limit hard {
    limit = ${hardLimit};
    restart {
      restart = +M; 
    }
    reach {
      exec = "/sbin/ipfw add ${hardRuleUp} deny ip from any to any";
      exec = "/sbin/ipfw add ${hardRuleDown} reject ip from any to any";
    }
    expire {
      expire = +M; 
      exec = "/sbin/ipfw delete ${hardRuleUp}";
      exec = "/sbin/ipfw delete ${hardRuleDown}";
    }
  }

  limit soft {
    limit = ${softLimit};
    restart {
      restart = +D;
    }
    reach {
      exec = "/sbin/ipfw add ${softRuleUp} queue 3 ip from any to any";
      exec = "/sbin/ipfw add ${softRuleDown} queue 5 ip from any to any";
    }
    expire {
      expire = +D;
      exec = "/sbin/ipfw delete ${softRuleUp}";
      exec = "/sbin/ipfw delete ${softRuleDown}";
    }
  }