A method, system and computer-usable medium are disclosed for providing information related to a user address as used in a communication session. According to one embodiment, a firewall provides network-layer protection to internal hosts against unauthorized access by hosts of an external network by performing network address translation processing of Internet Protocol addresses. One or more inwardly projecting notches are cut into the post. Communications detected on a coherence interconnect may indicate that a cache line is associated with performance-reducing events.