From: Roland Dreier <roland@kernel.org>
Date: Mon, 25 Jul 2011 09:34:16 -0700

So I don't think we can use custom neigh_ops with a new solict method
the way clip does -- we actually want to let the normal stack do ARP
or ND, but then extend the process by another message/response step.
I'm sure this is possible within your scheme but I'm not sure I
understand what the "right" way is.

So call the normal ARP neigh solicit stuff in your neigh ops, and do
your local stuff there as well.

See if you can make it work.