subsequent calls to agent after 1st snmpset doesn't get received at agent.
Hi All, I am facing one strange issue with snmpset commands on some of the MIB objects (These usually take a bit more time to execute but i have increased the time delay by option -t 10, which provides enough delay for me to get the results even then this problem exists.) On executing snmpset command for these MIB object gets the reply from the snmpagent for the first time, but the subsequent calls for get and set commands to the snmpagent does't get any response from the agent. The observations made are as follows, When I issue a set on mib-object1 [EMAIL PROTECTED] vmgadag]$ snmpset -v2c -t 10 -c private 192.168.100.140 .1.3.6.1.4.1.12622.2.12.1.5.0 s hello SYSCONF-MIB::mib-object1.0 = STRING: hello [EMAIL PROTECTED] vmgadag]$ snmpset -v2c -t 10 -c private 192.168.100.140 .1.3.6.1.4.1.12622.2.12.1.5.0 s hello1 Timeout: No Response from 192.168.100.140 [EMAIL PROTECTED] vmgadag]$ snmpwalk -v2c -t 10 -c private 192.168.100.140 .1 Timeout: No Response from 192.168.100.140 [EMAIL PROTECTED] vmgadag]$ snmpwalk -v2c -t 100 -c public 192.168.100.140 .1 Timeout: No Response from 192.168.100.140 1. The PID of the hostapd dhcpc get changed. (they get restarted ) 2. When IP address of the Board is set statically the same observation repeates, but a flushing of the command is observed. That is assume that the first snmpset has been issued the reply is obtained. When I issue the second snmpset command there will be no response from the snmpagent. Later on if I issue set interface br0 static-ip 192.168.100.140 on serial console I can see the code associated with the second snmp command getting executed since some debug statements I have inserted scroll on the serial port at this point of time. 3. If I issue set interface br0 static-ip 192.168.100.140 or set snmp status up command, while snmpmaster is still waiting for the response, then I would get the proper response at the master. Is this something like port getting closed or etc. Is that some bady has allready seen these kind of issues with net snmp. Any suggestions please.. Thanks Regards, Gadag ---DISCLAIMER-- The information transmitted herewith is confidential and proprietary information intended only for use by the individual or entity to which it is addressed. If the reader of this message is not the intended recipient, you are hereby notified that any review, retransmission, dissemination, distribution, copying or other use of, or taking of any action in reliance upon this information is strictly prohibited. If you have received this communication in error, please contact the sender and delete the material from your computer. ---
SNMPSET Problem
Hi, check for the following, 1) MIB object which you want to set should be writable. 2) you need to add rwcommunity private default to the snmpd.conf file as the MIB object you are trying to set is under a private section. or else you can specifically make only that MIB as writable. Regards, Gadag ---DISCLAIMER-- The information transmitted herewith is confidential and proprietary information intended only for use by the individual or entity to which it is addressed. If the reader of this message is not the intended recipient, you are hereby notified that any review, retransmission, dissemination, distribution, copying or other use of, or taking of any action in reliance upon this information is strictly prohibited. If you have received this communication in error, please contact the sender and delete the material from your computer. ---
Re: confusion reg Baby steps interface in Net-SNMP
Hi Dave,
Thanks alot for the input,
Thanks Regards,
Gadag
On Thu, 2006-03-02 at 19:05, Dave Shield wrote:
On Tue, 2006-02-28 at 17:07 +0530, V M Gadag wrote:
1) What is Baby step Interface in Net-SNMP?
It's a framework for implementing MIB modules, that breaks
the basic four-pass model (RESERVE1/RESERVE2/ACTION/COMMIT)
of the Net-SNMP agent into a large number of much smaller steps.
The idea is to allow the MIB implementer to concentrate on
one tightly focused aspect at a time, without having to bother
with the wider picture. There's a diagram of how this works
in the 'baby_steps.c' file (and somewhere on the web, though
I can't remember where Robert's alternative FAQ is located).
I believe that the baby_steps helper is only currently used
by the Mibs For Dummies framework (MfD), which takes the same
idea a step further, by defining individual routines for each
task on each MIB object separately.
But you're better off asking Robert about this - he's much more
familiar with this framework than I am. I have a feeling he's
not currently reading the users list (though I could be wrong)
so you might want to ask on the IRC channel.
3) Is that mib2c Baby Steps Interface can be used interchangeably?
if so, what is the difference similarity between them?
mib2c is a tool for generating code (using one of a number of
possible approaches). MfD (which uses the baby_steps helper)
is just one of these.
It's probably impractical to implement a MIB using the MfD
framework *without* using mib2c to generate this code - since
the whole point is to handle as much as possible automatically.
4)Is there any other tool or framework ( as generated by mib2c ) in
Net-Snmp where in i can set / get multiple MIB objects under a single
switch case?
Some of the other mib2c templates will do this - certainly
mib2c.{container,create-dataset,table_data}.conf will.
Those are all concerned with implementing tables.
For scalar objects, the only real option is mib2c.scalar.conf which
(currently) generates a separate handler for each scalar object. But
it *is* possible to merge these into one 'scalar_group' handler.
At some point, I'll have to look at providing a mib2c.scalar_group.conf
template. But don't hold your breath.
If you want to implement several scalars together, the simplest is
probably to generate the multi-handler code file, and I'll show
you how to merge them into one.
That is I think, I should get the multiple requests in a single
call to a handler, which will handle get / set cases.
Note that the agent will inherently process each SNMP request
separately. There may be several varbinds in that request (which
will be passed all together to the relevant handlers). But if you
have two separate SNMP requests, then they will trigger separate
calls to your MIB handler routine.
Dave
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confusion reg Baby steps interface in Net-SNMP
Hi All, Can anyone please help me, ( I am very much new to Net-SNMP ) I was just trying to Instrument the Set functionality for some of the MIB objects using the frame work generated by mib2c, i got the following doubts, 1) What is Baby step Interface in Net-SNMP? 2) Is there anything like, I can replace my implementation of a MIB file using mib2c tool with that of Baby step Interface (I don't know what is this )? 3) Is that mib2c Baby Steps Interface can be used interchangeably? if so, what is the difference similarity between them? 4)Is there any other tool or framework ( as generated by mib2c ) in Net-Snmp where in i can set / get multiple MIB objects under a single switch case? That is I think, I should get the multiple requests in a single call to a handler, which will handle get / set cases. please correct me if I am wrong... Thanks Regards, chetan ---DISCLAIMER-- The information transmitted herewith is confidential and proprietary information intended only for use by the individual or entity to which it is addressed. If the reader of this message is not the intended recipient, you are hereby notified that any review, retransmission, dissemination, distribution, copying or other use of, or taking of any action in reliance upon this information is strictly prohibited. If you have received this communication in error, please contact the sender and delete the material from your computer. ---
