I have an OpenBSD firewall with two external interfaces which are
pppoe(4). Is it possible to use multipath on them? I tried adding
two default routes with multipath but it would refuse. I don't think
it likes -ifp and 0.0.0.1 being the gateway.

In the meantime, I just have default route set on one of the pppoe(4)s
and use reply-to/route-to for loadbalancing in pf.conf instead.

Surely, there's an easier way to do all this? I can't use trunk(4)
since pppoe(4) is a virtual device.

Does anyone have any suggestions?

Thanks!

Tom