Java Network Interface Get getFirstMACAdress()

Description

Returns the first MAC adress that is found in the system.

License

Open Source License

Exception

Parameter	Description
SocketException	if an I/O error occurs.

Return

MAC adress

Declaration

private static byte[] getFirstMACAdress() throws SocketException 

Method Source Code

//package com.java2s;
/*******************************************************************************
 * Copyright (C) 2015 Connor Lanigan (email: dev@connorlanigan.com)
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 *******************************************************************************/

import java.net.NetworkInterface;
import java.net.SocketException;

import java.util.Enumeration;

public class Main {
    /**/*from   w  w  w .j  av a 2  s. c  o m*/
     * Returns the first MAC adress that is found in the system.
     *
     * @return MAC adress
     * @throws SocketException
     *             if an I/O error occurs.
     */
    private static byte[] getFirstMACAdress() throws SocketException {
        final Enumeration<NetworkInterface> networkInterfaces = NetworkInterface
                .getNetworkInterfaces();

        while (networkInterfaces.hasMoreElements()) {
            final NetworkInterface network = networkInterfaces
                    .nextElement();

            final byte[] bmac = network.getHardwareAddress();
            if (bmac != null) {
                return bmac;
            }
        }
        throw new SocketException(
                "No network interfaces with a MAC adress found.");
    }
}

Related

1. getAvailableNetworkInterface()
2. getBroadcast()
3. getCustomMACFormat(NetworkInterface inte)
4. getDefaultInterface()
5. getDefaultNetworkInterface()
6. getFreeTunnelInterface()
7. getGlobalI()
8. getGlobalInterfaces()
9. getGoodNetworkInterfaces()