[SNMP4J] Problem:Unable to receive a response

[Mark Chan]

Hi all,

Thanks guys got my problem solved. Apparently i left out the listen
function(). However i did realise that i had to call the
snmp.sendPDU(request, target, null, listener); to get a response. The
snmp.send(request, target) did not work...
Is that okay?

Best Regards,
Mark

The sample code that i used is a as follows:
public static void main(String[] args) throws IOException, InterruptedException{
		
		
		Address targetAddress = GenericAddress.parse("udp:192.168.0.126/161");
		DefaultUdpTransportMapping tempUdp = new DefaultUdpTransportMapping();
		CommunityTarget target = new CommunityTarget();
		target.setCommunity(new OctetString("public"));
		target.setAddress(targetAddress);
		target.setVersion(SnmpConstants.version1);
		target.setRetries(1);
//		 set timeout to 500 milliseconds -> 2*500ms = 1s total timeout
		target.setTimeout(7000);

		target.setVersion(SnmpConstants.version1);
		Snmp snmp = new Snmp(tempUdp);
		tempUdp.listen();
		PDU request = new PDU();
		request.add(new VariableBinding(new OID(".1.3.6.1.2.1.1.3")));
		request.setType(PDU.GETNEXT);
		ResponseListener listener = new ResponseListener() {
				public void onResponse(ResponseEvent event) {
						PDU response = event.getResponse();
						PDU request = event.getRequest();
							if (response == null) {
								System.out.println("Request "+request+" timed out");
							}else{
								System.out.println("Received response "+response+" on request "+
													request);
							}
				}
		};
		snmp.sendPDU(request, target, null, listener);
		Thread.sleep(15000);
	
	}