كيفية مسح نطاق IP C#

Question

كيفية مسح نطاق معين من IP وكذلك زيادة ذلك إلى النطاق المحدد للمستخدم .. في مثل معظم ماسحات الموانئ. ولكن كيفية زيادة أجزاء المضيف .. يزيد من بت الشبكة ..

private static void sendAsyncPingPacket(string hostToPing)
    {
        try
        {
            int timeout = 5000;
            AutoResetEvent waiter = new AutoResetEvent(false);
            Ping pingPacket = new Ping();
            //ping completion event reaised
            pingPacket.PingCompleted += new PingCompletedEventHandler(PingCompletedCallback);
            string data = "Ping test check";
            byte[] byteBuffer = Encoding.ASCII.GetBytes(data);
            PingOptions pingOptions = new PingOptions(64, true);
            Console.WriteLine("Time to live: {0}", pingOptions.Ttl);
            //Console.WriteLine("Don't fragment: {0}", pingOptions.DontFragment);
            pingPacket.SendAsync(hostToPing, timeout, byteBuffer, pingOptions, waiter);


            //do something useful
            waiter.WaitOne();
            Console.WriteLine("Ping RoundTrip returned, Do something useful here...");
        }
        catch (PingException pe)
        {
            Console.WriteLine("INVALID IP ADDRESS FOUND");
        }
        catch (Exception ex)
        {
            Console.WriteLine("Exceptin " + ex.Message);
        }

    }
    private static void PingCompletedCallback(object sender, PingCompletedEventArgs e)
    {
        try
        {
            if (e.Cancelled)
            {
                Console.WriteLine("Ping canceled.");

                // Let the main thread resume. 
                // UserToken is the AutoResetEvent object that the main thread 
                // is waiting for.
                ((AutoResetEvent)e.UserState).Set();
            }

            // If an error occurred, display the exception to the user.
            if (e.Error != null)
            {
                Console.WriteLine("Ping failed>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ");
                //this will print exception
                //Console.WriteLine (e.Error.ToString ());

                // Let the main thread resume. 
                ((AutoResetEvent)e.UserState).Set();
            }

            PingReply reply = e.Reply;

            DisplayReply(reply);

            // Let the main thread resume.
            ((AutoResetEvent)e.UserState).Set();
        }
        catch (PingException pe)
        {
            Console.WriteLine("INVALID IP ADDRESS");
        }
        catch (Exception ex)
        {
            Console.WriteLine("Exception " + ex.Message);
        }
    }

    public static void DisplayReply (PingReply reply)
    {
        if (reply == null)
            return;

        Console.WriteLine ("ping status: {0}", reply.Status);
        if (reply.Status == IPStatus.Success)
        {
            Console.WriteLine ("Address: {0}", reply.Address.ToString ());
            Console.WriteLine ("RoundTrip time: {0}", reply.RoundtripTime);
            Console.WriteLine ("Time to live: {0}", reply.Options.Ttl);
            //Console.WriteLine ("Don't fragment: {0}", reply.Options.DontFragment);
            Console.WriteLine ("Buffer size: {0}", reply.Buffer.Length);
        }
    }

  private static long ToInt(string addr) 
    {

        return (long)(uint)System.Net.IPAddress.NetworkToHostOrder(
            (int)System.Net.IPAddress.Parse(addr).Address);    
    }

   private static string ToAddr(long address)
    {
        return System.Net.IPAddress.Parse(address.ToString()).ToString();
    }

static int temp = 0;
    private static void scanLiveHosts(string ipFrom, string ipTo)
    {
        long from =  Program.ToInt(ipFrom);
        long to =  Program.ToInt(ipTo);

        long ipLong = Program.ToInt(ipFrom);
        while ( from < to)
        {

            string address = Program.ToAddr(ipLong);
            Program.sendAsyncPingPacket(address);
            ipLong++;
        }

    }
        static void Main(string[] args)
    {
        try
        {
            Program.getDeviceList();
            Program.sendAsyncPingPacket("192.168.3.72");
            Program.scanLiveHosts("192.168.3.1", "192.168.3.41");



        }
        catch (InvalidOperationException ioe)
        {
            Console.WriteLine(ioe.Message);
        }
        catch (Exception ex)
        {
            Console.WriteLine(ex.Message);
        }
    }

Answer 1

الطرق الرئيسية المستخدمة

private static long ToInt(string addr) 
{

    return (long)(uint)System.Net.IPAddress.NetworkToHostOrder(
        (int)System.Net.IPAddress.Parse(addr).Address);    
}



private static string ToAddr(long address)
{
    return System.Net.IPAddress.Parse(address.ToString()).ToString();
}

أعلاه منشور في عمق كيفية إرسال شبكة Ping Packet ومسح الضوئي.

Answer 2

مرحبًا ، لقد وجدت الرمز بواسطة Google ، لقد قمت بإجراء تغييرات ضئيلة لتناسب الكود الخاص بي والتغييرات الأخرى لتناسب الكود الخاص بك ... ربما يجب أن تفكر في التغيير:

while ( from < to)
{

    string address = Program.ToAddr(ipLong);
    Program.sendAsyncPingPacket(address);
    ipLong++;
}

إلى شيء مثل:

while ( ipLong < to)
{

    string address = Program.ToAddr(ipLong);
    Program.sendAsyncPingPacket(address);
    ipLong++;
}

أو "البحث" عن IPS لن يتوقف عند TOADDR (إلى)