To configure VPN inside a container first the steps to setup the tun/tap device module has to be followed then VPN has to be installed to work with the tun/tap module inside the container. VPN uses other softwares like OpenVpn, Tinc, etc. to be used to start working with the networking module. After configuring VPN setup the host operating system for communication purpose. VPN continer has to configure VETH interface before the use. NAT can be used as interconnection to configure and use the VPN inside a container.