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DoIP_ForceLocalTCPSendPort

Valid for: CANoe DE Note The following DoIP CAPL function is only available with the modeling library DoIP.dll and eventually an appropriate implementation of the CAPL Callback Interface. Information about the DoIP DLL and the CAPL Callback Interface you find here:

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Function Syntax

long DoIP_ForceLocalTCPSendPort(dword forcedPort);

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Description

Forces local TCP send port to a specific value. According to ISO13400, the local send port for outgoing TCP connections should be dynamically selected. This function allows forcing the local TCP send port to a specific value, typically to 13400 to indicate DoIP. Note that specifying a well-known or system port (1..1023) might not work on most systems.

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Parameters

  • forcedPort
    • 0: use a dynamically assigned value (default)
    • 1..65535: send from this local TCP port
    • other: reserved

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Return Values

  • 0: success
  • -10: invalid parameter
  • Others: reserved

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Example

On preStart
{
  // Make sure that tester starts TCP connection from the standard port
  DoIP_ForceLocalTCPSendPort(13400);
}