Reverse Path Loadbalancing

[WRIGHT Alan]

Folks,
I was looking in the LVS web site for some idea if reverse L3/4 load
balancing has been implemented.
 
By reverse load balancing I mean the case as follows:
 
Users------Router1-------------Box1---------Router2---Internet
                                |------Box2-----|
                                |------Box3-----|
 
Box1, 2, 3 are like devices, sharing the same functionality, but they
need the users to be stickied to them. This of course would mean that
reverse traffic returning via router2 would need also to be stickied to
the Box assigned by the outbound flow.
 
Has this been done?
 
Many Thanks

Alan