kvm macaddress generation

kvm macaddress generation

The following link showed a good way of generating of MAC Addresses for KVM based Virtual Machine(s).

Code - 1 : 

#!/usr/bin/python
# macgen.py script to generate a MAC address for guest virtual machines
#
import random
#
def randomMAC():
    mac = [ 0x00, 0x16, 0x3e,
        random.randint(0x00, 0x7f),
        random.randint(0x00, 0xff),
        random.randint(0x00, 0xff) ]
    return ':'.join(map(lambda x: "%02x" % x, mac))
#
print randomMAC()

Code - 2 :

# echo  'import virtinst.util ; print\
 virtinst.util.uuidToString(virtinst.util.randomUUID())' | python
# echo  'import virtinst.util ; print virtinst.util.randomMAC()' | python

I got these code snippets from the following link.

https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Virtualization_Administration_Guide/sect-Virtualization-Tips_and_tricks-Generating_a_new_unique_MAC_address.html