Hi all,

I've created a template to monitor dhcp usage using the dhcpd-snmp you can find at:

http://www.net-track.ch/opensource/dhcpd-snmp/

The perlscript creates a configfile for dhcpd-snmp from dhcpd.conf.

Please see if you like it.

CdG

<Sigh>

of course I forgot to include the snmp_queries xml-file.

I came a cross this post and was pleased to see some one made a nice .xml file for using the package dhcp-snmp. I haven't found anything else that could help me.



I downloaded the .xml file and tried importing it, cacti didn't show me the messages I was hoping to see "adding template ...", you probably know waht I mean.

I'm using the latest cact at the moment, which is 0.8.6h.

After some experimenting with the .xml file I finally noticed it's not a .xml template for a graph or data objects. It actually is a .xml "data query template" file. Which I placed at the <path_cacti>/resource/snmp_queries/ location and added it as a query file to cacti.

As you might have noticed I'm "new" to cacti, because I recently installed it and still getting new ideas to put into cacti.

I've been toying around with all kinds of different ways to get the info I wanted out of SNMP and finally managed to generate a nice graph.

I just finished the template and haven't had much testing yet.. The graph is included at this post.



I also included my graph template, so people who're interessted on this topic can try it out themselves. Maybe more experianced people could have a look at this and comment to this?

Before I forget: Tnx CdG for posting this .xml file, it did help me alot to go
investigate and understand cacti a bit more

,
DW

Hi!

I checked out your template and modified it, so that all data sources are put together in one template. IMHO it is a little bit more handy.

Now you can create more pools in dhcpd-snmp.conf and when creating graphs, a list of available pools is autocreated by get-snmp-data (indexed).

Fhuber

Ok, I am trying this out.

I have the snmp part working fine, but I am a little confused on which xml file goes where...

Does the xml file inlcluded in the zip go under <cacti>/resource/snmp_queries ? that is where I put it.
and which of the posted xml files needs to be imported? I imported the last one for multple scopes without any problems.
Also, do I need to spec any custom data when creating the graph (OID, etc...)
So far this is what I get with graph debugging on


No entries in cacti.log, but I need to bump up the logging level and check again

This is a really awesome script and we could definately make use of it, but not quite there yet..

thanks for your help

Same problem here, I put the first .xml in the path dw specified but can't import the template egarnel or fhuber made, but thank you for the files, nice work.

i'm having problems installing the dhcpd-snmp script.
when i test it :

[root@devbox]# dhcpd-snmp dhcpd-snmp.conf
PING
PONG
get
.1.3.6.1.4.1.21695.1.2.1
NONE

from the readme it says i should be getting three lines: the OID, ``integer'', and the number of configured pools.

thanks.

Hello,

Does anyone know which values I must put in 3 custom fields :

Index Type
Index Value
Output Type ID

Seems that without this values the template can't works ...

Regards

OK, I realise that my original post was a bit premature.

I've created a graph and host template to go with it.

Good luck!

Under the data template, you have the Max value set to 254. This is great if the lease is for a 24bit subnet, but I have a 16 bit subnet dhcp scope being dished out from the same dhcp server as well.

I can duplicate the templates and mod the new one for the 16 bit graph and use seperate templates for the different scopes, but I was wondering if there is an easier way? Perhaps make use of the "Use Per-Data Source Value (Ignore this Value)"?

Either way, I have graphs now. Thank you for providing this template.

same question here

Couldn't figure out why this was working on 1 dhcp server but not the other...

a quick look at /var/log/messages showed that selinux was blocking it.

a quick "setenforce Permissive" fixed it. I will go back and edit my policies to add the script

great job!
working perfect
mv xml to snmp_queries import other one graphing
thx!

This Max value is in the graph template posted by fhuber. The one in the zipfile I posted only has a Max value for expired leases, which I currently do not graph. But I agree: the 'Per-Data Source Value' might be better.

CdG

I am trying to follow the direction on how to import this into my cacti but it is just not working.. is there a how-to guide on proper importing of these scripts/ templates...

I keep getting this error msg:

Warning: file(c:/Inetpub/wwwroot/cacti/resource/snmp_queries/dhcpd-snmp.xml) [function.file]: failed to open stream: Permission denied in c:\Inetpub\wwwroot\cacti\lib\data_query.php on line 79

Warning: implode() [function.implode]: Bad arguments. in c:\Inetpub\wwwroot\cacti\lib\data_query.php on line 79

please note my dhcpd is a win2k3 server.