Java by API/java.net/NetworkInterface

NetworkInterface: getByInetAddress(InetAddress addr)

   <source lang="java">

import java.net.InetAddress; import java.net.NetworkInterface; public class ReportByAddress {

 static public void main(String args[]) throws Exception {
   InetAddress ia = InetAddress.getByName("www.google.ca");
   NetworkInterface ni = NetworkInterface.getByInetAddress(ia);
   System.out.println(ni);
 }

}

 </source>
   
  
 
  

NetworkInterface: getDisplayName()

   <source lang="java">
 

import java.net.InetAddress; import java.net.NetworkInterface; import java.net.SocketException; import java.util.Collections; import java.util.Enumeration; public class Main {

 public static void main(String args[]) throws SocketException {
   Enumeration<NetworkInterface> nets = NetworkInterface.getNetworkInterfaces();
   for (NetworkInterface netint : Collections.list(nets)) {
     displayInterfaceInformation(netint);
   }
 }
 private static void displayInterfaceInformation(NetworkInterface netint) throws SocketException {
   System.out.printf("Display name: %s%n", netint.getDisplayName());
   System.out.printf("Name: %s%n", netint.getName());
   Enumeration<InetAddress> inetAddresses = netint.getInetAddresses();
   for (InetAddress inetAddress : Collections.list(inetAddresses)) {
     System.out.printf("InetAddress: %s%n", inetAddress);
   }
   System.out.printf("%n");
 }

}

 </source>
   
  
 
  

NetworkInterface: getHardwareAddress()

   <source lang="java">
 

import java.net.InterfaceAddress; import java.net.NetworkInterface; import java.net.SocketException; import java.util.Enumeration; import java.util.Iterator; import java.util.List; public class Main {

 public static void main(String[] args) throws Exception {
   Enumeration<NetworkInterface> en = NetworkInterface.getNetworkInterfaces();
   while (en.hasMoreElements()) {
     NetworkInterface ni = en.nextElement();
     printParameter(ni);
   }
 }
 public static void printParameter(NetworkInterface ni) throws SocketException {
   System.out.println(" Name = " + ni.getName());
   System.out.println(" Display Name = " + ni.getDisplayName());
   System.out.println(" Is up = " + ni.isUp());
   System.out.println(" Support multicast = " + ni.supportsMulticast());
   System.out.println(" Is loopback = " + ni.isLoopback());
   System.out.println(" Is virtual = " + ni.isVirtual());
   System.out.println(" Is point to point = " + ni.isPointToPoint());
   System.out.println(" Hardware address = " + ni.getHardwareAddress());
   System.out.println(" MTU = " + ni.getMTU());
   System.out.println("\nList of Interface Addresses:");
   List<InterfaceAddress> list = ni.getInterfaceAddresses();
   Iterator<InterfaceAddress> it = list.iterator();
   while (it.hasNext()) {
     InterfaceAddress ia = it.next();
     System.out.println(" Address = " + ia.getAddress());
     System.out.println(" Broadcast = " + ia.getBroadcast());
     System.out.println(" Network prefix length = " + ia.getNetworkPrefixLength());
     System.out.println("");
   }
 }

}

 </source>
   
  
 
  

NetworkInterface: getHardwareAddress() throws SocketException

   <source lang="java">
 

import java.net.InetAddress; import java.net.NetworkInterface; public class Main {

 public static void main(String[] args) throws Exception {
   InetAddress address = InetAddress.getLocalHost();
   NetworkInterface ni = NetworkInterface.getByInetAddress(address);
   byte[] mac = ni.getHardwareAddress();
   for (int i = 0; i < mac.length; i++) {
     System.out.format("%02X%s", mac[i], (i < mac.length - 1) ? "-" : "");
   }
 }

}

 </source>
   
  
 
  

NetworkInterface: getInetAddresses()

   <source lang="java">
 

import java.net.InetAddress; import java.net.NetworkInterface; import java.net.SocketException; import java.util.Collections; import java.util.Enumeration; public class Main {

 public static void main(String args[]) throws SocketException {
   Enumeration<NetworkInterface> nets = NetworkInterface.getNetworkInterfaces();
   for (NetworkInterface netint : Collections.list(nets)) {
     displayInterfaceInformation(netint);
   }
 }
 private static void displayInterfaceInformation(NetworkInterface netint) throws SocketException {
   System.out.printf("Display name: %s%n", netint.getDisplayName());
   System.out.printf("Name: %s%n", netint.getName());
   Enumeration<InetAddress> inetAddresses = netint.getInetAddresses();
   for (InetAddress inetAddress : Collections.list(inetAddresses)) {
     System.out.printf("InetAddress: %s%n", inetAddress);
   }
   System.out.printf("%n");
 }

}

 </source>
   
  
 
  

NetworkInterface: getInterfaceAddresses()

   <source lang="java">
 

import java.net.InterfaceAddress; import java.net.NetworkInterface; import java.net.SocketException; import java.util.Enumeration; import java.util.Iterator; import java.util.List; public class Main {

 public static void main(String[] args) throws Exception {
   Enumeration<NetworkInterface> en = NetworkInterface.getNetworkInterfaces();
   while (en.hasMoreElements()) {
     NetworkInterface ni = en.nextElement();
     printParameter(ni);
   }
 }
 public static void printParameter(NetworkInterface ni) throws SocketException {
   System.out.println(" Name = " + ni.getName());
   System.out.println(" Display Name = " + ni.getDisplayName());
   System.out.println(" Is up = " + ni.isUp());
   System.out.println(" Support multicast = " + ni.supportsMulticast());
   System.out.println(" Is loopback = " + ni.isLoopback());
   System.out.println(" Is virtual = " + ni.isVirtual());
   System.out.println(" Is point to point = " + ni.isPointToPoint());
   System.out.println(" Hardware address = " + ni.getHardwareAddress());
   System.out.println(" MTU = " + ni.getMTU());
   System.out.println("\nList of Interface Addresses:");
   List<InterfaceAddress> list = ni.getInterfaceAddresses();
   Iterator<InterfaceAddress> it = list.iterator();
   while (it.hasNext()) {
     InterfaceAddress ia = it.next();
     System.out.println(" Address = " + ia.getAddress());
     System.out.println(" Broadcast = " + ia.getBroadcast());
     System.out.println(" Network prefix length = " + ia.getNetworkPrefixLength());
     System.out.println("");
   }
 }

}

 </source>
   
  
 
  

NetworkInterface: getMTU()

   <source lang="java">
 

import java.net.InterfaceAddress; import java.net.NetworkInterface; import java.net.SocketException; import java.util.Enumeration; import java.util.Iterator; import java.util.List; public class Main {

 public static void main(String[] args) throws Exception {
   Enumeration<NetworkInterface> en = NetworkInterface.getNetworkInterfaces();
   while (en.hasMoreElements()) {
     NetworkInterface ni = en.nextElement();
     printParameter(ni);
   }
 }
 public static void printParameter(NetworkInterface ni) throws SocketException {
   System.out.println(" Name = " + ni.getName());
   System.out.println(" Display Name = " + ni.getDisplayName());
   System.out.println(" Is up = " + ni.isUp());
   System.out.println(" Support multicast = " + ni.supportsMulticast());
   System.out.println(" Is loopback = " + ni.isLoopback());
   System.out.println(" Is virtual = " + ni.isVirtual());
   System.out.println(" Is point to point = " + ni.isPointToPoint());
   System.out.println(" Hardware address = " + ni.getHardwareAddress());
   System.out.println(" MTU = " + ni.getMTU());
   System.out.println("\nList of Interface Addresses:");
   List<InterfaceAddress> list = ni.getInterfaceAddresses();
   Iterator<InterfaceAddress> it = list.iterator();
   while (it.hasNext()) {
     InterfaceAddress ia = it.next();
     System.out.println(" Address = " + ia.getAddress());
     System.out.println(" Broadcast = " + ia.getBroadcast());
     System.out.println(" Network prefix length = " + ia.getNetworkPrefixLength());
     System.out.println("");
   }
 }

}

 </source>
   
  
 
  

NetworkInterface: getName()

   <source lang="java">
 

import java.net.InetAddress; import java.net.NetworkInterface; import java.net.SocketException; import java.util.Collections; import java.util.Enumeration; public class Main {

 public static void main(String args[]) throws SocketException {
   Enumeration<NetworkInterface> nets = NetworkInterface.getNetworkInterfaces();
   for (NetworkInterface netint : Collections.list(nets)) {
     displayInterfaceInformation(netint);
   }
 }
 private static void displayInterfaceInformation(NetworkInterface netint) throws SocketException {
   System.out.printf("Display name: %s%n", netint.getDisplayName());
   System.out.printf("Name: %s%n", netint.getName());
   Enumeration<InetAddress> inetAddresses = netint.getInetAddresses();
   for (InetAddress inetAddress : Collections.list(inetAddresses)) {
     System.out.printf("InetAddress: %s%n", inetAddress);
   }
   System.out.printf("%n");
 }

}

 </source>
   
  
 
  

NetworkInterface: isLoopback()

   <source lang="java">
 

import java.net.InterfaceAddress; import java.net.NetworkInterface; import java.net.SocketException; import java.util.Enumeration; import java.util.Iterator; import java.util.List; public class Main {

 public static void main(String[] args) throws Exception {
   Enumeration<NetworkInterface> en = NetworkInterface.getNetworkInterfaces();
   while (en.hasMoreElements()) {
     NetworkInterface ni = en.nextElement();
     printParameter(ni);
   }
 }
 public static void printParameter(NetworkInterface ni) throws SocketException {
   System.out.println(" Name = " + ni.getName());
   System.out.println(" Display Name = " + ni.getDisplayName());
   System.out.println(" Is up = " + ni.isUp());
   System.out.println(" Support multicast = " + ni.supportsMulticast());
   System.out.println(" Is loopback = " + ni.isLoopback());
   System.out.println(" Is virtual = " + ni.isVirtual());
   System.out.println(" Is point to point = " + ni.isPointToPoint());
   System.out.println(" Hardware address = " + ni.getHardwareAddress());
   System.out.println(" MTU = " + ni.getMTU());
   System.out.println("\nList of Interface Addresses:");
   List<InterfaceAddress> list = ni.getInterfaceAddresses();
   Iterator<InterfaceAddress> it = list.iterator();
   while (it.hasNext()) {
     InterfaceAddress ia = it.next();
     System.out.println(" Address = " + ia.getAddress());
     System.out.println(" Broadcast = " + ia.getBroadcast());
     System.out.println(" Network prefix length = " + ia.getNetworkPrefixLength());
     System.out.println("");
   }
 }

}

 </source>
   
  
 
  

NetworkInterface: isPointToPoint()

   <source lang="java">
 

import java.net.InterfaceAddress; import java.net.NetworkInterface; import java.net.SocketException; import java.util.Enumeration; import java.util.Iterator; import java.util.List; public class Main {

 public static void main(String[] args) throws Exception {
   Enumeration<NetworkInterface> en = NetworkInterface.getNetworkInterfaces();
   while (en.hasMoreElements()) {
     NetworkInterface ni = en.nextElement();
     printParameter(ni);
   }
 }
 public static void printParameter(NetworkInterface ni) throws SocketException {
   System.out.println(" Name = " + ni.getName());
   System.out.println(" Display Name = " + ni.getDisplayName());
   System.out.println(" Is up = " + ni.isUp());
   System.out.println(" Support multicast = " + ni.supportsMulticast());
   System.out.println(" Is loopback = " + ni.isLoopback());
   System.out.println(" Is virtual = " + ni.isVirtual());
   System.out.println(" Is point to point = " + ni.isPointToPoint());
   System.out.println(" Hardware address = " + ni.getHardwareAddress());
   System.out.println(" MTU = " + ni.getMTU());
   System.out.println("\nList of Interface Addresses:");
   List<InterfaceAddress> list = ni.getInterfaceAddresses();
   Iterator<InterfaceAddress> it = list.iterator();
   while (it.hasNext()) {
     InterfaceAddress ia = it.next();
     System.out.println(" Address = " + ia.getAddress());
     System.out.println(" Broadcast = " + ia.getBroadcast());
     System.out.println(" Network prefix length = " + ia.getNetworkPrefixLength());
     System.out.println("");
   }
 }

}

 </source>
   
  
 
  

NetworkInterface: isUp()

   <source lang="java">
 

import java.net.InterfaceAddress; import java.net.NetworkInterface; import java.net.SocketException; import java.util.Enumeration; import java.util.Iterator; import java.util.List; public class Main {

 public static void main(String[] args) throws Exception {
   Enumeration<NetworkInterface> en = NetworkInterface.getNetworkInterfaces();
   while (en.hasMoreElements()) {
     NetworkInterface ni = en.nextElement();
     printParameter(ni);
   }
 }
 public static void printParameter(NetworkInterface ni) throws SocketException {
   System.out.println(" Name = " + ni.getName());
   System.out.println(" Display Name = " + ni.getDisplayName());
   System.out.println(" Is up = " + ni.isUp());
   System.out.println(" Support multicast = " + ni.supportsMulticast());
   System.out.println(" Is loopback = " + ni.isLoopback());
   System.out.println(" Is virtual = " + ni.isVirtual());
   System.out.println(" Is point to point = " + ni.isPointToPoint());
   System.out.println(" Hardware address = " + ni.getHardwareAddress());
   System.out.println(" MTU = " + ni.getMTU());
   System.out.println("\nList of Interface Addresses:");
   List<InterfaceAddress> list = ni.getInterfaceAddresses();
   Iterator<InterfaceAddress> it = list.iterator();
   while (it.hasNext()) {
     InterfaceAddress ia = it.next();
     System.out.println(" Address = " + ia.getAddress());
     System.out.println(" Broadcast = " + ia.getBroadcast());
     System.out.println(" Network prefix length = " + ia.getNetworkPrefixLength());
     System.out.println("");
   }
 }

}

 </source>
   
  
 
  

NetworkInterface: isVirtual()

   <source lang="java">
 

import java.net.InterfaceAddress; import java.net.NetworkInterface; import java.net.SocketException; import java.util.Enumeration; import java.util.Iterator; import java.util.List; public class Main {

 public static void main(String[] args) throws Exception {
   Enumeration<NetworkInterface> en = NetworkInterface.getNetworkInterfaces();
   while (en.hasMoreElements()) {
     NetworkInterface ni = en.nextElement();
     printParameter(ni);
   }
 }
 public static void printParameter(NetworkInterface ni) throws SocketException {
   System.out.println(" Name = " + ni.getName());
   System.out.println(" Display Name = " + ni.getDisplayName());
   System.out.println(" Is up = " + ni.isUp());
   System.out.println(" Support multicast = " + ni.supportsMulticast());
   System.out.println(" Is loopback = " + ni.isLoopback());
   System.out.println(" Is virtual = " + ni.isVirtual());
   System.out.println(" Is point to point = " + ni.isPointToPoint());
   System.out.println(" Hardware address = " + ni.getHardwareAddress());
   System.out.println(" MTU = " + ni.getMTU());
   System.out.println("\nList of Interface Addresses:");
   List<InterfaceAddress> list = ni.getInterfaceAddresses();
   Iterator<InterfaceAddress> it = list.iterator();
   while (it.hasNext()) {
     InterfaceAddress ia = it.next();
     System.out.println(" Address = " + ia.getAddress());
     System.out.println(" Broadcast = " + ia.getBroadcast());
     System.out.println(" Network prefix length = " + ia.getNetworkPrefixLength());
     System.out.println("");
   }
 }

}

 </source>
   
  
 
  

NetworkInterface: supportsMulticast()

   <source lang="java">
 

import java.net.InterfaceAddress; import java.net.NetworkInterface; import java.net.SocketException; import java.util.Enumeration; import java.util.Iterator; import java.util.List; public class Main {

 public static void main(String[] args) throws Exception {
   Enumeration<NetworkInterface> en = NetworkInterface.getNetworkInterfaces();
   while (en.hasMoreElements()) {
     NetworkInterface ni = en.nextElement();
     printParameter(ni);
   }
 }
 public static void printParameter(NetworkInterface ni) throws SocketException {
   System.out.println(" Name = " + ni.getName());
   System.out.println(" Display Name = " + ni.getDisplayName());
   System.out.println(" Is up = " + ni.isUp());
   System.out.println(" Support multicast = " + ni.supportsMulticast());
   System.out.println(" Is loopback = " + ni.isLoopback());
   System.out.println(" Is virtual = " + ni.isVirtual());
   System.out.println(" Is point to point = " + ni.isPointToPoint());
   System.out.println(" Hardware address = " + ni.getHardwareAddress());
   System.out.println(" MTU = " + ni.getMTU());
   System.out.println("\nList of Interface Addresses:");
   List<InterfaceAddress> list = ni.getInterfaceAddresses();
   Iterator<InterfaceAddress> it = list.iterator();
   while (it.hasNext()) {
     InterfaceAddress ia = it.next();
     System.out.println(" Address = " + ia.getAddress());
     System.out.println(" Broadcast = " + ia.getBroadcast());
     System.out.println(" Network prefix length = " + ia.getNetworkPrefixLength());
     System.out.println("");
   }
 }

}

 </source>