[mrtg] target evaluated to xxx instead of a number

[Paul Kelly]

Hi,
I'm trying to run a very small mrtg config to monitor the SNR on my cisco 1721, but everytime i run mrtg i get the following error
 
ERROR: Target[snr][_in_] '.1.3.6.1.2.1.10.94.1.1.3.1. $target->[0]{$mode}' evaluated to ' xxxxxxx' instead of a number
ERROR: Target[snr][_out_] '.1.3.6.1.2.1.10.94.1.1.3.1. $target->[0]{$mode}' evaluated to ' xxxxxxx' instead of a number
 
Where 'xxxxxxx' are just symbols, smiley face etc.
 
This is the config i am using :
 
EnableIPv6: no
WorkDir: c:\mrtgweb
Target[snr]:.1.3.6.1.2.1.10.94.1.1.3.1.4:public at 10.0.0.1
Title[snr]: Cisco 1700 - SNR Analysis
Background[snr]: #ffffff
PageTop[snr]: <H1>Cisco 1700 - SNR Analysis</H1>
WithPeak[snr]: wmy
XSize[snr]: 500
YSize[snr]: 200
MaxBytes[snr]: 200000
Options[snr]: gauge, growright, nopercent
YLegend[snr]: SNR Value
ShortLegend[snr]: SNR
Legend1[snr]: Average
Legend2[snr]:
Legend3[snr]: Maximum
Legend4[snr]:
LegendI[snr]: &nbsp;Local SNR:
LegendO[snr]: &nbsp;Remote SNR:

As far as i can tell, i am using the correct oid according to
http://tools.cisco.com/Support/SNMP/do/BrowseOID.do?local=en&translate=Translate&objectInput=adslAturCurrSnrMgn
 
Can anybody shed any light on this?
 
Thanks in advance for any help.
 
Cheers
Paul
 
<http://2-m.deviantart.com/>  
 
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