ECE495 Chapter Notes - Chapter 1: Data Link, Access Control List, Hostname
6 Apr 2016
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Document Summary
The operating system for cisco pix/asa firewalls is known as the pix os. Because the pix product line was acquired and not originally developed by. Cisco, pix os versions up to 6. 0 featured a command-line interface that was similar to, but not exactly like, the cisco ios. Cisco blended features from the cisco ios and pix os to form pix os 7. 0. While pix os 6. 0 (and prior) and pix os 7. 0 are similar, there are key differences, which will be reflected in this guide. Cisco asa firewalls support pix os 7. 0 exclusively. As with the cisco router ios, there are various modes in the pix os cli, each of which contains a set of commands specific to the function of that mode. By default, the first mode you enter when logging into the pix os is user mode. User mode appends a > after the device hostname: pixfirewall> No configuration can be changed or viewed from user mode.
