The PF (packet filter) firewall includes:

• A stateful packet inspection engine
• The ability to replicate state information to a backup firewall.
• A flexible self optimizing rule engine.
• QOS support.
• The ability to collect performance metrics.
  • These metrics can be useful for gauging the performance of a firewall platform, and provide a way to trend firewall performance over time.

Check State Table Size Limits

Check State Table Size Usage

Check Performance Info

Display Active Connections

Display Firewall Rule Info

Log Packets