hello:
I have install net-snmp agent 4.1.x, and i added a new MIB module.
Add the C code into it.it can start , the init routine can run.
Then when i asked for a snmptranslate command,it gave me the right
result:
[EMAIL PROTECTED]:~/Desktop$ snmptranslate -IR -On MachType
.1.3.6.1.4.1.29881.3.1.1
but when i asked for a snmpget command,it gave me the result:
[EMAIL PROTECTED]:~/Desktop$ snmpget -v 2c -c public 192.168.4.12
.1.3.6.1.4.1.29881.3.1.1.0
SNMPv2-SMI::enterprises.29881.3.1.1.0 = No Such Object available on this
agent at this OID
hy?Why it didn't return the correct value to me?Is there anything
important I ignored?
But when i entered the command as follows,it gave me the correct value:
[EMAIL PROTECTED]:~/Desktop$ snmpgetnext -v 2c -c public 192.168.4.12 .1
SNMPv2-MIB::sysDescr.0 = STRING: Linux sarge 2.6.22.8 #54 Wed Apr 16
10:14:16 CST 2008 mips
through my debug i find the object handler routine is not run when i run
"snmpget -v 2c -c public 192.168.4.12 .1.3.6.1.4.1.29881.3.1.1.0" this command!
Why?
Isn't i can't regster the object MIB tree?
help me!
Oh,i'm sorry , i spellworry, i install the 5.1.4 release.
>How did you add the C code to the agent?
i see the /agent/example/example.c and example.h file.
So i followed the tutorial .
the code is
struct variable1 loogson_variables[] = {
{MACHTYPEGET, ASN_OCTET_STR, RONLY, var_loogson, 1, {1}},
};
oid loogson_variables_oid[] = { 1, 3, 6, 1, 4, 1, 29881, 3, 1 };
void init_loogson(void)
{
printf("in init_loogson\n");
REGISTER_MIB("loogson", loogson_variables, variable1,
loogson_variables_oid);
}
u_char *
var_loogson(struct variable *vp,
oid * name,
size_t * length,
int exact, size_t * var_len, WriteMethod ** write_method)
{
printf("in var_loogson\n");
........
......
}
Then i compile the net-snmp.
Start it with the command "snmpd -f -Le -Dread_config"
the string "in init_loogson" can show in the console.
when i ask for a snmpget command, the string "in var_loogson" is not show! why ?
I follow the FAQ text file in the release package ,
"I've added my code to this template and it still doesn't work. Why not?"
- Is the new module being compiled?
Yes, it can be compiled.
- Is it being included in the agent library?
i run the command "nm libnetsnmpmibs.so.8"
can find "init_loogson" and "var_loogson".
- Is the initialisation routine being run?
Yes, it run , which has shown in above.
- Has the module been registered with the agent?
I do'n know whether it has been registered or not.
"NET-SNMP-MIB::nsModuleTable" module can not be found.
i do not know what to do in this step ?
it's something important i have ignored?
- Is the module handler actually being called at all?
NO, it do not be called!-------------------------------------------------------------------------
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