Hi,
All
I want to send SNMP trap when some value is set into variable with OID
example_string_oid,defined below.
I have written the code as below.
where example_string_oid is OID of my variable.
-->For sending & receiving TRAPs i am using net-snmp-5.0.6.
/* local variable declaration in write method of variable whose OID is
example_string_oid */
static netsnmp_variable_list var_trap;
static netsnmp_variable_list var_obj;
char example_str[]="Trap sent by XYZ";
oid objid_snmptrap[] = { 1, 3, 6, 1, 6, 3, 1, 1, 4, 1, 0
}; /* snmpTrapOID.0 */
oid demo_trap[] = { 1, 3, 6, 1, 4, 1, 999, 1, 5 };
/*demo-trap */
oid example_string_oid[] = { 1, 3, 6, 1, 4, 1, 999, 1, 5 ,0
};
/*code written in COMMIT case of write method of variable whose OID is
example_string_oid*/
/*
* trap definition objects
*/
var_trap.next_variable = &var_obj; /* next variable */
var_trap.name = objid_snmptrap; /* snmpTrapOID.0 */
var_trap.name_length = sizeof(objid_snmptrap) / sizeof(oid);
/* number of sub-ids */
var_trap.type = ASN_OBJECT_ID;
var_trap.val.objid = demo_trap; /* demo-trap objid */
var_trap.val_len = sizeof(demo_trap); /* length in bytes (not
number of subids!) */
/*
* additional objects
*/
var_obj.next_variable = NULL; /* No more variables after this
one */
var_obj.name = example_string_oid;
var_obj.name_length = sizeof(example_string_oid) / sizeof(oid);
/* number of sub-ids */
var_obj.type = ASN_OCTET_STR; /* type of variable */
var_obj.val.string = example_str; /* value */
var_obj.val_len = strlen(example_str);
send_v2trap(&var_trap);
-->I am receiving trap by starting SNMP Trap daemon with options as
bellow.
#:snmptrapd -P -F "TIME=%02.2h:%02.2j:%02.2k TRAP:%W.%q from %b\n"
where
-P : Print formatted incoming traps to stderr.
-F FORMAT :When logging to standard output, use the format in the
string FORMAT.
string for FORMAT i had used is
"TIME=%02TIME=%02.2h:%02.2j:%02.2k TRAP:%W.%q from %b\n"
where
%h : current hour on the local system
%j : current minute on the local s%j current minute
on the
local system
%k : current second on the local system
%W : trap description
%q : trap sub-type (numeric, in decimal)
%b : PDU source address
Problem:
snmp trap daemon is not recieving any traps.
Thank you
regards
Harikumar
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