How to boot Windows via pxe from different networks?

Question

Mikrotik

Hello, I want to set up a WDS server on the network, according to multiple configuration instructions, I succeeded, the question arises how to do this from different networks. For example, the WDS server is located on the 172.16.3.0/24 network and the clients are on the 172.16.9.0/24 network ... Mikrotik acts as dhcp for me ... It is necessary to allow broadcast .. traffic between networks and configure options in the dhcp server, but not I understand how to do it.. I ask for help... Traffic between networks 172.16.3.0/24 and 172.16.9.0/24 goes.