I don't know about a new knob, but it's the same notion as rp_filter, so why not use rpf for RTN_LOCAL types? Ie, allow RTN_LOCAL and RTN_UNICAST at the top, but check rpf if the devs aren't equal or RTN_LOCAL....
It seems like not a good thing to rely on in the first place, though; usually receiving things from yourself is a bad thing. :-) +-DLS - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html