The very brilliant folks over at
UltraVNC have
done it again! They have released the newest version of their
VNC repeater. I'll borrow from some of their documentation when
showing how it is supported inside of VNCScan.
For starters, you can download the latest build of the repeater
below. The repeater is basically a very simply proxy
server but is has some power features for VNC.
The repeater solves the problem of NAT to NAT VNC connections for
many situations. All that you really need to do is run the
repeater on a computer at the perimeter of the network and have a
port available to it through the firewall.