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Juniper MX104 Router SNMP Sensors Difficulties



I am working on a project with requirements of creating PRTG sensors to monitor router interfaces status including in/out throughput, error rate and interface status (up/down).

I can do snmpwalk to scan the interfaces and it returns results.

But I am struggling creating PRTG sensors and have tried SNMP Traffic/JFlow v5/JFlow v5 (custom)/SNMP Library(download the Juniper MIB online for Interfaces)/SNMP custom/SNMP custom table.

None of above worked for me.

BTW, we also have Solarwinds and Splunk, no issues with this at all.

Please advise.

juniper prtg snmp-sensor

Created on Jun 23, 2021 1:46:44 AM

3 Replies




Did you use our SNMP Tester to query the target device?
Are you able to add the SNMP Traffic sensor to the device, or do you get a error? If so, what error do you get?

Kind regards,
Sasa Ignjatovic, Tech Support Team

Created on Jun 28, 2021 7:02:03 AM by  Sasa Ignjatovic [Paessler Support]



Hi @Sasa, Thanks for your reply.

I did use SNMP Tester and was able to do snmpwalk to poll data from the routers, also able to use Custom OID: to poll required interface details as well.

But I am not able to setup any PRTG sensors even with SNMP Custom/Table, Error -2011.

I have been checking/confirming the settings for weeks and made sure they are all accurate.

What is also strange is that I am not able to capture any SNMP request coming out from PRTG using Wireshark. - I am able to capture other SNMP traffic from PRTG except for these two IP addresses.

Firewall shows no SNMP traffic either, and I am able to ping or ICMP monitoring the routers via PRTG>

We are paid license customer and username email is [email protected].

Please advise.

Created on Jun 29, 2021 6:05:57 AM



Hello Bowen,

What SNMP version is configured in the device?
What PRTG version are you using?

Kind regards,
Sasa Ignjatovic, Tech Support Team

Created on Jun 30, 2021 7:42:13 AM by  Sasa Ignjatovic [Paessler Support]

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