Help with VPN's and Docker Container Networking

I need a helping hand at my server networking. Do you know Docker, IPSec (libreswan), OpenVPN and iptables? Please bid ;-). I have two Docker Container (kylemanna/openvpn && hwdsl2/ipsec-vpn-server). Both are in a own bridged network ([login to view URL]). e.g. like this: OpenVPN Server ([login to view URL]) IPSec Server ([login to view URL]) And i have many proxies in this own bridged network. These are only over VPN reachable (we have more proxys, for any Unit at our Company one): Squid01 ([login to view URL] || webdomain of company unit 1) Squid02 ([login to view URL] || webdomain of company unit 2) Squid03 ([login to view URL] || webdomain of company unit 3) Additional we have one reverse Proxy ([login to view URL]) to send traffic to the apaches in SquidContainer (Setup the Squids with webinterface). Now i want to send the traffic from [login to view URL] to Squid01, traffic of [login to view URL] to Squid02 .... That's not the big Problem, but i want to send the traffic to the proxy with the internal IP of the VPN-Client like 10.10.0.11. The IP is setted by the VPN Server. At this moment only the IP of the VPN Server ([login to view URL]) is in proxy visible. The OpenVPN gives his Clients ([login to view URL]). The IPSec gives his Clients ([login to view URL]).