NETGEAR N300, DGN2200V3 user manual Port Triggering to Open Incoming Ports

Page 44

N300 Wireless ADSL2+ Modem Router DGN2200v3

4.To open or close instant messaging, select one of the following radio buttons:

•Close IM Ports. Disables instant messaging traffic.

•Open IM Ports. Enables instant messaging traffic. IM ports are open by default.

5.Click Apply to save your settings.

Port Triggering to Open Incoming Ports

Some application servers (such as FTP and IRC servers) send replies back to multiple port numbers. Using the port triggering function of your router, you can tell the router to open additional incoming ports when a particular outgoing port originates a session.

An example is Internet Relay Chat (IRC). Your computer connects to an IRC server at destination port 6667. The IRC server not only responds to your originating source port, but also sends an “identify” message to your computer on port 113. Using port triggering, you can tell the router, “When you initiate a session with destination port 6667, you have to also allow incoming traffic on port 113 to reach the originating computer.” Using steps similar to the preceding example, the following sequence shows the effects of the port triggering rule you have defined:

1.You open an IRC client program to start a chat session on your computer.

2.Your IRC client composes a request message to an IRC server using a destination port number of 6667, the standard port number for an IRC server process. Your computer then sends this request message to your router.

3.Your router creates an entry in its internal session table describing this communication session between your computer and the IRC server. Your router stores the original information, performs Network Address Translation (NAT) on the source address and port, and sends this request message through the Internet to the IRC server.

4.Noting your port triggering rule and having observed the destination port number of 6667, your router creates an additional session entry to send any incoming port 113 traffic to your computer.

5.The IRC server sends a return message to your router using the NAT-assigned source port (for example, port 33333) as the destination port. The IRC server also sends an “identify” message to your router with destination port 113.

6.Upon receiving the incoming message to destination port 33333, your router checks its session table to determine whether there is an active session for port number 33333. Finding an active session, the router restores the original address information replaced by NAT and sends this reply message to your computer.

7.Upon receiving the incoming message to destination port 113, your router checks its session table and learns that there is an active session for port 113, associated with your computer. The router replaces the message’s destination IP address with your computer’s IP address and forwards the message to your computer.

8.When you finish your chat session, your router eventually senses a period of inactivity in the communications. The router then removes the session information from its session table, and incoming traffic is no longer accepted on port numbers 33333 or 113.

Security Settings

44

Page 43 Page 45
Image 44
Page 43 Page 45
Contents N300 Wireless ADSL2+ Modem Router DGN2200v3 Statement of Conditions Technical SupportTrademarks Contents Security Settings USB Storage Appendix a Supplemental Information Hardware Setup Label Hardware FeaturesUnpack Your Modem Router Back Panel Front PanelN300 Wireless ADSL2+ Modem Router DGN2200v3 Front Panel LEDs Modem Router Stand WPSPosition Your Modem Router Adsl MicrofiltersSummary One-Line Adsl MicrofilterTwo-Line Adsl Microfilter Cable Your Modem Router  To cable the modem routerAdd power to the modem router Verify the Cabling Modem Router Setup Modem Router Setup Preparation Use Standard TCP/IP Properties for DhcpReplace an Existing Modem and Router Gather ISP InformationSettings Description Netgear Genie SetupView or Change Settings Log In to the Modem Router  To logModem Router Interface Upgrade Modem Router Firmware To upgrade the firmware Setup Wizard  To use the Setup WizardManual Setup Basic Settings ISP does not require login ISP does require login Does Your ISP Require a Login? Answer either yes or noWhen a login is required, these fields display Internet IP AddressAdsl Settings  To manually specify the Adsl settingsUnsuccessful Internet Connection Change Password and Login Time-Out To change the password and login time-out Types of Logins Log Out ManuallyWireless Settings Wireless Adapter CompatibilitySecurity Basics Preset SecurityTurn Off Wireless Connectivity Disable Ssid Broadcast Restrict Access by MAC AddressWireless Security Options Add Clients Computers or Devices to Your NetworkWi-Fi Protected Setup WPS Method  To join the wireless network To join the wireless network using a WPS button Manual MethodWireless Settings Screen Consider Every Device on Your Network View or Change Wireless Settings To view or change wireless settings Security Options Settings Wireless Settings Screen FieldsWireless Network  To set up WEP security  To change the WPA Security Option and passphraseWireless Guest Networks N300 Wireless ADSL2+ Modem Router DGN2200v3 Security Settings Logs Dropped Packets Activation and AdministrationExamples of Log Messages  To block sites using keywords Select Security Block Sites Keyword Blocking of Http Traffic To delete a keyword or domain  To specify a trusted computer To set up firewall rules Firewall Rules to Control Network AccessSet Up Firewall Rules Port Triggering to Open Incoming Ports Port Forwarding to Permit External Host Communications Set Up Port Forwarding to Local Servers How Port Forwarding Differs from Port TriggeringAdd a Custom Service Click Edit Service or Delete Service Edit or Delete a Port Forwarding EntryApplication Example Make a Local Web Server Public  To edit or delete a port forwarding entrySet Up Port Triggering  To enable port triggeringClear the Disable Port Triggering check box  To add a port triggering serviceN300 Wireless ADSL2+ Modem Router DGN2200v3 Set the Time Zone  To set the time zone Select Security ScheduleSchedule Services  To schedule services Select Security ScheduleEnable Security Event Email Notification N300 Wireless ADSL2+ Modem Router DGN2200v3 Network Maintenance Upgrade the Modem Router Firmware Automatic Firmware CheckManually Check for Firmware Upgrades  To stop automatic firmware checkingBack Up and Manage the Configuration File  To back up the modem router configuration fileView Router Status  To restore the configuration file To erase the configuration Internet Port Settings Wireless PortLAN Port Local Ports ModemAdsl Link Downstream or Upstream Show StatisticsPort Connection Status Authentication. On or OffView Attached Devices Run Diagnostic Utilities Select Maintenance Attached DevicesUSB Storage ReadySHARE Access USB Drive RequirementsFile-Sharing Scenarios Sharing PhotosStoring Files in a Central Location for Printing  To share files with your friends and familyUSB Storage Basic Settings Sharing Large Files over the InternetN300 Wireless ADSL2+ Modem Router DGN2200v3 Edit a Network Folder  To edit a network folderUSB Storage Advanced Settings Access Method To create a network folder Create a Network FolderAvailable Network Folders Media Server Settings Safely Remove USB DriveApproved USB Devices Advanced USB Settings Select the Allow only approved devices check boxConnect to the USB Drive with Microsoft Network Settings Select Maintenance Router StatusConnect to the USB Drive from a Remote Computer Enabling File and Printer SharingConfiguring Windows 98SE and Windows ME Configuring Windows 2000 and Windows XPAdvanced Settings WAN Setup Default DMZ Server  To assign a computer or server to be a default DMZ serverDynamic DNS  To set up Dynamic DNSSelect the Use a Dynamic DNS Service check box LAN IP address LAN Setup To change the LAN settings Select Advanced LAN Setup  To reserve an IP address LAN Setup Screen SettingsIP Address Reservation Quality of Service QoS  To set up QoS Select Advanced QoS Setup To edit or delete a reserved address entry Click Edit or DeleteN300 Wireless ADSL2+ Modem Router DGN2200v3  To view or change advanced wireless settings Advanced Wireless SettingsAdvanced Wireless Settings  To set up a wireless card access list WPS SettingsWireless Card Access List Remote Management Static Routes Static Route Example 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 Set Up a Point-to-Point Bridge  To set up a point-to-point bridge configurationSet Up a Multi-Point Bridge  To set up the multi-point bridge configurationRepeater with Wireless Client Association  To set up a repeater with wireless client association Repeater exampleChange the Device Mode  To change the device modeTroubleshooting Power LED Is Red Troubleshooting with the LEDsPower LED Is Off Cannot Log In to the Wireless-N Modem Router LAN LED Is OffTroubleshooting the Internet Connection Adsl LinkAdsl Link LED Is Green Adsl Link LED Is Blinking GreenObtaining an Internet IP Address Troubleshooting PPPoE or PPPoAInternet LED Is Red Test the LAN Path to Your Modem Router Troubleshooting Internet BrowsingTCP/IP Network Not Responding Test the Path from Your Computer to a Remote Device PingChanges Not Saved Incorrect Date or TimeSupplemental Information Factory Settings Factory Default SettingsBest Specifications Specification DescriptionNotification of Compliance 113 FCC Requirements for Operation in the United States FCC Information to UserGPL License Agreement Industry CanadaImportant Note Radiation Exposure Statement Interference Reduction Table Index 118 119 120
Related manuals
Manual 2 pages 44.57 Kb

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.
Top Page Image Contents