Building a TcpPacket from scratch

[trudyhood]

I can not find any sample for creating a TCP packet with options and payload. Whatever I did resulted in the corrupted packet. Is there any sample?

    public static IPPacket SimpleTcp()
    {
        var options = Array.Empty<byte>();
        var payloadData = new byte[20];

        // ICMP echo request
        var buffer = new byte[20 + options.Length + payloadData.Length];
        var tcpPacket = new TcpPacket(new ByteArraySegment(buffer)) {
            SourcePort = 10,
            DestinationPort = 20,
            Options = options,
            DataOffset = 5 + options.Length / 4,
            PayloadData = payloadData
        };
        tcpPacket.UpdateCalculatedValues();

        // IP packet
        var ipPacket = new IPv4Packet(IPAddress.Parse("1.1.1.1"), IPAddress.Parse("1.1.1.2")) {
            Protocol = ProtocolType.Tcp,
            PayloadPacket = tcpPacket
        };
        ipPacket.UpdateCalculatedValues();


        var clonePacket =  Packet.ParsePacket(LinkLayers.Raw, ipPacket.Bytes).Extract<IPPacket>();
        Console.WriteLine(clonePacket);
        // clonePacket is completely corrupted
        return clonePacket;
    }
  }