As discussed in the previous chapter, firewalls can be deployed in multiple modes, including routed and transparent, and most of them can be virtualized into security contexts that provide cost-effective solutions.
The virtual firewall is a security context and it is a way to partition a physical firewall into multiple logical devices, each with its own configuration. This is similar to having multiple standalone firewalls but without having to buy separate devices. When defining security contexts on a device, the old configuration will be saved in the appropriate file and the new virtual firewalls will each . . .
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