public void scan(string subnet)
{
Ping ping;
PingReply reply;
IPAddress address;
IPHostEntry host;
for (int i = 1; i < 255; i++)
{
string subnetn = "." + i.ToString();
ping = new Ping();
reply = ping.Send(subnet + subnetn);
if (reply.Status == IPStatus.Success)
{
try
{
address = IPAddress.Parse(subnet + subnetn);
host = Dns.GetHostEntry(address);
IPBox.AppendText(subnet + "\t" + subnetn + "\t" + host.HostName.ToString() + "\t" + "UP\n");
}
catch
{
}
}
}
}
public void scan(string subnet)
{
Ping ping;
PingReply reply;
IPAddress address;
IPHostEntry host;
for (int i = 250; i < 255; i++)
{
try
{
string subnetn = "." + i.ToString();
ping = new Ping();
reply = ping.Send(subnet + subnetn);
if (reply.Status == IPStatus.Success)
{
try
{
address = IPAddress.Parse(subnet + subnetn);
host = Dns.GetHostEntry(address);
IPBox.AppendText(subnet + "\t" + subnetn + "\t" + host.HostName.ToString() + "\t" + "UP\n");
}
catch
{
}
}
if (i < 254)
{
label1.Text = "Checking " + SubnetBox.Text + "." + i;
}
else
{
StopButton.Enabled = true;
StartButton.Enabled = false;
SubnetBox.Enabled = false;
SubnetBox.Text = "";
label1.Text = "Finished";
}
}
catch
{
}
}
}
public void scan(string subnet)
{
SolidBrush greenBrush = new SolidBrush(Color.Green);
Pen blackPen = new Pen(Color.Black);
Font myFont = new Font("Arial", 10);
Ping ping;
PingReply reply;
IPAddress address;
IPHostEntry host;
nodes[] myNode = new nodes[254];
MapBox.Visible = false;
MapBox.Visible = true;
int coor = 0;
int j = 0;
int totalNodes = 0;
for (int i = 1; i <= 255; i++)
{
if (i <= 255)
{
label1.Text = "Checking " + SubnetBox.Text + "." + i;
}
else
{
StopButton.Enabled = true;
StartButton.Enabled = false;
SubnetBox.Enabled = false;
SubnetBox.Text = "";
label1.Text = "Finished";
}
string subnetn = "." + i.ToString();
ping = new Ping();
reply = ping.Send(subnet + subnetn, 10);
if (i == 1)
{
drawArea.FillEllipse(greenBrush, 150, 85, 25, 25);
drawArea.DrawString(subnet + "." + i.ToString(), myFont, Brushes.Black, new Point(125, 90));
}
else
{
if (reply.Status == IPStatus.Success)
{
try
{
j += 1;
address = IPAddress.Parse(subnet + subnetn);
host = Dns.GetHostEntry(address);
IPBox.AppendText(subnet + "\t" + subnetn + "\t" + host.HostName.ToString() + "\n");
Form1 form1 = new Form1();
myNode[j].ipAddress = subnet + subnetn;
myNode[j].hostNamse = host.HostName.ToLower();
myNode[j].status = "UP";
drawArea.DrawLine(blackPen, 160, 95, 30 + coor, 60 + coor);
drawArea.FillEllipse(greenBrush, 150, 85, 25, 25);
drawArea.DrawString("192.168.1.1", myFont, Brushes.Black, new Point(125, 90));
drawArea.FillEllipse(greenBrush, 20 + coor, 50 + coor, 25, 25);
drawArea.DrawString(subnet + "." + i.ToString(), myFont, Brushes.Black, new Point(20 + coor, 50 + coor));
coor += 30;
}
catch
{
}
}
}
}
StartButton.Enabled = true;
StopButton.Enabled = false;
SubnetBox.Enabled = true;
AboutApps.Enabled = true;
SubnetBox.Text = "";
label1.Text = "Finished";
myThread.Abort();
}