Java Network Interface Get pingFromInterface(String name)

Description

ping From Interface

License

Open Source License

Declaration

public static boolean pingFromInterface(String name) throws IOException 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.io.IOException;
import java.net.*;

import java.util.Enumeration;
import static java.lang.System.out;

public class Main {
    public static final String IPv6_ONLY_SERVER_IP = "2001::7";
    public static final int IPv6_ONLY_SERVER_PORT = 22;

    public static boolean pingFromInterface(String name) throws IOException {
        out.println("Pinging from interface " + name);

        boolean connected = false;

        NetworkInterface networkInterface = NetworkInterface.getByName(name);
        if (networkInterface == null) {
            out.println("No network interface for " + name);
            return false;
        }/*from www  . j a  v a 2 s  .co  m*/

        Enumeration<InetAddress> inetAddresses = networkInterface.getInetAddresses();

        while (inetAddresses.hasMoreElements()) {
            InetAddress localAddr = inetAddresses.nextElement();
            out.println("Using address " + localAddr);

            connected |= pingFromLocalAddress(localAddr);
        }
        return connected;
    }

    public static boolean pingFromLocalAddress(InetAddress localAddr) throws IOException {
        boolean connected = false;
        Socket socket = null;
        try {
            socket = new Socket(IPv6_ONLY_SERVER_IP, IPv6_ONLY_SERVER_PORT, localAddr, 0);
            out.println("Created!");
            connected = true;
        } catch (IOException e) {
            out.println("Failed to connect");
            e.printStackTrace(out);
        } finally {
            if (socket != null) {
                socket.close();
            }
        }
        return connected;
    }
}

Related

1. getPublicInterface()
2. getUsualNetworkInterfaces()
3. isActive(String niName)
4. isNixMashPC()
5. parseInterfaceList(String s)
6. print(Collection objs)
7. printValidInterfaces(PrintWriter pout)
8. toNI(String niName)