[replies to tech-net@NetBSD.ORG where this thread really belongs]

mouse> I do notice -ifp and -ifa options in that file

Bill> I'd guess, from that last sentance, that ifp'd take something
Bill> like "ed0", and ifa'd take whatever the interface address looks
Bill> like for that protocol.

Unfortunately, as far as I can tell the -ifp and -ifa arguments don't
work - the relevant part of the kernel code (route_output() in
sys/net/rtsock.c) doesn't pass the ifp and ifa arguments in the route
request message up to the route table management code (rtrequest() in
route.c).

- S