Grant wrote, >What does it say when you use *192* for the first byte? Same thing, I had a typo in first email, arping -c 2 -w 3 -D -I ib0 192.168.0.1 ARPING 192.168.0.1 from 0.0.0.0 ib0 Sent 2 probes (2 broadcast(s)) Received -1 response(s) woody