Emulating ALLMULTI on broken hardware

[Bruce M Simpson]

I think NetBSD may have a more general solution to the problem of handling
the emulation of ALLMULTI on hardware which doesn't support it (such as
the PRISM2 wireless cards).

Discussion of M_PROMISC (new mbuf flag) here:
	http://mail-index.netbsd.org/tech-net/2003/03/19/0001.html

Perhaps M_PROMISC is a better way of flagging an incoming mbuf as not
being for us when running in IFF_PPROMISC? Or an mbuf tag? Ideas?

BMS