NETGEAR D6300 user manual Port Forwarding to Permit External Host Communications

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D6300 WiFi DSL Modem Router

7.Upon receiving the incoming message to destination port 113, your WiFi modem router checks its session table and learns that there is an active session for port 113 associated with your computer. The WiFi modem 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 WiFi modem router eventually senses a period of inactivity in the communications. The WiFi modem router then removes the session information from its session table, and incoming traffic is no longer accepted on port numbers 33333 or 113.

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 triggers the opening of the inbound ports. You can usually determine this information by contacting the publisher of the application or user groups or newsgroups.

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 WiFi modem 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 WiFi modem 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 WiFi modem 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 WiFi modem 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 WiFi modem router.

2.Your WiFi modem 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.

Advanced Settings

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Contents D6300 WiFi DSL Modem Router Trademarks SupportContents USB Printer Control Administration Appendix a Supplemental Information Hardware Setup Product Specifications Unpack Your New Router Hardware Features D6300 WiFi DSL Modem Router Unpack Your New Router Box contents Hardware SetupLabel Hardware FeaturesAC power USB port Gigabit Ethernet Power Adsl line LAN portsWAN port Reset button Back PanelFront Panel Power DSL Internet Wireless USBD6300 WiFi DSL Modem Router Power On/Off LED D6300 WiFi DSL Modem Router Wireless LED Side Panel Wireless On/Off button WPS On/Off button USB portAdsl Microfilters Position Your Wireless RouterTwo-Line Adsl Microfilter Included One-Line Adsl Microfilter Not IncludedCable Your D6300 WiFi DSL Modem Router Adsl or Cable Fiber Modem Browser Computer PowerSummary Verify the Cabling Get Started with Netgear genie Types of Logins and Access Prepare to Set Up the WiFi DSL Modem RouterWireless Devices and Security Settings Use Standard TCP/IP Properties for Dhcp To use Netgear genie to set up your WiFi modem router Netgear genie SetupBrowse to http//routerlogin.net  If the WiFi modem router does not connect to the InternetUpgrade WiFi DSL Modem Router Firmware Use Netgear genie after InstallationWiFi DSL Modem Router Dashboard Basic Home Screen Wi-Fi Protected Setup WPS Method Add Wireless Devices or Computers to Your Network To use WPS to join the wireless network Manual MethodD6300 WiFi DSL Modem Router Netgear genie Basic Settings Internet Basic Settings Internet Basic Settings Screen FieldsDoes Your ISP Require a Login? Answer either yes or no Internet IP Address Attached Devices Parental Controls ReadySHARE USB Storage and Printer USB Storage Basic SettingsReadySHARE Cloud  To set up ReadySHARE CloudClick Register ReadySHARE Printer To view or change basic wireless settings Basic Wireless SettingsWireless Network Wireless Settings Screen FieldsChange WPA Security Option and Passphrase Security Options SettingsGuest Networks  To set up a guest networkGuest Network Wireless Security Options Netgear genie App Netgear genie Mobile App  To install the genie mobile appNetgear genie Advanced Home Setup Wizard D6300 WiFi DSL Modem Router WPS Wizard  To use the WPS WizardSelect either Push Button or PIN Number Setup Menu Adsl Setup WAN Setup Default DMZ Server  To set up a default DMZ serverChange the MTU Size Common MTU sizes LAN Setup  To change the MTU size Select Advanced Setup WAN Setup To change the LAN settings Use the WiFi DSL Modem Router as a Dhcp Server LAN Setup Screen SettingsLAN TCP/IP Setup Use Router as a Dhcp Server To reserve an IP address Address ReservationEnable WMM QoS for Wireless Multimedia Applications Quality of Service SetupSet Up QoS for Internet Access QoS for Applications and Online Gaming To create a QoS policy for applications and online games D6300 WiFi DSL Modem Router QoS for a MAC Address QoS for a WiFi DSL Modem Router LAN PortClick the Add Priority Rule button Click Add Priority Rule To edit or delete a QoS policy Edit or Delete an Existing QoS PolicyUSB Storage USB Drive Requirements ReadySHARE AccessShare Photos File-Sharing ScenariosStore Files in a Central Location for Printing  To share files with your friends and familyShare Large Files over the Internet USB Storage Basic Settings To access your USB device Add or Edit a Network Folder USB Storage Advanced Settings Available Network Folders Safely Remove a USB DriveMedia Server Settings Specify Approved USB Devices Select the Allow only approved devices check box Connect to the USB Drive from a Remote ComputerUSB Printer Control USB Printer Control USB Printer Control Center ConfigurationScan with a Multifunction Printer Security Keyword Blocking of Http Traffic  To delete a keyword or domain To specify a trusted computer  To create firewall rules Firewall RulesD6300 WiFi DSL Modem Router Add Custom Services to Allow or Block TCP UDP TCP/UDP  To add a custom service To specify the firewall rule schedule Schedule for Firewall RulesSecurity Event Email Notifications  To set up email notificationsAdministration Upgrade the WiFi DSL Modem Router Firmware View WiFi DSL Modem Router Status Router InformationInternet Port System up time and poll interval statistics Show Statistics ButtonConnection Status Button Wireless Settings 2.4 GHz and 5 GHzGuest Network 2.4 GHz and 5 GHz View Logs of Web Access or Attempted Web AccessManage the Configuration File Back Up Settings Restore Configuration SettingsErase Password Recovery Set PasswordDiagnostics D6300 WiFi DSL Modem Router Fine -tuning your network Advanced SettingsAdvanced Wireless Settings D6300 WiFi DSL Modem Router D6300 WiFi DSL Modem Router Wireless repeating scenario Wireless Repeating Function WDSWireless Repeating Function Set Up the Base Station Set Up a Repeater Unit To set up the base station Remote Computer Access Basics  To configure the WiFi modem router as a repeater unitPort Forwarding and Triggering Destination port number 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 Servers To set up port forwarding Edit or Delete a Port Forwarding Entry Add a Custom ServiceClick Edit Service or Delete Service Set Up Port TriggeringApplication Example Making a Local Web Server Public  To make a local web server public110 Dynamic DNS  To set up Dynamic DNS Select the Use a Dynamic DNS Service check boxStatic Routes 113 114 Remote Management  To turn on Universal Plug and Play Universal Plug and Play117  To set up an IPv6 Internet connection type IPv6Traffic Meter USB Settings Troubleshooting Network Settings Wireless SettingsQuick Tips Sequence to Restart Your NetworkPower LED Stays Red Power LED Is Off or BlinkingTroubleshoot with the LEDs LEDs Never Turn OffWireless LEDs Are Off Internet or Ethernet Port LEDs Are OffPush N Connect WPS Button Blinks Green Cannot Access the Internet Cannot Log In to the Router To check the WAN IP address Select Administration Router Status Troubleshoot PPPoE Troubleshoot Internet Browsing To troubleshoot a PPPoE connection Wireless Connectivity Changes Not SavedIncorrect Date or Time Troubleshoot Your Network Using the Ping Utility Restore the Factory Settings and PasswordWireless Signal Strength Test the LAN Path to Your RouterTest the Path from Your Computer to a Remote Device 130 Supplemental Information Factory Settings132 D6300 Router specifications Technical SpecificationsRegulatory Compliance Information Netgear Dual Band WirelessEurope EU Declaration of Conformity FCC Requirements for Operation in the United StatesFCC Caution Industry CanadaImportant Note Radiation Exposure Statement Interference Reduction Table AvertissementIndex 138 139 140
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