[SNMP4J] Fwd: Re: reg: USM and MPV3

[Frank Fock]

Hi,

You can have different user names and engine IDs
within a single USM. The USM is designed for that.

Using two different USMs with a single
Snmp instance is possible, but tricky.

You should not do that (and you do not need to).

Best regards,
Frank

On 24.03.2010 06:57, satish gummadelli wrote:
> Hi Frank,
> Thanks for your reply.
>
> we have 2 NMS systems,
> Our Requirement is , each NMS can configure its own engine id and usernames.
> we have multi threaded program which works perfect for one NMS.
> after adding a new NMS we are using the same snmp session object with
> the different USM [which has different username and local engine ids] to
> send the PDU.
>
> Reason why we are adding different USMs are ... because of different
> usernames and engine ids.
>
> I have debugged the code and found that .. USM is giving security name
> not found and it returns null in USM.getUser() method.
>
> our requirement is to have different multiple USMs for one session to
> send the PDUs.
>
>
>
> On Wed, Mar 24, 2010 at 5:44 AM, Frank Fock <fock at agentpp.com
> <mailto:fock at agentpp.com>> wrote:
>
>     Hi,
>
>     Why are you using two different USMs and MPv3s?
>     You can use a single instance one for each of them.
>
>     Best regards,
>     Frank
>
>     On 23.03.2010 12:22, satish gummadelli wrote:
>      > Hi,
>      > I have a requirement to send a snmp pdu to the 2 different NMS.
>      > Till now we have only one NMS and which is running fine with threads.
>      >
>      > Now after adding the second NMS .. which has its own
>     configurations[engine
>      > id, address  and user name].
>      >
>      > what we are doing is we are using only one snmp session to send
>     the pdus.
>      >
>      > and trying to create different USMs and MPV3 for different NMS
>     and it is
>      > giving
>      >
>      > org.snmp4j.MessageException: Message processing model 3 returned
>     error:
>      > Unknown security name
>      > at
>     org.snmp4j.MessageDispatcherImpl.sendPdu(MessageDispatcherImpl.java:465)
>      >
>      >
>      > our requirement is to use only one snmp session , and using
>     threads we will
>      > forward the traps to 2 different NMS  systems ...
>      >
>      >
>      >
>      >
>
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>
> --
> Satish Gummadelli
>

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