Re: ipv6 gateway on different subnet

I'm not sure if it really matters here or not, but the
original IPv6 model was that all routing addresses should
be link-local (never a global, or any other form).

The are many reasons for that, the obvious one is that the
next hop must (by definition) be on the same link, and
so link local addresses work best, and tend to be far more
stable than any of the others.

So try
	route add -inet6 default fe80::whatever%interface

and see if that works any better (using the correct syntax
for the route command, and the link local addr of the router
instead of "whatever" and the appropriate interface name).

If the router is correctly sending RAs and the local node is
processing them, that should just happen without any need for
manual configuration.   If it isn't, that probably needs some attention.

kre