SharpPcap：OnPacketArrival 事件未触发

Question

订阅

OnPacketArrival

活动不起作用。知道我做错了什么吗？

using System;
using PacketDotNet;
using SharpPcap;

Console.WriteLine("Starting packet capture...");

var devices = CaptureDeviceList.Instance;

if (devices.Count == 0)
{
    Console.WriteLine("No network devices found.");
    return;
}

var device = devices[0];
Console.WriteLine(device.ToString());

try
{
    device.Open();

    device.OnPacketArrival += (sender, e) =>
    {
        try
        {
            var packet = Packet.ParsePacket(e.GetPacket().LinkLayerType, e.GetPacket().Data);

            if (packet is EthernetPacket ethernetPacket)
            {
                if (ethernetPacket.PayloadPacket is IPPacket ipPacket)
                {
                    if (ipPacket.DestinationAddress.ToString() == "54.220.192.176" &&
                        ipPacket.PayloadPacket is TcpPacket tcpPacket &&
                        tcpPacket.DestinationPort == 443) // HTTPS port
                    {
                        var sourceIp = ipPacket.SourceAddress;
                        var destinationIp = ipPacket.DestinationAddress;
                        var sourcePort = tcpPacket.SourcePort;
                        var destinationPort = tcpPacket.DestinationPort;

                        Console.WriteLine($"HTTPS Packet: Source IP: {sourceIp}, Source Port: {sourcePort}, Destination IP: {destinationIp}, Destination Port: {destinationPort}");
                    }
                }
            }
        }
        catch (Exception ex)
        {
            Console.WriteLine($"Error processing packet: {ex.Message}");
        }
    };

    device.StartCapture();

    Console.WriteLine("Capturing packets. Press ENTER to stop.");
    Console.ReadLine();

    device.StopCapture();
}
catch (Exception ex)
{
    Console.WriteLine($"Error capturing traffic: {ex.Message}");
}
finally
{
    device.Close();
}

Answer 1

您可以检查您正在监听的设备是绑定到您的外部 IP 地址的设备还是该设备 0 是否有任何地址。 为此目的有“

Addresses

”列表属性。