[AGENT++] Problem using net-snmp as subagent (Error in packet)

[Johnny Ljunggren]

Hi

It seems that NET_SNMP_WORKAROUNDS is enabled by default, so I have it
activated. Luckily I'm not running on a 64bit system, but I'm a bit
worried anyway.
Do you think it would be possible to pay someone with a deeper knowledge
about this to fix it?
Is net-snmp the only way to get mib-II on linux?
Where should I start to try to solve this? (apart from contacting the
net-snmp ml, which I already did)

Johnny


Frank Fock wrote:
> Hi,
>
> Have you activated the NET-SNMP work-arounds in
> agent++_def.h? The NET-SNMP AgentX implementation
> has many bugs. For some of them, I had implemented
> work-arounds that can be activated in AGENT++.
>
> I have reported those bugs to NET-SNMP.org but they
> seem not to be able to fix them for about four years
> now. When you run the NET-SNMP subagent on a 64bit
> machine, things get even worse.
>
> Best regards,
> Frank
>
> Johnny Ljunggren wrote:
>> Hello
>>
>> I've made a master AgentX that uses net-snmp as subagent to provide
>> mib-II
>> information. I get a general failure if I try to get some of the OIDs.
>> This only occurs when running net-snmp as subagent, because it will
>> return
>> the whole tree if running standalone.
>>
>> # snmpwalk -v 2c -c public localhost
>> <snip some output>
>> IF-MIB::ifOutQLen.2 = Gauge32: 0
>> IF-MIB::ifOutQLen.3 = Gauge32: 0
>> Error in packet.
>> Reason: (genError) A general failure occured
>> Failed object: IF-MIB::ifOutQLen.3
>>
>> # snmpwalk -v 2c -c public localhost IF-MIB::ifOutQLen.3
>> Error in packet.
>> Reason: (genError) A general failure occured
>> Failed object: IF-MIB::ifOutQLen.3
>>
>> My agent outputs this:
>> 20070202.22:25:53: 567: (1)ERROR  : MasterAgentXMib: invalid AgentX
>> response
>> (sd)(sid)(tid)(req-vbs)(resp-vbs): (15), (1), (96), (1), (0)
>>
>> I've tried using the plain master agent from the examples directory, and
>> net-snmp 5.3.1 and 5.4 but the results are the same.
>>
>> I'd appreciate some help on resolving this issue.
>> Where will the problem likely be?
>> What are the usual reasons for this?
>> Are there any other implementations of mib-II that I can use instead of
>> net-snmp?
>>
>> best regards
>
> --
> AGENT++
> http://www.agentpp.com
> http://www.mibexplorer.com
> http://www.mibdesigner.com
>
>


-- 
Johnny Ljunggren, Navtek AS