Configure MRTG to get IPv4 usage statistics

Posted on 2011-02-19
Last Modified: 2012-05-11
Hello Experts.

I installed MTRG, but I need to configure it to collect statistics to be sent to RIPE, as shown in this example: 

The statistics should show the following:

•the IP capacity for each area/pool of IPs
•the IP usage for each area/pool of IPs (min/avg/max on a daily/weekly/monthly basis)

I have some subnet of IP addresses and to build the statistics, it is assumed that an IP address is used when responding to ping (echo-replay).

I think we can use nmap, changing the script in this example:

you can help me to edit the script?

Question by:usbano
  • 2
LVL 27

Accepted Solution

Nopius earned 500 total points
ID: 34942740

> I have some subnet of IP addresses and to build the statistics, it is assumed that an IP address is used when responding to ping (echo-replay).

Is it assumed by you or by RIPE?
I would suggest another definition is "IP if it reponds to TCP/UDP requests on any port, or it responds to ping or it initiates connections on any TCP/UDP port".

Most firewalled Windows just never respond to ping.

Modified script, that shows exact IP count (not %) is below. It is also faster.



nrup=`nmap -n --min-parallelism 150 --max-retries 1 --host-timeout 1501 -sP $nets 2>&- | grep "hosts up" | cut -d\( -f2 | cut -d" " -f1`

echo $nrup
echo 0

Open in new window


Author Comment

ID: 34972211

the script works!! I' put the script in, ad get this with mrtg.cfg

Target[xyz]:  `/opt/mrtg/`
MaxBytes[xyz]: 2000
Unscaled[xyz]: dwmy
Options[xyz]: growright,gauge,noinfo,nopercent
ShortLegend[xyz]: IP USAGE
Title[xyz]: % IP usage

In attachment a screenshoot of the statistics (daily).
Is possible to change "byte per seconds"  with "IP address" link this like: 



Author Comment

ID: 34974541
I'm resolved. The command is YLegend[xyz]: IP Address


Featured Post

Efficient way to get backups off site to Azure

This user guide provides instructions on how to deploy and configure both a StoneFly Scale Out NAS Enterprise Cloud Drive virtual machine and Veeam Cloud Connect in the Microsoft Azure Cloud.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Weird Samba Connectivity Issue... 7 53
SD - WAN 2 58
Windows Update Isn't working 41 170
laptop estate analysis 5 80
Trying to figure out group policy inheritance and which settings apply where can be a chore.  Here's a very simple summary I've written which might help.  Keep in mind, this is just a high-level conceptual overview where I try to avoid getting bogge…
This article offers some helpful and general tips for safe browsing and online shopping. It offers simple and manageable procedures that help to ensure the safety of one's personal information and the security of any devices.
Get a first impression of how PRTG looks and learn how it works.   This video is a short introduction to PRTG, as an initial overview or as a quick start for new PRTG users.
This video gives you a great overview about bandwidth monitoring with SNMP and WMI with our network monitoring solution PRTG Network Monitor ( If you're looking for how to monitor bandwidth using netflow or packet s…

827 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question