网络编程

开发平台：

Java

ICMPdump.java：源码内容

							import jpcap.*;
import java.net.*;
public class ICMPdump implements JpcapHandler
{
   public void handlePacket(Packet packet){
     System.out.println(packet);
      if (packet instanceof ICMPPacket) {
        System.out.println("协议类型：icmpPacket");
      ICMPPacket icmpPacket = (ICMPPacket) packet;
       /*System.out.println("Id=" + icmpPacket.id +":" );
                    System.out.println("Type=" + icmpPacket.type);
                    System.out.println("Code=" + icmpPacket.code);
                    System.out.println("data=" + icmpPacket.data);*/
       String srchost=String.valueOf(icmpPacket.getSourceAddress());
       String dstHost = String.valueOf(icmpPacket.getDestinationAddress());
      // System.out.println("icmpPacket sourceaddress"+icmpPacket.sourceaddress);
     //  System.out.println("icmpPacket destinationaddress"+icmpPacket.destinationaddress);
       System.out.println("icmpPacket type" + icmpPacket.type);
       System.out.println("icmpPacket code" + icmpPacket.code);
       System.out.println("icmpPacket checksum" + icmpPacket.checksum);
       System.out.println("");
       System.out.println("ip header" + icmpPacket.header);
       System.out.println("icmpPacket data" + icmpPacket.data);
     }
   }
   public static void main(String[] args) throws java.io.IOException{
  String[] devices = Jpcap.getDeviceList();
  System.out.println("Start capturing on "+devices[0]);
  String deviceName = devices[0];
  Jpcap jpcap = Jpcap.openDevice(deviceName, 1000, false, 20);
  jpcap.loopPacket(-1, new ICMPdump());
   }
}

						