Determining or trapping IP addressess of viewers connected

[Robert Segelbaum]

Hi folks,

Is there any way to perform the operation described in the Subject: 
header? I.e., is there any way I can see or query the IP addresses of 
clients connected via VNCViewer to the one in front of me running VNCServer?

I've scoured the available documentation for the answer...can't find 
it! So thanks for any brainpower anyone can contribute. Of course, 
maybe there IS no way...?

Rob