DoIP payload
Payload Type
Payload length
empty
0x0007
0x00000000
Alive check response
0x0008
0x00000002
Alive check request
Source Address (2 bytes)
Diagnostic power mode information request
Source Address: Contains the logical address of the external test equipment that is currently active on this TCP_DATA socket.
Diagnostic power mode information response
empty
0x4003
0x00000000
0x4004
0x00000001
Diagnostic power mode (1 byte)
Diagnostic power mode: Identifies whether or not the vehicle is in diagnostic power mode and ready to perform reliable diagnostics 0x00: not ready 0x01: ready 0x02: not supported 0x03…0xFF: reserved by this part of ISO 13400
DoIP entity status request
DoIP entity status response
empty
0x4001
0x00000000
0x4002
0x00000001
Node type (1 byte)
Max. concurrent TCP_DATA sockets (1 byte)
Currently open TCP_DATA sockets (1 byte)
Max. data size (1 byte)
Node type (NT)
Identifies whether the contacted DoIP instance is either a DoIP node or a DoIP gateway
0x00: DoIP gateway 0x01: DoIP node 0x02…0xFF: reserved by this part of ISO 13400
Max. concurrent TCP_DATA sockets (MCTS)
Represents the maximum number of concurrent TCP_DATA sockets allowed with this DoIP entity, excluding the reserve socket required for socket handling.
1…255
Currently open TCP_DATA sockets (NCTS)
Number of currently established sockets
0…255
Max. data size (MDS)
Maximum size of one logical request that this DoIP entity can process
0…4 GB