Dual entry for a LVS cluster

[Sebastien <sebglist@xxxxxxx>]

Hello,

I have two real server (RS1 et RS2) and two other PC (PC1 and PC2) to 
make a Linux Virtual Cluster (all on a private network). I want to use 
the two PC as the entry of this linux virutal server with load balancing 
or failover between those two PC.
INTERNET <---LOADBALANCING/FAILOVER (DNS or IP sharing)---->   PC1 
<---NAT/TUN/DR----> RS1
                                                                        
                                              |---> PC2  <---          
              -----> RS2
What are my choice to make this linux virtual server ?

Thanks

Sébastien