UDP reverse proxying for OpenVPN isn't working using Nginx streams

[akb-nginx]

Thanks for your responce. I think I am out of luck then as far as proxying
UDP openvpn is concerned. Any particular reason that Nginx took this
approach instead of how very basic load balancers like "Pen" etc do it.

I was able to proxy using simpler tools like pen and nc but a more loaded
Nginx fails for the reasons you mentioned.

Posted at Nginx Forum: https://forum.nginx.org/read.php?2,273875,273878#msg-273878