[c-nsp] Self rebooting pix?

[Walter Keen]

We had a similar problem with a PIX-525 (or was it the 520....) with 
6.3, We assumed it was hardware issues and replaced it, but if you have 
a computer you can stick on the console port, and have it's terminal 
program log everything to a file, it may provide more information.

Scott Granados wrote:
> Hi All,
> I'm having a strange problem and not much diagnostic output so maybe I 
> can get some pointers as to what to look at next.
>
>    I have a Pix 501 with a non restrictive license that I'm using as a 
> general firewall and nat device.  There's a 10 megabit ethernet 
> connection handing a statically routed Internet feed on the WAN side 
> and a 100 megabit fast E which connects to a core switch.  We nat 
> probably about 50 - 100 users at a time and the throughput over the 
> public pathway is less than 8 megabits for the most part and generally 
> stays around 3 - 5.  The output of show cpu usage shows a usage of 
> between 10 and 20 percent with lows of 4% and highs around 25.
>    Randomly through out the day the connection / device will hang, the 
> switch it's attached to shows the ethernet port go down and come back 
> up a few times then packets start to flow again.  After the most 
> recent event I did a show ver on the Pix and saw that the uptime was 
> less than 2 minutes. After each drop this counter returns to 0 which 
> tells me the Pix is rebooting for some reason.  Show log doesn't yield 
> anything interesting and the syslog server that captures the log 
> output doesn't have any messages around the time of the outages 
> either.  Total traffic disruption lasts for approximately 30 seconds.  
> The time of day is random and it does not seem to increase in 
> frequency with bursts in traffic.  I've obviously checked and insure 
> that the power cables are firmly attached and the network cables are 
> securely attached as well.  What other things should I try?  Are there 
> any other show commands that might yield some more clues?  Has anyone 
> else experienced this.  The software rev is 6.3.
>
> Thanks
> Scott
>
>
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-- 


Walter Keen
Network Technician
Rainier Connect
(o) 360-832-4024
(c) 253-302-0194