eth_random_addr(9) centos man page | unix.com

ETH_RANDOM_ADDR(9)					      Network device support						ETH_RANDOM_ADDR(9)

NAME
       eth_random_addr - Generate software assigned random Ethernet address

SYNOPSIS
       void eth_random_addr(u8 * addr);

ARGUMENTS
       addr
	   Pointer to a six-byte array containing the Ethernet address

DESCRIPTION
       Generate a random Ethernet address (MAC) that is not multicast and has the local assigned bit set.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014							ETH_RANDOM_ADDR(9)