200v3 Security Settings Logs Activation and Administration Examples of Log MessagesDropped Packets Keyword Blocking of Http Traffic  To block sites using keywords Select Security Block Sites To delete a keyword or domain  To specify a trusted computerFirewall Rules to Control Network Access Set Up Firewall Rules To set up firewall rules Port Triggering to Open Incoming Ports Port Forwarding to Permit External Host Communications How Port Forwarding Differs from Port Triggering Set Up Port Forwarding to Local ServersAdd a Custom Service Edit or Delete a Port Forwarding Entry Click Edit Service or Delete ServiceApplication Example Make a Local Web Server Public  To edit or delete a port forwarding entry To enable port triggering Set Up Port Triggering To add a port triggering service Clear the Disable Port Triggering check boxN300 Wireless ADSL2+ Modem Router DGN2200v3  To set the time zone Select Security Schedule Set the Time Zone To schedule services Select Security Schedule Schedule ServicesEnable Security Event Email Notification N300 Wireless ADSL2+ Modem Router DGN2200v3 Network Maintenance Automatic Firmware Check Upgrade the Modem Router Firmware To stop automatic firmware checking Manually Check for Firmware Upgrades To back up the modem router configuration file Back Up and Manage the Configuration File To restore the configuration file  To erase the configurationView Router Status Wireless Port Internet Port SettingsLAN Port Local Ports ModemShow Statistics PortAdsl Link Downstream or Upstream Authentication. On or Off View Attached DevicesConnection Status Select Maintenance Attached Devices Run Diagnostic UtilitiesUSB Storage USB Drive Requirements ReadySHARE AccessSharing Photos File-Sharing ScenariosStoring Files in a Central Location for Printing  To share files with your friends and familySharing Large Files over the Internet USB Storage Basic SettingsN300 Wireless ADSL2+ Modem Router DGN2200v3  To edit a network folder Edit a Network FolderAccess Method USB Storage Advanced SettingsCreate a Network Folder Available Network Folders To create a network folder Safely Remove USB Drive Media Server SettingsSelect the Allow only approved devices check box Approved USB Devices Advanced USB SettingsSelect Maintenance Router Status Connect to the USB Drive with Microsoft Network SettingsConnect to the USB Drive from a Remote Computer Enabling File and Printer SharingConfiguring Windows 2000 and Windows XP Configuring Windows 98SE and Windows MEAdvanced Settings WAN Setup  To assign a computer or server to be a default DMZ server Default DMZ Server To set up Dynamic DNS Select the Use a Dynamic DNS Service check boxDynamic DNS LAN Setup  To change the LAN settings Select Advanced LAN SetupLAN IP address LAN Setup Screen Settings IP Address Reservation To reserve an IP address  To set up QoS Select Advanced QoS Setup Quality of Service QoS To edit or delete a reserved address entry Click Edit or DeleteN300 Wireless ADSL2+ Modem Router DGN2200v3 Advanced Wireless Settings Advanced Wireless Settings To view or change advanced wireless settings WPS Settings Wireless Card Access List To set up a wireless card access list Remote Management Static Route Example Static Routes To add a static route Universal Plug and Play  To set up UPnP Traffic Meter Wireless Bridging and Repeating Networks N300 Wireless ADSL2+ Modem Router DGN2200v3  To set up a point-to-point bridge configuration Set Up a Point-to-Point Bridge To set up the multi-point bridge configuration Set Up a Multi-Point BridgeRepeater with Wireless Client Association Repeater example  To set up a repeater with wireless client association To change the device mode Change the Device ModeTroubleshooting Troubleshooting with the LEDs Power LED Is OffPower LED Is Red LAN LED Is Off Cannot Log In to the Wireless-N Modem RouterAdsl Link Troubleshooting the Internet ConnectionAdsl Link LED Is Green Adsl Link LED Is Blinking GreenTroubleshooting PPPoE or PPPoA Internet LED Is RedObtaining an Internet IP Address Troubleshooting Internet Browsing TCP/IP Network Not RespondingTest the LAN Path to Your Modem Router Ping Test the Path from Your Computer to a Remote DeviceIncorrect Date or Time Changes Not SavedSupplemental Information Factory Default Settings Factory SettingsBest Specification Description SpecificationsNotification of Compliance 113 FCC Information to User FCC Requirements for Operation in the United StatesIndustry Canada Important Note Radiation Exposure StatementGPL License Agreement Interference Reduction Table Index 118 119 120
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DGN2200V3, N300 specifications

The NETGEAR N300 is a high-performance wireless router designed for home and small office use, offering impressive speeds and connectivity for various online activities. With a maximum wireless speed of up to 300 Mbps, it caters efficiently to activities such as streaming HD video, online gaming, and browsing the web. This makes the N300 a versatile choice for users with demanding bandwidth needs.

One of the standout features of the NETGEAR N300 is its compatibility with a range of devices, including laptops, smartphones, tablets, and gaming consoles. The router supports both wired and wireless connections, ensuring that users can connect a variety of gadgets using Ethernet cables or through 802.11n Wi-Fi technology. This dual-band capability enhances flexibility, allowing users to choose the best connection type based on their needs.

The N300 incorporates advanced technologies to optimize performance. Equipped with SpeedBoost technology, it delivers improved range and reliability by adjusting the wireless signal strength. This ensures a stable connection throughout larger homes or office spaces, reducing interruptions and enhancing user experience. The router also features QoS (Quality of Service), which prioritizes bandwidth for high-demand applications, ensuring that streaming and gaming receive the necessary resources for a seamless experience.

Security is a significant concern for many users, and the NETGEAR N300 addresses this with robust security features. It employs WPA/WPA2 encryption for safe wireless communication, protecting sensitive data from potential intruders. Additionally, the router includes a built-in firewall, providing an extra layer of defense against external threats.

Installation and setup are straightforward, thanks to the intuitive web interface and support for multiple languages. Users can quickly configure their network settings, manage connected devices, and monitor performance through a user-friendly dashboard. Additionally, the N300 is equipped with a USB port that enables file sharing and media streaming across the network.

Overall, the NETGEAR N300 is an excellent choice for anyone looking to enhance their home or small office network with reliable performance, strong security, and flexibility. Its combination of speed, range, and user-friendly features makes it a standout option in the wireless router market, catering to the needs of diverse users.
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