Is this router compatible with UFB?
http://www.cisco.com/c/en/us/products/collateral/routers/rv042g-dual-gigabit-wan-vpn-router/data_sheet_c78-706724.html

It does has Ethernet WAN and does support PPPoE but I have heard that you need to have VLAN tagging for a UFB router.
Is this right?

Can I plug this straight into the ONT where my fibre comes in?
And since it has 2 WAN ports does that mean I can also add a second UFB connection and balance my connection?