I have inherited a whacky poorly designed network. Without the budget to fix it at this time. Basically, we have a couple cabinets of servers running web servers, database servers, storage, video encoders, and email. The servers are all configured with PUBLIC IP's and each system has software firewalling. Our uplink to the datacenter is via a switch that all the servers are connected to. We now want to add some load balancing and our ISP has Local Directors. For a number of reasons I can't change the servers to have private IP's. So the question is can I connect the Local director to the same switch and the uplink to the datacenter's uplink. I know this will pass all my traffic through the load balancer but it should just pass it through right? It only cares about the servers it is configured to load balance.
Is there a better way to do it given the restrictions I have to work with?