EnGenius X-TRA ESR600H, Manual, Page: 128 / 186

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6.7.4 Port Triggering Setup
Some applications, such as online games, videoconferencing and VoIP telephony, require multiple ports for inbound and out-
bound traffic. If an application requires both an incoming and an outgoing port simultaneously, it is possible to configure static
port forwarding to handle the packets. That is not an optimal solution because a static IP address must be configured for each
device. With port triggering an application, local port or range of ports and a communication protocol can be mapped to a spe-
cific public port. Sending packets out over the local port triggers the router to open an incoming local port that is mapped to
the same public port and application as the outgoing local port(s). The local application can communicate over the incoming
and outgoing ports without the need for creating a fixed address.