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.
Release : Any
Component : Spectrum Discovery
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.
Verify the user specified in the SNMPv3 profile is correct for the device being modeled.