3 * Murray Jensen <Murray.Jensen@cmst.csiro.au>
5 * SPDX-License-Identifier: GPL-2.0+
14 main(int argc, char *argv[])
16 unsigned long ethaddr_low, ethaddr_high;
18 srand(time(0) + (getpid() << 8));
21 * setting the 2nd LSB in the most significant byte of
22 * the address makes it a locally administered ethernet
25 ethaddr_high = (rand() & 0xfeff) | 0x0200;
28 printf("%02lx:%02lx:%02lx:%02lx:%02lx:%02lx\n",
29 ethaddr_high >> 8, ethaddr_high & 0xff,
30 ethaddr_low >> 24, (ethaddr_low >> 16) & 0xff,
31 (ethaddr_low >> 8) & 0xff, ethaddr_low & 0xff);