Only one of the two correct connection parameters can be correctly connected.

[haodayitiaoyu666]

We have two correct SNMPv3 protocol parameters A and B.
Invoke the snmp.Get interface.
Use the A to connect first，the correct result is obtained. Then use the B to connect second，the result is:
result &{Version:3 MsgFlags:1 SecurityModel:3 PDUType:168 RequestID:0 Error:NoError ErrorIndex:0 NonRepeaters:0 MaxRepetitions:0 Variables:[{Name:.1.3.6.1.6.3.15.1.1.6.0 Type:Counter32 Value:12}] SnmpTrap:{Variables:[] IsInform:false Enterprise: AgentAddress: GenericTrap:0 SpecificTrap:0 Timestamp:0}}
Use the B to connect first，the correct result is obtained. Then use the A to connect second，the result is the same

this is snmpV3 parameter

Below is the tcp dump. Any ideas why this might be happening?

[haodayitiaoyu666]

I find that only when PrivacyProtocol is AES-256 or AES-192 the error has occurred

[TimRots]

Hi @haodayitiaoyu666. Can you share what version of gosnmp you are on and, if possible, some code to reproduce the issue?
Thanks in advance.

[haodayitiaoyu666]

v1.34.0 has this problem.
I modified the following code and fixed the problem.

I wonder why an empty string is passed in here. @TimRots

[TimRots]

I wonder why an empty string is passed in here. @TimRots

Thank you. That doesn't seem right indeed. Will have a look at it.