Weird issue with check_ping

[Kevin Keane]

I've seen this happen when ping returned an error. In my case, it was 
actually ping6 because it had a bad IPv6 address configured.

Since it's intermittent in your case, most likely the root cause is 
something else, but ping is still returning an error. If I had to 
venture a guess, maybe it's "destination unreachable" - which would 
indicate a real problem in your network. If 10.1.1.1 is on a different 
subnet, it would be a routing issue. If it's on the same subnet, it's 
probably an ARP resolution issue.

But all that is guesswork. You'd have to catch ping in the act and see 
what it really returns. I don't see any options in check_ping that could 
give you that information, but maybe you can write your own shell script 
that watches for ping error messages and logs them or reports them as 
check results.

Shon Elliott wrote:
> occasionally, I'll get a response that flags nagios to go critical:
>
> 	/sbin/ping -n -c 5 10.1.1.1
> CRITICAL - Could not interpret output from ping command
>
> This happens maybe once or twice a day. Is it getting confused with
> something else?
>
> It doesn't seem to happen on any consistant basis, or with any
> particular host we are monitoring, and does not appear that the host has
> stopped responding via a normal ping when this happens.
>
>
> Regards,
> Shon Elliott
> Senior Network Engineer
> unWired Broadband, Inc.
> Office: (559) 261-4444 x 511
> Cell: (559) 917-6480
>
>
>
>
>
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