Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Don't compile with -g by default; there's a better way to build modules with
debug support.

Drop <bsd.man.mk> support from <bsd.kmod.mk>.

Not objected to by: -current

A node that allows ethernet type packets to be filtered to different
hooks depending on ethertype. Great for prototyping protocols.
connects to the lower and upper hooks of an ethernet type of node.

Obtained from: Monzoon Networks.
Thanks to Andre Oppermann, May 2001.