I have a small business router Cisco rv134w, I have three VLAN and DHCP server on it and each VLAN on a physical port also I have a cisco layer 3 switches which I want to separate it to three zones for each VLANs, I already try by creating vlan2,3,4 on cisco switch and give them IP address also I was using IP helper-address by I have conflicting IP address. Does any solution, please?