Package io.netty.util.internal

Class MacAddressUtil

  • public final class MacAddressUtil
extends java.lang.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 java.lang.String formatAddress​(byte[] addr)  
      static byte[] parseMAC​(java.lang.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​(java.lang.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 java.lang.String formatAddress​(byte[] addr)
        Parameters:
        addr - byte array of a MAC address.
        Returns:
        hex formatted MAC address.