I just noticed that IPX is defopted and
#include <netipx/ipx.h>
#include <netipx/ipx_if.>
are mentioned in /sys/net/if_ethersubr.c
Where can one find those header files? A search of the web shows they appear
in the FreeBSD source tree.. Are the two the same thing? What is the story?

Cheers,

Patrick