> ## Documentation Index
> Fetch the complete documentation index at: https://notevil.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# CAPLfunctionDoIPTCPDataInd

# \_DoIP\_TCPDataInd

[Valid for](../../../Shared/FeatureAvailability.md): 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:

* [DoIP CAPL Introduction](../CAPLDiagnosticDoIP.md)
* [AN-IND-1-012\_CAPL\_Callback\_Interface.pdf](javascript:startDemoLoader\('AN-IND-1-012_CAPL_Callback_Interface.pdf'\))
* [AN-IND-1-026\_DoIP\_in\_CANoe.pdf](javascript:startDemoLoader\('AN-IND-1-026_DoIP_in_CANoe.pdf'\))

## Function Syntax

```plaintext theme={null}
void _DoIP_TCPDataInd( BYTE DoIPVersion, WORD payloadType, BYTE payload[]);
```

## Description

A DoIP PDU was received from the connected peer that cannot be interpreted by this implementation.

## Parameters

* **DoIPVersion**: Protocol version as sent in the header.
* **payloadType**: Value from the header.
* **payload**: The payload.

## Return Values

—

## Example

```plaintext theme={null}
void _DoIP_TCPDataInd( BYTE DoIPVersion, WORD payloadType, BYTE payload[])
{
  write( "_DoIP_TCPDataInd( version=%d, type %04x, [%d]<%02x...>)"
  , DoIPVersion, payloadType
  , elcount( payload), elcount(payload) > 0 ? payload[0] : 0);
}
```

[DoIP\_TCPSend](CAPLfunctionDoIPTCPSend.md)