Two providers on one mikrotike?

Question

VPN

Good afternoon GURU!
Please tell me the structure is like this.
There is an ASUS router that receives Internet from a satellite, a microtic with a 3g modem is plugged into it. Mikrotik connects to the VPN server.
The question is how to set up Mikrotik so that it allows traffic from the local network through ASUS, but if something happens to ASUS, does it switch to a 3G modem?
Thanks

Answer 1

The first part of the article for you https://habr.com/post/244385/