Hi all,
I'm using a roterboard with two WANS and two bridges. Each bridge is configured to bo connected to one of the WANS, so that bridge A (with local IP 10.1.50.1) is connected to WAN 1 and bridge B (with local IP 10.1.60.1) is connected to WAN 2.
Everything works fine, clients connected to the LAN A (10.1.50.0/24) are connected to internet through WAN 1, and so for LAN B (10.1.60.0/24) and WAN 2.
The point are the DNS servers. At the moment, the two DHCP servers of the two bridges are configured to give 8.8.8.8 and 208.67.222.222 as DHCP servers.
I would like to have the clients of the LAN A refer to a DNS like 10.1.50.1 and the clients of the LAN B 10.1.60.1, using the routerboard to manage the DNS so that I can use static DNS entries to address different manchines on the two LAN.
It is possible with just one router?
Thank you!
Denis

Yes, it is possible.
Remember to configure external DNS servers and select "allow remote requests" under the IP-DNS page

I think you can dst-nat port 53 (if the DNS server is an external device, let's say a pi-hole) or redirect if the Mikrotik device itself is used.

Check:
viewtopic.php?t=159291
and:
viewtopic.php?f=2&t=174873

You might need additionally to masquerade/src-nat, depending on your configuration, see also:
viewtopic.php?t=189578

Read also this current thread here:
viewtopic.php?t=204996
which is seemingly very similar.