#Tcp retransmission wireshark code

If (.ControlBits.HasFlag( .Acknowledgment) = true & pcap file!Ĭonsole.WriteLine( ( 'yyyy-MM-dd hh:mm:ss.fff') + ' length:' + packet.Length) This function will get called for every packet in the. Private static void IncommingPacketHandler(Packet packet) Using ( PacketCommunicator communicator = selectedDevice.Open( readWholePacket, PacketDeviceOpenAttributes.Promiscuous, readTimeOut))Ĭommunicator.ReceivePackets(0, IncommingPacketHandler) 65536 guarantees that the whole packet will be captured on all the link layers OfflinePacketDevice selectedDevice = new OfflinePacketDevice(file)

#Tcp retransmission wireshark code

The code below uses the function IncomingPacketHandler to walk every packet in the. The code to get up and running is simple. Then reference them in your project and you're off! This is a great library and you can walk the packets in the file and explore the individual properties of a packet. Now, there are a couple of different approaches you can take here depending on your requirements.Īt first I used PcapDotNet. I wanted to do this programatically, in code.

_alive & ip.addr = 1.2.3.4īut I didn't want to go through the user interface for hundreds of different IP addresses. Just filter the traffic with the following filters: Okay, so this is pretty easy to perform in Wireshark. And finally, I wanted to get a count of the number of 'keep alive' packets for each IP address. I wanted to find out the number of tcp retransmissions for a specified IP address, as well as the count of TCP resets for each IP address. pcap file to obtain a count of the packets found for a large number of IP addresses. The other day, I wanted to perform some Wireshark filtering on a.