RE: SNMPv3 on embedded system

Well, I figured out that the snmpd server is answering properly when I do the request from the same subnet.
All the day yesterday, I tried requests from a different subnet. There is no firewall problem between them, should be something internally to net-snmp, probably some setting. Any idea?

--- On Thu, 5/19/11, Ron Rader <[email protected]> wrote:

> From: Ron Rader <[email protected]>
> Subject: RE: SNMPv3 on embedded system
> To: "Adrian Bica" <[email protected]>, [email protected]
> Date: Thursday, May 19, 2011, 5:20 PM
> > From: Adrian Bica [mailto:[email protected]]
> 
> > The engineID seems to be ok (again, forcing a bad one
> will conduct to
> some
> > rejection message, good one - no message)
> 
>   Lack of an engine ID error does not equal engine ID
> success.  There
> are many layers that the SNMPv3 traffic needs to pass
> before you can get
> it working.  It will be very useful for you to enable
> debug modes on
> both your agent and management applications to see exactly
> what's
> happening.  If the agent is throwing the traffic away
> there is no way to
> tell why other than debug mode.
> 
>   In my cases (net-snmp 5.4.1 and net-snmp 5.5) failed
> engine ID
> verifications resulted in no error traffic.  This may
> be intentional to
> help prevent brute force discovery of engine ID values.
> 
>   Ron
> 
> 
> 
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