Hello thank you in advance for your time.

I I'm trying to setup the IOT 2050 as a industrial router. I configured openVPN on the device to allow me to SSH, ftp, http, etc through the VPN. My next goal is to allow me to use TIA portal to update the code on the S7 also through the VPN. To that end i have some questions about configuration. First how do i set the eth0 adapter to allow me to connect to the S7? What type of software drivers to i need to install to make the S7 discoverable by the TIA software. Do i need to use NAT to route traffic to the s7?  Any tutorial you might have to do this setup would be greatly apricated. 

I currently have my WAN on eth1 and the s7 on eth0. When i run ip route show it does not seem to see the s7. I have node-red running and my goal will be to read data off the s7 with node-red but it doesn't seem accessible? is there a good tutorial for how to setup node-red to read data off the s7-1200?

thank you for any help