PacketAssure’s Access Control functionality can be used not only for packet filtering but also to select types of traffic to be processed, forwarded, discarded, or sent to an alarm log, thereby creating a sophisticated user-definable firewall.

PacketAssure traffic shaping and policing features control access to available bandwidth, ensuring that priority flows conform to their pre- established policies, even when under attack. 

In addition to port blocking, the PacketAssure also contains a built-in hardware protocol checker for security applications, such as Denial of Service (DoS) attacks.  This allows operators to check and drop packets based on configurable conditions, prior to packet processing.