Using the example from the PF User's Guide (http://www.openbsd.org/faq/pf/pools.html#outgoing), what's the best way to kill all states related to ONE of the route-to interfaces created by the "pass in on $int_if route-to { ($ext_if1 $ext_gw1), ($ext_if2 $ext_gw2) }..." rule? It is a simple thing to kill interface-specific states generated by the related "pass out on $ext_ifx route-to..." rules, but I'm uncertain of the best way to do this for the first rule.
I've also considered using rules using the probability option instead of route-to to more easily handle this, but using probability prevents the use of sticky-address in this situation. Thanks.