Provided by: mrtg-ping-probe_2.2.0-2_all bug


       mrtg-ping-probe - ping probe module for Multi Router Traffic Grapher


       mrtg-ping-probe is a ping probe module for MRTG 2.x.  It is used to monitor the round trip
       time and packet loss to networked devices.  MRTG uses the  output  of  mrtg-ping-probe  to
       generate graphs visualizing minimum and maximum round trip times or packet loss.

       mrtg-ping-probe  is  not  run directly, but is called by MRTG as a helper when it needs to
       determine ping time to a host.

       Act  responsibly:  do  not  use  mrtg-ping-probe  to  ping  devices  without  the  owner's
       permission.  Just imagine if 10,000 people decided to ping your hosts!  mrtg-ping-probe is
       meant to be used within your network to get round trip time performance figures  for  your


       To use mrtg-ping-probe you need to configure MRTG to call it from within the definition of
       a target host. This is done in the MRTG config file, which is usually /etc/mrtg.conf.

       Here's an example snippet: change the target name and IP address to suit your needs.

       Target[]: `/usr/bin/mrtg-ping-probe 123.456.789.123`
       SetEnv[]: MRTG_INT_IP="123.456.789.123" MRTG_INT_DESCR="ping"
       MaxBytes[]: 100
       AbsMax[]: 200
       Options[]: gauge, growright
       YLegend[]: ping time (ms)
       ShortLegend[]: ms
       Legend1[]: Maximum Round Trip Time in ms
       Legend2[]: Minimum Round Trip Time in ms
       Legend3[]: Maximal 5 Minute Maximum Round Trip Time in ms
       Legend4[]: Maximal 5 Minute Minimum Round Trip Time in ms
       LegendI[]:  Max:
       LegendO[]:  Min:

       Pay close attention to the backticks in the first line which  tell  MRTG  to  execute  the
       nominated  external  program. Note also that you need to use the "gauge" option, since the
       results of subsequent ping probes are independant values and not an incrementing counter.



       The   latest   release   of   mrtg-ping-probe   can   be   found    on    the    web    at


       This  manual  page  was  written by Jonathan Oxer <>, for the Debian project
       (but may be used by others).

                                          April 14, 2003                       MRTG-PING-PROBE(1)