No vpdn module for cisco 2921

[cr4zylemon]

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Component	Version
LibreNMS	a776ad5
DB Schema	182
PHP	7.0.15-0ubuntu0.16.04.4
MySQL	5.7.17-0ubuntu0.16.04.1
RRDTool	1.5.5
SNMP	NET-SNMP 5.7.3`

Hi everyone,

I would like to graph my ppp sessions via vpdn module, I saw that vpdn php file exists but I can't find it in poller/discovery module. Is it normal ?

Thanks in advance for help !

[laf]

You can try and $config['os']['OSNAME']['poller_modules']['cisco-vpdn'] = 1; in config.php - Replace OSNAME with the actual os, i.e ios, iosxe. Then wait 15 minutes and see if you see the data.

[cr4zylemon]

Ok I am trying your solution, where should I see the result appear ?

[laf]

A vpdn tab in the device.

If you don't, please post the output of ./poller.php -h HOSTNAME -d -r -f -m cisco-vpdn onto https://p.libren.ms

[cr4zylemon]

There is no vpdn tab :/

Here there is the output : https://p.libren.ms/view/4e4e061c

[laf]

Has it not appeared yet? If not, check if you have any vpdn-l2tp* files in the rrd folder for this device. If not please run rrdtool create /opt/librenms/rrd/pe1-qct29.in.izzycom.net/vpdn-l2tp.rrd --step 300 DS:tunnels:GAUGE:600:0:U DS:sessions:GAUGE:600:0:U DS:denied:COUNTER:600:0:100000 RRA:AVERAGE:0.5:1:2016 RRA:AVERAGE:0.5:6:1440 RRA:AVERAGE:0.5:24:1440 RRA:AVERAGE:0.5:288:1440 RRA:MIN:0.5:1:720 RRA:MIN:0.5:6:1440 RRA:MIN:0.5:24:775 RRA:MIN:0.5:288:797 RRA:MAX:0.5:1:720 RRA:MAX:0.5:6:1440 RRA:MAX:0.5:24:775 RRA:MAX:0.5:288:797 RRA:LAST:0.5:1:1440

[cr4zylemon]

I ran the command but after half an hour there is no vpdn tab yet
Here there is all the vpdn* file path on my server:
/opt/librenms/html/includes/graphs/device/vpdn_sessions_l2tp.inc.php /opt/librenms/html/includes/graphs/device/vpdn_tunnels_l2tp.inc.php /opt/librenms/includes/polling/cisco-vpdn.inc.php

[cr4zylemon]

And /opt/librenms/rrd/pe1-qct29.in.izzycom.net/vpdn-l2tp.rrd obviously

[geordish]

What user did you run as? Can you validate your install again?

If everything checks.out, and you still have no data, it might be worth running
./poller.php -h HOSTNAME -d -f -m cisco-vpdn
A
As the librenms user.

[cr4zylemon]

I ran as root but I didn't forget execute :
chmod 664 /opt/librenms/rrd/pe1-qct29.in.izzycom.net/vpdn-l2tp.rrd
chown librenms:librenms /opt/librenms/rrd/pe1-qct29.in.izzycom.net/vpdn-l2tp.rrd

Here the result : https://p.libren.ms/view/ee014b9e

[laf]

Can you provide the full output of ./poller.php -h HOSTNAME -d -r -f

[cr4zylemon]

Sure! https://p.libren.ms/view/0d44a3c8

[laf]

Sorry also needs: $config['poller_modules']['cisco-vpdn'] = 1; in config.php then re-run that last command.

[cr4zylemon]

No problem : https://p.libren.ms/view/20ab6722

[cr4zylemon]

Oh wait, vpdn just appeared. Looks like $config['poller_modules']['cisco-vpdn'] = 1; in config.php has unlocked the situation ! 👍

[laf]

Ok, we'll need to fix this permanently.

[cr4zylemon]

I have one more question. Currently, the vpdn module graphs the number of active sessions.
My question is : Is it possible to graph a virtual interface which is generated when a ppp session is going up ? And if possible, identified by their ppp login.

[laf]

Possible but you need to create a feature request for this: https://community.librenms.org/c/feature-requests

[cr4zylemon]

Created :)

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