C#中获取本机IP地址,子网掩码,网关地址

首先添加对程序集System.Management的引用
 1.using System;  
 2.using System.Management;  
 3.  
 4.namespace ConsoleApplication1  
 5.{  
 6.    class Program  
 7.    {  
 8.        static void Main(string[] args)  
 9.        {  
 10.            ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration");  
 11.            ManagementObjectCollection nics = mc.GetInstances();  
 12.            foreach (ManagementObject nic in nics)  
 13.            {  
 14.                if (Convert.ToBoolean(nic["ipEnabled"]) == true)  
 15.                {  
 16.                    Console.WriteLine((nic["IPAddress"] as String[])[0]);  
 17.                    Console.WriteLine((nic["IPSubnet"] as String[])[0]);  
 18.                    Console.WriteLine((nic["DefaultIPGateway"] as String[])[0]);  
 19.                }  
 20.            }  
 21.        }  
 22.    }  
 23.}