package com.javatutor.insel.net; 
 
import java.net.*; 
import java.util.*; 
 
public class LocalIpAddress 
{ 
  public static void main( String[] args ) throws SocketException 
  { 
    Enumeration<NetworkInterface> netInter = NetworkInterface.getNetworkInterfaces(); 
    int n = 0; 
 
    while ( netInter.hasMoreElements() ) 
    { 
      NetworkInterface ni = netInter.nextElement(); 
 
      System.out.println( "NetworkInterface " + n++ + ": " + ni.getDisplayName() ); 
      for ( InetAddress iaddress : Collections.list(ni.getInetAddresses()) ) 
      { 
        System.out.println( "CanonicalHostName: " + 
                             iaddress.getCanonicalHostName() ); 
 
        System.out.println( "IP: " + iaddress.getHostAddress() ); 
 
        System.out.println( "Loopback? " + iaddress.isLoopbackAddress() ); 
        System.out.println( "SiteLocal? " + iaddress.isSiteLocalAddress() ); 
        System.out.println(); 
      } 
    } 
  } 
}

NetworkInterface 0: MS TCP Loopback interface 
CanonicalHostName: localhost 
IP: 127.0.0.1 
Loopback? true 
SiteLocal? false 
 
NetworkInterface 1: Realtek Familie-PCI-Fast Ethernet-NIC - Paketplaner-Miniport 
CanonicalHostName: moe 
IP: 192.168.2.135 
Loopback? false 
SiteLocal? true