> I'm having a lot of trouble with the pkgsrc tcpflow on NetBSD 2.0_BETA > when sniffing lo0. It works fine on my ethernet card, but with lo0 I > just get this (with -v): check if tcpflow supports non-ethernet interface. my guess is that tcpflow supports ethernet frames, and not bpf encoding for lo0 (4-byte address family). itojun