diff --git a/bindings/python/icsneopy/communication/message/ethernetmessage.cpp b/bindings/python/icsneopy/communication/message/ethernetmessage.cpp
index 87a9cc6..5904309 100644
--- a/bindings/python/icsneopy/communication/message/ethernetmessage.cpp
+++ b/bindings/python/icsneopy/communication/message/ethernetmessage.cpp
@@ -15,7 +15,7 @@ void init_ethernetmessage(pybind11::module_& m) {
 		.def(pybind11::init())
 		.def_readwrite("preemptionEnabled", &EthernetMessage::preemptionEnabled)
 		.def_readwrite("preemptionFlags", &EthernetMessage::preemptionFlags)
-		.def_readwrite("fcsAvailable", &EthernetMessage::fcsAvailable)
+		.def_readwrite("fcs", &EthernetMessage::fcs)
 		.def_readwrite("frameTooShort", &EthernetMessage::frameTooShort)
 		.def_readwrite("noPadding", &EthernetMessage::noPadding)
 		.def("get_destination_mac", &EthernetMessage::getDestinationMAC, pybind11::return_value_policy::reference)
diff --git a/communication/message/neomessage.cpp b/communication/message/neomessage.cpp
index acaab67..bbab488 100644
--- a/communication/message/neomessage.cpp
+++ b/communication/message/neomessage.cpp
@@ -51,7 +51,7 @@ neomessage_t icsneo::CreateNeoMessage(const std::shared_ptr<Message> message) {
 				eth.status.incompleteFrame = ethmsg->frameTooShort;
 				// TODO Fill in extra status bits
 				//eth.status.xyz = ethmsg->preemptionEnabled;
-				//eth.status.xyz = ethmsg->fcsAvailable;
+				//eth.status.xyz = ethmsg->fcs;
 				//eth.status.xyz = ethmsg->noPadding;
 				break;
 			}
diff --git a/communication/packet/ethernetpacket.cpp b/communication/packet/ethernetpacket.cpp
index e3dd59f..e4209c1 100644
--- a/communication/packet/ethernetpacket.cpp
+++ b/communication/packet/ethernetpacket.cpp
@@ -16,8 +16,8 @@ std::shared_ptr<EthernetMessage> HardwareEthernetPacket::DecodeToMessage(const s
 	if(packet->Length < 4)
 		return nullptr;
 	
-	const size_t ethernetFrameSize = packet->Length - (sizeof(uint16_t) * 2);
-	const size_t bytestreamExpectedSize = sizeof(HardwareEthernetPacket) + ethernetFrameSize;
+	const size_t fcsSize = packet->header.FCS_AVAIL ? 4 : 0;
+	const size_t bytestreamExpectedSize = sizeof(HardwareEthernetPacket) + packet->Length;
 	const size_t bytestreamActualSize = bytestream.size();
 	if(bytestreamActualSize < bytestreamExpectedSize)
 		return nullptr;
@@ -36,8 +36,6 @@ std::shared_ptr<EthernetMessage> HardwareEthernetPacket::DecodeToMessage(const s
 	message.preemptionEnabled = packet->header.PREEMPTION_ENABLED;
 	if(message.preemptionEnabled)
 		message.preemptionFlags = (uint8_t)((rawWords[0] & 0x03F8) >> 4);
-	
-	message.fcsAvailable = packet->header.FCS_AVAIL;
 
 	message.frameTooShort = packet->header.RUNT_FRAME;
 	if(message.frameTooShort)
@@ -47,11 +45,14 @@ std::shared_ptr<EthernetMessage> HardwareEthernetPacket::DecodeToMessage(const s
 	// Decoder will fix as it has information about the timestampResolution increments
 	message.timestamp = packet->timestamp.TS;
 
-	// Network ID is also not set, this will be fixed in the Decoder as well
-
-	const std::vector<uint8_t>::const_iterator databegin = bytestream.begin() + (sizeof(HardwareEthernetPacket) - (sizeof(uint16_t) * 2));
-	const std::vector<uint8_t>::const_iterator dataend = databegin + ethernetFrameSize;
+	const std::vector<uint8_t>::const_iterator databegin = bytestream.begin() + sizeof(HardwareEthernetPacket);
+	const std::vector<uint8_t>::const_iterator dataend = databegin + packet->Length - fcsSize;
 	message.data.insert(message.data.begin(), databegin, dataend);
+	
+	if(fcsSize) {
+		uint32_t& fcs = message.fcs.emplace();
+		std::copy(dataend, dataend + fcsSize, (uint8_t*)&fcs);
+	}
 
 	return messagePtr;
 }
diff --git a/include/icsneo/communication/message/ethernetmessage.h b/include/icsneo/communication/message/ethernetmessage.h
index 3c54975..d71d2d4 100644
--- a/include/icsneo/communication/message/ethernetmessage.h
+++ b/include/icsneo/communication/message/ethernetmessage.h
@@ -35,7 +35,7 @@ class EthernetMessage : public Frame {
 public:
 	bool preemptionEnabled = false;
 	uint8_t preemptionFlags = 0;
-	bool fcsAvailable = false;
+	std::optional<uint32_t> fcs;
 	bool frameTooShort = false;
 	bool noPadding = false;
 
diff --git a/include/icsneo/communication/packet/ethernetpacket.h b/include/icsneo/communication/packet/ethernetpacket.h
index 3696fa0..dbe338d 100644
--- a/include/icsneo/communication/packet/ethernetpacket.h
+++ b/include/icsneo/communication/packet/ethernetpacket.h
@@ -10,6 +10,8 @@
 
 namespace icsneo {
 
+#pragma pack(push, 2)
+
 typedef uint16_t icscm_bitfield;
 
 struct HardwareEthernetPacket {
@@ -42,6 +44,8 @@ struct HardwareEthernetPacket {
 	uint16_t Length;
 };
 
+#pragma pack(pop)
+
 }
 
 #endif // __cplusplus