- I guess it should be possible, just configure the secondary-ISC to use CNR as the master and allow zone-transfers from the master to the secondart. ISC BIND will save zone information in it's own format.
-- ' A nun once asked a penguin ' do you think the earth is flat ? ; the penguin replied :
Madam, it all depends , in Riemann geometries the earth can be perfectly flat! The nun thanked him , he tripped and fell forward : the poor animal had forgotten that he might be living in a Riemann geometry too!