public static IPAddress[] GetNetFindBroadcastaddr()
{
ArrayList mAddr = new ArrayList();
ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration");
ManagementObjectCollection nics = mc.GetInstances();
foreach (ManagementObject nic in nics)
{
if (Convert.ToBoolean(nic["ipEnabled"]) == true)
{
try {
String ip = (nic["IPAddress"] as String[])[0];
String mask = (nic["IPSubnet"] as String[])[0];
String gate_way = (nic["DefaultIPGateway"] as String[])[0];
String broad_cast = LibCui.GetBroadcast(ip, mask);
#if false
if (LibCui.IpIs_C_Type(ip) && false)
{
// C 类 IP 地址--所有地址
IPAddress addr = IPAddress.Parse(ip);
byte[] addrbyte = addr.GetAddressBytes();
for (int i = 1; i <= 254; i++)
{
addrbyte[addrbyte.Length - 1] = (byte)i;
IPAddress IPOne = new IPAddress(addrbyte);
mAddr.Add(IPOne);
}
}
else
{
//A，B 类 IP地址 --广播地址
mAddr.Add(IPAddress.Parse(broad_cast));
}
#else
mAddr.Add(IPAddress.Parse(broad_cast));
#endif
}catch (Exception e) {
}
}
}
IPAddress[] ip_return = (IPAddress[])mAddr.ToArray(typeof(IPAddress));
return(ip_return);
}
public static IPAddress[] GetUdpBroadcastaddr()
{
ArrayList mAddr = new ArrayList();
ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration");
ManagementObjectCollection nics = mc.GetInstances();
foreach (ManagementObject nic in nics)
{
if (Convert.ToBoolean(nic["ipEnabled"]) == true)
{
try {
String ip = (nic["IPAddress"] as String[])[0];
String mask = (nic["IPSubnet"] as String[])[0];
String gate_way = (nic["DefaultIPGateway"] as String[])[0];
String broad_cast = LibCui.GetBroadcast(ip, mask);
mAddr.Add(IPAddress.Parse(broad_cast));
}catch (Exception e) {
}
}
}
IPAddress[] ip_return = (IPAddress[])mAddr.ToArray(typeof(IPAddress));
return(ip_return);
}