Hi Walter,  Isilon does not currently support access to two simultaneous DNS servers.  Is it possible for your primary DNS (the one serving the Client domain) to provide lookups for the management network?  If so, that would solve your problem as you could setup a static route for the separate management network.  If not, then I would suggest using the local hosts file on the cluster to provide lookups for the management network and a static route.   Cheers,Matt   
Hello ,  We have the following situation : isilon NL series for SnapIQ destinations  This box has to be connected  on the front site with the Client domain. The back has to be entered  from a separated networks for management purpose with it s own seperated DNS.  I m looking  now  for a  solution   Thx   Walter 
2 different DNS domains