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SNMP v3 Cisco C9300-48U

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  • TH001
    Junior Member
    • Dec 2023
    • 6
    #1

    SNMP v3 Cisco C9300-48U

    I have been searching all over and various forums to see if anyone has got SNMP v3 working with Cisco C9300-48u switch, so far I cannot find any success stories.

    Is there anyone who has this working? Have you got your Zabbix monitoring Cisco C9300 (or C9400) switches using SNMP v3 successfully?

    Version 2 is straight forward but v3....why is it so difficult? ...unless I'm missing something?

    If you do have it working, could you please let me know how, it really would be a big relief
    Tags: None
    • cyber
      Senior Member
      Zabbix Certified SpecialistZabbix Certified Professional
      • Dec 2006
      • 4807
      #2
      What is it, that does not work out ? Considering v2 and v3 from contents point of view are same, v3 just adds a layer of security, it should not be rocket surgery? If it is a relief for you, I can say it works for us... I did not do it.. did not touch any switch nor did configure any template. Our network people did it by themselves...

        Comment

        • TH001
          Junior Member
          • Dec 2023
          • 6
          #3
          When I enter the below SNMP v3 config on the Cisco C9300 switch the 'SNMP Availability' status (under Monitoring >> Hosts turn Red and no data is pulled from the switch to Zabbix. The moment I change to SNMP v2 the SNMP Availability status changes to green and all data is pulled through.

          snmp-server group <group name> v3 priv read <view name>
          snmp-server user <snmp user> <group name> v3 auth sha <auth pw> priv aes 256 <priv pw>
          snmp-server view <view name> iso included
          ​
          On Zabbix :
          Context Name: blank
          Security name: <snmp user>
          Security Level: authPriv
          Authentication Protocol: SHA1
          Authentication Password: <auth pw>
          Privacy Protocol: AES256
          Privacy Passphrase: <priv pw>

          Under Data Collection >> Hosts the error message says 'Timeout while connecting to <ip address of switch:161>

          There is no firewall or access-list on the switch. So what did you do to make it work on SNMP v3? what switch model are you using?

            Comment

            • TH001
              Junior Member
              • Dec 2023
              • 6
              #4
              Also I have similar setting on Solarwind for v3 and it works with no issues.

                Comment

                • cyber
                  Senior Member
                  Zabbix Certified SpecialistZabbix Certified Professional
                  • Dec 2006
                  • 4807
                  #5
                  From command line with snmpwalk it also fails? Do you have time sync in place, it is very important for v3 to have all times in sync.

                    Comment

                    • TH001
                      Junior Member
                      • Dec 2023
                      • 6
                      #6
                      Yes snmpwalk also times out on v3 (v2 is good). I'll check time sync. Also tried changing Engine ID to make sure.

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