IPアドレスを取得する

using System;
using System.Collections.Generic;
using System.Text;
using System.Net;
using System.Net.NetworkInformation;

namespace ConsoleIpAddress
{
  class Program
  {
    static void Main(string[] args)
    {
      if (!NetworkInterface.GetIsNetworkAvailable())
      {
        return;
      }

      NetworkInterface[] adapters = NetworkInterface.GetAllNetworkInterfaces();
      foreach (NetworkInterface adapter in adapters)
      {
        if (adapter.OperationalStatus.Equals(OperationalStatus.Up))
        {
          IPInterfaceProperties properties = adapter.GetIPProperties();
          foreach (IPAddressInformation ipInfo in properties.UnicastAddresses)
          {
            IPAddress ip = ipInfo.Address;
            if (!IPAddress.IsLoopback(ip))
            {
              Console.WriteLine("IP = " + ip);
              Console.WriteLine("MAC = " + adapter.GetPhysicalAddress());
            }
          }
        }
      }
    }
  }
}