Inet

import java.net.InetAddress;
import java.net.UnknownHostException;

/**
 *
 * @author Julio Chinchilla
 */
public class Inet {

    /**
     * Devuelve un arreglo mostrando todas las ip del host a consultar
     * @param url
     * @return
     * @throws UnknownHostException
     */
    public static String[] getAllIP(String url) throws UnknownHostException {
        InetAddress[] inetAddresses = InetAddress.getAllByName(url);
        String [] res = new String[inetAddresses.length];
        int i = 0;
        for (InetAddress ipAddress : inetAddresses) {
            res[i] = ipAddress.toString();
            i++;
        }
        return res;
    }

    /**
     * Devuelve la ip local de la máquina
     * @return String IP del host donde se ejecutó
     * @throws UnknownHostException
     */
    public static String getLocalIP () throws UnknownHostException {
        InetAddress ip = InetAddress.getLocalHost();
    return ip.getHostAddress();
    }

}