Transparent Firewalls
Beginning with software version 7.0, transparent firewalling allows you to drop in a firewall
without having to consider the IP addressing structure and provides stealthy, high-speed
NOTE Until PIX Models 501/506E are supported in a future release of the Security
Appliance OS, PASM alone is available to manage these devices.
48 Chapter 3: Cisco Security Appliance
traffic analysis and filtering at Layers 2 to 7. One need not consider routing protocols or
providing special handling of multicast traffic.