This object specifies the IP address of the next hop that matching traffic should be forwarded to under this policy-based-forwarding filter, with 0.0.0.0 meaning no next-hop address is specified. It lets an administrator override normal routing decisions for specific traffic flows identified by the associated ACL. For instance, setting this to a specific gateway address would force traffic matching the filter's ACL to route through that gateway regardless of what the main routing table would otherwise select.