Nagios Support Forum

Posted: **Wed Aug 26, 2015 3:18 am**

Hi

We received this morning a strange SMS message from NagiosXI

Aug 26 03:03:55 nagiosxi nagios: SERVICE ALERT: Cod-wan-fw2;Ping;WARNING;HARD;1;PING WARNING - DUPLICATES FOUND! Packet loss = -233%, RTA = 0.32 ms

The percentage of losses -233%, is how to understand? Network loops were not find. Duplication of IP addresses too.
This is a bug? Has anyone encountered such a case?

Command checking service

Code: Select all

$USER1$/check_ping -H $ARG1$ -w 3000.0,70% -c 5000.0,90% -p 10

$ARG1$ - IP address

Posted: **Wed Aug 26, 2015 10:04 am**

It's unlikely that it's a problem with the plugin. I'm not saying it's impossible, but it's unlikely. Every second that plugin is probably run over 100,000 times on planet Earth, do you think it's likely that we'd encounter other people with the same symptom if there was a problem with the plugin?

How are you validating that there are no duplicate IPs? I notice this appears to be a firewall, is it possible that it's running CARP or some other load balancing/failover network protocol that could be producing duplicate responses?

Posted: **Thu Aug 27, 2015 9:53 am**

Hi
Close the topic, i think difficult to find the cause. These two firewall - checkpoints. Viewers logs them - finding swearing on double IP and not found.

Thx

Nagios Support Forum

PING WARNING - DUPLICATES FOUND!

PING WARNING - DUPLICATES FOUND!

Re: PING WARNING - DUPLICATES FOUND!

Re: PING WARNING - DUPLICATES FOUND!