Get android Ethernet MAC Address (not wifi interface)

Question

I\'m using Android with Api level 8 and I want to get the Address of my Ethernet interface (eth0).

On API level 8, the NetworkInterface class don\'t have the function ge

Answer 1

Right now (March 2014) Google doesn't privides an API about Ethernet

This is the rason because we don't have a way to get the ethernet mac like in wifi case.

private String getWifiMACAddress(Context ctx) {
    WifiManager wifiManager = (WifiManager) this.getSystemService(Context.WIFI_SERVICE);
    WifiInfo info = wifiManager.getConnectionInfo();
   return info.getMacAddress();
}

One alternative is reading the eth0 file. Please let me know if anyone knows otherwise!

Answer 2

this way to use java fix it; maybe can help you

NetworkInterface netf = NetworkInterface.getByName("eth0");
byte[] array = netf.getHardwareAddress();
StringBuilder stringBuilder = new StringBuilder("");
String str = "";
for (int i = 0; i < array.length; i++) {
    int v = array[i] & 0xFF;
    String hv = Integer.toHexString(v).toUpperCase();
    if (hv.length() < 2) {
        stringBuilder.append(0);
    }
    stringBuilder.append(hv).append("-");                   
}
str = stringBuilder.substring(0, stringBuilder.length()- 1);

Answer 3

public static String getEthernetMacAddress() {
    String macAddress = "Not able to read";
    try {
        List<NetworkInterface> allNetworkInterfaces = Collections.list(NetworkInterface
                .getNetworkInterfaces());
        for (NetworkInterface nif : allNetworkInterfaces) {
            if (!nif.getName().equalsIgnoreCase("eth0")) 
                continue;

            byte[] macBytes = nif.getHardwareAddress();
            if (macBytes == null) {
                return macAddress;
            }

            StringBuilder res1 = new StringBuilder();
            for (byte b : macBytes) {
                res1.append(String.format("%02X:", b));
            }

            if (res1.length() > 0) {
                res1.deleteCharAt(res1.length() - 1);
            }
            macAddress = res1.toString();
        }
    } catch (Exception ex) {
        log(LogLevel.ERROR, "getEthernetMacAddress e :" + ex.getMessage());
        ex.printStackTrace();
    }
    return macAddress;
}

Answer 4

Assuming your ethernet interface is eth0, try opening and reading the file /sys/class/net/eth0/address.

Answer 5

Maybe my answer will be helpful to a few of you out there, and at least funny for the rest of you.

I was trying to get the ethernet MAC address for an Android TV device, to try to find the actual manufacturer the MAC address is registered to. I connected to the device with adb and used Joel F's great answer above and it worked great.

Then I flipped the box over and there it is on a sticker on the bottom of the device.

So if you don't need it programatically, try flipping the device over first.

P.S. I contacted the manufacturer the address is registered to, and they said they don't make this model and that other manufacturers copy their MAC addresses.

Answer 6

Check also /sys/class/efuse/mac at least on Amlogic platforms.