camel snmp can't resive snmpversion=3 info - apache-camel

Question

When I use came-snmp resive snmp info which version is 3, it can't go to the process method.
#Component
public class SnmpCollect extends RouteBuilder {
#Override
public void configure() throws Exception {
from("snmp:0.0.0.0:162?protocol=udp&type=TRAP&snmpVersion=3&securityName=test").process(new Processor() {
#Override
public void process(Exchange arg0) throws Exception {
}
}
}
Camel xml config:
<camelContext id="camelContext" xmlns="http://camel.apache.org/schema/spring">
<routeBuilder ref="snmpCollect"/>
</camelContext>
But when the snmp info which version is 1 or 2 is coming, it can go to the process method.
What's wrong with it, and how to make it work for "snmpVersion=3" info?
Camel Version is 2.20.1

Answer 1

Let me try to answer your question by providing some info based in what I've found.
Seems that he requirements and interfaces from v1 and v2 version differ from v3, so it doesn't like to work just updating the version. The mainly difference, from what I've seen, is that you need to provide a security model to v3. I saw that you are passing it via parameters, but have you got the chance to check the security requirements?
When I use the TrapTest where is on the camel-snmp github “github.com/apache/camel/blob/master/components/camel-snmp/s‌​rc/…”，it‘s ok.But when I change the snmpVersion to SnmpConstants.version3,it's also error
That's because the interface changed and the test should rely on ScopedPDU model instead of the base class PDU. Also the security model isn't set up in this test:
org.snmp4j.MessageException: Message processing model 3 returned error: Unsupported security model
Unfortunately there isn't any example using camel-snmp with v3, but you could take a look into this example using the inner component snmp4j.