> -----Original Message-----
> From: netbsd-users-owner@NetBSD.org 
> [mailto:netbsd-users-owner@NetBSD.org] On Behalf Of Steven M. Bellovin
> Sent: Monday, January 23, 2006 8:15 PM
> To: Michael D. Spence
> Cc: netbsd-users@NetBSD.org
> Subject: Re: Picking a default route from multiple 
> dhclient-managed interfaces 
> 
> 



> If you don't want to do that, create a /etc/dhclient-enter-hooks file.
> It should say something like this:
> 
> 
> if [ "$interface" = uselessinterface ]; then
> 	unset $new_routers
> fi
> 
> That will unset the variable on entry, which will cause the 
> rest of the 
> script to avoid using it as a default route.

Thanks, I'll give that a try.  Do you suppose an alias and a custom
dhclient-script would've worked, though?  I was thinking that would
allow me to do failover because it looked to me like I'd get informed
of losing the lease and other such things.  That way, if something 
happened to the regular modem or interface I could change the routing 
to use whatever IP the second interface was assigned, then change it
back if the first one came back to life.