public void UpdatePrefix()
{
try
{
SubnetMask subnetMask = new SubnetMask((int)numPrefix.Value);
ipAddress.SubnetMask = subnetMask;
cmbSubnetMask.Text = subnetMask.ToString();
UpdatePropertiesPanel();
numSubnetBits.Maximum = 30 - numPrefix.Value;
numNumberOfSubnets.Maximum = (decimal)Math.Pow(2, 30 - (double)numPrefix.Value);
numHostPerSubnet.Maximum = (decimal)Math.Pow(2, 32 - (double)numPrefix.Value) - 2;
UpdateSubnetBit();
UpdateSubnetBitmap();
picSubnetMask.Image = Resources.icon_ok_20;
}
catch { }
}
public void UpdateClass()
{
switch (cmbClass.SelectedIndex)
{
case 0:
ipAddress = isSelectClass ? new IPv4Address(IPv4Class.A) : new IPv4Address(txtIPv4Address.Text);
numPrefix.Minimum = 8;
break;
case 1:
ipAddress = isSelectClass ? new IPv4Address(IPv4Class.B) : new IPv4Address(txtIPv4Address.Text);
numPrefix.Minimum = 16;
break;
case 2:
ipAddress = isSelectClass ? new IPv4Address(IPv4Class.C) : new IPv4Address(txtIPv4Address.Text);
numPrefix.Minimum = 24;
break;
default:
break;
}
numPrefix.Value = ipAddress.SubnetMask.Prefix;
txtIPv4Address.Text = ipAddress.Address;
UpdatePropertiesPanel();
UpdateSubnetBitmap();
//Update Subnetmask combobox items
cmbSubnetMask.Items.Clear();
SubnetMask temp = new SubnetMask();
for (int i = SubnetMask.ToPrefix(ipAddress.Class); i < 31; i++)
{
temp.Prefix = i;
cmbSubnetMask.Items.Add(temp.ToString());
}
}