D-Link DIR-685 Xtreme N User Manual page 75

Secton  - Configuraton
Dir:
The direction of initiation of the conversation:
. Out - Initiated from LAN to WAN.
. In - Initiated from WAN to LAN.
Priority: The preference given to outbound packets of this conversation by the QoS Engine logic. Smaller numbers represent higher
priority.
Time Out:
The number of seconds of idle time until the router considers the session terminated. The initial value of Time Out depends
on the type and state of the connection.
300.seconds - UDP connections.
240.seconds - Reset or closed TCP connections. The connection does not close instantly so that lingering packets
can pass or the connection can be re-established.
7800.seconds - Established or closing TCP connections.
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