Fuel master is running on: X.Y.35.85; PXE for eth0: Start: X.Y.35.87, End: X.Y.35.89, Gateway: X.Y.32.1; For Public network configuration, while deploying OpenStack environment, I have used: CIDR: X.Y.0.0/16, Start: X.Y.35.116, End: X.Y.35.120, Gateway: X.Y.32.1

I will look at it again on monday when I am at the office. However 1) CIDR: X.Y.0.0/16 this looks wrong to me. Although you configuration is correct try setting the range from X.Y.0.0/24. 2)I dont think the GW of the two networks can be the same. 3)try putting a vlan tag on the public network