MacAddressUtil (Netty API Reference (5.0.0.Alpha4))

java.lang.Object
- io.netty5.util.internal.MacAddressUtil

public final class MacAddressUtil
extends Object

Method Summary

All Methods Static Methods Concrete Methods
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 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- 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.
  - 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.