only delete existing routes (very useful after rtnetlink detected an interface to be down)
only delete existing routes (very useful after rtnetlink detected an interface to be down)

zioproto/olsrd-gsoc2012,duydb2/olsr,sebkur/olsrd,nolith/olsrd,nolith/olsrd,diogomg/olsrd-binary-heap,tdz/olsrd,tdz/olsrd,sebkur/olsrd,diogomg/olsrd,cholin/olsrd,zioproto/olsrd-gsoc2012,acinonyx/olsrd,zioproto/olsrd,servalproject/olsr,diogomg/olsrd,duydb2/olsr,zioproto/olsrd,diogomg/olsrd-binary-heap,sebkur/olsrd,cholin/olsrd,cholin/olsrd,cholin/olsrd,acinonyx/olsrd,ninuxorg/olsrd,tdz/olsrd,cholin/olsrd,diogomg/olsrd,diogomg/olsrd-binary-heap,diogomg/olsrd,diogomg/olsrd,zioproto/olsrd-gsoc2012,zioproto/olsrd-gsoc2012,diogomg/olsrd-binary-heap,duydb2/olsr,sebkur/olsrd,acinonyx/olsrd,zioproto/olsrd,ninuxorg/olsrd,tdz/olsrd,nolith/olsrd,sebkur/olsrd,zioproto/olsrd,diogomg/olsrd,servalproject/olsr,ninuxorg/olsrd,diogomg/olsrd-binary-heap,zioproto/olsrd-gsoc2012,acinonyx/olsrd,duydb2/olsr,servalproject/olsr,duydb2/olsr,zioproto/olsrd,ninuxorg/olsrd,acinonyx/olsrd,diogomg/olsrd-binary-heap,sebkur/olsrd,duydb2/olsr,nolith/olsrd,servalproject/olsr,duydb2/olsr,diogomg/olsrd,tdz/olsrd,nolith/olsrd,servalproject/olsr,ninuxorg/olsrd,diogomg/olsrd-binary-heap,zioproto/olsrd-gsoc2012,servalproject/olsr,duydb2/olsr