network 2
TRANSCRIPT
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EX.NO: IMPLEMENTATION OF ADDRESS RESOLUTION PROTOCOL DATE :
AIM:
To implement Address Resolution Protocol . ALGORITHM:
Client Side:
1. Establish a connection between the Client and Server.Socket ss=new Socket(InetAddress.getLocalHost(),1100);
2. Create instance output stream writer .PrintWriter ps=new PrintWriter(s.getOutputStream(),true);
3. Get the IP Address to resolve its physical address. 4. Send the IPAddress to its output Stream.
ps.println(ip); 5. Print the Physical Address received from the server.
Server Side:
1. Accept the connection request by the client.ServerSocket ss=new ServerSocket(2000);
Socket s=ss.accept(); 2 . Get the IPaddress from its inputstream.
BufferedReader br1=new BufferedReader(new InputStreamReader(s.getInputStream()));ip=br1.readLine();
3. During runtime execute the process Runtime r=Runtime.getRuntime();Process p=r.exec("arp -a "+ip);
4. Send the Physical Address to the client.
PROGRAM:ARP CLIENT
import java.io.*;
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import java.net.*;class ArpClient{public static void main(String args[])throws IOException { try {
Socket ss=new Socket(InetAddress.getLocalHost(),1100); PrintStream ps=new PrintStream(ss.getOutputStream());
BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
String ip;System.out.println("Enter the IPADDRESS:");ip=br.readLine();ps.println(ip);String str,data;BufferedReader br2=new BufferedReader(new
InputStreamReader(ss.getInputStream()));System.out.println("ARP From Server::");do{
str=br2.readLine();System.out.println(str);
}while(!(str.equalsIgnoreCase("end"))); } catch(IOException e) { System.out.println("Error"+e); } }}
ARP SERVER
import java.io.*;import java.net.*;class ArpServer{public static void main(String args[])throws IOException { try {
ServerSocket ss=new ServerSocket(1100); Socket s=ss.accept();PrintStream ps=new PrintStream(s.getOutputStream());BufferedReader br1=new BufferedReader(new InputStreamReader(s.getInputStream()));String ip;ip=br1.readLine();Runtime r=Runtime.getRuntime();Process p=r.exec("arp -a "+ip);
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BufferedReader br2=new BufferedReader(new InputStreamReader(p.getInputStream()));
String str;while((str=br2.readLine())!=null){ ps.println(str);}
} catch(IOException e) { System.out.println("Error"+e);
} } }
OUTPUT
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C:\Networking Programs>java ArpServer
C:\Networking Programs>java ArpClientEnter the IPADDRESS:192.168.11.58ARP From Server::
Interface: 192.168.11.57 on Interface 0x1000003 Internet Address Physical Address Type 192.168.11.58 00-14-85-67-11-84 dynamic
RESULT:
Thus the implementation of ARP is done & executed successfully.
IMPLEMENTATION OF ECHO
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Echo Serverimport java.io.*;import java.net.*;class EchoServer{public static void main(String args[])throws IOException { try {
ServerSocket ss=new ServerSocket(1100); Socket s=ss.accept();PrintStream ps=new PrintStream(s.getOutputStream());BufferedReader br=new BufferedReader(new
InputStreamReader(System.in));String str,data;do{ System.out.println("Server To LocalHost:");
str=br.readLine();ps.println(str);
}while(!(str.equalsIgnoreCase("end"))); } catch(IOException e) { System.out.println("Error"+e); } }}Echo Clientimport java.io.*;import java.net.*;class EchoClient{public static void main(String args[])throws IOException { try {
Socket ss=new Socket(InetAddress.getLocalHost(),1100); BufferedReader br=new BufferedReader(new
InputStreamReader(ss.getInputStream()));String str,data;do{
str=br.readLine();System.out.println("Echo From Server::"+str);
}while(!(str.equalsIgnoreCase("end"))); } catch(IOException e) { System.out.println("Error"+e); } }}
OUTPUT
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SERVER WINDOW:C:\Networking Programs>java EchoServerServer To LocalHost:haiServer To LocalHost:welcomeServer To LocalHost:how are youServer To LocalHost:End
CLIENT WINDOW:C:\Networking Programs>java EchoClientEcho From Server::haiEcho From Server::welcomeEcho From Server::how are youEcho From Server::end
EX.NO: IMPLEMENTATION OF REMOTE METHOD INVOCATIONDATE :
AIM:
To implement remote method invocation.
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ALGORITHM:
1.Create the rmi interface where the following methods are declared.
public int add(float a,float b)throws RemoteException;
public int multiply(int a,int b)throws RemoteException;
public float divide(float a,float b)throws RemoteException;
2.Implement remote objects at server side which are declared in the rmi
interface.
3. At client side the remote objects are called and their process is
executed.
PROGRAM:
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RMI INTERFACEimport java.rmi.*;public interface rmiInterface extends Remote{public int add(float a,float b)throws RemoteException;public int multiply(int a,int b)throws RemoteException;public float divide(float a,float b)throws RemoteException;}
RMI SERVERimport java.rmi.*;import java.rmi.server.*;import java.io.*;public class rmiServer extends UnicastRemoteObject implements rmiInterface{public rmiServer()throws RemoteException{}public int add(float a,float b)throws RemoteException{
int c;c=(int)(a+b);return(c);
}public int multiply(int a,int b)throws RemoteException{
int c;c=(int)a*b;return(c);
}public float divide(float a,float b)throws RemoteException{ float c;
c=(float)a/b;return(c);
}public static void main(String args[])throws Exception{ try { rmiServer rs=new rmiServer();
Naming.rebind(args[0],rs); } catch(Exception e) { System.out.println("Error"+e); }}}
RMI CLIENT
import java.io.*;import java.rmi.*;public class rmiClient{public static void main(String sdfs[])throws Exception
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{ try {
float a,b,c,d;int e,f;String rr;rmiInterface ri=(rmiInterface)Naming.lookup(sdfs[0]);BufferedReader br = new BufferedReader(new
InputStreamReader(System.in));do{ System.out.println("1.Add()\n2.Multiply()\n3.Divide()\n4.Exit()\
nEnter U'R choice:"); int sw=Integer.parseInt(br.readLine());
switch(sw) {
case 1:System.out.println("Enter the First Value");a=Float.parseFloat(br.readLine());System.out.println("Enter the Second Value");b=Float.parseFloat(br.readLine());System.out.println("The Added Value Is:"+ ri.add(a,b));break;
case 2:System.out.println("Enter the First Value");e=Integer.parseInt(br.readLine());System.out.println("Enter the Second Value");f=Integer.parseInt(br.readLine());System.out.println("The Added Value Is:"+
ri.multiply(e,f));break;
case 3:System.out.println("Enter the First Value");c=Float.parseFloat(br.readLine());System.out.println("Enter the Second Value");d=Float.parseFloat(br.readLine());System.out.println("The Added Value Is:"+
ri.divide(c,d));break;
case 4:System.exit(0);break;
} System.out.println("Do u Want to Continue 1/0"); rr=br.readLine();}while(rr.equalsIgnoreCase("1"));
} catch(Exception e) {
System.out.println("Error"+e); }}}
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OUTPUT
C:\Networking Programs>rmic rmiServer
C:\Networking Programs>start rmiregistry
C:\Networking Programs>java rmiServer 127.0.0.1
C:\Networking Programs>java rmiClient 127.0.0.11.Add()2.Multiply()3.Divide()4.Exit()
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Enter U'R choice:1Enter the First Value12Enter the Second Value12The Added Value Is:24Do u Want to Continue 1/011.Add()2.Multiply()3.Divide()4.Exit()Enter U'R choice:2Enter the First Value12Enter the Second Value12The Added Value Is:144Do u Want to Continue 1/00
RESULT:
Thus the implementation of RMI is done & executed successfully.
IMPLEMENTATION OF REMOTE COMMAND EXECUTION
CLIENT PROGRAM:
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import java.io.*;import java.net.*;class clientRCE{public static void main(String args[]) throws IOException { try {
String str;Socket client=new Socket("127.0.0.1",6555);PrintStream ps=new PrintStream(client.getOutputStream());BufferedReader br=new BufferedReader(new
InputStreamReader(System.in));System.out.println("\t\t\t\tCLIENT WINDOW\n\n\t\tEnter The
Command:");str=br.readLine();ps.println(str);
} catch(IOException e) { System.out.println("Error"+e); } }}
SERVER PROGRAM:
import java.io.*;import java.net.*;class serverRCE{public static void main(String args[]) throws IOException { try { String str;
ServerSocket server=new ServerSocket(6555);Socket s=server.accept();BufferedReader br=new BufferedReader(new
InputStreamReader(s.getInputStream()));str=br.readLine();Runtime r=Runtime.getRuntime();Process p=r.exec(str);
} catch(IOException e) { System.out.println("Error"+e); }}}
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OUTPUTC:\Networking Programs>java serverRCE
C:\Networking Programs>java clientRCE CLIENT WINDOW
Enter The Command:Notepad
EX.NO: IMPLEMENTATION OF PINGDATE :
AIM:
To ping the server with its ipaddress.
ALGORITHM:
CLIENT SIDE:
1. Establish a connection between the Client and Server.
Socket ss=new Socket(InetAddress.getLocalHost(),1100);
2. Create instances for input and output streams .
PrintStream ps=new PrintStream(ss.getOutputStream());
BufferedReader ips=new BufferedReader
(newInputStreamReader (ss.getInputStream()));
3. Get the ip address that is to be pinged.
BufferedReader br=new BufferedReader(new
InputStreamReader(System.in));
ip=br.readLine();
4. Send the message to its output Stream.
ps.println(str);
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SERVER SIDE:
1.Accept the connection request by the client.
ServerSocket ss=new ServerSocket(1100);
Socket s=ss.accept();
2. Get the ip address sent by the client.
str=ips.readLine();
3. Print the pinging information.
Process p=r.exec("ping "+ip);
PROGRAM:
CLIENT PROGRAM:import java.io.*;import java.net.*;class PingClient{public static void main(String args[])throws IOException { try {
Socket ss=new Socket(InetAddress.getLocalHost(),1100); PrintStream ps=new PrintStream(ss.getOutputStream());BufferedReader br=new BufferedReader(new
InputStreamReader(System.in));String ip;System.out.println("Enter the IPADDRESS:");ip=br.readLine();ps.println(ip);String str,data;BufferedReader br2=new BufferedReader(new
InputStreamReader(ss.getInputStream()));System.out.println("Ping From Server::");do{
str=br2.readLine();System.out.println(str);
}while(!(str.equalsIgnoreCase("end"))); } catch(IOException e)
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{ System.out.println("Error"+e); } }}
SERVER PROGRAM:import java.io.*;import java.net.*;class PingServer{public static void main(String args[])throws IOException { try {
ServerSocket ss=new ServerSocket(1100); Socket s=ss.accept();PrintStream ps=new PrintStream(s.getOutputStream());BufferedReader br1=new BufferedReader(new
InputStreamReader(s.getInputStream()));String ip;ip=br1.readLine();Runtime r=Runtime.getRuntime();Process p=r.exec("ping "+ip);BufferedReader br2=new BufferedReader(new
InputStreamReader(p.getInputStream()));String str;while((str=br2.readLine())!=null){ ps.println(str);}
} catch(IOException e) { System.out.println("Error"+e);
} }}
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OUTPUTC:\Networking Programs>java PingServerC:\Networking Programs>java PingClientEnter the IPADDRESS:192.168.11.57Ping From Server::Pinging 192.168.11.57 with 32 bytes of data:
Reply from 192.168.11.57: bytes=32 time<10ms TTL=128Reply from 192.168.11.57: bytes=32 time<10ms TTL=128Reply from 192.168.11.57: bytes=32 time<10ms TTL=128Reply from 192.168.11.57: bytes=32 time<10ms TTL=128Ping statistics for 192.168.11.57: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),Approximate round trip times in milli-seconds: Minimum = 0ms, Maximum = 0ms, Average = 0ms
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RESULT:
Thus the implementation of PING is done & executed successfully.
EX.NO: IMPLEMENTATION OF TALKDATE :
AIM:
To implement TALK using User Datagram Protocol.
ALGORITHM:
SERVER SIDE:
1.Create datagram socket for theclient.
public static DatagramSocket ds;
2. Get the message to transfer.
BufferedReader br=new BufferedReader(new
InputStreamReader(System.in));
Str=br.readLine();
3. Send the datagram to its client .
ds.send(new DatagramPacket(buffer,str.length(),ia,clientport));
4. Get the datagram sent by server
5.Thus the chatting between client and server is done until server
sends end signal
CLIENT SIDE:
1. Create datagram socket for theclient.
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public static DatagramSocket ds;
2. Client receives the datagram sent by the server.
DatagramPacket p=new DatagramPacket(buffer, buffer.length);
ds.receive(p);
3. Client sends the reply to server;
4. Thus the chatting between client and server is done until client
sends end signal
PROGRAM:
CLIENT PROGRAM:
import java.io.*;import java.net.*;class SWPClient{public static void main(String args[])throws IOException { try {
int client=3000,server=3002; DatagramSocket ds=new DatagramSocket(client);DatagramPacket dp;byte outbuff[]=new byte[1024];byte inbuff[]=new byte[1024];String str,data;DataInputStream dis=new DataInputStream(System.in);do{System.out.println("To Server:");str=dis.readLine();outbuff=str.getBytes();InetAddress ia=InetAddress.getLocalHost();dp=new DatagramPacket(outbuff,str.length(),ia,server);ds.send(dp);System.out.println("From Server:");dp=new DatagramPacket(inbuff,inbuff.length);ds.receive(dp);data=new String(dp.getData(),0,dp.getLength());System.out.println(data);
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}while(!(str.equalsIgnoreCase("end") || data.equalsIgnoreCase("end") )); } catch(IOException e) { System.out.println("Error"+e); } }}
SERVER PROGRAM:
import java.io.*;import java.net.*;class SWPServer{public static void main(String args[])throws IOException { try {
int client=3000,server=3002; DatagramSocket ds=new DatagramSocket(server);DatagramPacket dp;String str,data;byte inbuff[]=new byte[1024];byte outbuff[]=new byte[1024];do{ dp=new DatagramPacket(inbuff,inbuff.length);ds.receive(dp);str=new String(dp.getData(),0,dp.getLength());System.out.println("From Client:"+str);System.out.println("To Client:");DataInputStream dis=new DataInputStream(System.in);data=dis.readLine();outbuff=data.getBytes();InetAddress ia=dp.getAddress();int port=dp.getPort();dp=new DatagramPacket(outbuff,data.length(),ia,port);ds.send(dp);}while(!(str.equalsIgnoreCase("end") ||
data.equalsIgnoreCase("end") )); }
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catch(IOException e) { System.out.println("Error"+e); } }}
OUTPUT:
SERVER:
C:\Networking Programs>java SWPServerFrom Client:from aTo Client:from bFrom Client:haiTo Client:good dayFrom Client:okTo Client:End
CLIENT:
C:\Networking Programs>java SWPClientTo Server:from aFrom Server:from bTo Server:haiFrom Server:good dayTo Server:okFrom Server:End
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RESULT:
Thus the implementation of TALK is done & executed successfully.
EX.NO: IMPLEMENTATION OF SHORTEST PATH ROUTING ALGORITHMDATE:
AIM:
To implement shortest path routing algorithm to calculate shortest
path from source to destination.
ALGORITHM:
1.Read the number of nodes.n=Integer.parseInt(n1);
2.Read the weight of each node weight[i][j]=n3;
3.Read the source node s=Integer.parseInt(s1);
4.Read the destination node t=Integer.parseInt(t1)
5.Calculate the distance If newdist<distance[i]
then distance[i]=newdist; else if distance[i]<smalldist
smalldist=distance[i];
6.Print the distance “ShortestPath="+pd;
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PROGRAM:
import java.io.*;class shortestPath{int n,infy,s,t,i,n1;int weight[][]=new int[10][10];int pd,k,dc;int prem[]=new int[10];int distance[]=new int[10];int current,smalldist,newdist;int j,n3;shortestPath(){infy=1000;}void input(){try{BufferedReader br=new BufferedReader(new InputStreamReader(System.in));System.out.println("Enter the no of nodes");String n1=br.readLine();n=Integer.parseInt(n1);System.out.println("Enter the nodes");for(i=0;i<n;i++){for(j=0;j<n;j++){String n2=br.readLine();n3=Integer.parseInt(n2);weight[i][j]=n3;}}System.out.println("Enter the source");String s1=br.readLine();s=Integer.parseInt(s1);System.out.println("Enter the Destination");String t1=br.readLine();t=Integer.parseInt(t1);
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}catch(IOException e){System.out.println("Error"+e);}spath(s,t);}void spath(int s,int t){for(i=0;i<n;i++){prem[i]=0;distance[i]=infy;}distance[s]=0;prem[s]=1;current=s;while(current!=t){smalldist=infy;dc=distance[current];for(i=0;i<n;i++){if(prem[i]==0){
newdist=dc+weight[current][i];if(newdist<distance[i]){distance[i]=newdist;}if(distance[i]<smalldist){smalldist=distance[i];k=i;}}}
current=k;prem[current]=1;}pd=distance[t];System.out.println("ShortestPath="+pd);}public static void main(String args[])throws IOException{shortestPath sp=new shortestPath();sp.input();}}
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OUTPUT
C:\Networking Programs>java shortestPath
Enter the no of nodes5
Enter the weight
1000102030200
100010001000501000
10001000100010001000
100010001000100060
100010007010001000
Enter the source:0
Enter the Destination:4
ShortestPath=90
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RESULT:
Thus the implementation of shortest path is done & executed successfully.
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EX.NO:IMPLEMENTATION OF REVERSE ADDRESS RESOLUTION PROTOCOL DATE :
AIM:
To implement Reverse Address Resolution Protocol . ALGORITHM:
Client Side:
1. Establish a connection between the Client and Server.Socket ss=new Socket(InetAddress.getLocalHost(),1100);
2. Create instance output stream writer .PrintWriter ps=new PrintWriter(s.getOutputStream(),true);
3. Get the Physical Address to resolve its IP address. 4. Send the Physical Address to its output Stream. 5. Print the IP address received from the server.
Server Side:
1. Accept the connection request by the client.ServerSocket ss=new ServerSocket(2000);
Socket s=ss.accept(); 2 . Get the Physical address from its inputstream. 3. During runtime execute the process
Runtime r=Runtime.getRuntime();Process p=r.exec("arp -a "+ip);
4. Send the Physical Address to the client.
PROGRAM:
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RARP CLIENT:import java.io.*;import java.net.*;class rarpclient{ public static void main(String args[])throws IOException { Socket s1=new Socket("localhost",3500); DataInputStream in=new DataInputStream(s1.getInputStream()); DataOutputStream on=new DataOutputStream(s1.getOutputStream()); BufferedReader b=new BufferedReader(new InputStreamReader(System.in)); while(true) { System.out.println("Enter mac add"); String o=b.readLine() ; on.writeUTF(o);String t=in.readUTF(); System.out.println("The IP add"+t);} } }RARP SERVER:import java.io.*;import java.net.*;class rarpserver{ public static void main(String args[])throws IOException { ServerSocket s=new ServerSocket(3500); Socket c=s.accept(); DataInputStream i=new DataInputStream(c.getInputStream()); DataOutputStream o=new DataOutputStream(c.getOutputStream()); BufferedReader b=new BufferedReader(new InputStreamReader(System.in)); String ip[]=new String[100]; String mac[]=new String[100]; System.out.println("How many add to be updated"); int n=Integer.parseInt(b.readLine()); int f=0,h=0; for(int j=0;j<n;j++) { int u=j+1; System.out.println("Enter the "+u+"ip address"); ip[j]=b.readLine(); System.out.println("Enter CORRES mac address"); mac[j]=b.readLine();} while(true) { f=0; String t=i.readUTF(); System.out.println("Please send the ip add of"+t);
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for(int k=0;k<n;k++) { if(mac[k].equals(t)) { o.writeUTF(ip[k]); f=1; break; } } if(f==0) {o.writeUTF("add cannot be resolved"); } }}}
OUTPUT:
C:\jdk1.3\bin>javac rarpserver.java
C:\jdk1.3\bin>java rarpserverHow many add to be updated2
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Enter the 1ip address192.168.0.10Enter CORRES mac address10Enter the 2ip address192.168.0.23Enter CORRES mac address23Please send the ip add of10Please send the ip add of23Please send the ip add of12
C:\jdk1.3\bin>javac rarpclient.java
C:\jdk1.3\bin>java rarpclientEnter mac add10The IP add192.168.0.10Enter mac add23The IP add192.168.0.23Enter mac add12The IP addadd cannot be resolved
RESULT:
Thus the implementation RARP is done & executed successfully.