How to configure mikrotik to selectively work through 2 networks on the same interface?

Question

Mikrotik

Mikrotik is included in the local network, which has a white address allocated to me, for example 200.123.234.123, as well as a gray one 10.0.1.10/8. Behind the router on my side is the local network 192.168.1.0/24. The task is to register both networks on one incoming interface (at the moment, a white IP is nailed), all traffic should go through the white one by default, but so that it is possible to register gray 10.0.0.0/8 addresses on the necessary devices, so that they, and only they were visible from the gray network! Mikrotik itself does not need to have a gray address ...

Answer 1

You are confusing something. And it is strong and either in the description or in logic.
Have you been given a gray network? Well, that is, your provider routes traffic to some gray network indicating your device as a router of this network? If you need to issue addresses from the same network that was issued to you on the device? Then they must be in the same l2 broadcast domain (i.e. either we output them in front of the router, or we make a bridge).