This setting selects how this policy term's action sets the next-hop address of a matching route: none leaves the action unused, nh-self points the next hop at this router itself, and nh-address uses the specific IP address in csRtPolicyTermActionNextHopAddr. An admin uses this to override next-hop behavior, a common technique when a router needs to insert itself into the forwarding path for matching routes. For example, setting csRtPolicyTermActionNextHopAddrType to nh-self(1) makes matching routes advertise this router as their next hop rather than the original upstream next hop.