I've done a research on LAC/LNS qos. POlicy maps will be applied on the virtual-interface. I believe QOS has to be done before or after the tunnel. Is it possible to do QOS between the LAC and LNS instead? say LAC's interface to LNS is Fa0/0 and LNS' interface to LAC is Fa1/0. Then apply service-policy on those interfaces?