Proxmox VE 3.2 VNC port numbers

I have a cluster of two hosts behind a NAT firewall. I am forwarding ports 5900-6000 to host1 which allows me to get to consoles of machines running on host1 from the web - works great. I am also forwarding ports 6001-6100 to host2.

How do I configure consoles on host 2 to use ports 6001-6100?

Although it is not a question about PVE, this is very easy to do, only should add to your firewall rules as port forwarding and prerouting using other ports, for that you can reach to the second PVE Node.
In Internet there a wealth of information about that.

Best regards
Cesar