Re: mib2c linker errors ifTable

permalink · #1 (**permalink**) 02-05-2008

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Hi ,

I want to have a subagent to master net-snmp agent.

Dircectory structure is

~/net-snmp-5.4.1
and
I have wriiten my mib module simple-MIB in /usr/local/share/snmp/mibs
directory and checked with snmptranslate command.
I am generating C files using mib2c tool in ~/simpleTable .

I created my module and generated using mib2c tool.
$ mib2c -c mib2c.mfd.conf simple-MIB::simpleTable

It generated .c and .h files

In simpleTable_data_access.c assigned some defalut values
int simpleName_len=30;
char simpleName[255];
int simpleAddress_len=10;
char simpleAddress [255];
int simpleLocation_len=10;
char simpleLocation_len[255];

In fact I have to read from some file and fill the values . But here just
assigned some values.

When I done with make command , I got the executable , simpleTable

When I do
./simpleTable ,
./simpleTable: symbol lookup error: ./simpleTable: undefined symbol:
netsnmp_cache_create

I have kept an entry in /usr/local/share/snmp/snmpd.conf
master agentx

and the agent is running with command
/usr/local/sbin/snmpd

Please help me in resloving this issue.

Thanks,
Pranesh

On Feb 1, 2008 9:14 PM, Dave Shield <D.T.Shield@liverpool.ac.uk> wrote:

> On 01/02/2008, Pranesh Kulkarni <praneshvk@gmail.com> wrote:
> > May be this sounding simple to you , please help me in this regard,
>
> It's not a matter of being "simple" or complex.
> The problem is that you are not giving us sufficient
> information to work with.
>
> You say that:
>
> > Using mib2c tool , I generated code for the scalar and table and then
> > configured , make and make install
>
> But *how* did you run configure?
> What was the exact command that you used?
> What were the names files produced by mib2c, and where did you put them?
>
> Similarly:
>
> > if I issue snmpget it replies , No Such Instance currently exists at
> this OID
>
> That's omitting all of the useful information.
> What was the exact "snmpget" command that you used?
> It sounds as if you supplied at least one OID to retrieve,
> but what was it? And how does this fit into the structure
> of your MIB, or the initialisation that you've got in your C code?
>
>
> None of us can read your mind. And we don't have access to
> your private files. If you don't tell us exactly what you've tried
> (including the details - not something vague like "issue snmpget"),
> then there is no way on earth that we can even start to guess
> what might be wrong!
>
>
> The more detail you can provide, the greater the chance of
> someone being able to help.
>
> Dave
>

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Hi , I want to have a subagent to master net-snmp agent. Dircectory structure is ~/net-snmp-5.4.1  and I have wriiten my mib module simple-MIB  in /usr/local/share/snmp/mibs directory and checked with snmptranslate command. 
 I am generating C files using mib2c tool in ~/simpleTable . I created my module and generated using mib2c tool.  $ mib2c -c mib2c.mfd.conf simple-MIB::simpleTable    It generated .c and .h files  In simpleTable_data_access.c assigned some defalut values 
    int simpleName_len=30;     char simpleName[255];     int simpleAddress_len=10;     char simpleAddress [255];     int simpleLocation_len=10;     char simpleLocation_len[255]; In fact I have to read from some file and fill the values . But here just assigned some values. 
        &nbs p; When I done with make command , I got the executable , simpleTable      When I do       ./simpleTable ,         ./simpleTable: symbol lookup error: ./simpleTable: undefined symbol: netsnmp_cache_create 
     I have kept an entry in /usr/local/share/snmp/snmpd.conf          master agentx     and the agent is running with command       &nb sp; /usr/local/sbin/snmpd     Please help me in resloving this issue. 
 Thanks, Pranesh <d iv class="gmail_quote">On Feb 1, 2008 9:14 PM, Dave Shield <<a href="mailto:D.T.Shield@liverpool.ac.uk">D.T.Shiel d@liverpool.ac.uk</a>> wrote: <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div class="Ih2E3d">On 01/02/2008, Pranesh Kulkarni <<a href="mailto:praneshvk@gmail.com">praneshvk@gmail. com</a>> wrote: </div><div class="Ih2E3d">> May be this sounding simple to you , please help me in this regard, 
 </div>It's not a matter of being "simple" or complex. The problem is that you are not giving us sufficient information to work with. You say that: <div class="Ih2E3d"> >   Using mib2c tool , I generated code for the scalar and table and then 
>   configured , make and make install </div>But *how* did you run configure? What was the exact command that you used? What were the names files produced by mib2c, and where did you put them? Similarly: 
<div class="Ih2E3d"> >   if I issue snmpget it replies ,  No Such Instance currently exists at this OID </div>That's omitting all of the useful information. What was the exact "snmpget" command that you used? 
It sounds as if you supplied at least one OID to retrieve, but what was it?   And how does this fit into the structure of your MIB, or the initialisation that you've got in your C code? None of us can read your mind.  And we don't have access to 
your private files.   If you don't tell us exactly what you've tried (including the details - not something vague like "issue snmpget"), then there is no way on earth that we can even start to guess 
what might be wrong! The more detail you can provide, the greater the chance of someone being able to help. Dave </blockquote></div> 

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