[SNMP4J] receiving traps

[Frank Fock]

Hi Liav,

The SnmpRequest class is only *an example*. Please use the
org.snmp4j.Snmp class for your SNMP programming. See also
the UML diagramm at:
http://www.snmp4j.org/UMLClassOverview/UMLClassOverview.htm

For SNMPv1/v2c trap receiption the following code is sufficient:

Address targetAddress =
    GenericAddress.parse("udp:0.0.0.0/162");
TransportMapping transport = new DefaultUdpTransportMapping();
Snmp snmp = new Snmp(transport);

CommandResponder trapPrinter = new CommandResponder() {
  public synchronized void processPdu(CommandResponderEvent e) {
    PDU command = e.getPdu();
    if (command != null) {
       System.out.println(command.toString());
    }
  }
};
snmp.addCommandResponder(trapPrinter);
transport.listen();

Hope this helps.

Best regards,
Frank


Liav Elias wrote:

>Hi all,
>
>I am using snmp4j in order to receive traps. I have 2 questions about this
>issue:
>
>1. I am using the class org.snmp4j.tools.console.SnmpRequest in order to
>listen to traps. I succeed to receive the traps (I see output in the console
>for each trap), how can I process the incoming trap, for example to receive
>all the data that was sent with the trap? do I need to implement a certain
>class in order to take care of that?
>2.  Is this the correct way to implement listing to traps in my application?
>I mean with the console class SnmpRequest (calling this class with args[])?
>or do I need to implement other classes in order to use a listener for the
>incoming traps and to process them?
>thanks,
>Liav
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