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02-27-2024 04:27 AM
Solved! Go to Solution.
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LAN Switching
Accepted Solutions
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07-03-2024 06:26 AM
Firewall Blocking SNMP port from DNAC

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02-27-2024 05:33 AM - edited 02-27-2024 05:34 AM
the message is clear enough, the snmp-credentials are invalid!
=> check if the snmp-credentials in DNAC match with those configured on the switch
when adding the device to DNAC you specify CLI credentials, and snmp credentials
both default to globally defined credentials, but you may need to select snmpv3 instead of snmpv2 (as default)
you can "validate credentials" before adding the device,
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04-11-2025 12:53 PM
The same credentials work on other switches in the site and with other location switches but fails on 2 switches only
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02-27-2024 03:57 PM
Not sure if you hitting the bug CSCvr50499, if is a C9300 in stack and the stack master changed, then is this one. You must re-apply the SNMP config on the Switch, reload it and apply the SNMP again on the DNAC.
Please mark it as Helpful and/or Solution Accepted if that is the case. Thanks for making Engineering easy again.
Connect with me for more on Linkedin https://www.linkedin.com/in/rubencocheno/
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02-27-2024 11:09 PM
I can't reload the switch (production) and I reconfigured the SNMP , but still authentication Failuer
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03-04-2024 11:18 AM
Just relayed what the bug says, so you might want to do it on your next maintenance window.
Please mark it as Helpful and/or Solution Accepted if that is the case. Thanks for making Engineering easy again.
Connect with me for more on Linkedin https://www.linkedin.com/in/rubencocheno/

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03-04-2024 11:48 PM
you can run a "debug snmp" on the switch then try to add the switch in DNA
and collect the logging. you may find some clues there
you can also attach the logging to this post so we can help
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07-03-2024 06:26 AM
Firewall Blocking SNMP port from DNAC
