Technical Tip: How to fix 'Error: GetNext returned same OID' error for PRTG tool.
Description
When adding a SNMP sensor in the PRTG tool for interface monitor.
When entered the OID it returns the below output:
Solution
First, understand what the OID means.
Example: OID: 1.3.6.1.2.1.31.1.1.1.1.16.
The value 16 is the value of 'snmp-index' of an interface.
the method GetNext is used, which means requesting for the next interface value which will be 'interface with 'snmp-index 17'.
Output for reference.
If there is another interface with same 'SNMP-index' just change it to something else and try creating the sensor again from PRTG tool.
Commands to change the 'SNMP-index'.
When adding a SNMP sensor in the PRTG tool for interface monitor.
When entered the OID it returns the below output:
This article describes how to fix this error.
Solution
First, understand what the OID means.
Example: OID: 1.3.6.1.2.1.31.1.1.1.1.16.
The value 16 is the value of 'snmp-index' of an interface.
the method GetNext is used, which means requesting for the next interface value which will be 'interface with 'snmp-index 17'.
Output for reference.
edit "Rel PRI-P2P"To fix the issue, check if there is no other interface with same SNMP index value.
set vdom "root"
set ip 172.17.x.x 255.255.x.x
set allowaccess ping https
set status down
set snmp-index 17
set interface "port2"
set vlanid 20
If there is another interface with same 'SNMP-index' just change it to something else and try creating the sensor again from PRTG tool.
Commands to change the 'SNMP-index'.
# config system interface
edit <interface name>
set snmp-index <value>