Java Program to implement Reverse Address Resolution Protocol
Java Program to implement Reverse Address Resolution Protocol
// RARP.java - Client
import java.io.*;
import java.net.*;
import java.util.*;
public class RARP {
public static void main(String args[]){
try{
DatagramSocket client = new DatagramSocket();
InetAddress addr = InetAddress.getByName("127.0.0.1");
byte[] sendByte = new byte[1204];
byte[] receiveByte = new byte[1024];
BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
System.out.println("Enter the Physical Address ");
String str = in.readLine();
sendByte = str.getBytes();
DatagramPacket sender = new DatagramPacket(sendByte,sendByte.length,addr,1309);
client.send(sender);
DatagramPacket receiver = new DatagramPacket(receiveByte,receiveByte.length);
client.receive(receiver);
String s = new String(receiver.getData());
System.out.println("The Logical Address is :" + s.trim());
client.close();
}
catch(Exception e){
System.out.println(e);
}
}
}
// RARPServer.java - Server
import java.io.*;
import java.net.*;
import java.util.*;
public class RARPServer{
public static void main(String args[]) {
try{
DatagramSocket server = new DatagramSocket(1309);
while(true){
byte[] sendByte = new byte[1204];
byte[] receiveByte = new byte[1204];
DatagramPacket receiver = new DatagramPacket(receiveByte,receiveByte.length);
server.receive(receiver);
String str = new String(receiver.getData());
String s = str.trim();
InetAddress addr = receiver.getAddress();
int port = receiver.getPort();
String ip[] = {"10.0.3.186"};
String mac[] = {"D4:3D:7E:12:A3:D9"};
for (int i = 0; i < ip.length; i++) {
if(s.equals(mac[i]))
{
sendByte = ip[i].getBytes();
DatagramPacket sender = new DatagramPacket(sendByte,sendByte.length,addr,port);
server.send(sender);
break;
}
}
break;
}
}catch(Exception e)
{
System.out.println(e);
}
}
}
import java.io.*;
import java.net.*;
import java.util.*;
public class RARP {
public static void main(String args[]){
try{
DatagramSocket client = new DatagramSocket();
InetAddress addr = InetAddress.getByName("127.0.0.1");
byte[] sendByte = new byte[1204];
byte[] receiveByte = new byte[1024];
BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
System.out.println("Enter the Physical Address ");
String str = in.readLine();
sendByte = str.getBytes();
DatagramPacket sender = new DatagramPacket(sendByte,sendByte.length,addr,1309);
client.send(sender);
DatagramPacket receiver = new DatagramPacket(receiveByte,receiveByte.length);
client.receive(receiver);
String s = new String(receiver.getData());
System.out.println("The Logical Address is :" + s.trim());
client.close();
}
catch(Exception e){
System.out.println(e);
}
}
}
// RARPServer.java - Server
import java.io.*;
import java.net.*;
import java.util.*;
public class RARPServer{
public static void main(String args[]) {
try{
DatagramSocket server = new DatagramSocket(1309);
while(true){
byte[] sendByte = new byte[1204];
byte[] receiveByte = new byte[1204];
DatagramPacket receiver = new DatagramPacket(receiveByte,receiveByte.length);
server.receive(receiver);
String str = new String(receiver.getData());
String s = str.trim();
InetAddress addr = receiver.getAddress();
int port = receiver.getPort();
String ip[] = {"10.0.3.186"};
String mac[] = {"D4:3D:7E:12:A3:D9"};
for (int i = 0; i < ip.length; i++) {
if(s.equals(mac[i]))
{
sendByte = ip[i].getBytes();
DatagramPacket sender = new DatagramPacket(sendByte,sendByte.length,addr,port);
server.send(sender);
break;
}
}
break;
}
}catch(Exception e)
{
System.out.println(e);
}
}
}
Output :
Enter the Physical Address : D4:3D:7E:12:A3:D9 The Logical Address is : 10.0.3.186
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