Network setup in openwrt?

Question

Network administration

Good afternoon, I need help setting up a router on openwrt.
There is an enterprise network, it has a domain and other services.
There is a microtic to openwrt launched through the metarouter
Now wan openwrt receives settings from the enterprise network via DHCP, later it will work through openconnect, but that's another story, now you need to deploy such an opportunity for the test with what you have.
It is necessary that openwrt network clients have access to a domain controller in the enterprise network, at least. The network must be transparent, that is, the Mikrotik network 192.168.1.1 must be perfectly friendly with the domain from the 192.168.0.1 network and vice versa.
In particular, it is important how to set up a network on openwrt for the above tasks.