I am trying to build container running juniper VPN client. My environment is Ubuntu 14.04. I am using the msjnc(http://mad-scientist.us/juniper.html). The problem I experienced is once msjnc launched, it should bring up a tunnel interface - tun0. Inside docker, such interface never get created. I manually create the /dev/net/tun with mknod /dev/net/tun c 10 200 and result is the same. Did I miss anything or such configuration is not supported inside docker?