We created an SNMPv3 profile and used it to model a device using the Model by IP functionality in Spectrum OneClick.
When the OK button is selected, a popup window appears stating the device is reachable via ICMP but not SNMP.
Running a sniffer trace on the SpectroSERVER system sniffing the ip address of the device being modeled showed the following response from the device:
usmStatsUnknownUserNames OBJECT-TYPE
SYNTAX Counter32 (0 .. 4294967295)
ACCESS read-only
STATUS current
DESCRIPTION
"The total number of packets received by the SNMP engine which were dropped because they referenced a user that was not known to the SNMP engine."
::= { usmStats 3 }
-- 1.3.6.1.6.3.15.1.1.3
Basically, the device is responding to the SNMPv3 request stating the user in the SNMPv3 profile is not recognized.
Release : Any
Component : Spectrum Discovery
Verify the user specified in the SNMPv3 profile is correct for the device being modeled.