RE: SNMPv3 on embedded system

Adrian Bica <[email protected]>
Newsgroups gmane.network.net-snmp.user
Message-ID <[email protected]>
Thank you and Dave for your prompt answers.
I wanted to use a non authenticated and not encrypted agent, just to get things started. I assumed that a line "createUser user1" will do this.

Anyway, I changed the line to:
createUser user1 MD5 12345678

and I have the same results (i.e no answer from agent - I use Wireshark sniffer to see the traffic). If I force a wrong password in my manager, then I get an answer saying usmStatsWrongDigests (which is a legitimate answer). But with correct password, the agent doesn't say anything at all.

The engineID seems to be ok (again, forcing a bad one will conduct to some rejection message, good one - no message)




> From: Ron Rader <[email protected]>
> Subject: RE: SNMPv3 on embedded system
> 
>   I see that Dave addressed your configuration
> issue.  From my own
> experience, don't assume you are actually using the same
> engine IDs.
> snmpd creates its own engine ID that does not match the
> "engineID" seed
> specified in /usr/local/share/snmp/snmpd.conf.
> 
>   Check the snmpd persistent configuration store at
> /var/net-snmp/snmpd.conf.  In it you will find an
> "oldEngineID" value.
> Use that to configure your management stations and retry.
> 
>   For example, on my test system I have the following
> data:
> 
> /usr/local/share/snmp/snmpd.conf
> - engineID ""
> 
> /var/net-snmp/snmpd.conf
> - oldEngineID 0x80001f88042222
> 
>   You must use the oldEngineID value in your
> management station
> configuration.
> 
>   You have to jump the engine ID hurdle before you
> face the USM hurdle.
> Also, don't hesitate to use full debug mode on both the
> agent and the
> management applications, that will help a lot in finding
> out why SNMPv3
> traffic gets lost.
> 
>   Ron
> 


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