Cisco Security Appliance
The console connection for the PIX 525 is the same as for the PIX 506E, 515E, and 535.
The three licenses available for the PIX 525 Firewall are similar to those available for the PIX
515E but support a greater amount of RAM and more available physical interfaces.
Upgrades are available to increase the number of supported physical interfaces or to
implement VPN hardware (VAC/VAC+) support. Table 3-5 describes the available licenses
and their functions.