Cisco PIX 535 Licenses
License Function
Restricted Software License Support for 512 MB of RAM and up to eight 10/100 interfaces
or eight Gigabit interfaces
Unrestricted Software License Support for 1 GB of RAM, up to 10 10/100 interfaces or 9
Gigabit interfaces, stateful failover, integrated VAC or VAC+,
and 50 security contexts
Failover Software License Support for a “hot standby” system designed to operate in
conjunction with an active system running the unrestricted
license
NOTE The installation of additional interfaces and failover requires that the software
license be upgraded from the Restricted Bundle.
NOTE The PIX 506E through 535 Firewall appliances all have an onboard USB port. At
this time, the USB port is not used.