09-27-2017 07:52 AM - edited 03-01-2019 06:09 PM
My PI appliance ver 3.0 fails SNMPV3 authpriv credential verification for C3750V2 FS switches, SSH CLI and ping are successful. I have another c3750V2 FS switch IOS 15.02.SE10a which the PI appliance can successfully connect and poll SNMPV3. For my C3750V2 FS switches IOS 15.0.2.SE10a having stacked switches attached to a Master, using the same SNMP configuration as the stand alone for PI and switch, as I SYNC or do Verifying Credentials, I get the pop up message "Check whether the SNMPV3 credentials are valid" (I believe they are)
Here is the switch config being used:
snmp-server user <user name> campusgroup v3 auth sha <pass phrase> priv aes 128 <pass phrase> access 12 (ACL 12 permits the PI host)
snmp-server group campusgroup v3 auth read campusview access 12
snmp-server group campusgroup v3 auth context <management VLAN> read campusview access 12
snmp-server view campusview internet included
snmp-server view campusview interfaces included
snmp-server view campusview system included
snmp-server trap-source <management VLAN>
snmp-server enable traps license
As best I can determine the only difference is one switch is in a stacked mode the other stand alone
the stand alone being the switch that works. Any help/suggestions greatly appreciated
Solved! Go to Solution.
10-03-2017 01:43 PM
My 3750V2 stacked switches are now communicating after numerous tries removing and reapplying
snmp-server configs using a general no snmp-server negate command I instead negated each line and then reapplied. Prime then SNMP discovered and started polling the devices
no snmp-server user <user name> campusgroup v3 auth sha <pass phrase> priv aes 128 <pass phrase> access 12 (ACL 12 permits the PI host)
no snmp-server group campusgroup v3 auth read campusview access 12
no snmp-server group campusgroup v3 auth context <management VLAN> read campusview access 12
no snmp-server view campusview internet included
no snmp-server view campusview interfaces included
no snmp-server view campusview system included
no snmp-server trap-source <management VLAN>
no snmp-server enable traps license
!
snmp-server user <user name> campusgroup v3 auth sha <pass phrase> priv aes 128 <pass phrase> access 12 (ACL 12 permits the PI host)
snmp-server group campusgroup v3 auth read campusview access 12
snmp-server group campusgroup v3 auth context <management VLAN> read campusview access 12
snmp-server view campusview internet included
snmp-server view campusview interfaces included
snmp-server view campusview system included
snmp-server trap-source <management VLAN>
snmp-server enable traps license
10-01-2017 02:06 PM
is the user in the "snmp-server user....." statement a local user account?
you could enable snmp debugging and monitor the output.
10-03-2017 01:43 PM
My 3750V2 stacked switches are now communicating after numerous tries removing and reapplying
snmp-server configs using a general no snmp-server negate command I instead negated each line and then reapplied. Prime then SNMP discovered and started polling the devices
no snmp-server user <user name> campusgroup v3 auth sha <pass phrase> priv aes 128 <pass phrase> access 12 (ACL 12 permits the PI host)
no snmp-server group campusgroup v3 auth read campusview access 12
no snmp-server group campusgroup v3 auth context <management VLAN> read campusview access 12
no snmp-server view campusview internet included
no snmp-server view campusview interfaces included
no snmp-server view campusview system included
no snmp-server trap-source <management VLAN>
no snmp-server enable traps license
!
snmp-server user <user name> campusgroup v3 auth sha <pass phrase> priv aes 128 <pass phrase> access 12 (ACL 12 permits the PI host)
snmp-server group campusgroup v3 auth read campusview access 12
snmp-server group campusgroup v3 auth context <management VLAN> read campusview access 12
snmp-server view campusview internet included
snmp-server view campusview interfaces included
snmp-server view campusview system included
snmp-server trap-source <management VLAN>
snmp-server enable traps license
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