[Nagiosplug-devel] check_ping plugin is not processing the -p option properly

[Olli Hauer]

> I did some troubleshooting and found the following.
> 
> -t option controls the actual -w option for /bin/ping
> 
> if you add -t option in check_ping plugin then it add the -w option in
> /bin/ping command.  If we don't put -t option then it automatically adds
> -w
> option with default 10 value
> 
> 
> so if we do '/bin/ping -n -U -w 10 -c 1 host A' the following is the
> output
> 
> 
> PING host A (x.x.x.x) 56(84) bytes of data.
> 64 bytes from 128.59.60.22: icmp_seq=4 ttl=59 time=2.95 ms
> 
> --- unixrack5-ups1.cc.columbia.edu ping statistics ---
> 4 packets transmitted, 1 received, 75% packet loss, time 3002ms
> rtt min/avg/max/mdev = 2.952/2.952/2.952/0.000 ms
> 
> 
> however if you do '/bin/ping -n -U -c 1 host A' we get the following
> output
> 
> PING host A (x.x.x.x) 56(84) bytes of data.
> 
> --- unixrack5-ups1.cc.columbia.edu ping statistics ---
> 1 packets transmitted, 0 received, 100% packet loss, time 0ms
> 
> 
> 
> Would it be possible not to add the -w option by default.  Please advise
> on
> this.  Thanks
> 
> 
> P. S -  I am running rhel  5 with kernel version 2.6.18-128.2.1.el5
> 
> 
> 
> 
> 
> 
> On Wed, Aug 19, 2009 at 11:57 AM, shadih rahman <shadhin71 at gmail.com>
> wrote:
> 
> > All,
> >     I have noticed that check_ping plugin is not processing the -p
> option
> > properly.
> >
> > I have the following command definition
> >
> > define command{
> >         command_name    check-host-alive
> >         command_line    $USER1$/check_ping -H $HOSTADDRESS$ t 45 -4 -w
> > 3000.0,100% -c 3000.0,100% -p 1
> >         }
> >
> >
> > ./check_ping -H Hos A -p 1 -t 45 -4 -w 2000.0,30% -c 3000.0,40%
> > PING CRITICAL - Packet loss = 50%, RTA = 2.50
> > ms|rta=2.498000ms;2000.000000;3000.000000;0.000000 pl=50%;30;40;0
> >
> >
> >
> >
> > If I am sending 1 packet, how is it possible to receive 50% packet loss.
> > Please advise on this.  Thanks
> >
> >


Take a look into check_icmp.
I think after swapping you don't look back

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