I just configured a new ASA 5520 running 8.0(4) with a fairly simple setup.
For several weeks the only usage for it was B2B http requests going from Gi0/1 to Gi0/2. Fairly low bandwidth, around 150Kb/s. Never a problem.
Yesterday I created on Gi0/0, 3 subinterfaces for Inside/Outside/Dmz.
The Outside has a public Internet IP.
It works great, I can see over 18Mb/s of traffic on the interface.
BUT every 2 or 4 hours the ASA will reboot or even freeze.
The config seems pretty straight forward.
From what I see in ADSM at the time of the crash the CPU usage is pretty low (<5%), as well as memory (100MB).
The first connection I witnessed I was having 600 connections, which was the higher number so far.
Any idea of the root cause ?
How can I troubleshoot that problem ?