Hello KM,
I'm not super tuper expert in net-snmp, but from the trace log I would say:
1) your handler that cares for snmp object is NOT CALLED at all. Instead of
it is
called null handler->>
2005-03-07 15:19:35 handler:calling: calling handler null
2005-03-07 15:19:35 trace: netsnmp_null_handler(): null.c, 37
2005-03-07 15:19:35 helper:null: Got request
2005-03-07 15:19:35 trace: netsnmp_null_handler(): null.c, 39
2005-03-07 15:19:35 helper:null: oid:IF-MIB::interfaces.3.0
what points out, that you have problem with registration of handler.
2) Of course, handler null returns... guess what->>
2005-03-07 15:19:35 handler:returned: handler null returned 0
2005-03-07 15:19:35 trace: netsnmp_handle_request(): snmp_agent.c, 2530
2005-03-07 15:19:35 results: request results (status = 0):
2005-03-07 15:19:35 trace: netsnmp_handle_request(): snmp_agent.c, 2533
2005-03-07 15:19:35 results: IF-MIB::interfaces.3.0 = No Such Object
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
To help you more, you should pass code, that cares for registration to this
mailing list.
Then I can help you a little bit more... :)
Until that, start snmpd with -DALL switch and look at the log, esspecially
part that print out registration of your handler...
Have a nice day,
Igor G.
Igor Grasic, Ms. D.
Development Engineer
Iskra Transmission, d. d., Ljubljana
Stegne 11, SI-1000 Ljubljana, Slovenia
phone: +386 1 5003 000
fax: +386 1 5003 500
www.iskratr.si, www.iskratr.com
........................................................
From: Krishna Mohan <[EMAIL PROTECTED]>
not invoking handler
2005-03-07 02:08
Dear All,
I"m trying to add a private/dummy mib into netsnmp agent under
interfaces group as
+--interfaces(2)
|
+-- -R-- Integer32 ifNumber(1)
|
+-- -R-- Integer32 ifKMNumber(3)
Steps followed :
1. Integrate ifKMNumber mib in IF-MIB.txt file.
2. mib2c -c mib2c.scalar.conf -f ifKMNumber .1.3.6.1.2.1.2.3
3. Modify ifKMNumber.c i.e in handle_ifKMNumber under switch case
MODE_GET calling the function snmp_set_var_typed_value with suitable
dataptr & len.
4. ./configure --with-mib-modules="ifKMNumber"
5. make ; make install
Problem : I"m unable to retrieve the value using snmpget. (snmptranslate
shows my mib at this OID)
$snmpget -v2c -c public IPaddress .1.3.6.1.2.1.2.3.0
When tracing the code in /var/log/snmpd.log, I found the following lines
:
2005-03-07 15:19:35 trace: netsnmp_add_varbind_to_cache(): snmp_agent.c,
1474
2005-03-07 15:19:35 snmp_agent: add_vb_to_cache(0x8103c20, 1,
IF-MIB::interfaces.3.0, 0x806f930)
2005-03-07 15:19:35 trace: netsnmp_add_varbind_to_cache(): snmp_agent.c,
1504
2005-03-07 15:19:35 snmp_agent: tp->start IF-MIB::ifEntry.23, tp->end
RFC1213-MIB::atIfIndex,
2005-03-07 15:19:35 trace: netsnmp_call_handlers(): agent_handler.c, 282
2005-03-07 15:19:35 handler:calling: calling main handler bulk_to_next
2005-03-07 15:19:35 trace: netsnmp_call_handler(): agent_handler.c, 322
2005-03-07 15:19:35 handler:calling: calling handler null
2005-03-07 15:19:35 trace: netsnmp_null_handler(): null.c, 37
2005-03-07 15:19:35 helper:null: Got request
2005-03-07 15:19:35 trace: netsnmp_null_handler(): null.c, 39
2005-03-07 15:19:35 helper:null: oid:IF-MIB::interfaces.3.0
2005-03-07 15:19:35 trace: netsnmp_call_handler(): agent_handler.c, 327
2005-03-07 15:19:35 handler:returned: handler null returned 0
2005-03-07 15:19:35 trace: netsnmp_handle_request(): snmp_agent.c, 2530
2005-03-07 15:19:35 results: request results (status = 0):
2005-03-07 15:19:35 trace: netsnmp_handle_request(): snmp_agent.c, 2533
2005-03-07 15:19:35 results: IF-MIB::interfaces.3.0 = No Such Object
available on this agent at this OID
Can anybody give me a solution in detail.
Thanx in Advance
KM
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