Two subnets two external interfaces how to start up the second subnet through the second gateway?

Question

Mikrotik

Greetings everyone, I ran into a situation that cannot be resolved, the essence:
There is a main subnet 192.168.10.xx and a guest wi-fi network 172.16.10.xx (CAPsMAN), there are two external interfaces (different providers) main and backup, main and guestbook are not visible to each other (routing rules).
There was an idea to unload the main channel from the guest network and let guests through the backup channel. already smoked the whole Google (well, it seems to me) and it didn’t work out. Does anyone have a ready config or at least ideas?
Thanks in advance.

Answer 1

you need to make a separate routing table and drive your guest wi-fi and the Internet under it
https://habr.com/ru/post/443788/