Abstract: A system, method, and software product dynamically determine network applications associated with any ports being used by packets on a network, allowing the packets to be properly routed, counted, and reported according to their applications. In one embodiment, an application-port mapping table stores static associations or mappings between applications and ports, as defined by a standards body or other source. The application-port mapping table is dynamically updated during runtime to reflect dynamic associations between applications and ports as extracted from packet data. The associations are identified by a packet analysis module which performs a two step verification of an application for a packet. In a first step, the packet analysis module applies the ports from a packet to the application-port mapping table to obtain a first application identifier. In a second, separate step, the packet analysis module applies identification logic to the packet to identify an application based on packet data.