Is it possible to configure Mikrotik RB750Gr3 as two routers in one?

Question

Computer networks

Hello!
The provider on one physical line provides two static IP addresses, in the future it will give one more address.
Is it possible to set up such a connection if the provider's cable is connected to ether 1, and I want the first IP address issued by the provider to go to, for example, the 192.168.1.0/24 subnet on ether 2 and have gateway 192.168.1.1 and the second IP, for example, to the 192.168. /24 on ether 3 with gateway 192.168.2.1. Moreover, the rules for filtering and port forwarding are different for each external IP of the provider and its own subnet. DHCP is not required. In general, make sure that for network clients it is two different routers or 3 in the future.

Answer 1

Can. I allow. I think the rest of the inhabitants of the toaster will not mind.
The question is what?

Answer 2

In general, I do not see any problems. The main thing is that you should have such a table in your head
https://i.mt.lv/routerboard/files/RB750Gr3-esw2-16...
If the Internet speed is not 1gb, then I recommend switching two ports under wan to 100 mode
Between them and switch there will be a 1gb channel (but conditionally there will be 200) .
switch between themselves will already be like a normal switch and give it further.
Since you don’t have any special frills, you don’t even need to label the packages.
Settings in NAT for each network, its own way out.