Re: [Freeipmi-devel] question about SNMP

[dan farmer]

Argh, what a noob, I was looking/grep'ing for SNMP, public, 
private, etc. 

ipmi-pef-config output was even the first one I checked.

Thanks for the pointer, and to the scripts!

dan

^..^




On Feb 19, 2013, at 2:36 PM, Albert Chu <address@hidden> wrote:

> Hi Dan,
> 
> On Mon, 2013-02-18 at 07:29 -0800, dan farmer wrote:
>> Hi folks - I can't quite figure out the data stored about SNMP with
>> respect to IPMI and the BMC and I wondered if someone could shed a
>> small bit of light on the topic.
>> 
>> 
>> Basic problem - I can't get the FreeeIPMI *-config tools (e.g. bmc,
>> pef, i-sensors, i-chassis) command to dump the SNMP community string
>> or any data about SNMP at all.  In ipmitool it does allow one to
>> retrieve it (trivial example - "ipmitool lan print |grep -i snmp"
>> returns "SNMP Community String   : AMI" on one of my boxen.  Mind you,
>> I'm not trying to compare tools or anything, just illustrating!)
> 
> For the community string, it's in the ipmi-pef-config tool.
> 
> # > /usr/sbin/ipmi-pef-config --checkout --section=Community_String
> Section Community_String
>        ## Give valid string
>        Community_String                              public
> EndSection
> 
>> 
>> Is there any way to get that data with the FreeIPMI toolset?  The spec
>> (along with the auxiliary Platform Event Trap Format Specification)
>> implied that the BMC could generate a UDP SNMP packet ("LAN Alerts are
>> accomplished by generating a UDP Datagram that contains an SNMP Trap")
>> to a destination for alerts, but the details elude me.
> 
> Another user of FreeIPMI has some detailed instructions as well as some
> scripts for doing PEF/PET.  Hopefully it'll help you on what you're
> looking for.  PEF/PET is admittedly quite complex.
> 
> http://www.gnu.org/software/freeipmi/README.petalert
> 
> and the scripts are here
> 
> http://www.gnu.org/software/freeipmi/download.html
> 
> Al
> 
>> 
>> Sorry if I'm missing something basic, or a tool that retrieves this.
>> It's gotta be there somewhere ;)
>> 
>> 
>> Thanks!
>> 
>> 
>> dan
>> 
>> 
>> ^..^
>> 
>> 
>> p.s. The 2.0 IPMI spec says in the Get LAN configuration command
>> section (23.2) that the SNMP community string is one of the
>> configuration parameters supported; it says (pg 322):
>> 
>>                data 1:18 - Community String
>> 
>> 
>>                Default = ‘public’. Used to fill in the ‘Community
>>                String’ field in a PET Trap. This string may
>>                optionally be used to hold a vendor-specific string
>>                that is used to provide the network name identity of
>>                the system that generated the event. Printable ASCII
>>                string-. If a full 18 non-null characters are
>>                provided, the last character does not need to be a
>>                null. 18 characters must be written when setting this
>>                parameter, and 18 will be returned when this parameter
>>                is read. The null character, and any following
>>                characters, will be ignored when the Community String
>>                parameter is placed into the PET. The BMC will return
>>                whatever characters were written. I.e. it will not set
>>                bytes following the null to any particular value.
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> _______________________________________________
>> Freeipmi-devel mailing list
>> address@hidden
>> https://lists.gnu.org/mailman/listinfo/freeipmi-devel
> -- 
> Albert Chu
> address@hidden
> Computer Scientist
> High Performance Systems Division
> Lawrence Livermore National Laboratory
>