Object ret = null;
        TransportMapping transport;
            CommunityTarget target = new CommunityTarget();
            target.setCommunity(new OctetString("public"));
            Address address = GenericAddress.parse("udp:localhost/161");
            target.setAddress(address);
            target.setVersion(SnmpConstants.version2c);
            target.setTimeout(3000);

            // create PDU
            PDU pdu = new PDU();
            pdu.setType(PDU.GET);
            pdu.addOID(new VariableBinding(".1.1.1.какой-нибудь-оид"));
            pdu.setNonRepeaters(0);

            Snmp snmp = new Snmp(transport);
            snmp.listen();

            ResponseEvent resp = snmp.send(pdu, target);
            PDU respPDU = resp.getResponse();
            Vector vbs = respPDU.getVariableBindings();
            if (vbs.size() > 0) {
                VariableBinding vb = (VariableBinding) vbs.get(0);
                ret = vb.getVariable();
            } else {
                ret = null;
            }
            snmp.close();