How to add a modem to cacti by port 5000 rootDesc.xml

[peterskeetero]

Hi all,
I'm fairly new to cacti having only used traffic graphing on devices via snmp queries.
I just got a new modem (Technicolor TG800vac) and noticed that it doesnt have any SNMP options at all.
What I have found is that I can query traffic stats using the port 5000 uPnP features of the modem.
I have downloaded a windows app that shows me real time graphs of upload and download speeds.
I would still like to add this modem to cacti but not sure how to proceed..
If I browse to my modems http://host:5000/rootDesc.xml I get an xml file
that begins with this:


root xmlns="urn:schemas-upnp-org:device-1-0">
<specVersion>
<major>1</major>
<minor>0</minor>
</specVersion>
<device>
<deviceType>
urn:schemas-upnp-org:device:InternetGatewayDevice:2
</deviceType>
<friendlyName>Technicolor TG800vac (1639RA4KY)</friendlyName>
<manufacturer>Technicolor</manufacturer>
<manufacturerURL>http://www.technicolor.com/</manufacturerURL>
<modelDescription>Technicolor Internet Gateway Device</modelDescription>
<modelName>Technicolor TG</modelName>
<modelNumber>800vac</modelNumber>
<modelURL>http://www.technicolor.com/</modelURL>

...
..
<serviceList>
<service>
<serviceType>urn:schemas-upnp-org:service:WANIPConnection:2</serviceType>
<serviceId>urn:upnp-org:serviceId:WANIPConn1</serviceId>
<controlURL>/VUBfrgd/ctl/IPConn</controlURL>
<eventSubURL>/VUBfrgd/evt/IPConn</eventSubURL>
<SCPDURL>/VUBfrgd/WANIPCn.xml</SCPDURL>
</service>
</serviceList>


I'm not too familiar with this way of getting device info.
Has anyone added a device to cacti via this way. I cant believe I would be the first person to ask this question but I cant seem to find any other answers here.
Thanks,
Peter

[peterskeetero]

Ive managed to get some data out of the modem by using

http://ng-upnp2mrtg.sourceforge.net under linux.

The command I used is this (even though its a Telstra modem I chose nc_premium )

ng-upnp2mrtg.py -h 10.0.2.10 -t nc_premium -p 5000


It returns the up / down byte counts and uptime.

soooo... I guess the question is from a cacti point of view - how can I turn the above script into a cacti data source ??
I guess I will check the cacti docs for such mystical things..

[tertius]

You find the interface to your script in cacti's "Data Input Methods". Here you define scripts, their commandline parameters, and their return values.
Then you create a new data source template that uses this in the Data Input Method setting.

I did such a thing with a different device, an AVM FRITZ!Box. It's upnp-enabled as well, just as your modem. I use miniupnpc for querying it (will probably work for your device as well, upnp is a standard), parse its response and return the parsed response to cacti.
I attach the script and the template. It's possible that it will work for your device out of the box. You need miniupnpc, though.