FIREWALL
Protects network resources -- Uses existing routing capabilities to offer distributed threat mitigation of worms, viruses, and other network and application-layer threats and exploits
Helps lower total cost of ownership -- Reduces equipment footprint and minimizes power consumption
Increases deployment flexibility -- Offers options for transparent and virtual firewall policies on wide variety of WAN, WLAN, LAN and VLAN interfaces
Helps achieve regulatory compliance -- Provides policy-based access control to help meet Payment Card Industry (PCI), Health Insurance Portability and Accountability Act (HIPAA), Sarbanes-Oxley Act (SOX), and other regulations
Improves the integrity of Cisco Unified Communications -- Helps ensure that critical unified communications services, such as gateways and other UC network resources, remain available and resistant to potential exploits