└── Serverrarp12.java


/Serverrarp12.java:
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 1 | 
 2 | import java.io.*;
 3 | import java.net.*;
 4 | import java.util.*;
 5 | class Serverrarp12
 6 | {
 7 | public static void main(String args[])
 8 | {
 9 | try
10 | {
11 | DatagramSocket server=new DatagramSocket(1309);
12 | while(true)
13 | {
14 | byte[] sendbyte=new byte[1024];
15 | byte[] receivebyte=new byte[1024];
16 | DatagramPacket receiver=new
17 | DatagramPacket(receivebyte,receivebyte.length);
18 | server.receive(receiver);
19 | String str=new String(receiver.getData());
20 | String s=str.trim();
21 | //System.out.println(s);
22 | InetAddress addr=receiver.getAddress();
23 | int port=receiver.getPort();
24 | String ip[]={"165.165.80.80","165.165.79.1"};
25 | String mac[]={"6A:08:AA:C2","8A:BC:E3:FA"};
26 | for(int i=0;i<ip.length;i++)
27 | {
28 | if(s.equals(mac[i]))
29 | {
30 | sendbyte=ip[i].getBytes();
31 | DatagramPacket sender=new
32 | DatagramPacket(sendbyte,sendbyte.length,addr,port);
33 | server.send(sender);
34 | break;
35 | }
36 | }
37 | break;
38 | }
39 | }
40 | catch(Exception e)
41 | {
42 | System.out.println(e);
43 | }
44 | }
45 | }
46 | 


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