How to organize access to the server from different addresses in the local network?

Question

Computer networks

Good afternoon. I drew a slightly curved diagram, but I hope it will be clear. In the settings, Mikrotik specified a rule in firewall nat according to instructions on the Internet, but there is no connection. (Microtik pings dir 615 and back.
Thanks in advance.

Answer 1

Make a rule on Mikrotik

/ip firewall nat
add action=masquerade chain=srcnat dst-address=192.168.0.0/24 out-interface="интерфейс смотрящий в dir-615"

Or, if without this, then on the host computer, add a static route
Well, check that Mikrotik's firewall is not blocking your connections.

Answer 2

On Mikrotik, set up a NAT rule
/ip firewall nat
add action=netmap chain=dstnat dst-port=port-of-videoserver in-interface=ethernet-port-to-come-192.168.0.1 protocol=tcp to-addresses=172.222.0.200 to- ports=video-server-port

Answer 3

Is it necessary to have 2 subnets?
I understand why mobile phones need a different subnet with a firewall rule prohibiting routing between networks ...
Bridge the micro or set the master port on the slave interfaces, in general, combine the interfaces that do not participate in the hotspot.
On the interface that participates in the hotspot, hang your dhcp with blackjack and butterflies.
On the register, get an IP via dhtsp and fix it there or with handles not from the dhtsp DIR615 pull, profit.