static route installation in kernel with recursive nexthop

mpb

When should the resolving of recursive nexthop happen?
Is it in the control plane while installing the route into FIB or in the forwarding plane?

I am trying to create static routes as below (on a non-cisco/non-juniper box):

ip route 4.4.0.0/16 eth1

ip route 5.5.5.0.24 4.4.0.1

should the routing stack install the second route (5.5.5.0/24) into FIB with resolved nexthop or with 4.4.0.1 only?

what will be the consequence of installing 5.5.5.0/24 route with resolved nexthop i.e. 0.0.0.0 in this case?

If the route 5.5.5.0/24 is added in FIB with 4.4.0.1 then forwarding plane should resolve the nexthop 4.4.0.1. Will this not be a overhead to the forwarding plane?

please note that eth1 is not configured with any of the above mentioned IP addresses.

thanks in advance.

networker050184

You should lab it up and see.