Elastic cluster nodes in different subnet

If I setup data node in X network subnet and master in Y subnet will it give me grief?
all systems will have 10x2 = 20gig bonded network.
They are not in different zone. Same datacenter just different subnet.

If the nodes can talk with each other it makes no difference if they are in the same subnet or not.

Well, other than if those subnets were over a WAN.

they are not over WAN. I guess I should be good then.