[ic] Cluster / IP question

[DB]

I'm looking into clustering for my IC stores. Once of the HA software 
packages that I'm considering has what may be a very serious drawback: 
all requests sent to the clustered servers lack the visitor's original 
IP address. Instead all requests come in using the IP of the box that 
runs the HA server.

Since IC uses the visitors IP for the session ID among other things, it 
seems like this might be a bad idea. Does anyone have thoughts or 
suggestions?

DB