Defining SERVER_NAME to use RUN_REPORT_OBJECT on a hardware load balancer

Hi everybody,
We are deploying a Forms application on OAS (actually Forms & Reports Services - FRS) 10.1.2.0.2 using a hardware load balancer, that distributes workload between two FRS instances on separate computers.
Forms work without a hitch, but it is executing reports that's not working.
The problem is that when using RUN_REPORT_OBJECT you have to supply the REPORT_SERVER parameter, and each computer has a different report server name, but you don't know in advance wich FRS instance you are going to connect to, because the URL is that of the load balancer.
We thought that omitting the report server name from the report_object would do the trick but then we get an "FRM-41211 integration error" message
What would be the right o recomended way to solve this problem?
Thanks in advance,
Miguel.

What would be the right o recomended way to solve this problem?I don't know what would be the right or recomended way, I can say how we solved the problem in our Forms/Reports applications.
We have a lookup table where each machine has some parameters configured, one of which is the reports server name. The first form in each application identifies the machine where it's running, and reads corresponding rows in that table.

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