Class MacAddressUtil

java.lang.Object

io.netty.util.internal.MacAddressUtil

public final class MacAddressUtil
extends Object

Method Summary

Modifier and Type	Method	Description
static byte[]	bestAvailableMac()	Obtains the best MAC address found on local network interfaces.
static byte[]	defaultMachineId()	Returns the result of bestAvailableMac() if non-null otherwise returns a random EUI-64 MAC address.
static String	formatAddress(byte[] addr)
static byte[]	parseMAC(String value)	Parse a EUI-48, MAC-48, or EUI-64 MAC address from a String and return it as a byte[].

Methods inherited from class Object

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

Method Details

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.

defaultMachineId

public static byte[] defaultMachineId()

Returns the result of bestAvailableMac() if non-null otherwise returns a random EUI-64 MAC address.

parseMAC

public static byte[] parseMAC(String value)

Parse a EUI-48, MAC-48, or EUI-64 MAC address from a String and return it as a byte[].

Parameters:

value - The string representation of the MAC address.

Returns:

The byte representation of the MAC address.

formatAddress

public static String formatAddress(byte[] addr)

Parameters:

addr - byte array of a MAC address.

Returns:

hex formatted MAC address.