Then you only need to configure one of the Mikrotik interfaces to be in a new network which is in the same subnet as the management of Zyxel. Add it in wan zone, connect the second cable, and you are good.
Then you only need to configure one of the Mikrotik interfaces to be in a new network which is in the same subnet as the management of Zyxel. Add it in wan zone, connect the second cable, and you are good.