# dtrace -n 'ip:::receive { @[args[2]->ip_saddr] = count(); }' dtrace: description 'ip:::receive ' matched 4 probes ^C 192.168.1.5 1 192.168.1.185 4 fe80::214:4fff:fe3b:76c8 9 127.0.0.1 14 192.168.1.109 28