I have a 7604 as a WAN router. I need to use a service policy to mark dscp based on a subnet address using an ACL. In addition to this service policy, I also need to honor dscp markings from things like IP Phones. It appears that its improper to use a service policy input on an interface to set dscp while also using the mls qos trust dscp command on the same interface.
Is there a workaround for something like this, on the same router?