Aspects of the disclosure provide an improved method for processing a packet transmitted on a network. The method for processing the packet can include defining a set of non-overlapped intervals on a range field, defining one or more range rules that each range rule is in association with a subset of the non-overlapped intervals, identifying a non-overlapped interval, to which a parameter of the packet belongs, and executing an action on the packet based on a range rule associated with the non-overlapped interval to which the parameter belongs.