Advanced Tomato openVPN setup: remote client --> local server --> local client --> remote server

This is a very similar problem to this thread: https://www.linksysinfo.org/index.php?threads/simultaneous-openvpn-server-client.72103/

I tried to post a response to it directly and revive it, but I'm too new and need more posts first. So I'm starting a new thread instead:


My setup details:

I have a router with advanced tomato AIO firmware.
I have a VPS with openVPN server running on it [IP address 2].
My router is a client to the VPS openVPN server (TUN UDP)
All local...

Advanced Tomato openVPN setup: remote client --> local server --> local client --> remote server