Re: 'FORMAT' message written to SNMP log file

On Wed, Nov 2, 2016 at 2:55 PM, Lemons, Terry <[email protected]> wrote:

> Hi
>
>
>
> Apologies if this has been asked for; a quick search through the mailing
> list archive didn’t find it.
>
>
>
> I’ve installed net-snmp-5.7.3-4.2.x86_64 on my SLES 12 SP1 system.
> Because security is important, I’ve read up on and (I hope) correctly
> configured net-snmp to use SNMPv3 with User-based Security Model. I can’t
> use the certificate-bases security model because my Cisco Nexus 9000
> switches don’t support this (I believe)
>
>
>
> Here are my two configuration files:
>
>
>
> ​... snip ...
>
>
>
> # cat /etc/snmp/snmptrapd.conf
>
> ############################################################
> ###############
>
> #
>
> # snmptrapd.conf
>
> #
>
> #   - created by the snmpconf configuration program
>
> #
>
> ############################################################
> ###############
>
> # SECTION: Output formatting for traps received.
>
> #
>
> #   Output from snmptrapd is formatted according to the
>
> #   rules defined by the formatting configuration directives.
>
>
>
> # format2: How SNMPv2 and SNMPv3 traps are formatted.
>
> #   See the snmptrapd.conf manual page for format string details.
>
> #   arguments: formatstring
>
>
>
> ​​
> format2 FORMAT
>
>
>
​... snip ...
​


>
>
> Eventually, I’ll want to send traps via email.  For now, I’m just trying
> to see the traps written to a file.
>
>
>
> When I execute the test command:
>
>
>
> snmptrap -e 0x800000090300059B27CF00 -v 3 -u alerts -a SHA -A
> sha-passphrase -x AES -X aes-passphrase localhost 0 coldStart
>
>
>
> The only output I see written to /var/log/snmptrapd.log is:
>
>
>
> FORMAT
>
>
>
> Every time I repeat my test command, ‘FORMAT’ gets written to
> /var/log/snmptrapd.log.
>
>
>
> So, I’m guessing I have some kind of format error.  But my configuration
> files and test command syntax seem to follow what I see in the Net-SNMP
> wiki (and other) pages.
>
>
>
> I’d value any thoughts/suggestions.
>


​If you look at your snmptrapd.conf (above), you'll see that the 'format'
of the message to be written
is 'FORMAT'​.  as in:

​
format2 FORMAT

the comment above it says you need to look at the man page for details
about how to compose
the value of FORMAT.

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