Generating Random MAC Addresses with Python

README.md

TODO

• Create a CLI-Interface with the following options:
  • Unicast or Multicast? Default: Unicast
  • Locally Administered or Globally Unique? Default: Locally Administered
  • Prescribe specific OUI (overwrites the above two)
  • Number of MACs to generate (they should not collide and be piped out separated by newlines)

Resources

• MAC Adress on Wikipedia
• redhat's virtualization guide on Generating a new unique MAC address
• A Perl Script that does the same: randmac.pl
• The python module netaddr can help you work with MAC addresses.

randmac.py

#!/usr/bin/env python

import random

def randomMAC():
    return [ 0x00, 0x16, 0x3e,
        random.randint(0x00, 0x7f),
        random.randint(0x00, 0xff),
        random.randint(0x00, 0xff) ]

def MACprettyprint(mac):
    return ':'.join(map(lambda x: "%02x" % x, mac))

if __name__ == '__main__':
    print(MACprettyprint(randomMAC()))