Trouble configuring a remote host to be monitorized on cacti

Hi there!

I'm writing to this list because I'm trying to configure cacti for 
monitoring remote hosts and I'm having some trouble configuring it. Both 
hosts are Ubuntu 12.04 distribs.

On the server side, I did a very standard installation, via apt-get and 
changed just the necessary params, for example, setting spine as poller, 
verifying paths, etc.

On the client side I followed this manual: 
http://www.debuntu.org/how-to-monitor-your-servers-with-snmp-and-cacti

So, on the server I had the client to be monitorized, and although the 
host is "Up", the graphs are blank (I see the reference system, but 
nothing drawn on it).

Checking logs I see something like this (192.168.0.17 = client's IP):

06/29/2012 09:15:53 PM - CMDPHP: Poller[0] WARNING: SNMP Get Timeout for 
Host:'192.168.0.17', and OID:'.1.3.6.1.2.1.2.1.0'

"snmpwalk -v 1 -c public udp:192.168.0.17:161" is ok, but the following 
command fails:

root@cacti:/etc/snmp# snmpget 192.168.0.17 -c public .1.3.6.1.2.1.2.1.0 -v 1
Error in packet
Reason: (noSuchName) There is no such variable name in this MIB.
Failed object: iso.3.6.1.2.1.2.1.0

Any ideas of what am I doing wrong?

Thank you very much!

Nicolás

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