Unable to receive SNMPv3 traps

[lextudio-support]

Hello,

I'm trying to implement SNMPv3 trap functionality for agent and management station. In this case it's just the adapted sample snmpd and snmptrapd applications while evaluating.

The whole process gets aborted while the incoming trap message is being processed at SecureSnmpContext.cs:192 where the check for presence of the Reportable flag in the received trap message fails:

if ((user.ToSecurityLevel() | Levels.Reportable) != request.Header.SecurityLevel)
{
  HandleFailure(Group.UnsupportedSecurityLevel);
  return false;
}

And Wireshark tells me this via the telegram info:

report SNMP-USER-BASED-SM-MIB::usmStatsUnsupportedSecLevels.0

According to RFC 3412 section 6.4 the Reportable flag must never be set for SNMPv2 trap PDUs. Can you please give some hints on how to implement SNMPv3 trap reception correctly using #SNMP?

By the way, the library's assembly version is 8.9.010914.01.

Thanks a lot, Kristian Virkus

Original Reported Date: 2015-09-14T02:01:27.067-07:00 Planned For Release:

Original CodePlex ID: 7281

[lextudio-support]

Copied from CodePlex without authors:

https://github.com/lextm/sharpsnmplib/commit/c55d7a46eec74bf78182b8085af7f6e6317374e0

Fixed here.

Original Posted Date: 2015-09-18T22:06:41.183-07:00

[lextudio-support]

Original Closed Date: 2015-09-18T22:06:50.933-07:00