Padding to Ethernet Layer of TCP Packet

[kdun...@gmail.com]

I am building and sending a packet like this

EthernetLayer ethernetLayer = new EthernetLayer
{
Source = SourceMac,
Destination = DestinationMac,
};

// IPv4 Layer
IpV4Layer ipV4Layer = new IpV4Layer
{
Source = SourceIpv4Add,
CurrentDestination = DestinationIpv4Add,
Ttl = 128,
Fragmentation = new IpV4Fragmentation(IpV4FragmentationOptions.DoNotFragment, 0),
Identification = 12,
};

// TCP Layer
TcpLayer tcpLayer = new TcpLayer
{
SourcePort = _sourcePort,
DestinationPort = _destinationPort,
SequenceNumber = _seqNumber,
ControlBits = TcpControlBits.Synchronize,

Window = _windowSize,
};

PayloadLayer payloadlayer = new PayloadLayer
{
Data = new Datagram(Encoding.ASCII.GetBytes("Hello Donnie"))
};

Packet syn = PacketBuilder.Build(DateTime.Now, ethernetLayer, ipV4Layer, tcpLayer, payloadlayer);

communicator.SendPacket(syn);

This packet has a total length of 58 bytes but I need to add 2 bytes of padding to the Ethernet layer so that the packet length is 60 bytes. How would I accomplish this in Pcap.net

[Boaz Brickner]

The padding is added implicitly when you send the packet over the wire.

Let me know if something doesn't work as expected.