Re: SNMPv3 support in SNMP trap daemon software

Hi,

I got the problem solved for SNMPv3 support. Thanks.

Now I want to know how to create sessions for different users in SNMPv3.

Without setting the session variable "session.securityEngineID" before
calling "snmp_sess_read", I am not able to call the callback function. So, I
suppose for different users, I need to create multiple sessions at startup
only?Is it true? If yes, how it is possible? I am taking user-name,password
and engineId from my config file.

Thanks
Gaurav

On Thu, Jul 22, 2010 at 12:48 PM, Dave Shield <[email protected]>wrote:

> On 22 July 2010 07:49, Gaurav Chaturvedi <[email protected]>
> wrote:
> > If I send engine-id using command  [snmptrap]:
>
> > This is stored in u_char * engine_id as engine_id[0] = 0x01
> >                                                         engine_id[1] =
> 0x02
> >                                                         engine_id[2] =
> 0x03
> >                                                         engine_id[3] =
> 0x04
> >                                                         engine_id[4] =
> 0x05
> >
> > and the length is 5.
>
> This is correct.
>  [Well - strictly speaking it's probably not a valid engineID value,
>   according to the description in the SnmpEngineID TC.
>   But that's not important right now]
>
>
>
> > Whereas, the engine-id we store in user database is session.engineId =
> > "0x0102030405" and length is 12.
>
> Are you talking about the value in the session structure?
> Or the value in the user database?
>
> In any case, you should be assigning a string of binary values,
> not a printable string.   Try configuring the engineID within your
> application using the code I posted yesterday.
>
> Dave
>

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