IP Options are Dropped in Ubuntu 16.10

I am using Ubuntu 16.10 to run an experiment. I use Python scapy to send two packets to a machine connected over a switch. The first packet is a normal TCP SYN packet and is received by the nc app on the second machine and I can see the corresponding SYN/ACK packet. However, the second packet I send contains an IP option Loose Source Routing . This second packet is received on the other machine (I can see it in wireshark) but not handed to the application, therefore no SYN/ACK is sent. I am wondering why that is the case. Here's the scapy code I am using: Packet 1: pkt1=IP(src="10.0.0.2", dst="10.0.0.3")/TCP(sport=random.randint(54100,54300),dport=23800) send(pkt1) Packet 2: pkt2=IP(src="10.0.0.2", dst="10.0.0.3",options=IPOption('\x83\x03\x10'))/TCP(sport=random.randint(54100,54300),dport=23800) send(pkt2)