Read the INSTALL documentation
Download Pixie 0.99 beta
Abstract:
PIXie is a log analysis tool for Cisco PIX firewalls and routers. It offers interactive, web-based drill-down viewing of denied packet reports, as well as rudimentary port scan detection and multiple-device analysis.
At the time of this writing, PIXie only handles IP packets that have been denied and that have produced log entries. The rest, is up to you.
Warning:THIS IS BETA SOFTWARE.
This software is very very rough, and highly experimental. It's also not as secure as I would like it to be, and it'll probably break, but here it is anyhow. All that I ask is that you respect the copyright and don't try to profit from this code.