NETGEAR DGN2200V3, N300 user manual Set Up Port Triggering,  To enable port triggering

N300 Wireless ADSL2+ Modem Router DGN2200v3

Set Up Port Triggering

Port triggering is a dynamic extension of port forwarding that is useful in these cases:

•More than one local computer needs port forwarding for the same application (but not simultaneously).

•An application needs to open incoming ports that are different from the outgoing port.

When port triggering is enabled, the router monitors outbound traffic looking for a specified outbound “trigger” port. When the router detects outbound traffic on that port, it remembers the IP address of the local computer that sent the data. The router then temporarily opens the specified incoming port or ports, and forwards incoming traffic on the triggered ports to the triggering computer.

While port forwarding creates a static mapping of a port number or range to a single local computer, port triggering can dynamically open ports to any computer that needs them and can close the ports when they are no longer needed.

Note: If you use applications such as multiplayer gaming, peer-to-peer connections, real-time communications such as instant messaging, or remote assistance (a feature in Windows XP), you should also enable Universal Plug and Play (UPnP).

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 user groups or news groups.

To enable port triggering:

1.Select Advanced > Port Forwarding/Port Triggering to display the Port Forwarding/Port Triggering screen.

Security Settings

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