Road between 2 bridges on Mikrotik?

Question

Computer networks

There is a network on Mikrotik.
It has a working segment (several PCs, ip-cameras and nvr, other devices and a server), and there is a guest segment (with access only to the Internet). The working network is bridge1, the guest network is bridge2 (that is, they are not connected in any way). Both have access to the Internet through the ppp-out1 4G modem.
Task: users from the bridge 2 guest network segment should have access to the server (and it is located in bridge1 and, accordingly, in another network segment).
PS I know that you can add Mikrotik's ethernet port to bridge2 and plug a second network port into the server, but is it possible to do without it?

Answer 1

Allow routing between networks and write an allow rule in the firewall.