>In openbsd there is a macro called DLT_LOOP. I guess there is something 
>like it in netbsd.
>DLT_LOOP is a datalink type. In openbsd its defined in /usr/src/sys/net/bpf.h
>This way:
>#define DLT_LOOP        12      /* loopback type (af header) */
>DLT_LOOP is for loopback interface.
>Anyone knows if there is the same for netbsd but named differently?
>Bye,

	usually DLT_NULL means the same encapsulation.  not sure about the
	reason for DLT_LOOP/DLT_NULL separation in openbsd.

itojun