[CentOS] Bonding mode balance-alb (6): How to control the assigned MAC address?

Hi,

we are trying to switch our bonding modes from 1 (active-backup) to 6 
(balance-alb).  However it seems, that these bond devices are not always 
getting the MAC address from the same slave.  Sometimes the device gets 
the MAC address of the first and sometimes of the second slave.  Since 
only the MAC address of the first slave device is (can be) registered in 
DHCP, this breaks connectivity (about) every second time we boot the 
computer.

Is there a way to control which MAC address is assigned to the bonding 
device w/o configuring it explicitely in the ifcfg file?

Cheers
frank