返回信息流从网上找了个代码，但在运行的时候老不行，不知道该怎么搞，如果在命令行里面输入java ICMP却显示Usage:javaICMP;应该怎样才能往下运行，代码里面的ip地址和mac地址我都修改了，ICMPPacket的seq和id不知道要不要修改，菜鸟求解答，谢谢！
import java.net.InetAddress;
import jpcap.JpcapCaptor;
import jpcap.JpcapSender;
import jpcap.NetworkInterface;
import jpcap.packet.EthernetPacket;
import jpcap.packet.ICMPPacket;
import jpcap.packet.IPPacket;
class ICMP {
public static void main(String[] args) throws java.io.IOException {
NetworkInterface[] devices = JpcapCaptor.getDeviceList();
if (args.length < 1) {
System.out
.println("Usage: java ICMP <device index (e.g., 0, 1..)> ");
for (int i = 0; i < devices.length; i++)
System.out.println(i + ":" + devices[i].name + "("
+ devices[i].description + ")");
System.exit(0);
}
int index = Integer.parseInt(args[0]);
// 开启网络设备
JpcapCaptor captor = JpcapCaptor.openDevice(devices[index], 2000,
false, 3000);
// 设置只过滤 icmp包
captor.setFilter("icmp", true);
JpcapSender sender = captor.getJpcapSenderInstance();
ICMPPacket p = new ICMPPacket();
p.type = ICMPPacket.ICMP_ECHO;
p.seq = (short) 0x0005;
p.id = (short) 0x0006;
p.setIPv4Parameter(0, false, false, false, 0, false, false, false, 0,
1010101, 100, IPPacket.IPPROTO_ICMP, InetAddress
.getByName("118.229.176.56"), InetAddress
.getByName("118.229.176.37"));
p.data = "abcdefghijklmnopqrstuvwabcdehghi".getBytes();
EthernetPacket ether = new EthernetPacket();
ether.frametype = EthernetPacket.ETHERTYPE_IP;
// 填写自己和对方的mac地址，必须要正确填写，如果有错误将无法收到回包
ether.dst_mac = new byte[] { (byte) 0x00, (byte) 0x1D, (byte) 0x72,
(byte) 0x4D, (byte) 0x58, (byte) 0x12 };
ether.src_mac = new byte[] { (byte) 0x00, (byte) 0x16, (byte) 0xD3,
(byte) 0xBD, (byte) 0x6c, (byte) 0xA0 };
p.datalink = ether;
sender.sendPacket(p);
System.out.println("send...");
ICMPPacket rp = null;
while (true) {
rp = (ICMPPacket) captor.getPacket();
if (rp == null) {
throw new IllegalArgumentException("no rcv icmp echo reply");
} else {
System.out.println("rcv icmp echo reply");
return;
}
}
}
}
这是一条镜像帖。来源：北邮人论坛 / java / #17613同步于 2011/3/22
该镜像源已超过 30 天没有更新，可能在源站已被删除。
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java如何处理icmp报文的收发
gghwcf
2011/3/22镜像同步1 回复
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