io.netty.util.internal

Class MacAddressUtil

java.lang.Object

io.netty.util.internal.MacAddressUtil

public final class MacAddressUtil
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
static int	MAC_ADDRESS_LENGTH Length of a valid MAC address.

Method Summary

Modifier and Type	Method and Description
static byte[]	bestAvailableMac() Obtains the best MAC address found on local network interfaces.
static String	formatAddress(byte[] addr)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

MAC_ADDRESS_LENGTH

public static final int MAC_ADDRESS_LENGTH

Length of a valid MAC address.

See Also:

Constant Field Values

Method Detail

bestAvailableMac

public static byte[] bestAvailableMac()

Obtains the best MAC address found on local network interfaces. Generally speaking, an active network interface used on public networks is better than a local network interface.

Returns:

byte array containing a MAC. null if no MAC can be found.

formatAddress

public static String formatAddress(byte[] addr)

Parameters:

addr - byte array of a MAC address.

Returns:

hex formatted MAC address.