Load Balance to specific pool's member

Hi,

 

I have a request to load balance to a specific pool members in 1 virtual server.

 

Description : Application A has 2 different servers. Each servers has 2 virtual machine.

 

Eg:

 

Server A (10.10.10.1, 10.10.10.2) Server B (20.20.20.1, 20.20.20.2)

 

The request is to make the load balance based on physical server instead of the virtual machines. The reason is because they wanted the load balance for the connections coming in to be distributed evenly between the 2 physical servers.

 

Expected Loadbalance to work : Conn 1 -> 10.10.10.1 Conn 2 -> 20.20.20.1 Conn 3 -> 10.10.10.2 Conn 4 -> 20.20.20.2

 

Is there any way we can do from the GUI or does iRule needed for this requirement?

 

Thanks!