Cómo escanear un rango IP C#
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22-09-2019 - |
Pregunta
Cómo escanear un rango específico de IP y también incrementarla al rango definido por el usuario. En la mayoría de los escáneres de puertos. pero cómo aumentar los bits de host ... aumenta los bits de red.
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);
}
}
Solución
Los métodos principales utilizados son
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();
}
La publicación anterior está en profundidad cómo enviar el paquete de ping y la red de escaneo.
Otros consejos
Oye, encontré el código de Google, he hecho pocos cambios para adaptarse a mi código y otros cambios para adaptarse a su código ... tal vez debería pensar en el cambio:
while ( from < to)
{
string address = Program.ToAddr(ipLong);
Program.sendAsyncPingPacket(address);
ipLong++;
}
A algo como:
while ( ipLong < to)
{
string address = Program.ToAddr(ipLong);
Program.sendAsyncPingPacket(address);
ipLong++;
}
o la "búsqueda" de IPS no se detendrá en Toaddr (a)
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