OSPF Forward Address (FA):

• works like BGP next-hop for OSPF external routes

• advertised only if next-hop is on a not-passive and multiaccess interface

• if there's not a route to FA address, route is not installed

• FA = 0.0.0.0 --> cost to ABR

• FA <> 0.0.0.0 --> cost to FA address

• NSSA --> FA is …