Method for transmitting safety-relevant data in a motor vehicle by means of an Ethernet standard from a transmitter via at least one intermediate node to a receiver, in which - the safety-relevant data are sent from the transmitter in an Ethernet packet, the Ethernet packet having an Ethernet frame with the data content and the data content containing communication information and data, - each intermediate node which receives an Ethernet packet evaluates at least a part of the communication information from the data content which is used in a first or second layer of the OSI layer model in the context of the communication organization and forwards the Ethernet packet in accordance with the evaluated communication information, and - the receiver receives the Ethernet packet, evaluates the communication information from the data content and evaluates the data from the data content if, on the basis of the evaluated communication information, it is the receiver of the safety-relevant data, wherein - in the communication information, used in the first or second layer of the OSI layer model, of the Ethernet frame a data type for safety-relevant data is transmitted with the safety-relevant data, - each intermediate node checks in the received Ethernet packet the communication information used in the first or second layer of the OSI layer model from the data content of the Ethernet frame for the presence of the data type for safety-relevant data, - each intermediate node duplicates an Ethernet frame, which contains the data type for safety-relevant data in the communication information used in the first or second layer of the OSI layer model, at least once, and - each intermediate node sends out the duplicated Ethernet frame in a new Ethernet packet; characterized in that each intermediate node sends out the Ethernet packet with the duplicated Ethernet frame or the several Ethernet packets with in each case the duplicated Ethernet frame in direct sequence after the Ethernet packet received first with the Ethernet frame generated by the transmitter. - the safety-relevant data are sent from the transmitter in an Ethernet packet, the Ethernet packet having an Ethernet frame with the data content and the data content containing communication information and data, - each intermediate node which receives an Ethernet packet evaluates at least a part of the communication information from the data content which is used in a first or second layer of the OSI layer model in the context of the communication organization and forwards the Ethernet packet in accordance with the evaluated communication information, and - the receiver receives the Ethernet packet, evaluates the communication information from the data content and evaluates the data from the data content if, on the basis of the evaluated communication information, it is the receiver of the safety-relevant data, wherein - in the communication information, used in the first or second layer of the OSI layer model, of the Ethernet frame a data type for safety-relevant data is transmitted with the safety-relevant data, - each intermediate node checks in the received Ethernet packet the communication information used in the first or second layer of the OSI layer model from the data content of the Ethernet frame for the presence of the data type for safety-relevant data, - each intermediate node duplicates an Ethernet frame, which contains the data type for safety-relevant data in the communication information used in the first or second layer of the OSI layer model, at least once, and - each intermediate node sends out the duplicated Ethernet frame in a new Ethernet packet; characterized in that each intermediate node sends out the Ethernet packet with the duplicated Ethernet frame or the several Ethernet packets with in each case the duplicated Ethernet frame in direct sequence after the Ethernet packet received first with the Ethernet frame generated by the transmitter.