that's not really loadbalancing that you need.
It's more some kind of policy based routing or access control with ACL.
Do you need to access both servers using the same ip address ?
Same tcp port ?
The CSS can't really do policy based routing. So, you need to differentiate the 2 servers (different ip or differenrt port).
Then you just basically needs ACL to define which network can access what server.
Gilles.