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Using SNMP to grab a string value?



I would like PRTG to use SNMP to grab a string value from a specific OID. I have it setup as a custom SNMP sensor, but the device is returning a 'non-integer error'. Is there a way for PRTG to grab a OID that carries a string value?

oid prtg snmp string

Created on Mar 18, 2010 9:54:00 PM

Last change on Mar 19, 2010 9:33:06 AM by  Daniel Zobel [Product Manager]

3 Replies

Accepted Answer



Yes, this is possible. For SNMP string values, there is a special sensor available.

In PRTG's web interface, add a new sensor and select SNMP | SNMP Custom String.

Created on Mar 19, 2010 8:08:41 AM by  Aurelio Lombardi [Paessler Support]

Last change on Mar 19, 2010 9:32:57 AM by  Daniel Zobel [Product Manager]



How does this work? I add custom string and it monitors wether specific custom string is returned or not. That's not what I need. I need to extract integer information from string and chart based on that information. So I need to extract "25" from "25 Centigrade" and cast it to integer and then make chart based on those values on each polling interval. Is it possible?

Created on Apr 13, 2010 4:02:19 PM




I'm afraid it's not possible to 'extract' a number from a String monitored with SNMP. You may be able to do this using a custom script, which requests the string, and only passes on the number to PRTG.

Best Regards.

Created on Apr 13, 2010 4:21:03 PM by  Torsten Lindner [Paessler Support]

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