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POSharpPCap Keeps Printing Out "Is an IP Packet"
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copied!<p>All of the sudden, i have no clue what i did, my application started printing out: "Is an IP packet".</p> <p>Has this ever happened to anyone else? Here is the code for my OnPacketArrival event:</p> <pre><code> #region " Global Variables " public static bool fTCP = true; public static bool fIP = true; public static bool fICMP4 = false; public static bool fICMP6 = false; public static bool fIGMP = false; public static bool fPPPoE = false; public static bool fWOL = false; public static bool fUDP = false; public static bool fARP = false; public static bool fLLDP = false; static public string f = ""; static public int intro = 0; static public bool log = false; static public string logFileLocation = Environment.CurrentDirectory + "\\packetLog.log"; #endregion private static void device_OnPacketArrival(object sender, CaptureEventArgs e) { try { var raw_tcp = Packet.ParsePacket(e.Packet.LinkLayerType, e.Packet.Data); var tcp = TcpPacket.GetEncapsulated(raw_tcp); var raw_ip = Packet.ParsePacket(e.Packet.LinkLayerType, e.Packet.Data); var ip = IpPacket.GetEncapsulated(raw_ip); var raw_udp = Packet.ParsePacket(e.Packet.LinkLayerType, e.Packet.Data); var udp = UdpPacket.GetEncapsulated(raw_udp); var raw_icmpv4 = Packet.ParsePacket(e.Packet.LinkLayerType, e.Packet.Data); var icmpv4 = ICMPv4Packet.GetEncapsulated(raw_icmpv4); var raw_icmpv6 = Packet.ParsePacket(e.Packet.LinkLayerType, e.Packet.Data); var icmpv6 = ICMPv6Packet.GetEncapsulated(raw_icmpv6); var raw_pppoe = Packet.ParsePacket(e.Packet.LinkLayerType, e.Packet.Data); var pppoe = PPPoEPacket.GetEncapsulated(raw_pppoe); var raw_lldp = Packet.ParsePacket(e.Packet.LinkLayerType, e.Packet.Data); var lldp = LLDPPacket.GetEncapsulated(raw_lldp); var raw_wolp = Packet.ParsePacket(e.Packet.LinkLayerType, e.Packet.Data); var wolp = WakeOnLanPacket.GetEncapsulated(raw_wolp); var raw_igmp = Packet.ParsePacket(e.Packet.LinkLayerType, e.Packet.Data); var igmp = IGMPv2Packet.GetEncapsulated(raw_igmp); var raw_arp = Packet.ParsePacket(e.Packet.LinkLayerType, e.Packet.Data); var arp = ARPPacket.GetEncapsulated(raw_arp); if (udp != null) { string hour_tcp = e.Packet.Timeval.Date.Hour.ToString(); string min_tcp = e.Packet.Timeval.Date.Minute.ToString(); string sec_tcp = e.Packet.Timeval.Date.Second.ToString(); string msec_tcp = e.Packet.Timeval.Date.Millisecond.ToString(); int len_tcp = e.Packet.Data.Length; Console.WriteLine("hr{0}:{1}:{2}:{3} Length={4} p={5} -> {6} Type={7}", hour_tcp, min_tcp, sec_tcp, msec_tcp, len_tcp, udp.SourcePort, udp.DestinationPort, "UDP/Packet"); } else { string hour = e.Packet.Timeval.Date.Hour.ToString(); string min = e.Packet.Timeval.Date.Minute.ToString(); string sec = e.Packet.Timeval.Date.Second.ToString(); string msec = e.Packet.Timeval.Date.Millisecond.ToString(); int len = e.Packet.Data.Length; Console.WriteLine("hr{0}:{1}:{2}:{3} Length={4}", hour, min, sec, msec, len); } } catch (Exception ex) { Console.WriteLine("The following error occured. Please let me know, ASAP!" + Environment.NewLine + ex.Message); Console.ReadLine(); } } static void Main() { try { CaptureDeviceList devices = CaptureDeviceList.Instance; if (devices.Count < 1) { Console.WriteLine(); Console.WriteLine(); Console.WriteLine(); Console.WriteLine("No devices were found on this machine! :O"); System.Threading.Thread.Sleep(3750); return; } Console.Clear(); Console.WriteLine("----------------------------------------------------"); Console.WriteLine("The following devices are available on this machine:"); Console.WriteLine("----------------------------------------------------"); Console.WriteLine(); // Print out the available network devices int i = 0; foreach (ICaptureDevice dev in devices) { Console.WriteLine(); Console.WriteLine(" - {0}) {1}\n", i, dev.ToString()); i++; } Console.WriteLine(); Console.Write("Please select a device to monitor . . . "); i = int.Parse(Console.ReadLine()); // Extract a device from the list ICaptureDevice device = devices[i]; device.OnPacketArrival += new SharpPcap.PacketArrivalEventHandler(device_OnPacketArrival); Console.WriteLine(); Console.WriteLine(); Console.WriteLine(); Console.WriteLine("Initializing . . . "); System.Threading.Thread.Sleep(3750); Console.WriteLine(); Console.WriteLine(); Console.WriteLine(); Console.WriteLine("Would you like to set a filter for the packets that are displayed?"); Console.WriteLine(); Console.Write("Yes or No . . . "); string yn1 = Console.ReadLine(); if (yn1.ToLower() == "yes") { Console.WriteLine(); Console.WriteLine(); Console.WriteLine(); Console.WriteLine("Select the filter you would like applied:"); Console.WriteLine(); Console.WriteLine(); Console.WriteLine(" -- 1. TCP"); Console.WriteLine(" -- 2. UDP"); Console.WriteLine(" -- 3. IP"); Console.WriteLine(" -- 4. TCP & IP"); Console.WriteLine(" -- 5. TCP & UDP"); Console.WriteLine(" -- 6. IP & UDP"); Console.WriteLine(); Console.WriteLine(); Console.Write("Enter the corresponding number for the filter you wish to activate . . . "); string p = Console.ReadLine(); if (p == "1") { f = "tcp"; } else if (p == "2") { f = "udp"; } else if (p == "3") { f = "ip"; } else if (p == "4") { f = "tcp and ip"; } else if (p == "5") { f = "tcp and udp"; } else if (p == "6") { f = "ip and udp"; } } Console.WriteLine(); Console.WriteLine(); Console.WriteLine(); Console.WriteLine("Would you like to set the capture mode? (If no, default is to" + Environment.NewLine + "capture all traffic.)"); Console.WriteLine(); Console.Write("Please input Yes or No . . . "); string ynsetcap = Console.ReadLine(); string devmode = ""; int readTimeoutMilliseconds = 1000; if (ynsetcap == "yes") { Console.WriteLine(); Console.WriteLine(); Console.WriteLine(); Console.WriteLine(" --- 1. Device Mode Promiscuous [a]"); Console.WriteLine(" --- 2. Device Mode Normal [b]"); Console.WriteLine(); Console.WriteLine(); Console.WriteLine("Press the corresponding number to set it or the letter for more info."); Console.Write("Waiting for input . . . "); devmode = Console.ReadLine(); } else if (ynsetcap == "no") { device.Open(DeviceMode.Promiscuous, readTimeoutMilliseconds); goto s; } if (devmode == "1") { device.Open(DeviceMode.Promiscuous, readTimeoutMilliseconds); } else if (devmode == "2") { device.Open(DeviceMode.Normal, readTimeoutMilliseconds); } else if (devmode.ToLower() == "a") { Console.WriteLine(); Console.WriteLine(); Console.WriteLine(); Console.WriteLine("The promiscuous Device Mode displays all network traffic. Even traffic" + Environment.NewLine + "that is not intended for the device that is currently being monitored." + Environment.NewLine + "Would you like to set the device to this mode?"); Console.Write("Please input Yes or No . . . "); string ynsetprom = Console.ReadLine(); if (ynsetprom.ToLower() == "yes") { Console.WriteLine(); Console.WriteLine(); Console.WriteLine(); Console.WriteLine("Device Mode set to promiscuous!"); device.Open(DeviceMode.Promiscuous, readTimeoutMilliseconds); System.Threading.Thread.Sleep(3750); } else if (ynsetprom.ToLower() == "no") { Console.WriteLine(); Console.WriteLine(); Console.WriteLine(); Console.WriteLine("Device Mode set to Normal!"); device.Open(DeviceMode.Normal, readTimeoutMilliseconds); System.Threading.Thread.Sleep(3750); } } else if (devmode.ToLower() == "b") { Console.WriteLine(); Console.WriteLine(); Console.WriteLine(); Console.WriteLine("The normal Device Mode displays only network traffic intended" + Environment.NewLine + "for the current device." + Environment.NewLine + Environment.NewLine + "Would you like to set the mode to Normal?"); Console.Write("Please input Yes or No . . . "); string ynsetnorm = Console.ReadLine(); if (ynsetnorm.ToLower() == "yes") { Console.WriteLine(); Console.WriteLine(); Console.WriteLine(); Console.WriteLine("Device Mode set to Normal!"); device.Open(DeviceMode.Normal, readTimeoutMilliseconds); System.Threading.Thread.Sleep(3750); } else if (ynsetnorm.ToLower() == "no") { Console.WriteLine(); Console.WriteLine(); Console.WriteLine(); Console.WriteLine("Device Mode set to Promiscuous!"); device.Open(DeviceMode.Promiscuous, readTimeoutMilliseconds); System.Threading.Thread.Sleep(3750); } } s: Console.WriteLine(); Console.WriteLine(); Console.WriteLine(); Console.WriteLine(" --- Listening on {0}, press the 'Enter'" + Environment.NewLine + "key to stop...", device.Description); if (f.Length > 0) { try { device.Filter = f; } catch (Exception ex) { Console.WriteLine(); Console.WriteLine(); Console.WriteLine(); Console.ForegroundColor = ConsoleColor.Red; Console.WriteLine("The following error occured: " + ex.Message); Console.ForegroundColor = ConsoleColor.White; System.Threading.Thread.Sleep(7500); } } // Start the capturing process device.StartCapture(); // Wait for 'Enter' from the user. Console.ReadLine(); // Stop the capturing process device.StopCapture(); // Close the pcap device device.Close(); Console.WriteLine(); Console.WriteLine(); Console.WriteLine(); Console.WriteLine("Capture has stoped and the device stream has been closed." + Environment.NewLine + Environment.NewLine + "Press any key to exit . . ."); Console.ReadLine(); } catch (Exception ex) { Console.WriteLine(); Console.WriteLine(); Console.WriteLine(); Console.ForegroundColor = ConsoleColor.Red; Console.WriteLine("The following error occured. Please inform me, ASAP!" + Environment.NewLine + ex.Message); Console.ReadLine(); } } </code></pre> <p>Here is the output: <a href="http://dl.dropbox.com/u/40671650/wtf.png" rel="nofollow">http://dl.dropbox.com/u/40671650/wtf.png</a></p> <p>Any help on why it is doing this would be appreciated.</p>

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