Re: net-snmp isn't running pass_persist script? how do i know?

I'm having seemingly the same issue, though I'm trying to use the "pass" 
mechanism with a Python script and a proprietary MIB.

Here's my MIB:

-- Prototype MIB for kwared

KWARED-MIB DEFINITIONS ::= BEGIN

IMPORTS
        OBJECT-TYPE, MODULE-IDENTITY, enterprises,
        Integer32
                FROM SNMPv2-SMI;

kwared MODULE-IDENTITY
        LAST-UPDATED "200706011107Z"
        ORGANIZATION
                ""
        CONTACT-INFO
                ""
        DESCRIPTION
                "kwared service"
::= { sendza 1 }


-- sendza ent node

sendza               OBJECT IDENTIFIER ::= { enterprises 111 }

kwared-cycle-int  OBJECT-TYPE
        SYNTAX     Integer32
        MAX-ACCESS read-write
        STATUS     current
        DESCRIPTION
                "kwared cycle interval"
        ::= { kwared 1 }
END


Here's the entry in my snmpd.conf file:

pass .1.3.6.1.4.1.111.1.1 /root/kwared/kwared-mib.py


Here's the output of an snmptranslate command:

[root@myserver ~]# snmptranslate -Tp -IR sendza
+--sendza(111)
   |
   +--kwared(1)
      +-- -RW- Integer32 kwared-cycle-int(1)


Here are the results of various combinations of local snmpwalk and snmpget 
commands:

[root@myserver ~]# snmpwalk -v 2c -c public myserver .1.3.6.1.4.1.111.1.1
KWARED-MIB::kwared-cycle-int = No more variables left in this MIB View (It 
is past the end of the MIB tree)

[root@myserver ~]# snmpwalk -v 2c -c public myserver 1.3.6.1.4.1.111.1.1
KWARED-MIB::kwared-cycle-int = No more variables left in this MIB View (It 
is past the end of the MIB tree)

[root@myserver ~]# snmpwalk -v 1 -c public myserver 1.3.6.1.4.1.111.1.1
End of MIB

[root@myserver ~]# snmpwalk -v 1 -c public myserver .1.3.6.1.4.1.111.1.1
End of MIB


[root@myserver ~]# snmpget -v 1 -c public myserver 1.3.6.1.4.1.111.1.1
Error in packet
Reason: (noSuchName) There is no such variable name in this MIB.
Failed object: KWARED-MIB::kwared-cycle-int

[root@myserver ~]# snmpget -v 1 -c public myserver .1.3.6.1.4.1.111.1.1
Error in packet
Reason: (noSuchName) There is no such variable name in this MIB.
Failed object: KWARED-MIB::kwared-cycle-int

[root@myserver ~]# snmpget -v 2c -c public myserver .1.3.6.1.4.1.111.1.1
KWARED-MIB::kwared-cycle-int = No Such Object available on this agent at 
this OID

[root@myserver ~]# snmpget -v 2c -c public myserver 1.3.6.1.4.1.111.1.1
KWARED-MIB::kwared-cycle-int = No Such Object available on this agent at 
this OID


Any help would be appreciated.

Thanks.

Ken....

----- Original Message ----- 
From: "Abdul-Wahid Paterson" <[email protected]>
To: <[email protected]>
Sent: Monday, June 04, 2007 7:28 AM
Subject: net-snmp isn't running pass_persist script? how do i know?


>I setup a script for reading QoS/traffic shaping information from the
> output of the tc command. The idea being that when I run the script as
> a pass_persist extension for snmpd I can read the information remotely
> from my network monitoring machine so I can see the traffic on the
> different queues in all the router/firewalls on the network.
>
> I add a line to snmpd.conf like this....
> Code:
>
> pass_persist .1.3.6.1.4.1.2021.255 /usr/bin/snmp_persist.pl
>
>
> But when I try to browse it remotely I get this....
>
> Code:
>
> # snmpwalk -c yeahyeah -v 2c 10.0.0.1 .1.3.6.1.4.1.2021.255
> UCD-SNMP-MIB::ucdavis.255 = No Such Instance currently exists at this OID
>
>
> Any ideas why it might not be working or another step I have to
> perform? I am pretty sure the script itself (snmp_perist.pl) works but
> as far as I can see the script is not even being run by snmpd.
>
> Is there any way I can switch on debugging inside snmpd to let me see
> what is happening? All the options I have tried so far don't tell me
> anything.
>
> Regards,
>
> Abdul-Wahid
>
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