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SNMP with PRTG

DarshilDarshil Newbie ✭
in Mid Range Firewalls

Hi team,

We configured SNMP on firewall andadded it on PRTG application. Device monitoring was working for 2 days and then it stopped showing.

On the prtg application it shows "Error: No response (check: firewalls, routing, snmp settings of device, IPs, SNMP version, community, passwords etc) (SNMP error # -2003)"

'Increase SNMP subsystem priority' checkbox is enabled as suggested in KB.

PRTG.PNG


Category: Mid Range Firewalls
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Answers

  • SaravananSaravanan Moderator

    Hi @DARSHIL,

    Thank you for visiting SonicWall Community.

    Please check for possible errors related to SNMP in the SonicWall GUI logs. Please take a screenshot and add it here in the post. Let me take a look.

    Regards

    Saravanan V

    Technical Support Advisor - Premier Services

    Professional Services

  • DarshilDarshil Newbie ✭

    Hi @Saravanan ,

    I did not find any error logs in the GUI.

  • SaravananSaravanan Moderator

    Hi @DARSHIL,

    We may need to perform a packet capture on the SonicWall SNMP (UDP 161, 162) to understand if SonicWall responds or drops the SNMP polling requests from the SNMP tool.

    https://www.sonicwall.com/support/knowledge-base/how-can-i-setup-and-utilize-the-packet-monitor-feature-for-troubleshooting/170513143911627/


    Regards

    Saravanan V

    Technical Support Advisor - Premier Services

    Professional Services

  • DarshilDarshil Newbie ✭

    Hi @Saravanan

    On Packet capture i could only find consumed and generated packets.

    But somehow the sensor is added on PRTG, now all the interfaces that i have added are fluctuating every few minutes, whereas other firewall sensors like HTTPS, SSL, etc shows green.

    I also have a cisco L3 switch added on PRTG, it shows no such problems.

  • DarshilDarshil Newbie ✭

    Hi

    On Packet capture i could only find consumed and generated packets.

    But somehow the sensor is added on PRTG, now all the interfaces that i have added are fluctuating every few minutes, whereas other firewall sensors like HTTPS, SSL, etc shows green.

    I also have a cisco L3 switch added on PRTG, it shows no such problems.

    Any suggestions?

  • JasonCJasonC Newbie ✭

    I too am having these SNMP issues with PRTG monitoring my company's NSA firewalls. Any feedback as to what the issue is?

  • AjishlalAjishlal Community Legend ✭✭✭✭✭

    Hi @Darshil

    Check your SNMP configuration is correct in SonicWall as well as check the PRTG hosted system can be reach the Firewall.

    image.png

    I used PRTG sensor for "SonicWall System Health" & its working fine.

    image.png
    image.png


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