Security Contexts (Virtual Firewall)
Before the introduction of Security Appliance Software Version 7.0, Cisco PIX Firewalls and
ASA Security Appliances supported a universal firewall configuration to which all traffic flow
must conform. With Version 7.0, the PIX Firewalls and ASA Security Appliances support
multiple unique firewall configurations in a single device. This capability creates multiple
virtual firewalls, each unique and independent of one another. Secure contexts are discussed
in greater detail in Chapter 9, “Security Contexts.”