This read-create object holds the SNPA (subnetwork point of attachment) address to which a PDU should be forwarded in order to reach a destination matching this IP Reachable Address entry. It effectively provides the next-hop link-layer address for a manually or automatically configured reachable-address entry, letting the router forward traffic correctly even for statically injected reachability. An administrator manually adding reachability to a stub network reached via a specific next-hop router would set csIsisIPRASNPAAddress to that next-hop's link-layer address.