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I have installed CSPC 2.8.1 for a customer and they are experiencing an isssue where the CSPC is configured to use 'Priv Auth' but the devices are reporting the connection attempt is being made using "No Auth"
The Auth algorithm is using SHA and the privacy password is using AES-128.
The devices have been discovered using IP address and the SNMP security level on the switch is set to "Priv".
Can anbody assist in what would cause a device to report an SNMP connection attempt being made using 'no auth' when the collector is set to use 'Priv Auth'?
I have asked the customer to confirm the switch IOS versions and am awaiting a response. Any help in the mean time would be appreciated.
Can you please share logs or screenshots of the switches reporting the SNMP connection attempts as "No Auth"? Can you also please share screenshot of the SNMPv3 credential configuration in the collector.
Hi Brandon. Please see the switch debug below:
Dec 27 2018 15:03:46.097 gmt: SNMP: Packet received via UDP from X.X.X.X on TenGigabitEthernet1/1/3
Dec 27 2018 15:03:46.098 gmt:
Incoming SNMP packet
Dec 27 2018 15:03:46.098 gmt: v3 packet security model: v3 security level: noauth
Dec 27 2018 15:03:46.098 gmt: username:
Dec 27 2018 15:03:46.098 gmt: snmpEngineID: 80000009030000425A434F00
Dec 27 2018 15:03:46.098 gmt: snmpEngineBoots: 0 snmpEngineTime: 0
Dec 27 2018 15:03:46.098 gmt: SNMP: Report, reqid 0, errstat 0, erridx 0
usmStats.4.0 = 258
The switches experiencing issues are:
WS-3850-12S (IOS Version 03.06.06E)
2960X (IOS Version 15.2(2)E6)
From the collector CLI can you attempt an snmpwalk to see if it is successful
snmpwalk -v3 -l authPriv -u <USERNAME> -a sha -A <AUTHPASSWORD> -x aes -X <PRIVPASSWORD> <IPADDRESS> system
On Further investigation we believe it may be due to the use of special characters in the SNMPv3 password. Can anybody confirm if there are any issues with the use of special characters for SNMPv3?
Philip -- I have lab devices running v3 with special characters in the password and have no issue managing them with CSPC. If you are getting a failure doing the snmpwalk you can try escaping the characters.