[Users] ovirt 3.1 vnc passwordless setup

Hi guys, I am running Ovirt 3.1 (fresh install -- no upgrade) on some Centos 6.3 servers; and I did a small setup regarding 2 hypervisors, 1 node controller and 1 NAS server providing NFS export, storage & ISO domains for the appliances. All this solution has one server more that's acting as a firewall and traffic policy shaping in front of the network setup. The problem that I am facing right now, is that I am trying to setup Ovirt on VNC remote connection in the manner that does not require password login with 120 seconds expiration timeout. Somehow I would like to map VNC ports on the 2 hypervisor nodes to bond with a vnc reflector installed on the node controller, which also acts as a VPN server on the setup for out-band connections. Therefore, users connecting over VPN could get access to the VNC of the VMs without entering the web portal and requiring an active VNC password with 120 seconds expiration time. I tried digging through the libvirtd.conf and qemu.conf configuration files, found some VNC parameters but none seemed to do the job for my purpose. I must mention that I have been looking for a similar setup on the Ovirt documentation page as well as googlin' it. You help will be much appreciated. My regards, Alex Vladulescu