Comment by arielb1

> nping --tcp --flags SA --source-ip 192.168.12.1 --dest-ip 10.8.0.8 -- rate 3 -c 3 -e ap0 --dest-mac 08:00:27:9c:53:12

Why is Linux accepting packets coming from one interface into an IP address belonging to a different interface? It feels like it is "forwarding" the packets internally, but `ip_forward` is turned off.

Is there any case where this behavior is legitimately useful?