14 messages in net.java.dev.opendmk.usersRe: starting a standalone snmp agent| From | Sent On | Attachments |
|---|---|---|
| Lucio Crusca | Feb 10, 2011 9:03 am | |
| Daniel Fuchs | Feb 10, 2011 9:22 am | |
| Lucio Crusca | Feb 11, 2011 6:49 am | |
| Daniel Fuchs | Feb 11, 2011 7:04 am | |
| Lucio Crusca | Feb 11, 2011 8:20 am | |
| Lucio Crusca | Feb 15, 2011 8:48 am | |
| Daniel Fuchs | Feb 20, 2011 6:10 am | |
| Lucio Crusca | Feb 21, 2011 8:17 am | |
| Daniel Fuchs | Feb 21, 2011 9:28 am | |
| Lucio Crusca | Feb 22, 2011 7:02 am | |
| Daniel Fuchs | Feb 22, 2011 9:07 am | |
| Lucio Crusca | Mar 31, 2011 9:17 am | |
| Daniel Fuchs | Mar 31, 2011 9:39 am | |
| Daniel Fuchs | Mar 31, 2011 9:53 am |
| Subject: | Re: starting a standalone snmp agent | |
|---|---|---|
| From: | Daniel Fuchs (dani...@oracle.com) | |
| Date: | Feb 10, 2011 9:22:24 am | |
| List: | net.java.dev.opendmk.users | |
Hi Lucas,
I think you're trying to get an intermediate node in the OID tree. As a reminder, SNMP only allows you to get leaf node.
Instead of using snmpget, try with snmpgetnext: this will return the next leaf in the tree (that is, the first leaf-node that immediately follows 10.0.0.239:5162 1.3.6.1.4.1.8698.1000.1).
As a reminder also - if you have defined a scalar object in your mib (a leaf) then to get that leaf you need to append a .0 to the OID.
I have explained some of this in my blog - where you can find a trail of articles on SNMP. http://blogs.sun.com/jmxetc/entry/understanding_the_structure_of_management
Cheers,
-- daniel
On 2/10/11 6:04 PM, Lucio Crusca wrote:
Hi,
I'm making some progress with my snmp server (agent) simulator... btw now I've quite clear what a snmp manager is (the client!).
Following the JDMK tutorial [1], I'm trying to code a standalone SNMP agent, and here is the relevant snippet:
SnmpAdaptorServer snmpserv = new SnmpAdaptorServer(port, addr);
snmpserv.start();
// Send a coldStart SNMP Trap snmpserv.setTrapPort(new Integer(port+1)); snmpserv.snmpV1Trap(0, 0, null);
SURFBEAM_SYSTEM_MIB snmpMib = new SURFBEAM_SYSTEM_MIB(); snmpMib.init(); snmpserv.addMib(snmpMib); snmpMib.setSnmpAdaptor(snmpserv);
...
protected void initSurfBeamSystem(MBeanServer server) throws Exception { final String oid = getGroupOid("SurfBeamSystem", "1.3.6.1.4.1.8698.1000.1");
where SURFBEAM_SYSTEM_MIB is the name of the class generated with mibgen.
When I run this code the agent start listening on the specified port. However if I try to query it with snmpget (from linux command line), I get:
$ snmpget -v1 -c public 10.0.0.239:5161 1.3.6.1.4.1.8698.1000.1 Error in packet Reason: (noSuchName) There is no such variable name in this MIB. Failed object: iso.3.6.1.4.1.8698.1000.1
and if I try to use version 2c I get:
$ snmpget -v2c -c public 10.0.0.239:5162 1.3.6.1.4.1.8698.1000.1 iso.3.6.1.4.1.8698.1000.1 = No Such Instance currently exists at this OID
What am I doing wrong?
Thanks in advance, Lucio.